diff options
author | Silenio Quarti | 2002-03-18 17:48:47 +0000 |
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committer | Silenio Quarti | 2002-03-18 17:48:47 +0000 |
commit | d67b8caceb3f10df6a8e238427498db262144133 (patch) | |
tree | 3a6c01dd5bd4f703808b2f86e668d44cca637f6d | |
parent | 9deefd18be8de01a672cfca15620a560b1ae5f22 (diff) | |
download | eclipse.platform.swt-d67b8caceb3f10df6a8e238427498db262144133.tar.gz eclipse.platform.swt-d67b8caceb3f10df6a8e238427498db262144133.tar.xz eclipse.platform.swt-d67b8caceb3f10df6a8e238427498db262144133.zip |
*** empty log message ***v2031_before_patchv2031
3 files changed, 1310 insertions, 940 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java b/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java index 78a789f47e..6602016841 100644 --- a/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java +++ b/bundles/org.eclipse.swt/Eclipse SWT PI/gtk/org/eclipse/swt/internal/gtk/OS.java @@ -57,6 +57,10 @@ public class OS { public static final int GDK_GC_LINE_STYLE = 1 << 15; public static final int GDK_GC_CAP_STYLE = 1 << 16; public static final int GDK_GC_JOIN_STYLE = 1 << 17; + + /* GdkImage byte order */ + public static final int GDK_LSB_FIRST = 0; + public static final int GDK_MSB_FIRST = 1; /* For Display.KeyTable: */ /* Keyboard and mouse masks */ diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java index bf80991565..a9c145cda3 100644 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java +++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/GC.java @@ -5,7 +5,6 @@ package org.eclipse.swt.graphics; * All Rights Reserved */ -import org.eclipse.swt.widgets.*; import org.eclipse.swt.internal.gtk.*; import org.eclipse.swt.internal.*; import org.eclipse.swt.*; @@ -31,14 +30,10 @@ public final class GC { * (Warning: This field is platform dependent) */ public int handle; + Drawable drawable; GCData data; - -/* - * === Constructors === - */ - GC() { } @@ -61,582 +56,11 @@ GC() { */ public GC(Drawable drawable) { if (drawable == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - - data = new GCData(); - handle = drawable.internal_new_GC(data); - this.drawable = drawable; - - // The colors we get from the widget are not always right. - // Get the default GTK_STATE_NORMAL colors -/* setBackground( DefaultGtkStyle.instance().backgroundColorNORMAL() ); - setForeground( DefaultGtkStyle.instance().foregroundColorNORMAL() ); -*/ - - // Feature in GDK. - // Sometimes, gdk_gc_new() doesn't get the font from the control, - // and also, some controls don't contain a font; so when the GC - // was created in internal_new_gc(), the font might or might not - // be set; if the font isn't there, just fall back to default. - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - if (values.font == 0) { -/* OS.gdk_gc_set_font(handle, DefaultGtkStyle.instance().loadDefaultFont() );*/ - } - - if (data.image != null) { - data.image.memGC = this; - /* - * The transparent pixel mask might change when drawing on - * the image. Destroy it so that it is regenerated when - * necessary. - */ - //if (image.transparentPixel != -1) image.destroyMask(); - } - -} - - - -/** - * Returns the background color. - * - * @return the receiver's background color - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -/* - * === Access - Get/Set === - */ - -public Color getBackground() { - if (handle == 0) error(SWT.ERROR_WIDGET_DISPOSED); - GdkColor gdkColor = _getBackgroundGdkColor(); - return Color.gtk_new(gdkColor); -} -/** - * Sets the background color. The background color is used - * for fill operations and as the background color when text - * is drawn. - * - * @param color the new background color for the receiver - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the color is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setBackground(Color color) { - if (color == null) error(SWT.ERROR_NULL_ARGUMENT); - if (color.handle == null) error(SWT.ERROR_NULL_ARGUMENT); - if (handle == 0) error(SWT.ERROR_WIDGET_DISPOSED); - OS.gdk_gc_set_background(handle, color.handle); -} - -/** - * Returns the receiver's foreground color. - * - * @return the color used for drawing foreground things - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Color getForeground() { - if (handle == 0) error(SWT.ERROR_WIDGET_DISPOSED); - GdkColor gdkColor = _getForegroundGdkColor(); - return Color.gtk_new(gdkColor); -} - -/** - * Sets the foreground color. The foreground color is used - * for drawing operations including when text is drawn. - * - * @param color the new foreground color for the receiver - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the color is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setForeground(Color color) { - if (handle == 0) error(SWT.ERROR_WIDGET_DISPOSED); - if (color == null) error(SWT.ERROR_NULL_ARGUMENT); - if (color.handle == null) error(SWT.ERROR_NULL_ARGUMENT); - OS.gdk_gc_set_foreground(handle, color.handle); -} - - - - - - - -/** - * Returns the <em>advance width</em> of the specified character in - * the font which is currently selected into the receiver. - * <p> - * The advance width is defined as the horizontal distance the cursor - * should move after printing the character in the selected font. - * </p> - * - * @param ch the character to measure - * @return the distance in the x direction to move past the character before painting the next - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -/* - * === Access - Get - Calculated === - */ - -public int getAdvanceWidth(char ch) { - byte[] charBuffer = Converter.wcsToMbcs(null, new char[] { ch }); - return OS.gdk_char_width(_getGCFont(), charBuffer[0]); -} -/** - * Returns the width of the specified character in the font - * selected into the receiver. - * <p> - * The width is defined as the space taken up by the actual - * character, not including the leading and tailing whitespace - * or overhang. - * </p> - * - * @param ch the character to measure - * @return the width of the character - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public int getCharWidth(char ch) { - byte[] charBuffer = Converter.wcsToMbcs(null, new char[] { ch }); - int[] lbearing = new int[1]; - int[] rbearing = new int[1]; - int[] unused = new int[1]; - OS.gdk_string_extents(_getGCFont(), charBuffer, lbearing, rbearing, unused, unused, unused); - return rbearing[0] - lbearing[0]; -} -/** - * Returns the bounding rectangle of the receiver's clipping - * region. If no clipping region is set, the return value - * will be a rectangle which covers the entire bounds of the - * object the receiver is drawing on. - * - * @return the bounding rectangle of the clipping region - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Rectangle getClipping() { - if (data.clipRgn == 0) { - int[] width = new int[1]; int[] height = new int[1]; - OS.gdk_drawable_get_size(data.drawable, width, height); - return new Rectangle(0, 0, width[0], height[0]); - } - GdkRectangle rect = new GdkRectangle(); - OS.gdk_region_get_clipbox(data.clipRgn, rect); - return new Rectangle(rect.x, rect.y, rect.width, rect.height); -} -/** - * Sets the region managed by the argument to the current - * clipping region of the receiver. - * - * @param region the region to fill with the clipping region - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the region is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void getClipping(Region region) { - if (region == null) error(SWT.ERROR_NULL_ARGUMENT); - int hRegion = region.handle; - if (data.clipRgn == 0) { - int[] width = new int[1]; int[] height = new int[1]; - OS.gdk_drawable_get_size(data.drawable, width, height); - hRegion = OS.gdk_region_new(); - GdkRectangle rect = new GdkRectangle(); - rect.x = 0; rect.y = 0; - rect.width = (short)width[0]; rect.height = (short)height[0]; - region.handle = OS.gdk_region_union_with_rect(hRegion, rect); - return; - } - hRegion = OS.gdk_region_new(); - region.handle = OS.gdk_regions_union(data.clipRgn, hRegion); -} -/** - * Returns the font currently being used by the receiver - * to draw and measure text. - * - * @return the receiver's font - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Font getFont() { - return Font.gtk_new(_getGCFont()); -} -/** - * Returns a FontMetrics which contains information - * about the font currently being used by the receiver - * to draw and measure text. - * - * @return font metrics for the receiver's font - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -// Not done -public FontMetrics getFontMetrics() { - int fontHandle = _getGCFont(); - if (fontHandle==0) { - error(SWT.ERROR_UNSPECIFIED); - } - return FontMetrics.gtk_new(fontHandle); -} - -/** - * Returns the receiver's line style, which will be one - * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>, - * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or - * <code>SWT.LINE_DASHDOTDOT</code>. - * - * @return the style used for drawing lines - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public int getLineStyle() { - return data.lineStyle; -} -/** - * Returns the width that will be used when drawing lines - * for all of the figure drawing operations (that is, - * <code>drawLine</code>, <code>drawRectangle</code>, - * <code>drawPolyline</code>, and so forth. - * - * @return the receiver's line width - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public int getLineWidth() { - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - return values.line_width; -} -/** - * Returns <code>true</code> if this GC is drawing in the mode - * where the resulting color in the destination is the - * <em>exclusive or</em> of the color values in the source - * and the destination, and <code>false</code> if it is - * drawing in the mode where the destination color is being - * replaced with the source color value. - * - * @return <code>true</code> true if the receiver is in XOR mode, and false otherwise - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public boolean getXORMode() { - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - return values.function == OS.GDK_XOR; -} -/** - * Returns <code>true</code> if the receiver has a clipping - * region set into it, and <code>false</code> otherwise. - * If this method returns false, the receiver will draw on all - * available space in the destination. If it returns true, - * it will draw only in the area that is covered by the region - * that can be accessed with <code>getClipping(region)</code>. - * - * @return <code>true</code> if the GC has a clipping region, and <code>false</code> otherwise - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public boolean isClipped() { - return data.clipRgn != 0; -} - - -/** - * Sets the area of the receiver which can be changed - * by drawing operations to the rectangular area specified - * by the arguments. - * - * @param x the x coordinate of the clipping rectangle - * @param y the y coordinate of the clipping rectangle - * @param width the width of the clipping rectangle - * @param height the height of the clipping rectangle - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setClipping(int x, int y, int width, int height) { -/* if (data.clipRgn == 0) data.clipRgn = OS.gdk_region_new(); - GdkRectangle rect = new GdkRectangle(); - rect.x = (short)x; rect.y = (short)y; - rect.width = (short)width; rect.height = (short)height; - OS.gdk_gc_set_clip_rectangle(handle, rect); - data.clipRgn = OS.gdk_regions_subtract(data.clipRgn, data.clipRgn); - data.clipRgn = OS.gdk_region_union_with_rect(data.clipRgn, rect);*/ -} -/** - * Sets the area of the receiver which can be changed - * by drawing operations to the rectangular area specified - * by the argument. - * - * @param rect the clipping rectangle - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setClipping(Rectangle rect) { - if (rect == null) error(SWT.ERROR_NULL_ARGUMENT); - setClipping (rect.x, rect.y, rect.width, rect.height); -} -/** - * Sets the area of the receiver which can be changed - * by drawing operations to the region specified - * by the argument. - * - * @param rect the clipping region. - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setClipping(Region region) { -/* if (data.clipRgn == 0) data.clipRgn = OS.gdk_region_new(); - if (region == null) { - data.clipRgn = OS.gdk_regions_subtract(data.clipRgn, data.clipRgn); - OS.gdk_gc_set_clip_mask(handle, OS.GDK_NONE); - } else { - data.clipRgn = OS.gdk_regions_subtract(data.clipRgn, data.clipRgn); - data.clipRgn = OS.gdk_regions_union(region.handle, data.clipRgn); - OS.gdk_gc_set_clip_region(handle, region.handle); - }*/ -} -/** - * Sets the font which will be used by the receiver - * to draw and measure text to the argument. If the - * argument is null, then a default font appropriate - * for the platform will be used instead. - * - * @param font the new font for the receiver, or null to indicate a default font - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setFont(Font font) { -/* int fontHandle = 0; - if (font == null) { - GtkStyle gtkStyle = new GtkStyle(); - int style = OS.gtk_widget_get_default_style(); - OS.memmove(gtkStyle, style, GtkStyle.sizeof); - fontHandle = gtkStyle.font; - } else { - fontHandle = font.handle; - } - OS.gdk_gc_set_font(handle, fontHandle);*/ + GCData data = new GCData(); + int gdkGC = drawable.internal_new_GC(data); + init(drawable, data, gdkGC); } -/** - * Sets the receiver's line style to the argument, which must be one - * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>, - * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or - * <code>SWT.LINE_DASHDOTDOT</code>. - * - * @param lineStyle the style to be used for drawing lines - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setLineStyle(int lineStyle) { - switch (lineStyle) { - case SWT.LINE_SOLID: - this.data.lineStyle = lineStyle; - OS.gdk_gc_set_line_attributes(handle, 0, OS.GDK_LINE_SOLID, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); - return; - case SWT.LINE_DASH: - OS.gdk_gc_set_dashes(handle, 0, new byte[] {6, 2}, 2); - break; - case SWT.LINE_DOT: - OS.gdk_gc_set_dashes(handle, 0, new byte[] {3, 1}, 2); - break; - case SWT.LINE_DASHDOT: - OS.gdk_gc_set_dashes(handle, 0, new byte[] {6, 2, 3, 1}, 4); - break; - case SWT.LINE_DASHDOTDOT: - OS.gdk_gc_set_dashes(handle, 0, new byte[] {6, 2, 3, 1, 3, 1}, 6); - break; - default: - error(SWT.ERROR_INVALID_ARGUMENT); - } - this.data.lineStyle = lineStyle; - OS.gdk_gc_set_line_attributes(handle, 0, OS.GDK_LINE_DOUBLE_DASH, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); -} -/** - * Sets the width that will be used when drawing lines - * for all of the figure drawing operations (that is, - * <code>drawLine</code>, <code>drawRectangle</code>, - * <code>drawPolyline</code>, and so forth. - * - * @param lineWidth the width of a line - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setLineWidth(int width) { - if (data.lineStyle == SWT.LINE_SOLID) { - OS.gdk_gc_set_line_attributes(handle, width, OS.GDK_LINE_SOLID, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); - } else { - OS.gdk_gc_set_line_attributes(handle, width, OS.GDK_LINE_DOUBLE_DASH, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); - } -} -/** - * If the argument is <code>true</code>, puts the receiver - * in a drawing mode where the resulting color in the destination - * is the <em>exclusive or</em> of the color values in the source - * and the destination, and if the argument is <code>false</code>, - * puts the receiver in a drawing mode where the destination color - * is replaced with the source color value. - * - * @param xor if <code>true</code>, then <em>xor</em> mode is used, otherwise <em>source copy</em> mode is used - * - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setXORMode(boolean val) { - if (val) { - OS.gdk_gc_set_function(handle, OS.GDK_XOR); - } else { - OS.gdk_gc_set_function(handle, OS.GDK_COPY); - } -} -/** - * Returns the extent of the given string. No tab - * expansion or carriage return processing will be performed. - * <p> - * The <em>extent</em> of a string is the width and height of - * the rectangular area it would cover if drawn in a particular - * font (in this case, the current font in the receiver). - * </p> - * - * @param string the string to measure - * @return a point containing the extent of the string - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Point stringExtent(String string) { - if (string == null) error(SWT.ERROR_NULL_ARGUMENT); - byte[] buffer = Converter.wcsToMbcs(null, string, true); - int width = OS.gdk_string_width(_getGCFont(), buffer); - int height = OS.gdk_string_height(_getGCFont(), buffer); - return new Point(width, height); -} -/** - * Returns the extent of the given string. Tab expansion and - * carriage return processing are performed. - * <p> - * The <em>extent</em> of a string is the width and height of - * the rectangular area it would cover if drawn in a particular - * font (in this case, the current font in the receiver). - * </p> - * - * @param string the string to measure - * @return a point containing the extent of the string - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public Point textExtent(String string) { - if (string == null) error(SWT.ERROR_NULL_ARGUMENT); - byte[] buffer = Converter.wcsToMbcs(null, string, true); - int width = OS.gdk_string_width(_getGCFont(), buffer); - int height = OS.gdk_string_height(_getGCFont(), buffer); - return new Point(width, height); -} - - - -/* - * === Access - Internal utils === - */ - -private GdkGCValues _getGCValues() { - GdkGCValues values = new GdkGCValues(); - OS.gdk_gc_get_values(handle, values); - return values; -} -private GdkColor _getForegroundGdkColor() { - GdkGCValues values = _getGCValues(); - GdkColor color = new GdkColor(); - color.pixel = values.foreground_pixel; - color.red = values.foreground_red; - color.green = values.foreground_green; - color.blue = values.foreground_blue; - return color; -} -private GdkColor _getBackgroundGdkColor() { - GdkGCValues values = _getGCValues(); - GdkColor color = new GdkColor(); - color.pixel = values.background_pixel; - color.red = values.background_red; - color.green = values.background_green; - color.blue = values.background_blue; - return color; -} -private int _getGCFont() { - GdkGCValues values = _getGCValues(); - if (values.font==0) { - values.font = OS.gdk_font_load(Converter.wcsToMbcs(null, "fixed", true)); - if (values.font == 0) SWT.error(SWT.ERROR_NO_HANDLES); - } - return values.font; -} - - - /** * Copies a rectangular area of the receiver at the source * position onto the receiver at the destination position. @@ -652,9 +76,6 @@ private int _getGCFont() { * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> * </ul> */ -/* - * === Drawing operations proper === - */ /** * Copies a rectangular area of the receiver at the specified @@ -676,16 +97,11 @@ public void copyArea(Image image, int x, int y) { if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); if (image.type != SWT.BITMAP || image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); Rectangle rect = image.getBounds(); - int xGC = OS.gdk_gc_new(image.pixmap); - if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); - // is it possible/necessary to set the subwindow mode?? - OS.gdk_window_copy_area (image.pixmap, // dest window - xGC, - 0, 0, // dest coords - image.pixmap, // src window - x, y, // src coords - rect.width, rect.height); - OS.gdk_gc_destroy(xGC); + int gdkGC = OS.gdk_gc_new(image.pixmap); + if (gdkGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); + OS.gdk_gc_set_subwindow(gdkGC, OS.GDK_INCLUDE_INFERIORS); + OS.gdk_draw_drawable(image.pixmap, gdkGC, data.drawable, x, y, 0, 0, rect.width, rect.height); + OS.g_object_unref(gdkGC); } /** @@ -704,10 +120,56 @@ public void copyArea(Image image, int x, int y) { * </ul> */ public void copyArea(int srcX, int srcY, int width, int height, int destX, int destY) { - OS.gdk_window_copy_area (data.drawable, handle, - destX, destY, - data.drawable, - srcX, srcY, width, height); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (width <= 0 || height <= 0) return; + int deltaX = destX - srcX, deltaY = destY - srcY; + if (deltaX == 0 && deltaY == 0) return; + int drawable = data.drawable; + OS.gdk_gc_set_exposures(handle, true); + OS.gdk_draw_drawable(drawable, handle, drawable, srcX, srcY, destX, destY, width, height); + OS.gdk_gc_set_exposures(handle, false); + if (data.image != null) return; + boolean disjoint = (destX + width < srcX) || (srcX + width < destX) || (destY + height < srcY) || (srcY + height < destY); + if (disjoint) { + OS.gdk_window_clear_area_e(drawable, srcX, srcY, width, height); + } else { + if (deltaX != 0) { + int newX = destX - deltaX; + if (deltaX < 0) newX = destX + width; + OS.gdk_window_clear_area_e(drawable, newX, srcY, Math.abs(deltaX), height); + } + if (deltaY != 0) { + int newY = destY - deltaY; + if (deltaY < 0) newY = destY + height; + OS.gdk_window_clear_area_e(drawable, srcX, newY, width, Math.abs(deltaY)); + } + } +} + +/** + * Disposes of the operating system resources associated with + * the graphics context. Applications must dispose of all GCs + * which they allocate. + */ +public void dispose() { + if (handle == 0) return; + if (data.device.isDisposed()) return; + + /* Free resources */ + int clipRgn = data.clipRgn; + if (clipRgn != 0) OS.gdk_region_destroy(clipRgn); + Image image = data.image; + if (image != null) image.memGC = null; + + /* Dispose the GC */ + drawable.internal_dispose_GC(handle, data); + + data.drawable = data.clipRgn = 0; + drawable = null; + data.image = null; + data = null; + handle = 0; + } /** @@ -743,6 +205,7 @@ public void copyArea(int srcX, int srcY, int width, int height, int destX, int d * </ul> */ public void drawArc(int x, int y, int width, int height, int startAngle, int endAngle) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (width < 0) { x = x + width; width = -width; @@ -752,10 +215,11 @@ public void drawArc(int x, int y, int width, int height, int startAngle, int end height = -height; } if (width == 0 || height == 0 || endAngle == 0) { - error(SWT.ERROR_INVALID_ARGUMENT); + SWT.error(SWT.ERROR_INVALID_ARGUMENT); } OS.gdk_draw_arc(data.drawable, handle, 0, x, y, width, height, startAngle * 64, endAngle * 64); } + /** * Draws a rectangle, based on the specified arguments, which has * the appearance of the platform's <em>focus rectangle</em> if the @@ -774,6 +238,7 @@ public void drawArc(int x, int y, int width, int height, int startAngle, int end * @see #drawRectangle */ public void drawFocus(int x, int y, int width, int height) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); GtkStyle style = new GtkStyle(OS.gtk_widget_get_default_style()); GdkColor color = new GdkColor(); color.pixel = style.fg0_pixel; @@ -790,6 +255,7 @@ public void drawFocus(int x, int y, int width, int height) { color.blue = values.foreground_blue; OS.gdk_gc_set_foreground(handle, color); } + /** * Draws the given image in the receiver at the specified * coordinates. @@ -810,11 +276,10 @@ public void drawFocus(int x, int y, int width, int height) { * </ul> */ public void drawImage(Image image, int x, int y) { - if (image == null) error(SWT.ERROR_NULL_ARGUMENT); - int pixmap = image.pixmap; - int [] width = new int [1]; int [] height = new int [1]; - OS.gdk_drawable_get_size(pixmap, width, height); - drawImage(image, 0, 0, width[0], height[0], x, y, width[0], height[0]); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + drawImage(image, 0, 0, -1, -1, x, y, -1, -1, true); } /** @@ -847,76 +312,149 @@ public void drawImage(Image image, int x, int y) { * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> * </ul> */ -public void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight) { - /* basic sanity checks */ +public void drawImage(Image image, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight) { if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (srcWidth == 0 || srcHeight == 0 || destWidth == 0 || destHeight == 0) return; if (srcX < 0 || srcY < 0 || srcWidth < 0 || srcHeight < 0 || destWidth < 0 || destHeight < 0) { SWT.error (SWT.ERROR_INVALID_ARGUMENT); } - if (srcImage == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (srcImage.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + drawImage(image, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, false); +} - /* source image properties */ +void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) { int[] width = new int[1]; int[] height = new int[1]; OS.gdk_drawable_get_size(srcImage.pixmap, width, height); - if ((srcY + srcWidth > width[0]) || - (srcY + srcHeight > height[0])) { - error(SWT.ERROR_INVALID_ARGUMENT); + int imgWidth = width[0]; + int imgHeight = height[0]; + if (simple) { + srcWidth = destWidth = imgWidth; + srcHeight = destHeight = imgHeight; + } else { + simple = srcX == 0 && srcY == 0 && + srcWidth == destWidth && destWidth == imgWidth && + srcHeight == destHeight && destHeight == imgHeight; + if (srcX + srcWidth > imgWidth || srcY + srcHeight > imgHeight) { + SWT.error(SWT.ERROR_INVALID_ARGUMENT); + } + } + if (srcImage.alpha != -1 || srcImage.alphaData != null) { + drawImageAlpha(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); + } else if (srcImage.transparentPixel != -1 || srcImage.mask != 0) { + drawImageMask(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); + } else { + drawImage(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); } - - /* Special case: If we don't need to scale, and there is no alpha/mask, - * then we can just blit the image inside the X server - no net traffic - */ - boolean needScaling = (srcWidth != destWidth) || (srcHeight != destHeight); - boolean simple = !needScaling & (srcImage.mask == 0); - - if (simple) { - OS.gdk_draw_pixmap(data.drawable, handle, srcImage.pixmap, - srcX, srcY, - destX, destY, - width[0], height[0]); +} +void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight) { + if (srcWidth == destWidth && srcHeight == destHeight) { + OS.gdk_draw_drawable(data.drawable, handle, srcImage.pixmap, srcX, srcY, destX, destY, destWidth, destHeight); + } else { + int pixbuf = scale(srcImage.pixmap, srcX, srcY, srcWidth, srcHeight, destWidth, destHeight); + OS.gdk_pixbuf_render_to_drawable(pixbuf, data.drawable, handle, 0, 0, destX, destY, destWidth, destHeight, OS.GDK_RGB_DITHER_NORMAL, 0, 0); + OS.g_object_unref(pixbuf); + } +} +void drawImageAlpha(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight) { + if (srcImage.alpha == 0) return; + if (srcImage.alpha == 255) { + drawImage(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, imgWidth, imgHeight); return; } - - - /* Fetch a local GdkPixbuf from server */ - Pixbuffer pixbuf = new Pixbuffer(srcImage); - - /* Scale if necessary */ - if ((srcWidth != destWidth) || (srcHeight != destHeight)) { - double scale_x = (double)destWidth / (double)srcWidth; - double scale_y = (double)destHeight / (double)srcHeight; - double offset_x = - srcX * scale_x; - double offset_y = - srcY * scale_y; - - int destSizePixbuf = GDKPIXBUF.gdk_pixbuf_new ( - GDKPIXBUF.GDK_COLORSPACE_RGB(), - true, 8, destWidth, destHeight); - GDKPIXBUF.gdk_pixbuf_scale( - pixbuf.handle, // src, - destSizePixbuf, - 0, - 0, - destWidth, destHeight, - offset_x, offset_y, - scale_x, scale_y, - GDKPIXBUF.GDK_INTERP_BILINEAR); - pixbuf.handle = destSizePixbuf; + int pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB(), true, 8, srcWidth, srcHeight); + if (pixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int colormap = OS.gdk_colormap_get_system(); + OS.gdk_pixbuf_get_from_drawable(pixbuf, srcImage.pixmap, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight); + int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); + int pixels = OS.gdk_pixbuf_get_pixels(pixbuf); + byte[] line = new byte[stride]; + byte alpha = (byte)srcImage.alpha; + byte[] alphaData = srcImage.alphaData; + for (int y=0; y<srcHeight; y++) { + int alphaIndex = (y + srcY) * imgWidth + srcX; + OS.memmove(line, pixels + (y * stride), stride); + for (int x=3; x<stride; x+=4) { + line[x] = alphaData == null ? alpha : alphaData[alphaIndex++]; + } + OS.memmove(pixels + (y * stride), line, stride); } + if (srcWidth != destWidth || srcHeight != destHeight) { + int scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR); + OS.g_object_unref(pixbuf); + if (scaledPixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + pixbuf = scaledPixbuf; + } + OS.gdk_pixbuf_render_to_drawable_alpha( + pixbuf, data.drawable, + 0, 0, destX, destY, destWidth, destHeight, + OS.GDK_PIXBUF_ALPHA_BILEVEL, 128, OS.GDK_RGB_DITHER_NORMAL, 0, 0); + OS.g_object_unref(pixbuf); +} +void drawImageMask(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, int imgWidth, int imgHeight) { + int drawable = data.drawable; + int colorPixmap = srcImage.pixmap; + /* Generate the mask if necessary. */ + if (srcImage.transparentPixel != -1) srcImage.createMask(); + int maskPixmap = srcImage.mask; + if (srcWidth != destWidth || srcHeight != destHeight) { + //NOT DONE - there must be a better way of scaling a GdkBitmap + int pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB(), true, 8, srcWidth, srcHeight); + if (pixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int colormap = OS.gdk_colormap_get_system(); + OS.gdk_pixbuf_get_from_drawable(pixbuf, colorPixmap, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight); + int gdkImagePtr = OS.gdk_drawable_get_image(maskPixmap, 0, 0, imgWidth, imgHeight); + int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); + int pixels = OS.gdk_pixbuf_get_pixels(pixbuf); + if (gdkImagePtr == 0) SWT.error(SWT.ERROR_NO_HANDLES); + byte[] line = new byte[stride]; + for (int y=0; y<srcWidth; y++) { + OS.memmove(line, pixels + (y * stride), stride); + for (int x=0; x<srcHeight; x++) { + if (OS.gdk_image_get_pixel(gdkImagePtr, x + srcX, y + srcY) != 0) { + line[x*4+3] = (byte)0xFF; + } else { + line[x*4+3] = 0; + } + } + OS.memmove(pixels + (y * stride), line, stride); + } + OS.g_object_unref(gdkImagePtr); + int scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR); + OS.g_object_unref(pixbuf); + if (scaledPixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + OS.gdk_pixbuf_render_to_drawable_alpha( + scaledPixbuf, data.drawable, + 0, 0, destX, destY, destWidth, destHeight, + OS.GDK_PIXBUF_ALPHA_BILEVEL, 128, OS.GDK_RGB_DITHER_NORMAL, 0, 0); + OS.g_object_unref(scaledPixbuf); + } else { - /* Paint it */ - GDKPIXBUF.gdk_pixbuf_render_to_drawable_alpha( - pixbuf.handle, - data.drawable, - 0, 0, - destX, destY, - destWidth, destHeight, - GDKPIXBUF.GDK_PIXBUF_ALPHA_BILEVEL, 128, - GDKPIXBUF.GDK_RGB_DITHER_NORMAL, - 0, 0 - ); + /* Blit cliping the mask */ + GdkGCValues values = new GdkGCValues(); + OS.gdk_gc_get_values(handle, values); + OS.gdk_gc_set_clip_mask(handle, maskPixmap); + OS.gdk_gc_set_clip_origin(handle, destX - srcX, destY - srcY); + OS.gdk_draw_drawable(drawable, handle, colorPixmap, srcX, srcY, destX, destY, srcWidth, srcHeight); + OS.gdk_gc_set_values(handle, values, OS.GDK_GC_CLIP_MASK | OS.GDK_GC_CLIP_X_ORIGIN | OS.GDK_GC_CLIP_Y_ORIGIN); + } + + /* Destroy scaled pixmaps */ + if (colorPixmap != 0 && srcImage.pixmap != colorPixmap) OS.g_object_unref(colorPixmap); + if (maskPixmap != 0 && srcImage.mask != maskPixmap) OS.g_object_unref(maskPixmap); + /* Destroy the image mask if the there is a GC created on the image */ + if (srcImage.transparentPixel != -1 && srcImage.memGC != null) srcImage.destroyMask(); +} +int scale(int src, int srcX, int srcY, int srcWidth, int srcHeight, int destWidth, int destHeight) { + int pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB(), false, 8, srcWidth, srcHeight); + if (pixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int colormap = OS.gdk_colormap_get_system(); + OS.gdk_pixbuf_get_from_drawable(pixbuf, src, colormap, srcX, srcY, 0, 0, srcWidth, srcHeight); + int scaledPixbuf = OS.gdk_pixbuf_scale_simple(pixbuf, destWidth, destHeight, OS.GDK_INTERP_BILINEAR); + OS.g_object_unref(pixbuf); + if (scaledPixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + return scaledPixbuf; } /** @@ -933,8 +471,10 @@ public void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcH * </ul> */ public void drawLine(int x1, int y1, int x2, int y2) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); OS.gdk_draw_line (data.drawable, handle, x1, y1, x2, y2); } + /** * Draws the outline of an oval, using the foreground color, * within the specified rectangular area. @@ -957,6 +497,7 @@ public void drawLine(int x1, int y1, int x2, int y2) { * </ul> */ public void drawOval(int x, int y, int width, int height) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (width < 0) { x = x + width; width = -width; @@ -967,6 +508,7 @@ public void drawOval(int x, int y, int width, int height) { } OS.gdk_draw_arc(data.drawable, handle, 0, x, y, width, height, 0, 23040); } + /** * Draws the closed polygon which is defined by the specified array * of integer coordinates, using the receiver's foreground color. The array @@ -985,12 +527,9 @@ public void drawOval(int x, int y, int width, int height) { * </ul> */ public void drawPolygon(int[] pointArray) { - if (pointArray == null) error(SWT.ERROR_NULL_ARGUMENT); - short[] points = new short[pointArray.length]; - for (int i = 0; i < pointArray.length; i++) { - points[i] = (short)pointArray[i]; - } - OS.gdk_draw_polygon(data.drawable, handle, 0, points, points.length / 2); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + OS.gdk_draw_polygon(data.drawable, handle, 0, pointArray, pointArray.length / 2); } /** * Draws the polyline which is defined by the specified array @@ -1010,13 +549,11 @@ public void drawPolygon(int[] pointArray) { * </ul> */ public void drawPolyline(int[] pointArray) { - if (pointArray == null) error(SWT.ERROR_NULL_ARGUMENT); - short[] points = new short[pointArray.length]; - for (int i = 0; i < pointArray.length; i++) { - points[i] = (short)pointArray[i]; - } - OS.gdk_draw_lines(data.drawable, handle, points, points.length / 2); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + OS.gdk_draw_lines(data.drawable, handle, pointArray, pointArray.length / 2); } + /** * Draws the outline of the rectangle specified by the arguments, * using the receiver's foreground color. The left and right edges @@ -1033,6 +570,7 @@ public void drawPolyline(int[] pointArray) { * </ul> */ public void drawRectangle(int x, int y, int width, int height) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (width < 0) { x = x + width; width = -width; @@ -1043,6 +581,7 @@ public void drawRectangle(int x, int y, int width, int height) { } OS.gdk_draw_rectangle(data.drawable, handle, 0, x, y, width, height); } + /** * Draws the outline of the specified rectangle, using the receiver's * foreground color. The left and right edges of the rectangle are at @@ -1060,7 +599,7 @@ public void drawRectangle(int x, int y, int width, int height) { * </ul> */ public void drawRectangle(Rectangle rect) { - if (rect == null) error(SWT.ERROR_NULL_ARGUMENT); + if (rect == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); drawRectangle (rect.x, rect.y, rect.width, rect.height); } /** @@ -1083,6 +622,7 @@ public void drawRectangle(Rectangle rect) { * </ul> */ public void drawRoundRectangle(int x, int y, int width, int height, int arcWidth, int arcHeight) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); int nx = x; int ny = y; int nw = width; @@ -1098,21 +638,43 @@ public void drawRoundRectangle(int x, int y, int width, int height, int arcWidth nh = 0 - nh; ny = ny -nh; } - if (naw < 0) naw = 0 - naw; - if (nah < 0) nah = 0 - nah; + if (naw < 0) + naw = 0 - naw; + if (nah < 0) + nah = 0 - nah; - int naw2 = Compatibility.floor(naw, 2); - int nah2 = Compatibility.floor(nah, 2); - - OS.gdk_draw_arc(data.drawable, handle, 0, nx, ny, naw, nah, 5760, 5760); - OS.gdk_draw_arc(data.drawable, handle, 0, nx, ny + nh - nah, naw, nah, 11520, 5760); - OS.gdk_draw_arc(data.drawable, handle, 0, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760); - OS.gdk_draw_arc(data.drawable, handle, 0, nx + nw - naw, ny, naw, nah, 0, 5760); - OS.gdk_draw_line(data.drawable, handle, nx + naw2, ny, nx + nw - naw2, ny); - OS.gdk_draw_line(data.drawable, handle, nx,ny + nah2, nx, ny + nh - nah2); - OS.gdk_draw_line(data.drawable, handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh); - OS.gdk_draw_line(data.drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2); + int naw2 = naw / 2; + int nah2 = nah / 2; + + int drawable = data.drawable; + if (nw > naw) { + if (nh > nah) { + OS.gdk_draw_arc(drawable, handle, 0, nx, ny, naw, nah, 5760, 5760); + OS.gdk_draw_line(drawable, handle, nx + naw2, ny, nx + nw - naw2, ny); + OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny, naw, nah, 0, 5760); + OS.gdk_draw_line(drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2); + OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760); + OS.gdk_draw_line(drawable,handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh); + OS.gdk_draw_arc(drawable, handle, 0, nx, ny + nh - nah, naw, nah, 11520, 5760); + OS.gdk_draw_line(drawable, handle, nx, ny + nah2, nx, ny + nh - nah2); + } else { + OS.gdk_draw_arc(drawable, handle, 0, nx, ny, naw, nh, 5760, 11520); + OS.gdk_draw_line(drawable, handle, nx + naw2, ny, nx + nw - naw2, ny); + OS.gdk_draw_arc(drawable, handle, 0, nx + nw - naw, ny, naw, nh, 17280, 11520); + OS.gdk_draw_line(drawable,handle, nx + naw2, ny + nh, nx + nw - naw2, ny + nh); + } + } else { + if (nh > nah) { + OS.gdk_draw_arc(drawable, handle, 0, nx, ny, nw, nah, 0, 11520); + OS.gdk_draw_line(drawable, handle, nx + nw, ny + nah2, nx + nw, ny + nh - nah2); + OS.gdk_draw_arc(drawable, handle, 0, nx, ny + nh - nah, nw, nah, 11520, 11520); + OS.gdk_draw_line(drawable,handle, nx, ny + nah2, nx, ny + nh - nah2); + } else { + OS.gdk_draw_arc(drawable, handle, 0, nx, ny, nw, nh, 0, 23040); + } + } } + /** * Draws the given string, using the receiver's current font and * foreground color. No tab expansion or carriage return processing @@ -1155,7 +717,8 @@ public void drawString (String string, int x, int y) { * </ul> */ public void drawString(String string, int x, int y, boolean isTransparent) { - if (string == null) error(SWT.ERROR_NULL_ARGUMENT); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); byte[] buffer = Converter.wcsToMbcs(null, string, true); byte[] buffer1 = Converter.wcsToMbcs(null, "Y", true); int[] unused = new int[1]; @@ -1185,6 +748,7 @@ public void drawString(String string, int x, int y, boolean isTransparent) { } OS.gdk_draw_string(data.drawable, fontHandle, handle, x, y + ascent[0], buffer); } + /** * Draws the given string, using the receiver's current font and * foreground color. Tab expansion and carriage return processing @@ -1206,6 +770,7 @@ public void drawString(String string, int x, int y, boolean isTransparent) { public void drawText(String string, int x, int y) { drawText(string, x, y, false); } + /** * Draws the given string, using the receiver's current font and * foreground color. Tab expansion and carriage return processing @@ -1227,7 +792,8 @@ public void drawText(String string, int x, int y) { * </ul> */ public void drawText(String string, int x, int y, boolean isTransparent) { - if (string == null) error(SWT.ERROR_NULL_ARGUMENT); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); byte[] buffer = Converter.wcsToMbcs(null, string, true); byte[] buffer1 = Converter.wcsToMbcs(null, "Y", true); int fontHandle = _getGCFont(); @@ -1298,6 +864,22 @@ public void drawText (String string, int x, int y, int flags) { } /** + * Compares the argument to the receiver, and returns true + * if they represent the <em>same</em> object using a class + * specific comparison. + * + * @param object the object to compare with this object + * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise + * + * @see #hashCode + */ +public boolean equals(Object object) { + if (object == this) return true; + if (!(object instanceof GC)) return false; + return handle == ((GC)object).handle; +} + +/** * Fills the interior of a circular or elliptical arc within * the specified rectangular area, with the receiver's background * color. @@ -1333,6 +915,7 @@ public void drawText (String string, int x, int y, int flags) { * @see #drawArc */ public void fillArc(int x, int y, int width, int height, int startAngle, int endAngle) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (width < 0) { x = x + width; width = -width; @@ -1342,7 +925,7 @@ public void fillArc(int x, int y, int width, int height, int startAngle, int end height = -height; } if (width == 0 || height == 0 || endAngle == 0) { - error(SWT.ERROR_INVALID_ARGUMENT); + SWT.error(SWT.ERROR_INVALID_ARGUMENT); } GdkGCValues values = new GdkGCValues(); OS.gdk_gc_get_values(handle, values); @@ -1388,11 +971,10 @@ public void fillGradientRectangle(int x, int y, int width, int height, boolean v GdkGCValues values = new GdkGCValues(); OS.gdk_gc_get_values(handle, values); - GdkColor foregroundGdkColor = new GdkColor(); RGB backgroundRGB, foregroundRGB; - backgroundRGB = Color.gtk_getRGBIntensities(_getBackgroundGdkColor()); - foregroundRGB = Color.gtk_getRGBIntensities(_getForegroundGdkColor()); + backgroundRGB = getBackground().getRGB(); + foregroundRGB = getForeground().getRGB(); RGB fromRGB, toRGB; fromRGB = foregroundRGB; @@ -1414,7 +996,7 @@ public void fillGradientRectangle(int x, int y, int width, int height, boolean v fillRectangle(x, y, width, height); return; } - ImageData.fillGradientRectangle(this, Display.getCurrent(), + ImageData.fillGradientRectangle(this, data.device, x, y, width, height, vertical, fromRGB, toRGB, 8, 8, 8); } @@ -1436,6 +1018,7 @@ public void fillGradientRectangle(int x, int y, int width, int height, boolean v * @see #drawOval */ public void fillOval(int x, int y, int width, int height) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (width < 0) { x = x + width; width = -width; @@ -1459,6 +1042,7 @@ public void fillOval(int x, int y, int width, int height) { color.blue = values.foreground_blue; OS.gdk_gc_set_foreground(handle, color); } + /** * Fills the interior of the closed polygon which is defined by the * specified array of integer coordinates, using the receiver's @@ -1479,11 +1063,8 @@ public void fillOval(int x, int y, int width, int height) { * @see #drawPolygon */ public void fillPolygon(int[] pointArray) { - if (pointArray == null) error(SWT.ERROR_NULL_ARGUMENT); - short[] points = new short[pointArray.length]; - for (int i = 0; i < pointArray.length; i++) { - points[i] = (short)pointArray[i]; - } + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); GdkGCValues values = new GdkGCValues(); OS.gdk_gc_get_values(handle, values); GdkColor color = new GdkColor(); @@ -1492,13 +1073,14 @@ public void fillPolygon(int[] pointArray) { color.green = values.background_green; color.blue = values.background_blue; OS.gdk_gc_set_foreground(handle, color); - OS.gdk_draw_polygon(data.drawable, handle, 1, points, points.length / 2); + OS.gdk_draw_polygon(data.drawable, handle, 1, pointArray, pointArray.length / 2); color.pixel = values.foreground_pixel; color.red = values.foreground_red; color.green = values.foreground_green; color.blue = values.foreground_blue; OS.gdk_gc_set_foreground(handle, color); } + /** * Fills the interior of the rectangle specified by the arguments, * using the receiver's background color. @@ -1515,6 +1097,7 @@ public void fillPolygon(int[] pointArray) { * @see #drawRectangle */ public void fillRectangle(int x, int y, int width, int height) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); if (width < 0) { x = x + width; width = -width; @@ -1523,7 +1106,6 @@ public void fillRectangle(int x, int y, int width, int height) { y = y + height; height = -height; } - GdkGCValues values = new GdkGCValues(); OS.gdk_gc_get_values(handle, values); GdkColor color = new GdkColor(); @@ -1539,6 +1121,7 @@ public void fillRectangle(int x, int y, int width, int height) { color.blue = values.foreground_blue; OS.gdk_gc_set_foreground(handle, color); } + /** * Fills the interior of the specified rectangle, using the receiver's * background color. @@ -1555,9 +1138,11 @@ public void fillRectangle(int x, int y, int width, int height) { * @see #drawRectangle */ public void fillRectangle(Rectangle rect) { - if (rect == null) error(SWT.ERROR_NULL_ARGUMENT); + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (rect == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); fillRectangle(rect.x, rect.y, rect.width, rect.height); } + /** * Fills the interior of the round-cornered rectangle specified by * the arguments, using the receiver's background color. @@ -1576,6 +1161,7 @@ public void fillRectangle(Rectangle rect) { * @see #drawRoundRectangle */ public void fillRoundRectangle(int x, int y, int width, int height, int arcWidth, int arcHeight) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); int nx = x; int ny = y; int nw = width; @@ -1595,12 +1181,9 @@ public void fillRoundRectangle(int x, int y, int width, int height, int arcWidth naw = 0 - naw; if (nah < 0) nah = 0 - nah; - - naw = Math.min(naw,nw); - nah = Math.min(nah, nh); - int naw2 = Compatibility.round(naw, 2); - int nah2 = Compatibility.round(nah, 2); + int naw2 = naw / 2; + int nah2 = nah / 2; GdkGCValues values = new GdkGCValues(); OS.gdk_gc_get_values(handle, values); @@ -1610,13 +1193,32 @@ public void fillRoundRectangle(int x, int y, int width, int height, int arcWidth color.green = values.background_green; color.blue = values.background_blue; OS.gdk_gc_set_foreground(handle, color); - OS.gdk_draw_arc(data.drawable, handle, 1, nx, ny, naw, nah, 5760, 5760); - OS.gdk_draw_arc(data.drawable, handle, 1, nx, ny + nh - nah, naw, nah, 11520, 5760); - OS.gdk_draw_arc(data.drawable, handle, 1, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760); - OS.gdk_draw_arc(data.drawable, handle, 1, nx + nw - naw, ny, naw, nah, 0, 5760); - OS.gdk_draw_rectangle(data.drawable, handle, 1, nx + naw2, ny, nw - naw, nh); - OS.gdk_draw_rectangle(data.drawable, handle, 1, nx, ny + nah2, naw2, nh - nah); - OS.gdk_draw_rectangle(data.drawable, handle, 1, nx + nw - (naw / 2), ny + nah2, naw2, nh -nah); + + int drawable = data.drawable; + if (nw > naw) { + if (nh > nah) { + OS.gdk_draw_arc(drawable, handle, 1, nx, ny, naw, nah, 5760, 5760); + OS.gdk_draw_arc(drawable, handle, 1, nx, ny + nh - nah, naw, nah, 11520, 5760); + OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny + nh - nah, naw, nah, 17280, 5760); + OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny, naw, nah, 0, 5760); + OS.gdk_draw_rectangle(drawable, handle, 1, nx + naw2, ny, nw - naw, nh); + OS.gdk_draw_rectangle(drawable, handle, 1, nx, ny + nah2, naw2, nh - nah); + OS.gdk_draw_rectangle(drawable, handle, 1, nx + nw - naw2, ny + nah2, naw2, nh -nah); + } else { + OS.gdk_draw_arc(drawable, handle, 1, nx, ny, naw, nh, 5760, 11520); + OS.gdk_draw_rectangle(drawable, handle, 1, nx + naw2, ny, nw - naw, nh); + OS.gdk_draw_arc(drawable, handle, 1, nx + nw - naw, ny, naw, nh, 17280, 11520); + } + } else { + if (nh > nah) { + OS.gdk_draw_arc(drawable, handle, 1, nx, ny, nw, nah, 0, 11520); + OS.gdk_draw_rectangle(drawable, handle, 1, nx, ny + nah2, nw, nh - nah); + OS.gdk_draw_arc(drawable, handle, 1, nx, ny + nh - nah, nw, nah, 11520, 11520); + } else { + OS.gdk_draw_arc(drawable, handle, 1, nx, ny, nw, nh, 0, 23040); + } + } + color.pixel = values.foreground_pixel; color.red = values.foreground_red; color.green = values.foreground_green; @@ -1625,22 +1227,245 @@ public void fillRoundRectangle(int x, int y, int width, int height, int arcWidth } /** - * Compares the argument to the receiver, and returns true - * if they represent the <em>same</em> object using a class - * specific comparison. + * Returns the <em>advance width</em> of the specified character in + * the font which is currently selected into the receiver. + * <p> + * The advance width is defined as the horizontal distance the cursor + * should move after printing the character in the selected font. + * </p> * - * @param object the object to compare with this object - * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise + * @param ch the character to measure + * @return the distance in the x direction to move past the character before painting the next * - * @see #hashCode + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> */ -/* - * === As yet unclassified === +public int getAdvanceWidth(char ch) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); +// byte[] charBuffer = Converter.wcsToMbcs(null, new char[] { ch }); +// return OS.gdk_char_width(_getGCFont(), charBuffer[0]); + return 0; +} + +/** + * Returns the background color. + * + * @return the receiver's background color + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> */ - -public boolean equals(Object object) { - return (object == this) || ((object instanceof GC) && (handle == ((GC)object).handle)); +public Color getBackground() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + GdkGCValues values = new GdkGCValues(); + OS.gdk_gc_get_values(handle, values); + GdkColor color = new GdkColor(); + color.pixel = values.background_pixel; + color.red = values.background_red; + color.green = values.background_green; + color.blue = values.background_blue; + return Color.gtk_new(data.device, color); } + +/** + * Returns the width of the specified character in the font + * selected into the receiver. + * <p> + * The width is defined as the space taken up by the actual + * character, not including the leading and tailing whitespace + * or overhang. + * </p> + * + * @param ch the character to measure + * @return the width of the character + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public int getCharWidth(char ch) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); +// byte[] charBuffer = Converter.wcsToMbcs(null, new char[] { ch }); +// int[] lbearing = new int[1]; +// int[] rbearing = new int[1]; +// int[] unused = new int[1]; +// OS.gdk_string_extents(_getGCFont(), charBuffer, lbearing, rbearing, unused, unused, unused); +// return rbearing[0] - lbearing[0]; + return 0; +} + +/** + * Returns the bounding rectangle of the receiver's clipping + * region. If no clipping region is set, the return value + * will be a rectangle which covers the entire bounds of the + * object the receiver is drawing on. + * + * @return the bounding rectangle of the clipping region + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Rectangle getClipping() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + int clipRgn = data.clipRgn; + if (clipRgn == 0) { + int[] width = new int[1]; int[] height = new int[1]; + OS.gdk_drawable_get_size(data.drawable, width, height); + return new Rectangle(0, 0, width[0], height[0]); + } + GdkRectangle rect = new GdkRectangle(); + OS.gdk_region_get_clipbox(clipRgn, rect); + return new Rectangle(rect.x, rect.y, rect.width, rect.height); +} + +/** + * Sets the region managed by the argument to the current + * clipping region of the receiver. + * + * @param region the region to fill with the clipping region + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the region is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void getClipping(Region region) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (region == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + int hRegion = region.handle; + int clipRgn = data.clipRgn; + OS.gdk_region_subtract(hRegion, hRegion); + if (data.clipRgn == 0) { + int[] width = new int[1]; int[] height = new int[1]; + OS.gdk_drawable_get_size(data.drawable, width, height); + GdkRectangle rect = new GdkRectangle(); + rect.x = 0; rect.y = 0; + rect.width = width[0]; rect.height = height[0]; + OS.gdk_region_union_with_rect(hRegion, rect); + return; + } + OS.gdk_region_union(hRegion, clipRgn); +} +/** + * Returns the font currently being used by the receiver + * to draw and measure text. + * + * @return the receiver's font + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Font getFont() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); +// return Font.gtk_new(_getGCFont()); + return null; +} + +/** + * Returns a FontMetrics which contains information + * about the font currently being used by the receiver + * to draw and measure text. + * + * @return font metrics for the receiver's font + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public FontMetrics getFontMetrics() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); +// int fontHandle = _getGCFont(); +// if (fontHandle==0) { +// SWT.error(SWT.ERROR_UNSPECIFIED); +// } +// return FontMetrics.gtk_new(fontHandle); + return null; +} + +/** + * Returns the receiver's foreground color. + * + * @return the color used for drawing foreground things + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Color getForeground() { + if (handle == 0) SWT.error(SWT.ERROR_WIDGET_DISPOSED); + GdkGCValues values = new GdkGCValues(); + OS.gdk_gc_get_values(handle, values); + GdkColor color = new GdkColor(); + color.pixel = values.foreground_pixel; + color.red = values.foreground_red; + color.green = values.foreground_green; + color.blue = values.foreground_blue; + return Color.gtk_new(data.device, color); +} + +/** + * Returns the receiver's line style, which will be one + * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>, + * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or + * <code>SWT.LINE_DASHDOTDOT</code>. + * + * @return the style used for drawing lines + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public int getLineStyle() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + return data.lineStyle; +} + +/** + * Returns the width that will be used when drawing lines + * for all of the figure drawing operations (that is, + * <code>drawLine</code>, <code>drawRectangle</code>, + * <code>drawPolyline</code>, and so forth. + * + * @return the receiver's line width + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public int getLineWidth() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + GdkGCValues values = new GdkGCValues(); + OS.gdk_gc_get_values(handle, values); + return values.line_width; +} + +/** + * Returns <code>true</code> if this GC is drawing in the mode + * where the resulting color in the destination is the + * <em>exclusive or</em> of the color values in the source + * and the destination, and <code>false</code> if it is + * drawing in the mode where the destination color is being + * replaced with the source color value. + * + * @return <code>true</code> true if the receiver is in XOR mode, and false otherwise + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public boolean getXORMode() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + GdkGCValues values = new GdkGCValues(); + OS.gdk_gc_get_values(handle, values); + return values.function == OS.GDK_XOR; +} + /** * Returns an integer hash code for the receiver. Any two * objects which return <code>true</code> when passed to @@ -1658,9 +1483,46 @@ public boolean equals(Object object) { public int hashCode() { return handle; } -void error(int code) { - throw new SWTError(code); + +void init(Drawable drawable, GCData data, int gdkGC) { + GdkColor foreground = data.foreground; + if (foreground != null) OS.gdk_gc_set_foreground(gdkGC, foreground); + GdkColor background = data.background; + if (background != null) OS.gdk_gc_set_background (gdkGC, background); + Image image = data.image; + if (image != null) { + image.memGC = this; + /* + * The transparent pixel mask might change when drawing on + * the image. Destroy it so that it is regenerated when + * necessary. + */ + if (image.transparentPixel != -1) image.destroyMask(); + } + this.drawable = drawable; + this.data = data; + handle = gdkGC; +} + +/** + * Returns <code>true</code> if the receiver has a clipping + * region set into it, and <code>false</code> otherwise. + * If this method returns false, the receiver will draw on all + * available space in the destination. If it returns true, + * it will draw only in the area that is covered by the region + * that can be accessed with <code>getClipping(region)</code>. + * + * @return <code>true</code> if the GC has a clipping region, and <code>false</code> otherwise + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public boolean isClipped() { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + return data.clipRgn != 0; } + /** * Returns <code>true</code> if the GC has been disposed, * and <code>false</code> otherwise. @@ -1674,45 +1536,294 @@ void error(int code) { public boolean isDisposed() { return handle == 0; } + +/** + * Sets the background color. The background color is used + * for fill operations and as the background color when text + * is drawn. + * + * @param color the new background color for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the color is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setBackground(Color color) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + OS.gdk_gc_set_background(handle, color.handle); +} + /** - * Disposes of the operating system resources associated with - * the graphics context. Applications must dispose of all GCs - * which they allocate. + * Sets the area of the receiver which can be changed + * by drawing operations to the rectangular area specified + * by the arguments. + * + * @param x the x coordinate of the clipping rectangle + * @param y the y coordinate of the clipping rectangle + * @param width the width of the clipping rectangle + * @param height the height of the clipping rectangle + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> */ -public void dispose() { - if (handle == 0) return; - - /* Free resources */ +public void setClipping(int x, int y, int width, int height) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); int clipRgn = data.clipRgn; - if (clipRgn != 0) OS.gdk_region_destroy(clipRgn); - Image image = data.image; - if (image != null) image.memGC = null; + if (clipRgn == 0) { + data.clipRgn = clipRgn = OS.gdk_region_new(); + } else { + OS.gdk_region_subtract(clipRgn, clipRgn); + } + GdkRectangle rect = new GdkRectangle(); + rect.x = x; rect.y = y; + rect.width = width; rect.height = height; + OS.gdk_gc_set_clip_rectangle(handle, rect); + OS.gdk_region_union_with_rect(clipRgn, rect); +} +/** + * Sets the area of the receiver which can be changed + * by drawing operations to the rectangular area specified + * by the argument. + * + * @param rect the clipping rectangle + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setClipping(Rectangle rect) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + int clipRgn = data.clipRgn; + if (rect == null) { + OS.gdk_gc_set_clip_region(handle, 0); + if (clipRgn != 0) { + OS.gdk_region_destroy(clipRgn); + data.clipRgn = clipRgn = 0; + } + return; + } + setClipping (rect.x, rect.y, rect.width, rect.height); +} +/** + * Sets the area of the receiver which can be changed + * by drawing operations to the region specified + * by the argument. + * + * @param rect the clipping region. + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setClipping(Region region) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + int clipRgn = data.clipRgn; + if (region == null) { + OS.gdk_gc_set_clip_region(handle, 0); + if (clipRgn != 0) { + OS.gdk_region_destroy(clipRgn); + data.clipRgn = clipRgn = 0; + } + } else { + if (clipRgn == 0) { + data.clipRgn = clipRgn = OS.gdk_region_new(); + } else { + OS.gdk_region_subtract(clipRgn, clipRgn); + } + OS.gdk_region_union(clipRgn, region.handle); + OS.gdk_gc_set_clip_region(handle, clipRgn); + } +} - /* Dispose the GC */ - if(drawable == null) - OS.gdk_gc_unref(handle); - else - drawable.internal_dispose_GC(handle, data); +/** + * Sets the font which will be used by the receiver + * to draw and measure text to the argument. If the + * argument is null, then a default font appropriate + * for the platform will be used instead. + * + * @param font the new font for the receiver, or null to indicate a default font + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_INVALID_ARGUMENT - if the font has been disposed</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setFont(Font font) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); +/* int fontHandle = 0; + if (font == null) { + GtkStyle gtkStyle = new GtkStyle(); + int style = OS.gtk_widget_get_default_style(); + OS.memmove(gtkStyle, style, GtkStyle.sizeof); + fontHandle = gtkStyle.font; + } else { + fontHandle = font.handle; + } + OS.gdk_gc_set_font(handle, fontHandle);*/ +} - data.drawable = // data.colormap = data.fontList = - data.clipRgn = data.renderTable = 0; - drawable = null; - data.image = null; - data = null; - handle = 0; - +/** + * Sets the foreground color. The foreground color is used + * for drawing operations including when text is drawn. + * + * @param color the new foreground color for the receiver + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the color is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setForeground(Color color) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + OS.gdk_gc_set_foreground(handle, color.handle); } +/** + * Sets the receiver's line style to the argument, which must be one + * of the constants <code>SWT.LINE_SOLID</code>, <code>SWT.LINE_DASH</code>, + * <code>SWT.LINE_DOT</code>, <code>SWT.LINE_DASHDOT</code> or + * <code>SWT.LINE_DASHDOTDOT</code>. + * + * @param lineStyle the style to be used for drawing lines + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setLineStyle(int lineStyle) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + switch (lineStyle) { + case SWT.LINE_SOLID: + this.data.lineStyle = lineStyle; + OS.gdk_gc_set_line_attributes(handle, 0, OS.GDK_LINE_SOLID, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); + return; + case SWT.LINE_DASH: + OS.gdk_gc_set_dashes(handle, 0, new byte[] {6, 2}, 2); + break; + case SWT.LINE_DOT: + OS.gdk_gc_set_dashes(handle, 0, new byte[] {3, 1}, 2); + break; + case SWT.LINE_DASHDOT: + OS.gdk_gc_set_dashes(handle, 0, new byte[] {6, 2, 3, 1}, 4); + break; + case SWT.LINE_DASHDOTDOT: + OS.gdk_gc_set_dashes(handle, 0, new byte[] {6, 2, 3, 1, 3, 1}, 6); + break; + default: + SWT.error(SWT.ERROR_INVALID_ARGUMENT); + } + data.lineStyle = lineStyle; + OS.gdk_gc_set_line_attributes(handle, 0, OS.GDK_LINE_DOUBLE_DASH, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); +} + +/** + * Sets the width that will be used when drawing lines + * for all of the figure drawing operations (that is, + * <code>drawLine</code>, <code>drawRectangle</code>, + * <code>drawPolyline</code>, and so forth. + * + * @param lineWidth the width of a line + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setLineWidth(int width) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (data.lineStyle == SWT.LINE_SOLID) { + OS.gdk_gc_set_line_attributes(handle, width, OS.GDK_LINE_SOLID, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); + } else { + OS.gdk_gc_set_line_attributes(handle, width, OS.GDK_LINE_DOUBLE_DASH, OS.GDK_CAP_BUTT, OS.GDK_JOIN_MITER); + } +} + +/** + * If the argument is <code>true</code>, puts the receiver + * in a drawing mode where the resulting color in the destination + * is the <em>exclusive or</em> of the color values in the source + * and the destination, and if the argument is <code>false</code>, + * puts the receiver in a drawing mode where the destination color + * is replaced with the source color value. + * + * @param xor if <code>true</code>, then <em>xor</em> mode is used, otherwise <em>source copy</em> mode is used + * + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setXORMode(boolean val) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + OS.gdk_gc_set_function(handle, val ? OS.GDK_XOR : OS.GDK_COPY); +} /** - * Returns a string containing a concise, human-readable - * description of the receiver. + * Returns the extent of the given string. No tab + * expansion or carriage return processing will be performed. + * <p> + * The <em>extent</em> of a string is the width and height of + * the rectangular area it would cover if drawn in a particular + * font (in this case, the current font in the receiver). + * </p> * - * @return a string representation of the receiver + * @param string the string to measure + * @return a point containing the extent of the string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> */ -public String toString () { - if (isDisposed()) return "GC {*DISPOSED*}"; - return "GC {" + handle + "}"; +public Point stringExtent(String string) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + byte[] buffer = Converter.wcsToMbcs(null, string, true); + int width = OS.gdk_string_width(_getGCFont(), buffer); + int height = OS.gdk_string_height(_getGCFont(), buffer); + return new Point(width, height); +} + +/** + * Returns the extent of the given string. Tab expansion and + * carriage return processing are performed. + * <p> + * The <em>extent</em> of a string is the width and height of + * the rectangular area it would cover if drawn in a particular + * font (in this case, the current font in the receiver). + * </p> + * + * @param string the string to measure + * @return a point containing the extent of the string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public Point textExtent(String string) { + if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + byte[] buffer = Converter.wcsToMbcs(null, string, true); + int width = OS.gdk_string_width(_getGCFont(), buffer); + int height = OS.gdk_string_height(_getGCFont(), buffer); + return new Point(width, height); } /** @@ -1751,4 +1862,25 @@ public Point textExtent(String string, int flags) { return textExtent(string); } +/** + * Returns a string containing a concise, human-readable + * description of the receiver. + * + * @return a string representation of the receiver + */ +public String toString () { + if (isDisposed()) return "GC {*DISPOSED*}"; + return "GC {" + handle + "}"; +} + +private int _getGCFont() { + GdkGCValues values = new GdkGCValues(); + OS.gdk_gc_get_values(handle, values); + if (values.font==0) { + values.font = OS.gdk_font_load(Converter.wcsToMbcs(null, "fixed", true)); + if (values.font == 0) SWT.error(SWT.ERROR_NO_HANDLES); + } + return values.font; +} + } diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Image.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Image.java index b95ab8104d..a9b1aaf5aa 100644 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Image.java +++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/graphics/Image.java @@ -6,7 +6,6 @@ package org.eclipse.swt.graphics; */ import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.widgets.*; import org.eclipse.swt.*; import java.io.*; @@ -111,12 +110,6 @@ public final class Image implements Drawable{ * Warning: This field is platform dependent. */ static final int DEFAULT_SCANLINE_PAD = 4; - - - -/* - * CONSTRUCTORS - */ Image() { } @@ -132,6 +125,12 @@ Image() { * gc.drawRectangle(0, 0, 50, 50); * gc.dispose(); * </pre> + * <p> + * Note: Some platforms may have a limitation on the size + * of image that can be created (size depends on width, height, + * and depth). For example, Windows 95, 98, and ME do not allow + * images larger than 16M. + * </p> * * @param device the device on which to create the image * @param width the width of the new image @@ -142,9 +141,9 @@ Image() { * </ul> */ public Image(Device display, int width, int height) { - init(display, width, height); - - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); + if (device == null) device = Device.getDevice(); + if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + init(device, width, height); } /** @@ -178,72 +177,122 @@ public Image(Device display, int width, int height) { * </ul> */ public Image(Device device, Image srcImage, int flag) { - /* basic sanity */ if (device == null) device = Device.getDevice(); if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - this.device = device; if (srcImage == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); if (srcImage.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + switch (flag) { + case SWT.IMAGE_COPY: + case SWT.IMAGE_DISABLE: + case SWT.IMAGE_GRAY: + break; + default: + SWT.error(SWT.ERROR_INVALID_ARGUMENT); + } + this.device = device; this.type = srcImage.type; - this.mask = 0; - /* this is somewhat ugly, because this dilutes the encapsulation - * of knowledge about what the cloning operations do (e.g., the - * following lines assume graying and disabling don't change alpha) - */ - this.alphaData = srcImage.alphaData; - this.alpha = srcImage.alpha; - this.transparentPixel = srcImage.transparentPixel; - // FIXME - are we sure about memGC? - - /* Special case: - * If all we want is just a clone of the existing pixmap, it can - * be done entirely in the X server, without copying across the net. - */ - if (flag == SWT.IMAGE_COPY) { - int[] width = new int[1]; int[] height = new int[1]; - OS.gdk_drawable_get_size(srcImage.pixmap, width, height); - int depth = OS.gdk_drawable_get_depth(srcImage.pixmap); - pixmap = OS.gdk_pixmap_new (0, width[0], height[0], depth); - - int gc = OS.gdk_gc_new (pixmap); - OS.gdk_draw_pixmap(pixmap, gc, srcImage.pixmap, - 0,0,0,0, width[0], height[0]); - OS.gdk_gc_destroy(gc); + /* Get source image size */ + int[] w = new int[1], h = new int[1]; + OS.gdk_drawable_get_size(srcImage.pixmap, w, h); + int width = w[0]; + int height = h[0]; + + /* Copy the mask */ + if (srcImage.mask != 0 || srcImage.transparentPixel != -1) { + /* Generate the mask if necessary. */ + if (srcImage.transparentPixel != -1) srcImage.createMask(); + int mask = OS.gdk_pixmap_new(0, width, height, 1); + if (mask == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int gdkGC = OS.gdk_gc_new(mask); + if (gdkGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); + OS.gdk_draw_drawable(mask, gdkGC, srcImage.mask, 0, 0, 0, 0, width, height); + OS.g_object_unref(gdkGC); + this.mask = mask; + /* Destroy the image mask if the there is a GC created on the image */ + if (srcImage.transparentPixel != -1 && srcImage.memGC != null) srcImage.destroyMask(); + } + + /* Copy transparent pixel and alpha data when necessary */ + if (flag != SWT.IMAGE_DISABLE) { transparentPixel = srcImage.transparentPixel; alpha = srcImage.alpha; if (srcImage.alphaData != null) { alphaData = new byte[srcImage.alphaData.length]; System.arraycopy(srcImage.alphaData, 0, alphaData, 0, alphaData.length); } - - /* we are not quite done yet. Need to copy the maskData */ - if (srcImage.mask != 0) { - /* Generate the mask if necessary. */ -// if (srcImage.transparentPixel != -1) srcImage.createMask(); - mask = OS.gdk_pixmap_new(0, width[0], height[0], 1); - gc = OS.gdk_gc_new(mask); - OS.gdk_draw_pixmap(mask, gc, srcImage.mask, - 0,0,0,0, width[0], height[0]); - OS.gdk_gc_destroy(gc); - /* Destroy the image mask if the there is a GC created on the image */ - if (srcImage.transparentPixel != -1 && srcImage.memGC != null) srcImage.destroyMask(); - } + } + /* Create the new pixmap */ + int pixmap = OS.gdk_pixmap_new (OS.GDK_ROOT_PARENT(), width, height, -1); + if (pixmap == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int gdkGC = OS.gdk_gc_new(pixmap); + if (gdkGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); + this.pixmap = pixmap; - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); - + if (flag == SWT.IMAGE_COPY) { + OS.gdk_draw_drawable(pixmap, gdkGC, srcImage.pixmap, 0, 0, 0, 0, width, height); + OS.g_object_unref(gdkGC); return; } - - - - - Pixbuffer pb = new Pixbuffer(srcImage); - Pixbuffer pb2 = new Pixbuffer(pb, flag); - pb2.toImage(this); + /* Retrieve the source pixmap data */ + int pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB(), false, 8, width, height); + if (pixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int colormap = OS.gdk_colormap_get_system(); + OS.gdk_pixbuf_get_from_drawable(pixbuf, srcImage.pixmap, colormap, 0, 0, 0, 0, width, height); + int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); + int pixels = OS.gdk_pixbuf_get_pixels(pixbuf); + + /* Apply transformation */ + switch (flag) { + case SWT.IMAGE_DISABLE: { + byte[] line = new byte[stride]; + for (int y=0; y<height; y++) { + OS.memmove(line, pixels + (y * stride), stride); + for (int x=0; x<width; x++) { + int offset = x*3; + int red = line[offset] & 0xFF; + int green = line[offset+1] & 0xFF; + int blue = line[offset+2] & 0xFF; + int intensity = red * red + green * green + blue * blue; + byte value = (intensity < 9000) ? (byte)0 : (byte) 255; + line[offset] = line[offset+1] = line[offset+2] = value; + } + OS.memmove(pixels + (y * stride), line, stride); + } + break; + } + case SWT.IMAGE_GRAY: { + byte[] line = new byte[stride]; + for (int y=0; y<height; y++) { + OS.memmove(line, pixels + (y * stride), stride); + for (int x=0; x<width; x++) { + int offset = x*3; + int red = line[offset] & 0xFF; + int green = line[offset+1] & 0xFF; + int blue = line[offset+2] & 0xFF; + byte intensity = (byte)((red+red+green+green+green+green+green+blue) >> 3); + line[offset] = line[offset+1] = line[offset+2] = intensity; + } + OS.memmove(pixels + (y * stride), line, stride); + } + transparentPixel = srcImage.transparentPixel; + alpha = srcImage.alpha; + if (srcImage.alphaData != null) { + alphaData = new byte[srcImage.alphaData.length]; + System.arraycopy(srcImage.alphaData, 0, alphaData, 0, alphaData.length); + } + break; + } + } + /* Copy data back to destination pixmap */ + OS.gdk_pixbuf_render_to_drawable(pixbuf, pixmap, gdkGC, 0, 0, 0, 0, width, height, OS.GDK_RGB_DITHER_NORMAL, 0, 0); + + /* Free resources */ + OS.g_object_unref(pixbuf); + OS.g_object_unref(gdkGC); } /** @@ -257,6 +306,12 @@ public Image(Device device, Image srcImage, int flag) { * gc.drawRectangle(0, 0, 50, 50); * gc.dispose(); * </pre> + * <p> + * Note: Some platforms may have a limitation on the size + * of image that can be created (size depends on width, height, + * and depth). For example, Windows 95, 98, and ME do not allow + * images larger than 16M. + * </p> * * @param device the device on which to create the image * @param bounds a rectangle specifying the image's width and height (must not be null) @@ -267,10 +322,10 @@ public Image(Device device, Image srcImage, int flag) { * </ul> */ public Image(Device display, Rectangle bounds) { + if (device == null) device = Device.getDevice(); + if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); if (bounds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - init(display, bounds.width, bounds.height); - - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); + init(device, bounds.width, bounds.height); } /** @@ -284,12 +339,10 @@ public Image(Device display, Rectangle bounds) { * <li>ERROR_NULL_ARGUMENT - if the image data is null</li> * </ul> */ -public Image(Device display, ImageData image) { - if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (display == null) display = Display.getDefault(); - init(display, image); - - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); +public Image(Device device, ImageData data) { + if (device == null) device = Device.getDevice(); + if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + init(device, data); } /** @@ -320,27 +373,14 @@ public Image(Device display, ImageData image) { public Image(Device display, ImageData source, ImageData mask) { if (source == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); if (mask == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (display == null) display = Display.getDefault(); - if (source.width != mask.width || source.height != mask.height) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + if (source.width != mask.width || source.height != mask.height) { + SWT.error(SWT.ERROR_INVALID_ARGUMENT); + } if (mask.depth != 1) SWT.error(SWT.ERROR_INVALID_ARGUMENT); - ImageData image; - if (source.depth != 1) - image = new ImageData(source.width, source.height, source.depth, source.palette, source.scanlinePad, source.data); - else { - image = source.getTransparencyMask(); //create an imagedata with scanlinepad == 1 and invalid data - int[] row = new int[source.width]; - for (int y = 0; y < source.height; y++) { - source.getPixels(0, y, source.width, row, 0); - image.setPixels(0, y, source.width, row, 0); - }//change source data format from scanlinePad == 4 to scanlinePad == 1; - - } - image.type = SWT.ICON; + ImageData image = new ImageData(source.width, source.height, source.depth, source.palette, source.scanlinePad, source.data); image.maskPad = mask.scanlinePad; image.maskData = mask.data; - init(display, image); - - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); + init(device, image); } /** @@ -368,12 +408,10 @@ public Image(Device display, ImageData source, ImageData mask) { * <li>ERROR_IO - if an IO error occurs while reading data</li> * </ul> */ -public Image(Device display, InputStream stream) { - if (stream == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (display == null) display = Display.getDefault(); - init(display, new ImageData(stream)); - - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); +public Image(Device device, InputStream stream) { + if (device == null) device = Device.getDevice(); + if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + init(device, new ImageData(stream)); } /** @@ -395,11 +433,27 @@ public Image(Device display, InputStream stream) { * </ul> */ public Image(Device display, String filename) { - if (filename == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (display == null) display = Display.getDefault(); - init(display, new ImageData(filename)); - - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); + if (device == null) device = Device.getDevice(); + if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + init(device, new ImageData(filename)); +} + +/** + * Create the receiver's mask if necessary. + */ +void createMask() { + if (mask != 0) return; + ImageData maskImage = getImageData().getTransparencyMask(); + byte[] maskData = maskImage.data; + for (int i = 0; i < maskData.length; i++) { + byte s = maskData[i]; + maskData[i] = (byte)(((s & 0x80) >> 7) | ((s & 0x40) >> 5) | + ((s & 0x20) >> 3) | ((s & 0x10) >> 1) | ((s & 0x08) << 1) | + ((s & 0x04) << 3) | ((s & 0x02) << 5) | ((s & 0x01) << 7)); + } + int mask = OS.gdk_bitmap_create_from_data(0, maskData, maskImage.bytesPerLine * 8, maskImage.height); + if (mask == 0) SWT.error(SWT.ERROR_NO_HANDLES); + this.mask = mask; } /** @@ -407,7 +461,7 @@ public Image(Device display, String filename) { */ void destroyMask() { if (mask == 0) return; - OS.gdk_bitmap_unref(mask); + OS.g_object_unref(mask); mask = 0; } @@ -417,11 +471,15 @@ void destroyMask() { * they allocate. */ public void dispose () { - if (pixmap != 0) OS.gdk_pixmap_unref(pixmap); - if (mask != 0) OS.gdk_pixmap_unref(mask); + if (pixmap == 0) return; + if (device.isDisposed()) return; + if (pixmap != 0) OS.g_object_unref(pixmap); + if (mask != 0) OS.g_object_unref(mask); + device = null; pixmap = mask = 0; memGC = null; } + /** * Compares the argument to the receiver, and returns true * if they represent the <em>same</em> object using a class @@ -433,9 +491,12 @@ public void dispose () { * @see #hashCode */ public boolean equals (Object object) { - return (object == this) || ((object instanceof Image) && - (pixmap == ((Image)object).pixmap) && - (mask == ((Image)object).mask)); + if (object == this) return true; + if (!(object instanceof Image)) return false; + Image image = (Image)object; + return device == image.device && pixmap == image.pixmap && + transparentPixel == image.transparentPixel && + mask == image.mask; } /** @@ -457,49 +518,13 @@ public boolean equals (Object object) { * </ul> */ public Color getBackground() { + if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (transparentPixel == -1) return null; + //NOT DONE return null; } /** - * Sets the color to which to map the transparent pixel. - * <p> - * There are certain uses of <code>Images</code> that do not support - * transparency (for example, setting an image into a button or label). - * In these cases, it may be desired to simulate transparency by using - * the background color of the widget to paint the transparent pixels - * of the image. This method specifies the color that will be used in - * these cases. For example: - * <pre> - * Button b = new Button(); - * image.setBackground(b.getBackground());> - * b.setImage(image); - * </pre> - * </p><p> - * The image may be modified by this operation (in effect, the - * transparent regions may be filled with the supplied color). Hence - * this operation is not reversible and it is not legal to call - * this function twice or with a null argument. - * </p><p> - * This method has no effect if the receiver does not have a transparent - * pixel value. - * </p> - * - * @param color the color to use when a transparent pixel is specified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the color is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> - * </ul> - */ -public void setBackground(Color color) { - if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); -} - -/** * Returns the bounds of the receiver. The rectangle will always * have x and y values of 0, and the width and height of the * image. @@ -512,11 +537,12 @@ public void setBackground(Color color) { * </ul> */ public Rectangle getBounds() { + if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); int[] width = new int[1]; int[] height = new int[1]; OS.gdk_drawable_get_size(pixmap, width, height); return new Rectangle(0, 0, width[0], height[0]); - } + /** * Returns an <code>ImageData</code> based on the receiver * Modifications made to this <code>ImageData</code> will not @@ -532,17 +558,83 @@ public Rectangle getBounds() { * @see ImageData */ public ImageData getImageData() { - return new Pixbuffer(this).getImageData(); + if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + + int[] w = new int[1], h = new int[1]; + OS.gdk_drawable_get_size(pixmap, w, h); + int width = w[0], height = h[0]; + int pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB(), false, 8, width, height); + if (pixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int colormap = OS.gdk_colormap_get_system(); + OS.gdk_pixbuf_get_from_drawable(pixbuf, pixmap, colormap, 0, 0, 0, 0, width, height); + int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); + int pixels = OS.gdk_pixbuf_get_pixels(pixbuf); + byte[] srcData = new byte[stride * height]; + OS.memmove(srcData, pixels, srcData.length); + OS.g_object_unref(pixbuf); + + PaletteData palette = new PaletteData(0xFF0000, 0xFF00, 0xFF); + ImageData data = new ImageData(width, height, 24, palette); + data.data = srcData; + data.bytesPerLine = stride; + + if (transparentPixel == -1 && type == SWT.ICON && mask != 0) { + /* Get the icon mask data */ + int gdkImagePtr = OS.gdk_drawable_get_image(mask, 0, 0, width, height); + if (gdkImagePtr == 0) SWT.error(SWT.ERROR_NO_HANDLES); + GdkImage gdkImage = new GdkImage(gdkImagePtr); + byte[] maskData = new byte[gdkImage.bpl * height]; + OS.memmove(maskData, gdkImage.mem, maskData.length); + OS.g_object_unref(gdkImagePtr); + + data.maskPad = 4; + data.maskData = maskData; + /* Bit swap the mask data if necessary */ + if (gdkImage.byte_order == OS.GDK_LSB_FIRST) { + for (int i = 0; i < maskData.length; i++) { + byte b = maskData[i]; + maskData[i] = (byte)(((b & 0x01) << 7) | ((b & 0x02) << 5) | + ((b & 0x04) << 3) | ((b & 0x08) << 1) | ((b & 0x10) >> 1) | + ((b & 0x20) >> 3) | ((b & 0x40) >> 5) | ((b & 0x80) >> 7)); + } + } + } + data.transparentPixel = transparentPixel; + data.alpha = alpha; + if (alpha == -1 && alphaData != null) { + data.alphaData = new byte[alphaData.length]; + System.arraycopy(alphaData, 0, data.alphaData, 0, alphaData.length); + } + return data; } -public static Image gtk_new(int type, int pixmap, int mask) { +/** + * Invokes platform specific functionality to allocate a new image. + * <p> + * <b>IMPORTANT:</b> This method is <em>not</em> part of the public + * API for <code>Image</code>. It is marked public only so that it + * can be shared within the packages provided by SWT. It is not + * available on all platforms, and should never be called from + * application code. + * </p> + * + * @param device the device on which to allocate the color + * @param type the type of the image (<code>SWT.BITMAP</code> or <code>SWT.ICON</code>) + * @param pixmap the OS handle for the image + * @param mask the OS handle for the image mask + * + * @private + */ +public static Image gtk_new(Device device, int type, int pixmap, int mask) { + if (device == null) device = Device.getDevice(); Image image = new Image(); - if (pixmap==0) SWT.error(SWT.ERROR_CANNOT_BE_ZERO); // FIXME remove this, this is for debugging only image.type = type; image.pixmap = pixmap; image.mask = mask; + image.device = device; return image; } + /** * Returns an integer hash code for the receiver. Any two * objects which return <code>true</code> when passed to @@ -556,6 +648,138 @@ public static Image gtk_new(int type, int pixmap, int mask) { public int hashCode () { return pixmap; } + +void init(Device device, int width, int height) { + if (width <= 0 || height <= 0) { + SWT.error (SWT.ERROR_INVALID_ARGUMENT); + } + this.device = device; + this.type = SWT.BITMAP; + + /* Create the pixmap */ + this.pixmap = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), width, height, -1); + if (pixmap == 0) SWT.error(SWT.ERROR_NO_HANDLES); + /* Fill the bitmap with white */ + GdkColor white = new GdkColor(); + white.red = (short)0xFFFF; + white.green = (short)0xFFFF; + white.blue = (short)0xFFFF; + int colormap = OS.gdk_colormap_get_system(); + OS.gdk_colormap_alloc_color(colormap, white, true, true); + int gdkGC = OS.gdk_gc_new(pixmap); + OS.gdk_gc_set_foreground(gdkGC, white); + OS.gdk_draw_rectangle(pixmap, gdkGC, 1, 0, 0, width, height); + OS.g_object_unref(gdkGC); + OS.gdk_colormap_free_colors(colormap, white, 1); +} + +void init(Device device, ImageData image) { + if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + this.device = device; + int width = image.width; + int height = image.height; + PaletteData palette = image.palette; + int pixbuf = OS.gdk_pixbuf_new(OS.GDK_COLORSPACE_RGB(), false, 8, width, height); + if (pixbuf == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int stride = OS.gdk_pixbuf_get_rowstride(pixbuf); + int data = OS.gdk_pixbuf_get_pixels(pixbuf); + if (palette.isDirect) { + int redMask = palette.redMask; + int greenMask = palette.greenMask; + int blueMask = palette.blueMask; + int redShift = palette.redShift; + int greenShift = palette.greenShift; + int blueShift = palette.blueShift; + int[] pixels = new int[width]; + byte[] rgbPixels = new byte[stride]; + for (int y=0; y<height; y++) { + image.getPixels(0, y, width, pixels, 0); + for (int x=0; x<width; x++) { + int pixel = pixels[x]; + int offset = x*3; + int r = pixel & redMask; + r = (redShift < 0) ? r >>> -redShift : r << redShift; + int g = pixel & greenMask; + g = (greenShift < 0) ? g >>> -greenShift : g << greenShift; + int b = pixel & blueMask; + b = (blueShift < 0) ? b >>> -blueShift : b << blueShift; + rgbPixels[offset] = (byte)r; + rgbPixels[offset + 1] = (byte)g; + rgbPixels[offset + 2] = (byte)b; + } + OS.memmove(data + (stride * y), rgbPixels, rgbPixels.length); + } + } else { + RGB[] rgbs = palette.colors; + byte[] pixels = new byte[width]; + byte[] rgbPixels = new byte[stride]; + for (int y=0; y<height; y++) { + image.getPixels(0, y, width, pixels, 0); + for (int x=0; x<width; x++) { + int pixel = pixels[x] & 0xFF; + int r = 0, g = 0, b = 0; + if (pixel < rgbs.length) { + RGB rgb = rgbs[pixel]; + r = rgb.red; g = rgb.green; b = rgb.blue; + } + int offset = x*3; + rgbPixels[offset] = (byte)r; + rgbPixels[offset + 1] = (byte)g; + rgbPixels[offset + 2] = (byte)b; + } + OS.memmove(data + (stride * y), rgbPixels, rgbPixels.length); + } + } + int pixmap = OS.gdk_pixmap_new (OS.GDK_ROOT_PARENT(), width, height, -1); + if (pixmap == 0) SWT.error(SWT.ERROR_NO_HANDLES); + int gdkGC = OS.gdk_gc_new(pixmap); + if (gdkGC == 0) SWT.error(SWT.ERROR_NO_HANDLES); + OS.gdk_pixbuf_render_to_drawable(pixbuf, pixmap, gdkGC, 0, 0, 0, 0, width, height, OS.GDK_RGB_DITHER_NORMAL, 0, 0); + OS.g_object_unref(gdkGC); + OS.g_object_unref(pixbuf); + + if (image.getTransparencyType() == SWT.TRANSPARENCY_MASK || image.transparentPixel != -1) { + if (image.transparentPixel != -1) { + RGB rgb = null; + if (palette.isDirect) { + rgb = palette.getRGB(image.transparentPixel); + } else { + if (image.transparentPixel < palette.colors.length) { + rgb = palette.getRGB(image.transparentPixel); + } + } + if (rgb != null) { + transparentPixel = rgb.red << 16 | rgb.green << 8 | rgb.blue; + } + } + ImageData maskImage = image.getTransparencyMask(); + byte[] maskData = maskImage.data; + for (int i = 0; i < maskData.length; i++) { + byte s = maskData[i]; + maskData[i] = (byte)(((s & 0x80) >> 7) | ((s & 0x40) >> 5) | + ((s & 0x20) >> 3) | ((s & 0x10) >> 1) | ((s & 0x08) << 1) | + ((s & 0x04) << 3) | ((s & 0x02) << 5) | ((s & 0x01) << 7)); + } + int mask = OS.gdk_bitmap_create_from_data(0, maskData, maskImage.bytesPerLine * 8 , height); + if (mask == 0) SWT.error(SWT.ERROR_NO_HANDLES); + this.mask = mask; + if (image.getTransparencyType() == SWT.TRANSPARENCY_MASK) { + this.type = SWT.ICON; + } else { + this.type = SWT.BITMAP; + } + } else { + this.type = SWT.BITMAP; + this.mask = 0; + this.alpha = image.alpha; + if (image.alpha == -1 && image.alphaData != null) { + this.alphaData = new byte[image.alphaData.length]; + System.arraycopy(image.alphaData, 0, this.alphaData, 0, alphaData.length); + } + } + this.pixmap = pixmap; +} + /** * Invokes platform specific functionality to allocate a new GC handle. * <p> @@ -573,16 +797,18 @@ public int hashCode () { */ public int internal_new_GC (GCData data) { if (pixmap == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); - if (data == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); if (type != SWT.BITMAP || memGC != null) { SWT.error(SWT.ERROR_INVALID_ARGUMENT); } - - data.image = this; - int gc = OS.gdk_gc_new(pixmap); - data.drawable = pixmap; - return gc; + int gdkGC = OS.gdk_gc_new(pixmap); + if (data != null) { + data.device = device; + data.drawable = pixmap; + data.image = this; + } + return gdkGC; } + /** * Invokes platform specific functionality to dispose a GC handle. * <p> @@ -598,42 +824,8 @@ public int internal_new_GC (GCData data) { * * @private */ -public void internal_dispose_GC (int gc, GCData data) { - OS.gdk_gc_unref(gc); -} - -void init(Device display, int width, int height) { - device = display; - GdkVisual visual = new GdkVisual (OS.gdk_visual_get_system()); - this.pixmap = OS.gdk_pixmap_new(0, width, height, visual.depth); - if (pixmap == 0) SWT.error(SWT.ERROR_NO_HANDLES); - /* Fill the bitmap with white */ - GdkColor white = new GdkColor(); - int colormap = OS.gdk_colormap_get_system(); - OS.gdk_color_white(colormap, white); - int gc = OS.gdk_gc_new(pixmap); - OS.gdk_gc_set_foreground(gc, white); - OS.gdk_draw_rectangle(pixmap, gc, 1, 0, 0, width, height); - OS.gdk_gc_destroy(gc); - OS.gdk_colors_free(colormap, new int[] { white.pixel }, 1, 0); - this.type = SWT.BITMAP; -} - -void init(Device display, ImageData image) { - if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); - if (display == null) display = Display.getCurrent(); - device = display; - - /* - * We don't really care about the real depth of the ImageData we are - * given. We stretch everything to 24bpp which is the native GdkPixbuffer - * depth. HOWEVER, there is one situation where this is not acceptable, - * namely bitmaps (1bpp), because they may be used in contexts that are - * sensitive to pixmap depth. - */ - Pixbuffer buff = new Pixbuffer(image); - buff.toImage(this); - return; +public void internal_dispose_GC (int gdkGC, GCData data) { + OS.g_object_unref(gdkGC); } /** @@ -651,6 +843,48 @@ public boolean isDisposed() { } /** + * Sets the color to which to map the transparent pixel. + * <p> + * There are certain uses of <code>Images</code> that do not support + * transparency (for example, setting an image into a button or label). + * In these cases, it may be desired to simulate transparency by using + * the background color of the widget to paint the transparent pixels + * of the image. This method specifies the color that will be used in + * these cases. For example: + * <pre> + * Button b = new Button(); + * image.setBackground(b.getBackground());> + * b.setImage(image); + * </pre> + * </p><p> + * The image may be modified by this operation (in effect, the + * transparent regions may be filled with the supplied color). Hence + * this operation is not reversible and it is not legal to call + * this function twice or with a null argument. + * </p><p> + * This method has no effect if the receiver does not have a transparent + * pixel value. + * </p> + * + * @param color the color to use when a transparent pixel is specified + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the color is null</li> + * <li>ERROR_INVALID_ARGUMENT - if the color has been disposed</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li> + * </ul> + */ +public void setBackground(Color color) { + if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED); + if (color == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); + if (color.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT); + if (transparentPixel == -1) return; + //NOT DONE +} + +/** * Returns a string containing a concise, human-readable * description of the receiver. * |