diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/GC.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/GC.java | 2290 |
1 files changed, 0 insertions, 2290 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/GC.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/GC.java deleted file mode 100755 index b90258c880..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/graphics/GC.java +++ /dev/null @@ -1,2290 +0,0 @@ -package org.eclipse.swt.graphics;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.internal.*;
-import org.eclipse.swt.internal.win32.*;
-import org.eclipse.swt.*;
-
-/**
- * Class <code>GC</code> is where all of the drawing capabilities that are
- * supported by SWT are located. Instances are used to draw on either an
- * <code>Image</code>, a <code>Control</code>, or directly on a <code>Display</code>.
- * <p>
- * Application code must explicitly invoke the <code>GC.dispose()</code>
- * method to release the operating system resources managed by each instance
- * when those instances are no longer required. This is <em>particularly</em>
- * important on Windows95 and Windows98 where the operating system has a limited
- * number of device contexts available.
- * </p>
- *
- * @see org.eclipse.swt.events.PaintEvent
- */
-
-public final class GC {
-
- /**
- * the handle to the OS device context
- * (Warning: This field is platform dependent)
- */
- public int handle;
-
- Drawable drawable;
- GCData data;
-
-/**
- * Prevents uninitialized instances from being created outside the package.
- */
-GC() {
-}
-
-/**
- * Constructs a new instance of this class which has been
- * configured to draw on the specified drawable. Sets the
- * foreground and background color in the GC to match those
- * in the drawable.
- * <p>
- * You must dispose the graphics context when it is no longer required.
- * </p>
- * @param drawable the drawable to draw on
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the drawable is null</li>
- * <li>ERROR_INVALID_ARGUMENT
- * - if the drawable is an image that is not a bitmap or an icon
- * - if the drawable is an image or printer that is already selected
- * into another graphics context</li>
- * </ul>
- */
-public GC(Drawable drawable) {
- if (drawable == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- GCData data = new GCData ();
- int hDC = drawable.internal_new_GC (data);
- Device device = data.device;
- if (device == null) device = Device.getDevice();
- if (device == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- data.device = device;
- init (drawable, data, hDC);
- if (device.tracking) device.new_Object(this);
-}
-
-/**
- * Copies a rectangular area of the receiver at the specified
- * position into the image, which must be of type <code>SWT.BITMAP</code>.
- *
- * @param x the x coordinate in the receiver of the area to be copied
- * @param y the y coordinate in the receiver of the area to be copied
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the image is null</li>
- * <li>ERROR_INVALID_ARGUMENT - if the image is not a bitmap or has been disposed</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void copyArea(Image image, int x, int y) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- if (image.type != SWT.BITMAP || image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
-
- /* Get the HDC for the device */
- Device device = data.device;
- int hDC = device.internal_new_GC(null);
-
- /* Copy the bitmap area */
- Rectangle rect = image.getBounds();
- int memHdc = OS.CreateCompatibleDC(hDC);
- int hOldBitmap = OS.SelectObject(memHdc, image.handle);
- OS.BitBlt(memHdc, 0, 0, rect.width, rect.height, handle, x, y, OS.SRCCOPY);
- OS.SelectObject(memHdc, hOldBitmap);
- OS.DeleteDC(memHdc);
-
- /* Release the HDC for the device */
- device.internal_dispose_GC(hDC, null);
-}
-
-/**
- * Copies a rectangular area of the receiver at the source
- * position onto the receiver at the destination position.
- *
- * @param srcX the x coordinate in the receiver of the area to be copied
- * @param srcY the y coordinate in the receiver of the area to be copied
- * @param width the width of the area to copy
- * @param height the height of the area to copy
- * @param destX the x coordinate in the receiver of the area to copy to
- * @param destY the y coordinate in the receiver of the area to copy to
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void copyArea(int srcX, int srcY, int width, int height, int destX, int destY) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
-
- /*
- * Feature in WinCE. The function WindowFromDC is not part of the
- * WinCE SDK. The fix is to remember the HWND.
- */
- int hwnd = data.hwnd;
- if (hwnd == 0) {
- OS.BitBlt(handle, destX, destY, width, height, handle, srcX, srcY, OS.SRCCOPY);
- } else {
- RECT lprcClip = null;
- int hrgn = OS.CreateRectRgn(0, 0, 0, 0);
- if (OS.GetClipRgn(handle, hrgn) == 1) {
- lprcClip = new RECT();
- OS.GetRgnBox(hrgn, lprcClip);
- }
- OS.DeleteObject(hrgn);
- RECT lprcScroll = new RECT();
- OS.SetRect(lprcScroll, srcX, srcY, srcX + width, srcY + height);
- int res = OS.ScrollWindowEx(hwnd, destX - srcX, destY - srcY, lprcScroll, lprcClip, 0, null, OS.SW_INVALIDATE | OS.SW_ERASE);
-
- /*
- * Feature in WinCE. ScrollWindowEx does not accept combined
- * vertical and horizontal scrolling. The fix is to do a
- * BitBlt and invalidate the appropriate source area.
- */
- if (res == 0 && OS.IsWinCE) {
- OS.BitBlt(handle, destX, destY, width, height, handle, srcX, srcY, OS.SRCCOPY);
- int deltaX = destX - srcX, deltaY = destY - srcY;
- boolean disjoint = (destX + width < srcX) || (srcX + width < destX) || (destY + height < srcY) || (srcY + height < destY);
- if (disjoint) {
- OS.InvalidateRect(hwnd, lprcScroll, true);
- } else {
- if (deltaX != 0) {
- int newX = destX - deltaX;
- if (deltaX < 0) newX = destX + width;
- OS.SetRect(lprcScroll, newX, srcY, newX + Math.abs(deltaX), srcY + height);
- OS.InvalidateRect(hwnd, lprcScroll, true);
- }
- if (deltaY != 0) {
- int newY = destY - deltaY;
- if (deltaY < 0) newY = destY + height;
- OS.SetRect(lprcScroll, srcX, newY, srcX + width, newY + Math.abs(deltaY));
- OS.InvalidateRect(hwnd, lprcScroll, true);
- }
- }
- }
- }
-}
-
-int createDIB(int width, int height) {
- int depth = 32;
- byte[] bmi = new byte[40 + (OS.IsWinCE ? 12 : 0)];
-
- /* DWORD biSize = 40 */
- bmi[0] = 40; bmi[1] = 0; bmi[2] = 0; bmi[3] = 0;
- /* LONG biWidth = width */
- bmi[4] = (byte)(width & 0xFF);
- bmi[5] = (byte)((width >> 8) & 0xFF);
- bmi[6] = (byte)((width >> 16) & 0xFF);
- bmi[7] = (byte)((width >> 24) & 0xFF);
- /* LONG biHeight = height */
- bmi[8] = (byte)(-height & 0xFF);
- bmi[9] = (byte)((-height >> 8) & 0xFF);
- bmi[10] = (byte)((-height >> 16) & 0xFF);
- bmi[11] = (byte)((-height >> 24) & 0xFF);
- /* WORD biPlanes = 1 */
- bmi[12] = 1;
- bmi[13] = 0;
- /* WORD biBitCount = depth */
- bmi[14] = (byte)(depth & 0xFF);
- bmi[15] = (byte)((depth >> 8) & 0xFF);
- if (OS.IsWinCE) {
- /* DWORD biCompression = BI_BITFIELDS = 3 */
- bmi[16] = 3; bmi[17] = bmi[18] = bmi[19] = 0;
- } else {
- /* DWORD biCompression = BI_RGB = 0 */
- bmi[16] = bmi[17] = bmi[18] = bmi[19] = 0;
- }
- /* DWORD biSizeImage = 0 (default) */
- bmi[20] = bmi[21] = bmi[22] = bmi[23] = 0;
- /* LONG biXPelsPerMeter = 0 */
- bmi[24] = bmi[25] = bmi[26] = bmi[27] = 0;
- /* LONG biYPelsPerMeter = 0 */
- bmi[28] = bmi[29] = bmi[30] = bmi[31] = 0;
- /* DWORD biClrUsed */
- bmi[32] = bmi[33] = bmi[34] = bmi[35] = 0;
- /* DWORD biClrImportant = 0 */
- bmi[36] = bmi[37] = bmi[38] = bmi[39] = 0;
- /* Set the rgb colors into the bitmap info */
- if (OS.IsWinCE) {
- /* the 32 bit masks are 0xFF000000, 0xFF0000, 0xFF00 */
- bmi[40] = (byte)0xFF; bmi[41] = bmi[42] = bmi[43] = 0;
- bmi[44] = 0; bmi[45] = (byte)0xFF; bmi[46] = bmi[47] = 0;
- bmi[48] = bmi[49] = 0; bmi[50] = (byte)0xFF; bmi[51] = 0;
- }
-
- int[] pBits = new int[1];
- int hDib = OS.CreateDIBSection(0, bmi, OS.DIB_RGB_COLORS, pBits, 0, 0);
- if (hDib == 0) SWT.error(SWT.ERROR_NO_HANDLES);
- return hDib;
-}
-
-/**
- * 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;
-
- /*
- * The only way for pens and brushes to get
- * selected into the HDC is for the receiver to
- * create them. When we are destroying the
- * hDC we also destroy any pens and brushes that
- * we have allocated. This code assumes that it
- * is OK to delete stock objects. This will
- * happen when a GC is disposed and the user has
- * not caused new pens or brushes to be allocated.
- */
- int nullPen = OS.GetStockObject(OS.NULL_PEN);
- int oldPen = OS.SelectObject(handle, nullPen);
- OS.DeleteObject(oldPen);
- int nullBrush = OS.GetStockObject(OS.NULL_BRUSH);
- int oldBrush = OS.SelectObject(handle, nullBrush);
- OS.DeleteObject(oldBrush);
-
- /*
- * Put back the original bitmap into the device context.
- * This will ensure that we have not left a bitmap
- * selected in it when we delete the HDC.
- */
- int hNullBitmap = data.hNullBitmap;
- if (hNullBitmap != 0) {
- OS.SelectObject(handle, hNullBitmap);
- data.hNullBitmap = 0;
- }
- Image image = data.image;
- if (image != null) image.memGC = null;
-
- /*
- * Dispose the HDC.
- */
- Device device = data.device;
- drawable.internal_dispose_GC(handle, data);
- drawable = null;
- handle = 0;
- data.image = null;
- data.ps = null;
- if (device.tracking) device.dispose_Object(this);
- data.device = null;
- data = null;
-}
-
-/**
- * Draws the outline of a circular or elliptical arc
- * within the specified rectangular area.
- * <p>
- * The resulting arc begins at <code>startAngle</code> and extends
- * for <code>arcAngle</code> degrees, using the current color.
- * Angles are interpreted such that 0 degrees is at the 3 o'clock
- * position. A positive value indicates a counter-clockwise rotation
- * while a negative value indicates a clockwise rotation.
- * </p><p>
- * The center of the arc is the center of the rectangle whose origin
- * is (<code>x</code>, <code>y</code>) and whose size is specified by the
- * <code>width</code> and <code>height</code> arguments.
- * </p><p>
- * The resulting arc covers an area <code>width + 1</code> pixels wide
- * by <code>height + 1</code> pixels tall.
- * </p>
- *
- * @param x the x coordinate of the upper-left corner of the arc to be drawn
- * @param y the y coordinate of the upper-left corner of the arc to be drawn
- * @param width the width of the arc to be drawn
- * @param height the height of the arc to be drawn
- * @param startAngle the beginning angle
- * @param arcAngle the angular extent of the arc, relative to the start angle
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if any of the width, height or endAngle is zero.</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </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;
- }
- if (height < 0) {
- y = y + height;
- height = -height;
- }
- if (width == 0 || height == 0 || endAngle == 0) {
- SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- }
- /*
- * Feature in WinCE. The function Arc is not present in the
- * WinCE SDK. The fix is to emulate arc drawing by using
- * Polyline.
- */
- if (OS.IsWinCE) {
- /* compute arc with a simple linear interpolation */
- if (endAngle < 0) {
- startAngle += endAngle;
- endAngle = -endAngle;
- }
- if (endAngle > 360) endAngle = 360;
- int[] points = new int[(endAngle + 1) * 2];
- int cteX = 2 * x + width;
- int cteY = 2 * y + height;
- int index = 0;
- for (int i = 0; i <= endAngle; i++) {
- points[index++] = (Compatibility.cos(startAngle + i, width) + cteX) >> 1;
- points[index++] = (cteY - Compatibility.sin(startAngle + i, height)) >> 1;
- }
- OS.Polyline(handle, points, points.length / 2);
- } else {
- int x1, y1, x2, y2,tmp;
- boolean isNegative;
- if (endAngle >= 360 || endAngle <= -360) {
- x1 = x2 = x + width;
- y1 = y2 = y + height / 2;
- } else {
- isNegative = endAngle < 0;
-
- endAngle = endAngle + startAngle;
- if (isNegative) {
- // swap angles
- tmp = startAngle;
- startAngle = endAngle;
- endAngle = tmp;
- }
- x1 = Compatibility.cos(startAngle, width) + x + width/2;
- y1 = -1 * Compatibility.sin(startAngle, height) + y + height/2;
-
- x2 = Compatibility.cos(endAngle, width) + x + width/2;
- y2 = -1 * Compatibility.sin(endAngle, height) + y + height/2;
- }
- int nullBrush = OS.GetStockObject(OS.NULL_BRUSH);
- int oldBrush = OS.SelectObject(handle, nullBrush);
- OS.Arc(handle, x,y,x+width+1,y+height+1,x1,y1,x2,y2 );
- OS.SelectObject(handle,oldBrush);
- }
-}
-
-/**
- * Draws a rectangle, based on the specified arguments, which has
- * the appearance of the platform's <em>focus rectangle</em> if the
- * platform supports such a notion, and otherwise draws a simple
- * rectangle in the receiver's forground color.
- *
- * @param x the x coordinate of the rectangle
- * @param y the y coordinate of the rectangle
- * @param width the width of the rectangle
- * @param height the height of the rectangle
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #drawRectangle
- */
-public void drawFocus (int x, int y, int width, int height) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- RECT rect = new RECT();
- OS.SetRect(rect, x, y, x + width, y + height);
- OS.DrawFocusRect(handle, rect);
-}
-
-/**
- * Draws the given image in the receiver at the specified
- * coordinates.
- *
- * @param image the image to draw
- * @param x the x coordinate of where to draw
- * @param y the y coordinate of where to draw
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the image is null</li>
- * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
- * <li>ERROR_INVALID_ARGUMENT - if the given coordinates are outside the bounds of the image</li>
- * @exception SWTError <ul>
- * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawImage(Image image, int x, int y) {
- 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);
-}
-
-/**
- * Copies a rectangular area from the source image into a (potentially
- * different sized) rectangular area in the receiver. If the source
- * and destination areas are of differing sizes, then the source
- * area will be stretched or shrunk to fit the destination area
- * as it is copied. The copy fails if any of the given coordinates
- * are negative or lie outside the bounds of their respective images.
- *
- * @param image the source image
- * @param srcX the x coordinate in the source image to copy from
- * @param srcY the y coordinate in the source image to copy from
- * @param srcWidth the width in pixels to copy from the source
- * @param srcHeight the height in pixels to copy from the source
- * @param destX the x coordinate in the destination to copy to
- * @param destY the y coordinate in the destination to copy to
- * @param destWidth the width in pixels of the destination rectangle
- * @param destHeight the height in pixels of the destination rectangle
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the image is null</li>
- * <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
- * <li>ERROR_INVALID_ARGUMENT - if the given coordinates are outside the bounds of their respective images</li>
- * </ul>
- * @exception SWTError <ul>
- * <li>ERROR_NO_HANDLES - if no handles are available to perform the operation</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-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 (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);
-}
-
-void drawImage(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) {
- switch (srcImage.type) {
- case SWT.BITMAP:
- drawBitmap(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple);
- break;
- case SWT.ICON:
- drawIcon(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple);
- break;
- default:
- SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
- }
-}
-
-void drawIcon(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) {
- /* Simple case: no stretching, entire icon */
- if (simple) {
- OS.DrawIconEx(handle, destX, destY, srcImage.handle, 0, 0, 0, 0, OS.DI_NORMAL);
- return;
- }
-
- /* Get the icon info */
- ICONINFO srcIconInfo = new ICONINFO();
- if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED);
- OS.GetIconInfo(srcImage.handle, srcIconInfo);
-
- /* Get the icon width and height */
- int hBitmap = srcIconInfo.hbmColor;
- if (hBitmap == 0) hBitmap = srcIconInfo.hbmMask;
- BITMAP bm = new BITMAP();
- OS.GetObject(hBitmap, BITMAP.sizeof, bm);
- int iconWidth = bm.bmWidth, iconHeight = bm.bmHeight;
- if (hBitmap == srcIconInfo.hbmMask) iconHeight /= 2;
-
- if (simple) {
- srcWidth = destWidth = iconWidth;
- srcHeight = destHeight = iconHeight;
- }
-
- /* Draw the icon */
- boolean failed = srcX + srcWidth > iconWidth || srcY + srcHeight > iconHeight;
- if (!failed) {
- simple = srcX == 0 && srcY == 0 &&
- srcWidth == destWidth && srcHeight == destHeight &&
- srcWidth == iconWidth && srcHeight == iconHeight;
- if (simple) {
- /* Simple case: no stretching, entire icon */
- OS.DrawIconEx(handle, destX, destY, srcImage.handle, 0, 0, 0, 0, OS.DI_NORMAL);
- } else {
- /* Get the HDC for the device */
- Device device = data.device;
- int hDC = device.internal_new_GC(null);
-
- /* Create the icon info and HDC's */
- ICONINFO newIconInfo = new ICONINFO();
- newIconInfo.fIcon = true;
- int srcHdc = OS.CreateCompatibleDC(hDC);
- int dstHdc = OS.CreateCompatibleDC(hDC);
-
- /* Blt the color bitmap */
- int srcColorY = srcY;
- int srcColor = srcIconInfo.hbmColor;
- if (srcColor == 0) {
- srcColor = srcIconInfo.hbmMask;
- srcColorY += iconHeight;
- }
- int oldSrcBitmap = OS.SelectObject(srcHdc, srcColor);
- newIconInfo.hbmColor = OS.CreateCompatibleBitmap(srcHdc, destWidth, destHeight);
- if (newIconInfo.hbmColor == 0) SWT.error(SWT.ERROR_NO_HANDLES);
- int oldDestBitmap = OS.SelectObject(dstHdc, newIconInfo.hbmColor);
- if (!OS.IsWinCE) OS.SetStretchBltMode(dstHdc, OS.COLORONCOLOR);
- OS.StretchBlt(dstHdc, 0, 0, destWidth, destHeight, srcHdc, srcX, srcColorY, srcWidth, srcHeight, OS.SRCCOPY);
-
- /* Blt the mask bitmap */
- OS.SelectObject(srcHdc, srcIconInfo.hbmMask);
- newIconInfo.hbmMask = OS.CreateBitmap(destWidth, destHeight, 1, 1, null);
- if (newIconInfo.hbmMask == 0) SWT.error(SWT.ERROR_NO_HANDLES);
- OS.SelectObject(dstHdc, newIconInfo.hbmMask);
- OS.StretchBlt(dstHdc, 0, 0, destWidth, destHeight, srcHdc, srcX, srcY, srcWidth, srcHeight, OS.SRCCOPY);
-
- /* Select old bitmaps before creating the icon */
- OS.SelectObject(srcHdc, oldSrcBitmap);
- OS.SelectObject(dstHdc, oldDestBitmap);
-
- /* Create the new icon */
- int hIcon = OS.CreateIconIndirect(newIconInfo);
- if (hIcon == 0) SWT.error(SWT.ERROR_NO_HANDLES);
-
- /* Draw the new icon */
- OS.DrawIconEx(handle, destX, destY, hIcon, destWidth, destHeight, 0, 0, OS.DI_NORMAL);
-
- /* Destroy the new icon and hdc's*/
- OS.DestroyIcon(hIcon);
- OS.DeleteObject(newIconInfo.hbmMask);
- OS.DeleteObject(newIconInfo.hbmColor);
- OS.DeleteDC(dstHdc);
- OS.DeleteDC(srcHdc);
-
- /* Release the HDC for the device */
- device.internal_dispose_GC(hDC, null);
- }
- }
-
- /* Free icon info */
- OS.DeleteObject(srcIconInfo.hbmMask);
- if (srcIconInfo.hbmColor != 0) {
- OS.DeleteObject(srcIconInfo.hbmColor);
- }
-
- if (failed) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
-}
-
-void drawBitmap(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple) {
- BITMAP bm = new BITMAP();
- OS.GetObject(srcImage.handle, BITMAP.sizeof, bm);
- int imgWidth = bm.bmWidth;
- int imgHeight = bm.bmHeight;
- if (simple) {
- srcWidth = destWidth = imgWidth;
- srcHeight = destHeight = imgHeight;
- } else {
- if (srcX + srcWidth > imgWidth || srcY + srcHeight > imgHeight) {
- SWT.error (SWT.ERROR_INVALID_ARGUMENT);
- }
- simple = srcX == 0 && srcY == 0 &&
- srcWidth == destWidth && destWidth == imgWidth &&
- srcHeight == destHeight && destHeight == imgHeight;
- }
- boolean mustRestore = false;
- GC memGC = srcImage.memGC;
- if (memGC != null && !memGC.isDisposed()) {
- mustRestore = true;
- GCData data = memGC.data;
- if (data.hNullBitmap != 0) {
- OS.SelectObject(memGC.handle, data.hNullBitmap);
- data.hNullBitmap = 0;
- }
- }
- if (srcImage.alpha != -1 || srcImage.alphaData != null) {
- drawBitmapAlpha(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, bm, imgWidth, imgHeight);
- } else if (srcImage.transparentPixel != -1) {
- drawBitmapTransparent(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, bm, imgWidth, imgHeight);
- } else {
- drawBitmap(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, bm, imgWidth, imgHeight);
- }
- if (mustRestore) {
- int hOldBitmap = OS.SelectObject(memGC.handle, srcImage.handle);
- memGC.data.hNullBitmap = hOldBitmap;
- }
-}
-
-void drawBitmapAlpha(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, BITMAP bm, int imgWidth, int imgHeight) {
- /* Simple cases */
- if (srcImage.alpha == 0) return;
- if (srcImage.alpha == 255) {
- drawBitmap(srcImage, srcX, srcY, srcWidth, srcHeight, destX, destY, destWidth, destHeight, simple, bm, imgWidth, imgHeight);
- return;
- }
-
- /* Check clipping */
- Rectangle rect = getClipping();
- rect = rect.intersection(new Rectangle(destX, destY, destWidth, destHeight));
- if (rect.isEmpty()) return;
-
- /*
- * Optimization. Recalculate src and dest rectangles so that
- * only the clipping area is drawn.
- */
- int sx1 = srcX + (((rect.x - destX) * srcWidth) / destWidth);
- int sx2 = srcX + ((((rect.x + rect.width) - destX) * srcWidth) / destWidth);
- int sy1 = srcY + (((rect.y - destY) * srcHeight) / destHeight);
- int sy2 = srcY + ((((rect.y + rect.height) - destY) * srcHeight) / destHeight);
- destX = rect.x;
- destY = rect.y;
- destWidth = rect.width;
- destHeight = rect.height;
- srcX = sx1;
- srcY = sy1;
- srcWidth = Math.max(1, sx2 - sx1);
- srcHeight = Math.max(1, sy2 - sy1);
-
- /* Create resources */
- int srcHdc = OS.CreateCompatibleDC(handle);
- int oldSrcBitmap = OS.SelectObject(srcHdc, srcImage.handle);
- int memHdc = OS.CreateCompatibleDC(handle);
- int memDib = createDIB(Math.max(srcWidth, destWidth), Math.max(srcHeight, destHeight));
- int oldMemBitmap = OS.SelectObject(memHdc, memDib);
-
- BITMAP dibBM = new BITMAP();
- OS.GetObject(memDib, BITMAP.sizeof, dibBM);
- int sizeInBytes = dibBM.bmWidthBytes * dibBM.bmHeight;
-
- /* Get the background pixels */
- OS.BitBlt(memHdc, 0, 0, destWidth, destHeight, handle, destX, destY, OS.SRCCOPY);
- byte[] destData = new byte[sizeInBytes];
- OS.MoveMemory(destData, dibBM.bmBits, sizeInBytes);
-
- /* Get the foreground pixels */
- OS.BitBlt(memHdc, 0, 0, srcWidth, srcHeight, srcHdc, srcX, srcY, OS.SRCCOPY);
- byte[] srcData = new byte[sizeInBytes];
- OS.MoveMemory(srcData, dibBM.bmBits, sizeInBytes);
-
- /* Merge the alpha channel in place */
- int alpha = srcImage.alpha;
- final boolean hasAlphaChannel = (srcImage.alpha == -1);
- if (hasAlphaChannel) {
- final int apinc = imgWidth - srcWidth;
- final int spinc = dibBM.bmWidthBytes - srcWidth * 4;
- int ap = srcY * imgWidth + srcX, sp = 3;
- byte[] alphaData = srcImage.alphaData;
- for (int y = 0; y < srcHeight; ++y) {
- for (int x = 0; x < srcWidth; ++x) {
- srcData[sp] = alphaData[ap++];
- sp += 4;
- }
- ap += apinc;
- sp += spinc;
- }
- }
-
- /* Scale the foreground pixels with alpha */
- if (!OS.IsWinCE) OS.SetStretchBltMode(memHdc, OS.COLORONCOLOR);
- OS.MoveMemory(dibBM.bmBits, srcData, sizeInBytes);
- OS.StretchBlt(memHdc, 0, 0, destWidth, destHeight, memHdc, 0, 0, srcWidth, srcHeight, OS.SRCCOPY);
- OS.MoveMemory(srcData, dibBM.bmBits, sizeInBytes);
-
- /* Compose the pixels */
- final int dpinc = dibBM.bmWidthBytes - destWidth * 4;
- int dp = 0;
- for (int y = 0; y < destHeight; ++y) {
- for (int x = 0; x < destWidth; ++x) {
- if (hasAlphaChannel) alpha = srcData[dp + 3] & 0xff;
- destData[dp] += ((srcData[dp] & 0xff) - (destData[dp] & 0xff)) * alpha / 255;
- destData[dp + 1] += ((srcData[dp + 1] & 0xff) - (destData[dp + 1] & 0xff)) * alpha / 255;
- destData[dp + 2] += ((srcData[dp + 2] & 0xff) - (destData[dp + 2] & 0xff)) * alpha / 255;
- dp += 4;
- }
- dp += dpinc;
- }
-
- /* Draw the composed pixels */
- OS.MoveMemory(dibBM.bmBits, destData, sizeInBytes);
- OS.BitBlt(handle, destX, destY, destWidth, destHeight, memHdc, 0, 0, OS.SRCCOPY);
-
- /* Free resources */
- OS.SelectObject(memHdc, oldMemBitmap);
- OS.DeleteDC(memHdc);
- OS.DeleteObject(memDib);
- OS.SelectObject(srcHdc, oldSrcBitmap);
- OS.DeleteDC(srcHdc);
-}
-
-void drawBitmapTransparent(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, BITMAP bm, int imgWidth, int imgHeight) {
-
- /* Get the HDC for the device */
- Device device = data.device;
- int hDC = device.internal_new_GC(null);
-
- /* Find the RGB values for the transparent pixel. */
- int transBlue = 0, transGreen = 0, transRed = 0;
- boolean isDib = bm.bmBits != 0;
- int hBitmap = srcImage.handle;
- int srcHdc = OS.CreateCompatibleDC(handle);
- int oldSrcBitmap = OS.SelectObject(srcHdc, hBitmap);
- byte[] originalColors = null;
- if (bm.bmBitsPixel <= 8) {
- if (isDib) {
- /* Palette-based DIBSECTION */
- if (OS.IsWinCE) {
- byte[] pBits = new byte[1];
- OS.MoveMemory(pBits, bm.bmBits, 1);
- byte oldValue = pBits[0];
- int mask = (0xFF << (8 - bm.bmBitsPixel)) & 0x00FF;
- pBits[0] = (byte)((srcImage.transparentPixel << (8 - bm.bmBitsPixel)) | (pBits[0] & ~mask));
- OS.MoveMemory(bm.bmBits, pBits, 1);
- int color = OS.GetPixel(srcHdc, 0, 0);
- pBits[0] = oldValue;
- OS.MoveMemory(bm.bmBits, pBits, 1);
- transBlue = (color & 0xFF0000) >> 16;
- transGreen = (color & 0xFF00) >> 8;
- transRed = color & 0xFF;
- } else {
- int maxColors = 1 << bm.bmBitsPixel;
- byte[] oldColors = new byte[maxColors * 4];
- int numColors = OS.GetDIBColorTable(srcHdc, 0, maxColors, oldColors);
- int offset = srcImage.transparentPixel * 4;
- byte[] newColors = new byte[oldColors.length];
- transRed = transGreen = transBlue = 0xff;
- newColors[offset] = (byte)transBlue;
- newColors[offset+1] = (byte)transGreen;
- newColors[offset+2] = (byte)transRed;
- OS.SetDIBColorTable(srcHdc, 0, maxColors, newColors);
- originalColors = oldColors;
- }
- } else {
- /* Palette-based bitmap */
- int numColors = 1 << bm.bmBitsPixel;
- byte[] bmi = new byte[40 + numColors * 4];
- /* Set the few fields necessary to get the RGB data out */
- bmi[0] = 40;
- bmi[12] = (byte)(bm.bmPlanes & 0xFF);
- bmi[13] = (byte)((bm.bmPlanes >> 8) & 0xFF);
- bmi[14] = (byte)(bm.bmBitsPixel & 0xFF);
- bmi[15] = (byte)((bm.bmBitsPixel >> 8) & 0xFF);
- if (OS.IsWinCE) SWT.error(SWT.ERROR_NOT_IMPLEMENTED);
- OS.GetDIBits(srcHdc, srcImage.handle, 0, 0, 0, bmi, OS.DIB_RGB_COLORS);
- int offset = 40 + 4 * srcImage.transparentPixel;
- transRed = bmi[offset + 2] & 0xFF;
- transGreen = bmi[offset + 1] & 0xFF;
- transBlue = bmi[offset] & 0xFF;
- }
- } else {
- /* Direct color image */
- int pixel = srcImage.transparentPixel;
- switch (bm.bmBitsPixel) {
- case 16:
- transBlue = (pixel & 0x1F) << 3;
- transGreen = (pixel & 0x3E0) >> 2;
- transRed = (pixel & 0x7C00) >> 7;
- break;
- case 24:
- transBlue = (pixel & 0xFF0000) >> 16;
- transGreen = (pixel & 0xFF00) >> 8;
- transRed = pixel & 0xFF;
- break;
- case 32:
- transBlue = (pixel & 0xFF000000) >>> 24;
- transGreen = (pixel & 0xFF0000) >> 16;
- transRed = (pixel & 0xFF00) >> 8;
- break;
- }
- }
-
- /* Create the mask for the source image */
- int maskHdc = OS.CreateCompatibleDC(hDC);
- int maskBitmap = OS.CreateBitmap(imgWidth, imgHeight, 1, 1, null);
- int oldMaskBitmap = OS.SelectObject(maskHdc, maskBitmap);
- OS.SetBkColor(srcHdc, (transBlue << 16) | (transGreen << 8) | transRed);
- OS.BitBlt(maskHdc, 0, 0, imgWidth, imgHeight, srcHdc, 0, 0, OS.SRCCOPY);
- if (originalColors != null) OS.SetDIBColorTable(srcHdc, 0, 1 << bm.bmBitsPixel, originalColors);
-
- /* Draw the source bitmap transparently using invert/and mask/invert */
- int tempHdc = OS.CreateCompatibleDC(hDC);
- int tempBitmap = OS.CreateCompatibleBitmap(hDC, destWidth, destHeight);
- int oldTempBitmap = OS.SelectObject(tempHdc, tempBitmap);
- OS.BitBlt(tempHdc, 0, 0, destWidth, destHeight, handle, destX, destY, OS.SRCCOPY);
- if (!OS.IsWinCE) OS.SetStretchBltMode(tempHdc, OS.COLORONCOLOR);
- OS.StretchBlt(tempHdc, 0, 0, destWidth, destHeight, srcHdc, srcX, srcY, srcWidth, srcHeight, OS.SRCINVERT);
- OS.StretchBlt(tempHdc, 0, 0, destWidth, destHeight, maskHdc, srcX, srcY, srcWidth, srcHeight, OS.SRCAND);
- OS.StretchBlt(tempHdc, 0, 0, destWidth, destHeight, srcHdc, srcX, srcY, srcWidth, srcHeight, OS.SRCINVERT);
- OS.BitBlt(handle, destX, destY, destWidth, destHeight, tempHdc, 0, 0, OS.SRCCOPY);
-
- /* Release resources */
- OS.SelectObject(tempHdc, oldTempBitmap);
- OS.DeleteDC(tempHdc);
- OS.DeleteObject(tempBitmap);
- OS.SelectObject(maskHdc, oldMaskBitmap);
- OS.DeleteDC(maskHdc);
- OS.DeleteObject(maskBitmap);
- OS.SelectObject(srcHdc, oldSrcBitmap);
- if (hBitmap != srcImage.handle) OS.DeleteObject(hBitmap);
- OS.DeleteDC(srcHdc);
-
- /* Release the HDC for the device */
- device.internal_dispose_GC(hDC, null);
-}
-
-void drawBitmap(Image srcImage, int srcX, int srcY, int srcWidth, int srcHeight, int destX, int destY, int destWidth, int destHeight, boolean simple, BITMAP bm, int imgWidth, int imgHeight) {
- int srcHdc = OS.CreateCompatibleDC(handle);
- int oldSrcBitmap = OS.SelectObject(srcHdc, srcImage.handle);
- int mode = 0, rop2 = 0;
- if (!OS.IsWinCE) {
- rop2 = OS.GetROP2(handle);
- mode = OS.SetStretchBltMode(handle, OS.COLORONCOLOR);
- } else {
- rop2 = OS.SetROP2 (handle, OS.R2_COPYPEN);
- OS.SetROP2 (handle, rop2);
- }
- int dwRop = rop2 == OS.R2_XORPEN ? OS.SRCINVERT : OS.SRCCOPY;
- OS.StretchBlt(handle, destX, destY, destWidth, destHeight, srcHdc, srcX, srcY, srcWidth, srcHeight, dwRop);
- if (!OS.IsWinCE) {
- OS.SetStretchBltMode(handle, mode);
- }
- OS.SelectObject(srcHdc, oldSrcBitmap);
- OS.DeleteDC(srcHdc);
-}
-
-/**
- * Draws a line, using the foreground color, between the points
- * (<code>x1</code>, <code>y1</code>) and (<code>x2</code>, <code>y2</code>).
- *
- * @param x1 the first point's x coordinate
- * @param y1 the first point's y coordinate
- * @param x2 the second point's x coordinate
- * @param y2 the second point's y coordinate
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawLine (int x1, int y1, int x2, int y2) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (OS.IsWinCE) {
- int [] points = new int [] {x1, y1, x2, y2};
- OS.Polyline (handle, points, points.length / 2);
- } else {
- OS.MoveToEx (handle, x1, y1, 0);
- OS.LineTo (handle, x2, y2);
- }
- OS.SetPixel (handle, x2, y2, OS.GetTextColor (handle));
-}
-
-/**
- * Draws the outline of an oval, using the foreground color,
- * within the specified rectangular area.
- * <p>
- * The result is a circle or ellipse that fits within the
- * rectangle specified by the <code>x</code>, <code>y</code>,
- * <code>width</code>, and <code>height</code> arguments.
- * </p><p>
- * The oval covers an area that is <code>width + 1</code>
- * pixels wide and <code>height + 1</code> pixels tall.
- * </p>
- *
- * @param x the x coordinate of the upper left corner of the oval to be drawn
- * @param y the y coordinate of the upper left corner of the oval to be drawn
- * @param width the width of the oval to be drawn
- * @param height the height of the oval to be drawn
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawOval (int x, int y, int width, int height) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- // Check performance impact of always setting null brush. If the user has not
- // set the background color, we may not have to do this work?
- int nullBrush = OS.GetStockObject(OS.NULL_BRUSH);
- int oldBrush = OS.SelectObject(handle, nullBrush);
- OS.Ellipse(handle, x,y,x+width+1,y+height+1);
- OS.SelectObject(handle,oldBrush);
-}
-
-/**
- * Draws the closed polygon which is defined by the specified array
- * of integer coordinates, using the receiver's foreground color. The array
- * contains alternating x and y values which are considered to represent
- * points which are the vertices of the polygon. Lines are drawn between
- * each consecutive pair, and between the first pair and last pair in the
- * array.
- *
- * @param pointArray an array of alternating x and y values which are the vertices of the polygon
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT if pointArray is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawPolygon(int[] pointArray) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- int nullBrush = OS.GetStockObject(OS.NULL_BRUSH);
- int oldBrush = OS.SelectObject(handle, nullBrush);
- OS.Polygon(handle, pointArray, pointArray.length / 2);
- OS.SelectObject(handle, oldBrush);
-}
-
-/**
- * Draws the polyline which is defined by the specified array
- * of integer coordinates, using the receiver's foreground color. The array
- * contains alternating x and y values which are considered to represent
- * points which are the corners of the polyline. Lines are drawn between
- * each consecutive pair, but not between the first pair and last pair in
- * the array.
- *
- * @param pointArray an array of alternating x and y values which are the corners of the polyline
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the point array is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawPolyline(int[] pointArray) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (pointArray == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- OS.Polyline(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
- * of the rectangle are at <code>x</code> and <code>x + width</code>.
- * The top and bottom edges are at <code>y</code> and <code>y + height</code>.
- *
- * @param x the x coordinate of the rectangle to be drawn
- * @param y the y coordinate of the rectangle to be drawn
- * @param width the width of the rectangle to be drawn
- * @param height the height of the rectangle to be drawn
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawRectangle (int x, int y, int width, int height) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- int hOld = OS.SelectObject (handle, OS.GetStockObject (OS.NULL_BRUSH));
- OS.Rectangle (handle, x, y, x + width + 1, y + height + 1);
- OS.SelectObject (handle, hOld);
-}
-
-/**
- * Draws the outline of the specified rectangle, using the receiver's
- * foreground color. The left and right edges of the rectangle are at
- * <code>rect.x</code> and <code>rect.x + rect.width</code>. The top
- * and bottom edges are at <code>rect.y</code> and
- * <code>rect.y + rect.height</code>.
- *
- * @param rect the rectangle to draw
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- */
-public void drawRectangle (Rectangle rect) {
- if (rect == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- drawRectangle (rect.x, rect.y, rect.width, rect.height);
-}
-
-/**
- * Draws the outline of the round-cornered rectangle specified by
- * the arguments, using the receiver's foreground color. The left and
- * right edges of the rectangle are at <code>x</code> and <code>x + width</code>.
- * The top and bottom edges are at <code>y</code> and <code>y + height</code>.
- * The <em>roundness</em> of the corners is specified by the
- * <code>arcWidth</code> and <code>arcHeight</code> arguments.
- *
- * @param x the x coordinate of the rectangle to be drawn
- * @param y the y coordinate of the rectangle to be drawn
- * @param width the width of the rectangle to be drawn
- * @param height the height of the rectangle to be drawn
- * @param arcWidth the horizontal diameter of the arc at the four corners
- * @param arcHeight the vertical diameter of the arc at the four corners
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </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);
- if (OS.IsWinCE) {
- /*
- * Bug in WinCE PPC. On certain devices, RoundRect does not draw
- * all the pixels. The workaround is to draw a round rectangle
- * using lines and arcs.
- */
- if (width == 0 || height == 0) return;
- if (arcWidth == 0 || arcHeight == 0) {
- drawRectangle(x, y, width, height);
- return;
- }
- if (width < 0) {
- x += width;
- width = -width;
- }
- if (height < 0) {
- y += height;
- height = -height;
- };
- if (arcWidth < 0) arcWidth = -arcWidth;
- if (arcHeight < 0) arcHeight = -arcHeight;
- if (arcWidth > width) arcWidth = width;
- if (arcHeight > height) arcHeight = height;
-
- if (arcWidth < width) {
- drawLine(x+arcWidth/2, y, x+width-arcWidth/2, y);
- drawLine(x+arcWidth/2, y+height-1, x+width-arcWidth/2, y+height-1);
- }
- if (arcHeight < height) {
- drawLine(x, y+arcHeight/2, x, y+height-arcHeight/2);
- drawLine(x+width-1, y+arcHeight/2, x+width-1, y+height-arcHeight/2);
- }
- if (arcWidth != 0 && arcHeight != 0) {
- drawArc(x, y, arcWidth, arcHeight, 90, 90);
- drawArc(x+width-arcWidth-1, y, arcWidth, arcHeight, 0, 90);
- drawArc(x+width-arcWidth-1, y+height-arcHeight-1, arcWidth, arcHeight, 0, -90);
- drawArc(x, y+height-arcHeight-1, arcWidth, arcHeight, 180, 90);
- }
- } else {
- int nullBrush = OS.GetStockObject(OS.NULL_BRUSH);
- int oldBrush = OS.SelectObject(handle, nullBrush);
- OS.RoundRect(handle, x,y,x+width,y+height, arcWidth, arcHeight);
- OS.SelectObject(handle,oldBrush);
- }
-}
-
-/**
- * Draws the given string, using the receiver's current font and
- * foreground color. No tab expansion or carriage return processing
- * will be performed. The background of the rectangular area where
- * the string is being drawn will be filled with the receiver's
- * background color.
- *
- * @param string the string to be drawn
- * @param x the x coordinate of the top left corner of the rectangular area where the string is to be drawn
- * @param y the y coordinate of the top left corner of the rectangular area where the string is to be drawn
- *
- * @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 void drawString (String string, int x, int y) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
-// TCHAR buffer = new TCHAR (getCodePage(), string, false);
- int length = string.length();
- char[] buffer = new char [length];
- string.getChars(0, length, buffer, 0);
- OS.ExtTextOutW(handle, x, y, 0, null, buffer, length, null);
-}
-
-/**
- * Draws the given string, using the receiver's current font and
- * foreground color. No tab expansion or carriage return processing
- * will be performed. If <code>isTransparent</code> is <code>true</code>,
- * then the background of the rectangular area where the string is being
- * drawn will not be modified, otherwise it will be filled with the
- * receiver's background color.
- *
- * @param string the string to be drawn
- * @param x the x coordinate of the top left corner of the rectangular area where the string is to be drawn
- * @param y the y coordinate of the top left corner of the rectangular area where the string is to be drawn
- * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque
- *
- * @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 void drawString (String string, int x, int y, boolean isTransparent) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
-// TCHAR buffer = new TCHAR (getCodePage(), string, false);
- int length = string.length();
- char[] buffer = new char [length];
- string.getChars(0, length, buffer, 0);
- if (isTransparent) {
- int oldBkMode = OS.SetBkMode(handle, OS.TRANSPARENT);
- OS.ExtTextOutW(handle, x, y, 0, null, buffer, length, null);
- OS.SetBkMode(handle, oldBkMode);
- } else {
- OS.ExtTextOutW(handle, x, y, 0, null, buffer, length, null);
- }
-}
-
-/**
- * Draws the given string, using the receiver's current font and
- * foreground color. Tab expansion and carriage return processing
- * are performed. The background of the rectangular area where
- * the text is being drawn will be filled with the receiver's
- * background color.
- *
- * @param string the string to be drawn
- * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn
- * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn
- *
- * @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 void drawText (String string, int x, int y) {
- drawText(string, x, y, SWT.DRAW_DELIMITER | SWT.DRAW_TAB);
-}
-
-/**
- * Draws the given string, using the receiver's current font and
- * foreground color. Tab expansion and carriage return processing
- * are performed. If <code>isTransparent</code> is <code>true</code>,
- * then the background of the rectangular area where the text is being
- * drawn will not be modified, otherwise it will be filled with the
- * receiver's background color.
- *
- * @param string the string to be drawn
- * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn
- * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn
- * @param isTransparent if <code>true</code> the background will be transparent, otherwise it will be opaque
- *
- * @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 void drawText (String string, int x, int y, boolean isTransparent) {
- int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB;
- if (isTransparent) flags |= SWT.DRAW_TRANSPARENT;
- drawText(string, x, y, flags);
-}
-
-/**
- * Draws the given string, using the receiver's current font and
- * foreground color. Tab expansion, line delimiter and mnemonic
- * processing are performed according to the specified flags. If
- * <code>flags</code> includes <code>DRAW_TRANSPARENT</code>,
- * then the background of the rectangular area where the text is being
- * drawn will not be modified, otherwise it will be filled with the
- * receiver's background color.
- * <p>
- * The parameter <code>flags</code> may be a combination of:
- * <dl>
- * <dt><b>DRAW_DELIMITER</b></dt>
- * <dd>draw multiple lines</dd>
- * <dt><b>DRAW_TAB</b></dt>
- * <dd>expand tabs</dd>
- * <dt><b>DRAW_MNEMONIC</b></dt>
- * <dd>underline the mnemonic character</dd>
- * <dt><b>DRAW_TRANSPARENT</b></dt>
- * <dd>transparent background</dd>
- * </dl>
- * </p>
- *
- * @param string the string to be drawn
- * @param x the x coordinate of the top left corner of the rectangular area where the text is to be drawn
- * @param y the y coordinate of the top left corner of the rectangular area where the text is to be drawn
- * @param flags the flags specifing how to process the text
- *
- * @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 void drawText (String string, int x, int y, int flags) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (string == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
- RECT rect = new RECT();
- OS.SetRect(rect, x, y, 0x7FFF, 0x7FFF);
- TCHAR buffer = new TCHAR(getCodePage(), string, false);
- int uFormat = OS.DT_LEFT;
- if ((flags & SWT.DRAW_DELIMITER) == 0) uFormat |= OS.DT_SINGLELINE;
- if ((flags & SWT.DRAW_TAB) != 0) uFormat |= OS.DT_EXPANDTABS;
- if ((flags & SWT.DRAW_MNEMONIC) == 0) uFormat |= OS.DT_NOPREFIX;
- if ((flags & SWT.DRAW_TRANSPARENT) != 0) {
- int oldBkMode = OS.SetBkMode(handle, OS.TRANSPARENT);
- OS.DrawText(handle, buffer, buffer.length(), rect, uFormat);
- OS.SetBkMode(handle, oldBkMode);
- } else {
- OS.DrawText(handle, buffer, buffer.length(), rect, uFormat);
- }
-}
-
-/**
- * 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) {
- return (object == this) || ((object instanceof GC) && (handle == ((GC)object).handle));
-}
-
-/**
- * Fills the interior of a circular or elliptical arc within
- * the specified rectangular area, with the receiver's background
- * color.
- * <p>
- * The resulting arc begins at <code>startAngle</code> and extends
- * for <code>arcAngle</code> degrees, using the current color.
- * Angles are interpreted such that 0 degrees is at the 3 o'clock
- * position. A positive value indicates a counter-clockwise rotation
- * while a negative value indicates a clockwise rotation.
- * </p><p>
- * The center of the arc is the center of the rectangle whose origin
- * is (<code>x</code>, <code>y</code>) and whose size is specified by the
- * <code>width</code> and <code>height</code> arguments.
- * </p><p>
- * The resulting arc covers an area <code>width + 1</code> pixels wide
- * by <code>height + 1</code> pixels tall.
- * </p>
- *
- * @param x the x coordinate of the upper-left corner of the arc to be filled
- * @param y the y coordinate of the upper-left corner of the arc to be filled
- * @param width the width of the arc to be filled
- * @param height the height of the arc to be filled
- * @param startAngle the beginning angle
- * @param arcAngle the angular extent of the arc, relative to the start angle
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if any of the width, height or endAngle is zero.</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @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;
- }
- if (height < 0) {
- y = y + height;
- height = -height;
- }
-
- if (width == 0 || height == 0 || endAngle == 0) {
- SWT.error (SWT.ERROR_INVALID_ARGUMENT);
- }
-
- /*
- * Feature in WinCE. The function Pie is not present in the
- * WinCE SDK. The fix is to emulate it by using Polygon.
- */
- if (OS.IsWinCE) {
- /* compute arc with a simple linear interpolation */
- if (endAngle < 0) {
- startAngle += endAngle;
- endAngle = -endAngle;
- }
- boolean drawSegments = true;
- if (endAngle >= 360) {
- endAngle = 360;
- drawSegments = false;
- }
- int[] points = new int[(endAngle + 1) * 2 + (drawSegments ? 4 : 0)];
- int cteX = 2 * x + width;
- int cteY = 2 * y + height;
- int index = (drawSegments ? 2 : 0);
- for (int i = 0; i <= endAngle; i++) {
- points[index++] = (Compatibility.cos(startAngle + i, width) + cteX) >> 1;
- points[index++] = (cteY - Compatibility.sin(startAngle + i, height)) >> 1;
- }
- if (drawSegments) {
- points[0] = points[points.length - 2] = cteX >> 1;
- points[1] = points[points.length - 1] = cteY >> 1;
- }
- int nullPen = OS.GetStockObject(OS.NULL_PEN);
- int oldPen = OS.SelectObject(handle, nullPen);
- OS.Polygon(handle, points, points.length / 2);
- OS.SelectObject(handle, oldPen);
- } else {
- int x1, y1, x2, y2,tmp;
- boolean isNegative;
- if (endAngle >= 360 || endAngle <= -360) {
- x1 = x2 = x + width;
- y1 = y2 = y + height / 2;
- } else {
- isNegative = endAngle < 0;
-
- endAngle = endAngle + startAngle;
- if (isNegative) {
- // swap angles
- tmp = startAngle;
- startAngle = endAngle;
- endAngle = tmp;
- }
- x1 = Compatibility.cos(startAngle, width) + x + width/2;
- y1 = -1 * Compatibility.sin(startAngle, height) + y + height/2;
-
- x2 = Compatibility.cos(endAngle, width) + x + width/2;
- y2 = -1 * Compatibility.sin(endAngle, height) + y + height/2;
- }
-
- int nullPen = OS.GetStockObject(OS.NULL_PEN);
- int oldPen = OS.SelectObject(handle, nullPen);
- OS.Pie(handle, x,y,x+width+1,y+height+1,x1,y1,x2,y2 );
- OS.SelectObject(handle,oldPen);
- }
-}
-
-/**
- * Fills the interior of the specified rectangle with a gradient
- * sweeping from left to right or top to bottom progressing
- * from the receiver's foreground color to its background color.
- *
- * @param x the x coordinate of the rectangle to be filled
- * @param y the y coordinate of the rectangle to be filled
- * @param width the width of the rectangle to be filled, may be negative
- * (inverts direction of gradient if horizontal)
- * @param height the height of the rectangle to be filled, may be negative
- * (inverts direction of gradient if vertical)
- * @param vertical if true sweeps from top to bottom, else
- * sweeps from left to right
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #drawRectangle
- */
-public void fillGradientRectangle(int x, int y, int width, int height, boolean vertical) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (width == 0 || height == 0) return;
- int fromColor = OS.GetTextColor(handle);
- if (fromColor == OS.CLR_INVALID) {
- fromColor = OS.GetSysColor(OS.COLOR_WINDOWTEXT);
- }
- int toColor = OS.GetBkColor(handle);
- if (toColor == OS.CLR_INVALID) {
- toColor = OS.GetSysColor(OS.COLOR_WINDOW);
- }
- boolean swapColors = false;
- if (width < 0) {
- x += width; width = -width;
- if (! vertical) swapColors = true;
- }
- if (height < 0) {
- y += height; height = -height;
- if (vertical) swapColors = true;
- }
- if (swapColors) {
- final int t = fromColor;
- fromColor = toColor;
- toColor = t;
- }
- final RGB fromRGB = new RGB(fromColor & 0xff, (fromColor >>> 8) & 0xff, (fromColor >>> 16) & 0xff);
- final RGB toRGB = new RGB(toColor & 0xff, (toColor >>> 8) & 0xff, (toColor >>> 16) & 0xff);
- if ((fromRGB.red == toRGB.red) && (fromRGB.green == toRGB.green) && (fromRGB.blue == toRGB.blue)) {
- OS.PatBlt(handle, x, y, width, height, OS.PATCOPY);
- return;
- }
-
- /* Use GradientFill if supported, only on Windows 98, 2000 and newer */
- if (!OS.IsWinCE) {
- final int hHeap = OS.GetProcessHeap();
- final int pMesh = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY,
- GRADIENT_RECT.sizeof + TRIVERTEX.sizeof * 2);
- final int pVertex = pMesh + GRADIENT_RECT.sizeof;
-
- GRADIENT_RECT gradientRect = new GRADIENT_RECT();
- gradientRect.UpperLeft = 0;
- gradientRect.LowerRight = 1;
- OS.MoveMemory(pMesh, gradientRect, gradientRect.sizeof);
-
- TRIVERTEX trivertex = new TRIVERTEX();
- trivertex.x = x;
- trivertex.y = y;
- trivertex.Red = (short)((fromRGB.red << 8) | fromRGB.red);
- trivertex.Green = (short)((fromRGB.green << 8) | fromRGB.green);
- trivertex.Blue = (short)((fromRGB.blue << 8) | fromRGB.blue);
- trivertex.Alpha = -1;
- OS.MoveMemory(pVertex, trivertex, TRIVERTEX.sizeof);
-
- trivertex.x = x + width;
- trivertex.y = y + height;
- trivertex.Red = (short)((toRGB.red << 8) | toRGB.red);
- trivertex.Green = (short)((toRGB.green << 8) | toRGB.green);
- trivertex.Blue = (short)((toRGB.blue << 8) | toRGB.blue);
- trivertex.Alpha = -1;
- OS.MoveMemory(pVertex + TRIVERTEX.sizeof, trivertex, TRIVERTEX.sizeof);
-
- boolean success = OS.GradientFill(handle, pVertex, 2, pMesh, 1,
- vertical ? OS.GRADIENT_FILL_RECT_V : OS.GRADIENT_FILL_RECT_H);
- OS.HeapFree(hHeap, 0, pMesh);
- if (success) return;
- }
-
- final int depth = OS.GetDeviceCaps(handle, OS.BITSPIXEL);
- final int bitResolution = (depth >= 24) ? 8 : (depth >= 15) ? 5 : 0;
- ImageData.fillGradientRectangle(this, data.device,
- x, y, width, height, vertical, fromRGB, toRGB,
- bitResolution, bitResolution, bitResolution);
-}
-
-/**
- * Fills the interior of an oval, within the specified
- * rectangular area, with the receiver's background
- * color.
- *
- * @param x the x coordinate of the upper left corner of the oval to be filled
- * @param y the y coordinate of the upper left corner of the oval to be filled
- * @param width the width of the oval to be filled
- * @param height the height of the oval to be filled
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #drawOval
- */
-public void fillOval (int x, int y, int width, int height) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
-
- /* Assumes that user sets the background color. */
- int nullPen = OS.GetStockObject(OS.NULL_PEN);
- int oldPen = OS.SelectObject(handle, nullPen);
- OS.Ellipse(handle, x,y,x+width+1,y+height+1);
- OS.SelectObject(handle,oldPen);
-}
-
-/**
- * Fills the interior of the closed polygon which is defined by the
- * specified array of integer coordinates, using the receiver's
- * background color. The array contains alternating x and y values
- * which are considered to represent points which are the vertices of
- * the polygon. Lines are drawn between each consecutive pair, and
- * between the first pair and last pair in the array.
- *
- * @param pointArray an array of alternating x and y values which are the vertices of the polygon
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT if pointArray is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #drawPolygon
- */
-public void fillPolygon(int[] pointArray) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- int nullPen = OS.GetStockObject(OS.NULL_PEN);
- int oldPen = OS.SelectObject(handle, nullPen);
- OS.Polygon(handle, pointArray, pointArray.length / 2);
- OS.SelectObject(handle,oldPen);
-}
-
-/**
- * Fills the interior of the rectangle specified by the arguments,
- * using the receiver's background color.
- *
- * @param x the x coordinate of the rectangle to be filled
- * @param y the y coordinate of the rectangle to be filled
- * @param width the width of the rectangle to be filled
- * @param height the height of the rectangle to be filled
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #drawRectangle
- */
-public void fillRectangle (int x, int y, int width, int height) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- int rop2 = 0;
- if (OS.IsWinCE) {
- rop2 = OS.SetROP2(handle, OS.R2_COPYPEN);
- OS.SetROP2(handle, rop2);
- } else {
- rop2 = OS.GetROP2(handle);
- }
- int dwRop = rop2 == OS.R2_XORPEN ? OS.PATINVERT : OS.PATCOPY;
- OS.PatBlt(handle, x, y, width, height, dwRop);
-}
-
-/**
- * Fills the interior of the specified rectangle, using the receiver's
- * background color.
- *
- * @param rectangle the rectangle to be filled
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the rectangle is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #drawRectangle
- */
-public void fillRectangle (Rectangle rect) {
- 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.
- *
- * @param x the x coordinate of the rectangle to be filled
- * @param y the y coordinate of the rectangle to be filled
- * @param width the width of the rectangle to be filled
- * @param height the height of the rectangle to be filled
- * @param arcWidth the horizontal diameter of the arc at the four corners
- * @param arcHeight the vertical diameter of the arc at the four corners
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @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 nullPen = OS.GetStockObject(OS.NULL_PEN);
- int oldPen = OS.SelectObject(handle, nullPen);
- OS.RoundRect(handle, x,y,x+width,y+height,arcWidth, arcHeight);
- OS.SelectObject(handle,oldPen);
-}
-
-/**
- * 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>
- */
-public int getAdvanceWidth(char ch) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (OS.IsWinCE) {
- SIZE size = new SIZE();
- OS.GetTextExtentPoint32W(handle, new char[]{ch}, 1, size);
- return size.cx;
- }
- int tch = ch;
- if (ch > 0x7F) {
- TCHAR buffer = new TCHAR(getCodePage(), ch, false);
- tch = buffer.tcharAt(0);
- }
- int[] width = new int[1];
- OS.GetCharWidth(handle, tch, tch, width);
- return width[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 Color getBackground() {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- int color = OS.GetBkColor(handle);
- if (color == OS.CLR_INVALID) {
- color = OS.GetSysColor(OS.COLOR_WINDOW);
- }
- return Color.win32_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);
-
- /* GetCharABCWidths only succeeds on truetype fonts */
- if (!OS.IsWinCE) {
- int tch = ch;
- if (ch > 0x7F) {
- TCHAR buffer = new TCHAR(getCodePage(), ch, false);
- tch = buffer.tcharAt (0);
- }
- int[] width = new int[3];
- if (OS.GetCharABCWidths(handle, tch, tch, width)) {
- return width[1];
- }
- }
-
- /* It wasn't a truetype font */
- TEXTMETRIC tm = new TEXTMETRIC();
- OS.GetTextMetricsW(handle, tm);
- SIZE size = new SIZE();
- OS.GetTextExtentPoint32W(handle, new char[]{ch}, 1, size);
- return size.cx - tm.tmOverhang;
-}
-
-/**
- * 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);
- RECT rect = new RECT();
- OS.GetClipBox(handle, rect);
- return new Rectangle(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
-}
-
-/**
- * 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 result = OS.GetClipRgn (handle, region.handle);
- if (result == 1) return;
- RECT rect = new RECT();
- OS.GetClipBox(handle, rect);
- OS.SetRectRgn(region.handle, rect.left, rect.top, rect.right, rect.bottom);
-}
-
-int getCodePage () {
- if (OS.IsWinCE) return OS.GetACP();
- int[] lpCs = new int[8];
- int cs = OS.GetTextCharset(handle);
- OS.TranslateCharsetInfo(cs, lpCs, OS.TCI_SRCCHARSET);
- return lpCs[1];
-}
-
-/**
- * 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);
- int hFont = OS.GetCurrentObject(handle, OS.OBJ_FONT);
- return Font.win32_new(data.device, hFont);
-}
-
-/**
- * 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);
- TEXTMETRIC lptm = new TEXTMETRIC();
- OS.GetTextMetrics(handle, lptm);
- return FontMetrics.win32_new(lptm);
-}
-
-/**
- * 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_GRAPHIC_DISPOSED);
- int color = OS.GetTextColor(handle);
- if (color == OS.CLR_INVALID) {
- color = OS.GetSysColor(OS.COLOR_WINDOWTEXT);
- }
- return Color.win32_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);
- int hPen = OS.GetCurrentObject(handle, OS.OBJ_PEN);
- LOGPEN logPen = new LOGPEN();
- OS.GetObject(hPen, LOGPEN.sizeof, logPen);
- switch (logPen.lopnStyle) {
- case OS.PS_SOLID: return SWT.LINE_SOLID;
- case OS.PS_DASH: return SWT.LINE_DASH;
- case OS.PS_DOT: return SWT.LINE_DOT;
- case OS.PS_DASHDOT: return SWT.LINE_DASHDOT;
- case OS.PS_DASHDOTDOT: return SWT.LINE_DASHDOTDOT;
- default: return SWT.LINE_SOLID;
- }
-}
-
-/**
- * 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);
- int hPen = OS.GetCurrentObject(handle, OS.OBJ_PEN);
- LOGPEN logPen = new LOGPEN();
- OS.GetObject(hPen, LOGPEN.sizeof, logPen);
- return logPen.x;
-}
-
-/**
- * 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);
- int rop2 = 0;
- if (OS.IsWinCE) {
- rop2 = OS.SetROP2 (handle, OS.R2_COPYPEN);
- OS.SetROP2 (handle, rop2);
- } else {
- rop2 = OS.GetROP2(handle);
- }
- return rop2 == OS.R2_XORPEN;
-}
-
-void init(Drawable drawable, GCData data, int hDC) {
- int foreground = data.foreground;
- if (foreground != -1 && OS.GetTextColor(hDC) != foreground) {
- OS.SetTextColor(hDC, foreground);
- int hPen = OS.CreatePen(OS.PS_SOLID, 0, foreground);
- OS.SelectObject(hDC, hPen);
- }
- int background = data.background;
- if (background != -1 && OS.GetBkColor(hDC) != background) {
- OS.SetBkColor(hDC, background);
- int hBrush = OS.CreateSolidBrush(background);
- OS.SelectObject(hDC, hBrush);
- }
- int hFont = data.hFont;
- if (hFont != 0) OS.SelectObject (hDC, hFont);
- int hPalette = data.device.hPalette;
- if (hPalette != 0) {
- OS.SelectPalette(hDC, hPalette, true);
- OS.RealizePalette(hDC);
- }
- Image image = data.image;
- if (image != null) {
- data.hNullBitmap = OS.SelectObject(hDC, image.handle);
- image.memGC = this;
- }
- this.drawable = drawable;
- this.data = data;
- handle = hDC;
-}
-
-/**
- * Returns an integer hash code for the receiver. Any two
- * objects which return <code>true</code> when passed to
- * <code>equals</code> must return the same value for this
- * method.
- *
- * @return the receiver's hash
- *
- * @exception SWTException <ul>
- * <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
- * </ul>
- *
- * @see #equals
- */
-public int hashCode () {
- return handle;
-}
-
-/**
- * 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);
- int region = OS.CreateRectRgn(0, 0, 0, 0);
- int result = OS.GetClipRgn(handle, region);
- OS.DeleteObject(region);
- return (result > 0);
-}
-
-/**
- * Returns <code>true</code> if the GC has been disposed,
- * and <code>false</code> otherwise.
- * <p>
- * This method gets the dispose state for the GC.
- * When a GC has been disposed, it is an error to
- * invoke any other method using the GC.
- *
- * @return <code>true</code> when the GC is disposed and <code>false</code> otherwise
- */
-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);
- if (OS.GetBkColor(handle) == color.handle) return;
- OS.SetBkColor (handle, color.handle);
- int newBrush = OS.CreateSolidBrush (color.handle);
- int oldBrush = OS.SelectObject (handle, newBrush);
- OS.DeleteObject (oldBrush);
-}
-
-/**
- * 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 (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- int hRgn = OS.CreateRectRgn (x, y, x + width, y + height);
- OS.SelectClipRgn (handle, hRgn);
- OS.DeleteObject (hRgn);
-}
-
-/**
- * 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);
- if (rect == null) {
- OS.SelectClipRgn (handle, 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 hRegion = 0;
- if (region != null) hRegion = region.handle;
- OS.SelectClipRgn (handle, hRegion);
-}
-
-/**
- * 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);
- if (font == null) {
- OS.SelectObject(handle, data.device.systemFont);
- } else {
- if (font.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- OS.SelectObject(handle, font.handle);
- }
-}
-
-/**
- * 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);
- if (OS.GetTextColor(handle) == color.handle) return;
- int hPen = OS.GetCurrentObject(handle, OS.OBJ_PEN);
- LOGPEN logPen = new LOGPEN();
- OS.GetObject(hPen, LOGPEN.sizeof, logPen);
- OS.SetTextColor (handle, color.handle);
- int newPen = OS.CreatePen (logPen.lopnStyle, logPen.x, color.handle);
- int oldPen = OS.SelectObject (handle, newPen);
- OS.DeleteObject (oldPen);
-}
-
-/**
- * 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);
- int style = -1;
- switch (lineStyle) {
- case SWT.LINE_SOLID: style = OS.PS_SOLID; break;
- case SWT.LINE_DASH: style = OS.PS_DASH; break;
- case SWT.LINE_DOT: style = OS.PS_DOT; break;
- case SWT.LINE_DASHDOT: style = OS.PS_DASHDOT; break;
- case SWT.LINE_DASHDOTDOT: style = OS.PS_DASHDOTDOT; break;
- default:
- SWT.error(SWT.ERROR_INVALID_ARGUMENT);
- }
- int hPen = OS.GetCurrentObject(handle, OS.OBJ_PEN);
- LOGPEN logPen = new LOGPEN();
- OS.GetObject(hPen, LOGPEN.sizeof, logPen);
- if (logPen.lopnStyle == style) return;
- int newPen = OS.CreatePen(style, logPen.x, logPen.lopnColor);
- int oldPen = OS.SelectObject(handle, newPen);
- OS.DeleteObject(oldPen);
-}
-
-/**
- * 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 lineWidth) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- int hPen = OS.GetCurrentObject(handle, OS.OBJ_PEN);
- LOGPEN logPen = new LOGPEN();
- OS.GetObject(hPen, LOGPEN.sizeof, logPen);
- if (logPen.x == lineWidth) return;
- int newPen = OS.CreatePen(logPen.lopnStyle, lineWidth, logPen.lopnColor);
- int oldPen = OS.SelectObject(handle, newPen);
- OS.DeleteObject(oldPen);
-}
-
-/**
- * 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 xor) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (xor) {
- OS.SetROP2(handle, OS.R2_XORPEN);
- } else {
- OS.SetROP2(handle, OS.R2_COPYPEN);
- }
-}
-
-/**
- * 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 (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
- SIZE size = new SIZE();
- int length = string.length();
- if (length == 0) {
-// OS.GetTextExtentPoint32(handle, SPACE, SPACE.length(), size);
- OS.GetTextExtentPoint32W(handle, new char[]{' '}, 1, size);
- return new Point(0, size.cy);
- } else {
-// TCHAR buffer = new TCHAR (getCodePage(), string, false);
- char[] buffer = new char [length];
- string.getChars(0, length, buffer, 0);
- OS.GetTextExtentPoint32W(handle, buffer, length, size);
- return new Point(size.cx, size.cy);
- }
-}
-
-/**
- * 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) {
- return textExtent(string, SWT.DRAW_DELIMITER | SWT.DRAW_TAB);
-}
-
-/**
- * Returns the extent of the given string. Tab expansion, line
- * delimiter and mnemonic processing are performed according to
- * the specified flags, which can be a combination of:
- * <dl>
- * <dt><b>DRAW_DELIMITER</b></dt>
- * <dd>draw multiple lines</dd>
- * <dt><b>DRAW_TAB</b></dt>
- * <dd>expand tabs</dd>
- * <dt><b>DRAW_MNEMONIC</b></dt>
- * <dd>underline the mnemonic character</dd>
- * <dt><b>DRAW_TRANSPARENT</b></dt>
- * <dd>transparent background</dd>
- * </dl>
- * <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
- * @param flags the flags specifing how to process the text
- * @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, int flags) {
- if (handle == 0) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
- if (string == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
- if (string.length () == 0) {
- SIZE size = new SIZE();
-// OS.GetTextExtentPoint32(handle, SPACE, SPACE.length(), size);
- OS.GetTextExtentPoint32W(handle, new char [] {' '}, 1, size);
- return new Point(0, size.cy);
- }
- RECT rect = new RECT();
- TCHAR buffer = new TCHAR(getCodePage(), string, false);
- int uFormat = OS.DT_LEFT | OS.DT_CALCRECT;
- if ((flags & SWT.DRAW_DELIMITER) == 0) uFormat |= OS.DT_SINGLELINE;
- if ((flags & SWT.DRAW_TAB) != 0) uFormat |= OS.DT_EXPANDTABS;
- if ((flags & SWT.DRAW_MNEMONIC) == 0) uFormat |= OS.DT_NOPREFIX;
- OS.DrawText(handle, buffer, buffer.length(), rect, uFormat);
- return new Point(rect.right, rect.bottom);
-}
-
-/**
- * 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 + "}";
-}
-
-/**
- * Invokes platform specific functionality to allocate a new graphics context.
- * <p>
- * <b>IMPORTANT:</b> This method is <em>not</em> part of the public
- * API for <code>GC</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 drawable the Drawable for the receiver.
- * @param data the data for the receiver.
- *
- * @return a new <code>GC</code>
- *
- * @private
- */
-public static GC win32_new(Drawable drawable, GCData data) {
- GC gc = new GC();
- int hDC = drawable.internal_new_GC(data);
- gc.init(drawable, data, hDC);
- return gc;
-}
-
-}
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