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package org.eclipse.swt.widgets;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved
*/
import org.eclipse.swt.internal.photon.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
public /*final*/ class ToolBar extends Composite {
int itemCount;
ToolItem [] items;
public ToolBar (Composite parent, int style) {
super (parent, checkStyle (style));
/*
* Ensure that either of HORIZONTAL or VERTICAL is set.
* NOTE: HORIZONTAL and VERTICAL have the same values
* as H_SCROLL and V_SCROLL so it is necessary to first
* clear these bits to avoid scroll bars and then reset
* the bits using the original style supplied by the
* programmer.
*/
this.style = checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0);
int [] args = {
OS.Pt_ARG_ORIENTATION, (style & SWT.VERTICAL) == 0 ? OS.Pt_HORIZONTAL : OS.Pt_VERTICAL, 0,
};
OS.PtSetResources(handle, args.length / 3, args);
}
static int checkStyle (int style) {
/*
* Even though it is legal to create this widget
* with scroll bars, they serve no useful purpose
* because they do not automatically scroll the
* widget's client area. The fix is to clear
* the SWT style.
*/
return style & ~(SWT.H_SCROLL | SWT.V_SCROLL);
}
protected void checkSubclass () {
if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
}
public Point computeSize (int wHint, int hHint, boolean changed) {
// if (layout != null) return super.computeSize (wHint, hHint, changed);
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
PhDim_t dim = new PhDim_t();
if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (handle);
OS.PtWidgetPreferredSize(handle, dim);
int width = dim.w, height = dim.h;
if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) {
PhRect_t rect = new PhRect_t ();
PhArea_t area = new PhArea_t ();
rect.lr_x = (short) (wHint - 1);
rect.lr_y = (short) (hHint - 1);
OS.PtSetAreaFromWidgetCanvas (handle, rect, area);
if (wHint != SWT.DEFAULT) width = area.size_w;
if (hHint != SWT.DEFAULT) height = area.size_h;
}
return new Point(width, height);
}
void createHandle (int index) {
state |= HANDLE;
Display display = getDisplay ();
int parentHandle = parent.handle;
int [] args = {
OS.Pt_ARG_FLAGS, hasBorder () ? OS.Pt_HIGHLIGHTED : 0, OS.Pt_HIGHLIGHTED,
OS.Pt_ARG_TOOLBAR_FLAGS, 0, OS.Pt_TOOLBAR_DRAGGABLE | OS.Pt_TOOLBAR_END_SEPARATOR,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (OS.PtToolbar (), parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
}
void createItem (ToolItem item, int index) {
if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE);
if (itemCount == items.length) {
ToolItem [] newItems = new ToolItem [itemCount + 4];
System.arraycopy (items, 0, newItems, 0, items.length);
items = newItems;
}
item.createWidget (index);
System.arraycopy (items, index, items, index + 1, itemCount++ - index);
items [index] = item;
}
void createWidget (int index) {
super.createWidget (index);
items = new ToolItem [4];
itemCount = 0;
}
void destroyItem (ToolItem item) {
int index = 0;
while (index < itemCount) {
if (items [index] == item) break;
index++;
}
if (index == itemCount) return;
System.arraycopy (items, index + 1, items, index, --itemCount - index);
items [itemCount] = null;
}
public int getItemCount () {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
return itemCount;
}
public ToolItem [] getItems () {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
ToolItem [] result = new ToolItem [itemCount];
System.arraycopy (items, 0, result, 0, itemCount);
return result;
}
public ToolItem getItem (int index) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
int count = itemCount;
if (!(0 <= index && index < count)) error (SWT.ERROR_INVALID_RANGE);
return items [index];
}
public ToolItem getItem (Point pt) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
ToolItem [] items = getItems ();
for (int i=0; i<items.length; i++) {
Rectangle rect = items [i].getBounds ();
if (rect.contains (pt)) return items [i];
}
return null;
}
public int getRowCount () {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
return 1;
}
public int indexOf (ToolItem item) {
if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
if (!isValidWidget ()) error (SWT.ERROR_WIDGET_DISPOSED);
if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
int count = itemCount;
for (int i=0; i<count; i++) {
if (items [i] == item) return i;
}
return -1;
}
void releaseWidget () {
for (int i=0; i<items.length; i++) {
ToolItem item = items [i];
if (item != null && !item.isDisposed ()) {
item.releaseWidget ();
item.releaseHandle ();
}
}
items = null;
super.releaseWidget ();
}
}
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