/**
* Returns the receiver's image data. This is the icon that is associated with the receiver in the
* operating system.
*
* @return the image data for the program, may be null
*/
public ImageData getImageData() {
NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
try {
NSWorkspace workspace = NSWorkspace.sharedWorkspace();
NSString fullPath;
if (this.fullPath != null) {
fullPath = NSString.stringWith(this.fullPath);
} else {
fullPath = workspace.fullPathForApplication(NSString.stringWith(name));
}
if (fullPath != null) {
NSImage nsImage = workspace.iconForFile(fullPath);
if (nsImage != null) {
NSSize size = new NSSize();
size.width = size.height = 16;
nsImage.setSize(size);
nsImage.retain();
Image image = Image.cocoa_new(Display.getCurrent(), SWT.BITMAP, nsImage);
ImageData imageData = image.getImageData();
image.dispose();
return imageData;
}
}
return null;
} finally {
pool.release();
}
}
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final StyledText styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER);
styledText.setText(text);
FontData data = display.getSystemFont().getFontData()[0];
Font font = new Font(display, data.getName(), 16, SWT.BOLD);
styledText.setFont(font);
styledText.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
styledText.addListener(
SWT.Resize,
new Listener() {
public void handleEvent(Event event) {
Rectangle rect = styledText.getClientArea();
Image newImage = new Image(display, 1, Math.max(1, rect.height));
GC gc = new GC(newImage);
gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
gc.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));
gc.fillGradientRectangle(rect.x, rect.y, 1, rect.height, true);
gc.dispose();
styledText.setBackgroundImage(newImage);
if (oldImage != null) oldImage.dispose();
oldImage = newImage;
}
});
shell.setSize(700, 400);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
if (oldImage != null) oldImage.dispose();
font.dispose();
display.dispose();
}
/** Frees the resources */
void freeResources() {
if (images != null) {
for (Image image : images) {
if (image != null) image.dispose();
}
images = null;
}
}
void releaseWidget() {
super.releaseWidget();
releaseImages();
control = null;
toolTipText = null;
disabledImage = hotImage = null;
if (disabledImage2 != null) disabledImage2.dispose();
disabledImage2 = null;
}
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new GridLayout(2, false));
final Text text = new Text(shell, SWT.SEARCH | SWT.ICON_CANCEL);
Image image = null;
if ((text.getStyle() & SWT.ICON_CANCEL) == 0) {
image = display.getSystemImage(SWT.ICON_ERROR);
ToolBar toolBar = new ToolBar(shell, SWT.FLAT);
ToolItem item = new ToolItem(toolBar, SWT.PUSH);
item.setImage(image);
item.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
text.setText("");
System.out.println("Search cancelled");
}
});
}
text.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
text.setText("Search text");
text.addSelectionListener(
new SelectionAdapter() {
@Override
public void widgetDefaultSelected(SelectionEvent e) {
if (e.detail == SWT.CANCEL) {
System.out.println("Search cancelled");
} else {
System.out.println("Searching for: " + text.getText() + "...");
}
}
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
if (image != null) image.dispose();
display.dispose();
}
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setText("Widget");
final Table table = new Table(shell, SWT.MULTI);
table.setLinesVisible(true);
table.setBounds(10, 10, 100, 100);
for (int i = 0; i < 9; i++) {
new TableItem(table, SWT.NONE).setText("item" + i);
}
Button button = new Button(shell, SWT.PUSH);
button.setText("Capture");
button.pack();
button.setLocation(10, 140);
button.addListener(
SWT.Selection,
event -> {
Point tableSize = table.getSize();
GC gc = new GC(table);
final Image image = new Image(display, tableSize.x, tableSize.y);
gc.copyArea(image, 0, 0);
gc.dispose();
Shell popup = new Shell(shell);
popup.setText("Image");
popup.addListener(SWT.Close, e -> image.dispose());
Canvas canvas = new Canvas(popup, SWT.NONE);
canvas.setBounds(10, 10, tableSize.x + 10, tableSize.y + 10);
canvas.addPaintListener(e -> e.gc.drawImage(image, 0, 0));
popup.pack();
popup.open();
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
LRESULT wmDrawChild(long /*int*/ wParam, long /*int*/ lParam) {
DRAWITEMSTRUCT struct = new DRAWITEMSTRUCT();
OS.MoveMemory(struct, lParam, DRAWITEMSTRUCT.sizeof);
if (image != null) {
GCData data = new GCData();
data.device = display;
GC gc = GC.win32_new(struct.hDC, data);
/*
* Bug in Windows. When a bitmap is included in the
* menu bar, the HDC seems to already include the left
* coordinate. The fix is to ignore this value when
* the item is in a menu bar.
*/
int x = (parent.style & SWT.BAR) != 0 ? MARGIN_WIDTH * 2 : struct.left;
Image image = getEnabled() ? this.image : new Image(display, this.image, SWT.IMAGE_DISABLE);
gc.drawImage(image, x, struct.top + MARGIN_HEIGHT);
if (this.image != image) image.dispose();
gc.dispose();
}
if (parent.foreground != -1) OS.SetTextColor(struct.hDC, parent.foreground);
return null;
}
public static void main(String[] args) {
final Display display = new Display();
final Image image = new Image(display, 16, 16);
GC gc = new GC(image);
gc.setBackground(display.getSystemColor(SWT.COLOR_RED));
gc.fillRectangle(image.getBounds());
gc.dispose();
final Shell shell = new Shell(display);
shell.setText("Lazy Table");
shell.setLayout(new FillLayout());
final Table table = new Table(shell, SWT.BORDER | SWT.MULTI);
table.setSize(200, 200);
Thread thread =
new Thread() {
@Override
public void run() {
for (int i = 0; i < 20000; i++) {
if (table.isDisposed()) return;
final int[] index = new int[] {i};
display.syncExec(
() -> {
if (table.isDisposed()) return;
TableItem item = new TableItem(table, SWT.NONE);
item.setText("Table Item " + index[0]);
item.setImage(image);
});
}
}
};
thread.start();
shell.setSize(200, 200);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
image.dispose();
display.dispose();
}
int XmNexposureCallback(int w, int client_data, int call_data) {
if ((style & SWT.SEPARATOR) != 0) return 0;
int xDisplay = OS.XtDisplay(handle);
if (xDisplay == 0) return 0;
int xWindow = OS.XtWindow(handle);
if (xWindow == 0) return 0;
int[] argList = {
OS.XmNcolormap, 0,
OS.XmNwidth, 0,
OS.XmNheight, 0,
};
OS.XtGetValues(handle, argList, argList.length / 2);
int width = argList[3], height = argList[5];
Image currentImage = image;
boolean enabled = getEnabled();
if ((parent.style & SWT.FLAT) != 0) {
boolean hasCursor = hasCursor();
/* Set the shadow thickness */
int thickness = 0;
if (set || (hasCursor && enabled)) {
thickness = Math.min(2, display.buttonShadowThickness);
}
argList = new int[] {OS.XmNshadowThickness, thickness};
OS.XtSetValues(handle, argList, argList.length / 2);
/* Determine if hot image should be used */
if (enabled && hasCursor && hotImage != null) {
currentImage = hotImage;
}
}
GCData data = new GCData();
data.device = display;
data.display = xDisplay;
data.drawable = xWindow;
data.font = parent.font;
data.colormap = argList[1];
int xGC = OS.XCreateGC(xDisplay, xWindow, 0, null);
if (xGC == 0) SWT.error(SWT.ERROR_NO_HANDLES);
GC gc = GC.motif_new(xGC, data);
XmAnyCallbackStruct cb = new XmAnyCallbackStruct();
OS.memmove(cb, call_data, XmAnyCallbackStruct.sizeof);
if (cb.event != 0) {
XExposeEvent xEvent = new XExposeEvent();
OS.memmove(xEvent, cb.event, XExposeEvent.sizeof);
Rectangle rect = new Rectangle(xEvent.x, xEvent.y, xEvent.width, xEvent.height);
gc.setClipping(rect);
}
if (!enabled) {
currentImage = disabledImage;
if (currentImage == null && image != null) {
currentImage = new Image(display, image, SWT.IMAGE_DISABLE);
}
Color disabledColor = display.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW);
gc.setForeground(disabledColor);
} else {
gc.setForeground(parent.getForeground());
}
gc.setBackground(parent.getBackground());
int textX = 0, textY = 0, textWidth = 0, textHeight = 0;
if (text.length() != 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC;
Point textExtent = gc.textExtent(text, flags);
textWidth = textExtent.x;
textHeight = textExtent.y;
}
int imageX = 0, imageY = 0, imageWidth = 0, imageHeight = 0;
if (currentImage != null) {
Rectangle imageBounds = currentImage.getBounds();
imageWidth = imageBounds.width;
imageHeight = imageBounds.height;
}
int spacing = 0;
if (textWidth != 0 && imageWidth != 0) spacing = 2;
if ((parent.style & SWT.RIGHT) != 0) {
imageX = (width - imageWidth - textWidth - spacing) / 2;
imageY = (height - imageHeight) / 2;
textX = spacing + imageX + imageWidth;
textY = (height - textHeight) / 2;
} else {
imageX = (width - imageWidth) / 2;
imageY = (height - imageHeight - textHeight - spacing) / 2;
textX = (width - textWidth) / 2;
textY = spacing + imageY + imageHeight;
}
if ((style & SWT.DROP_DOWN) != 0) {
textX -= 6;
imageX -= 6;
}
if (textWidth > 0) {
int flags = SWT.DRAW_DELIMITER | SWT.DRAW_TAB | SWT.DRAW_MNEMONIC | SWT.DRAW_TRANSPARENT;
gc.drawText(text, textX, textY, flags);
}
if (imageWidth > 0) gc.drawImage(currentImage, imageX, imageY);
if ((style & SWT.DROP_DOWN) != 0) {
int startX = width - 12, startY = (height - 2) / 2;
int[] arrow = {startX, startY, startX + 3, startY + 3, startX + 6, startY};
gc.setBackground(parent.getForeground());
gc.fillPolygon(arrow);
gc.drawPolygon(arrow);
}
gc.dispose();
OS.XFreeGC(xDisplay, xGC);
if (!enabled && disabledImage == null) {
if (currentImage != null) currentImage.dispose();
}
return 0;
}
public static void main(String[] args) {
final Display display = new Display();
final Image image = display.getSystemImage(SWT.ICON_INFORMATION);
final Shell shell = new Shell(display, SWT.NO_TRIM);
Region region = new Region();
final ImageData imageData = image.getImageData();
if (imageData.alphaData != null) {
Rectangle pixel = new Rectangle(0, 0, 1, 1);
for (int y = 0; y < imageData.height; y++) {
for (int x = 0; x < imageData.width; x++) {
if (imageData.getAlpha(x, y) == 255) {
pixel.x = imageData.x + x;
pixel.y = imageData.y + y;
region.add(pixel);
}
}
}
} else {
ImageData mask = imageData.getTransparencyMask();
Rectangle pixel = new Rectangle(0, 0, 1, 1);
for (int y = 0; y < mask.height; y++) {
for (int x = 0; x < mask.width; x++) {
if (mask.getPixel(x, y) != 0) {
pixel.x = imageData.x + x;
pixel.y = imageData.y + y;
region.add(pixel);
}
}
}
}
shell.setRegion(region);
Listener l =
new Listener() {
/** The x/y of the MouseDown, relative to top-left of the shell. */
int startX, startY;
@Override
public void handleEvent(Event e) {
if (e.type == SWT.KeyDown && e.character == SWT.ESC) {
shell.dispose();
}
if (e.type == SWT.MouseDown && e.button == 1) {
Point p = shell.toDisplay(e.x, e.y);
Point loc = shell.getLocation();
startX = p.x - loc.x;
startY = p.y - loc.y;
}
if (e.type == SWT.MouseMove && (e.stateMask & SWT.BUTTON1) != 0) {
Point p = shell.toDisplay(e.x, e.y);
p.x -= startX;
p.y -= startY;
shell.setLocation(p);
}
if (e.type == SWT.Paint) {
e.gc.drawImage(image, imageData.x, imageData.y);
}
}
};
shell.addListener(SWT.KeyDown, l);
shell.addListener(SWT.MouseDown, l);
shell.addListener(SWT.MouseMove, l);
shell.addListener(SWT.Paint, l);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
region.dispose();
image.dispose();
display.dispose();
}
void updateImages(boolean enabled) {
if ((style & SWT.SEPARATOR) != 0) return;
long /*int*/ hwnd = parent.handle;
TBBUTTONINFO info = new TBBUTTONINFO();
info.cbSize = TBBUTTONINFO.sizeof;
info.dwMask = OS.TBIF_IMAGE;
OS.SendMessage(hwnd, OS.TB_GETBUTTONINFO, id, info);
if (info.iImage == OS.I_IMAGENONE && image == null) return;
ImageList imageList = parent.getImageList();
ImageList hotImageList = parent.getHotImageList();
ImageList disabledImageList = parent.getDisabledImageList();
if (info.iImage == OS.I_IMAGENONE) {
Rectangle bounds = image.getBounds();
int listStyle = parent.style & SWT.RIGHT_TO_LEFT;
if (imageList == null) {
imageList = display.getImageListToolBar(listStyle, bounds.width, bounds.height);
}
if (disabledImageList == null) {
disabledImageList =
display.getImageListToolBarDisabled(listStyle, bounds.width, bounds.height);
}
if (hotImageList == null) {
hotImageList = display.getImageListToolBarHot(listStyle, bounds.width, bounds.height);
}
Image disabled = disabledImage;
if (disabledImage == null) {
if (disabledImage2 != null) disabledImage2.dispose();
disabledImage2 = null;
disabled = image;
if (!enabled) {
disabled = disabledImage2 = new Image(display, image, SWT.IMAGE_DISABLE);
}
}
/*
* Bug in Windows. When a tool item with the style
* BTNS_CHECK or BTNS_CHECKGROUP is selected and then
* disabled, the item does not draw using the disabled
* image. The fix is to assign the disabled image in
* all image lists.
*/
Image image2 = image, hot = hotImage;
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
if (!enabled) image2 = hot = disabled;
}
info.iImage = imageList.add(image2);
disabledImageList.add(disabled);
hotImageList.add(hot != null ? hot : image2);
parent.setImageList(imageList);
parent.setDisabledImageList(disabledImageList);
parent.setHotImageList(hotImageList);
} else {
Image disabled = null;
if (disabledImageList != null) {
if (image != null) {
if (disabledImage2 != null) disabledImage2.dispose();
disabledImage2 = null;
disabled = disabledImage;
if (disabledImage == null) {
disabled = image;
if (!enabled) {
disabled = disabledImage2 = new Image(display, image, SWT.IMAGE_DISABLE);
}
}
}
disabledImageList.put(info.iImage, disabled);
}
/*
* Bug in Windows. When a tool item with the style
* BTNS_CHECK or BTNS_CHECKGROUP is selected and then
* disabled, the item does not draw using the disabled
* image. The fix is to use the disabled image in all
* image lists.
*/
Image image2 = image, hot = hotImage;
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
if (!enabled) image2 = hot = disabled;
}
if (imageList != null) imageList.put(info.iImage, image2);
if (hotImageList != null) {
hotImageList.put(info.iImage, hot != null ? hot : image2);
}
if (image == null) info.iImage = OS.I_IMAGENONE;
}
/*
* Bug in Windows. If the width of an item has already been
* calculated, the tool bar control will not recalculate it to
* include the space for the image. The fix is to set the width
* to zero, forcing the control recalculate the width for the item.
*/
info.dwMask |= OS.TBIF_SIZE;
info.cx = 0;
OS.SendMessage(hwnd, OS.TB_SETBUTTONINFO, id, info);
long /*int*/ hFont = OS.SendMessage(hwnd, OS.WM_GETFONT, 0, 0);
OS.SendMessage(hwnd, OS.WM_SETFONT, hFont, 0);
parent.layoutItems();
}
Image getDragSourceImage(DragSourceEvent event) {
if (dragSourceImage != null) dragSourceImage.dispose();
dragSourceImage = null;
Table table = (Table) control;
if (OS.GTK_VERSION < OS.VERSION(2, 2, 0)) return null;
// TEMPORARY CODE
if (table.isListening(SWT.EraseItem) || table.isListening(SWT.PaintItem)) return null;
/*
* Bug in GTK. gtk_tree_selection_get_selected_rows() segmentation faults
* in versions smaller than 2.2.4 if the model is NULL. The fix is
* to give a valid pointer instead.
*/
long /*int*/ handle = table.handle;
long /*int*/ selection = OS.gtk_tree_view_get_selection(handle);
long /*int*/[] model = OS.GTK_VERSION < OS.VERSION(2, 2, 4) ? new long /*int*/[1] : null;
long /*int*/ list = OS.gtk_tree_selection_get_selected_rows(selection, model);
if (list == 0) return null;
int count = Math.min(10, OS.g_list_length(list));
Display display = table.getDisplay();
if (count == 1) {
long /*int*/ path = OS.g_list_nth_data(list, 0);
long /*int*/ pixmap = OS.gtk_tree_view_create_row_drag_icon(handle, path);
dragSourceImage = Image.gtk_new(display, SWT.ICON, pixmap, 0);
} else {
int width = 0, height = 0;
int[] w = new int[1], h = new int[1];
int[] yy = new int[count], hh = new int[count];
long /*int*/[] pixmaps = new long /*int*/[count];
GdkRectangle rect = new GdkRectangle();
for (int i = 0; i < count; i++) {
long /*int*/ path = OS.g_list_nth_data(list, i);
OS.gtk_tree_view_get_cell_area(handle, path, 0, rect);
pixmaps[i] = OS.gtk_tree_view_create_row_drag_icon(handle, path);
OS.gdk_drawable_get_size(pixmaps[i], w, h);
width = Math.max(width, w[0]);
height = rect.y + h[0] - yy[0];
yy[i] = rect.y;
hh[i] = h[0];
}
long /*int*/ source = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), width, height, -1);
long /*int*/ gcSource = OS.gdk_gc_new(source);
long /*int*/ mask = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), width, height, 1);
long /*int*/ gcMask = OS.gdk_gc_new(mask);
GdkColor color = new GdkColor();
color.pixel = 0;
OS.gdk_gc_set_foreground(gcMask, color);
OS.gdk_draw_rectangle(mask, gcMask, 1, 0, 0, width, height);
color.pixel = 1;
OS.gdk_gc_set_foreground(gcMask, color);
for (int i = 0; i < count; i++) {
OS.gdk_draw_drawable(source, gcSource, pixmaps[i], 0, 0, 0, yy[i] - yy[0], -1, -1);
OS.gdk_draw_rectangle(mask, gcMask, 1, 0, yy[i] - yy[0], width, hh[i]);
OS.g_object_unref(pixmaps[i]);
}
OS.g_object_unref(gcSource);
OS.g_object_unref(gcMask);
dragSourceImage = Image.gtk_new(display, SWT.ICON, source, mask);
}
OS.g_list_free(list);
return dragSourceImage;
}
/**
* This implementation of <code>dragFinished</code> disposes the image that was created in <code>
* TableDragSourceEffect.dragStart</code>.
*
* <p>Subclasses that override this method should call <code>super.dragFinished(event)</code> to
* dispose the image in the default implementation.
*
* @param event the information associated with the drag finished event
*/
public void dragFinished(DragSourceEvent event) {
if (dragSourceImage != null) dragSourceImage.dispose();
dragSourceImage = null;
}
public static void main(String[] args) {
Shell shell = new Shell();
Display display = shell.getDisplay();
shell.setLayout(new FillLayout());
shell.setText("ExpandBar Example");
Menu menubar = new Menu(shell, SWT.BAR);
shell.setMenuBar(menubar);
MenuItem fileItem = new MenuItem(menubar, SWT.CASCADE);
fileItem.setText("&File");
Menu submenu = new Menu(shell, SWT.DROP_DOWN);
fileItem.setMenu(submenu);
item = new MenuItem(submenu, SWT.PUSH);
item.setText("New ExpandItem");
bar = new ExpandBar(shell, SWT.V_SCROLL);
image = display.getSystemImage(SWT.ICON_QUESTION);
// First item
Composite composite = new Composite(bar, SWT.NONE);
Menu popupmenu = new Menu(shell, SWT.POP_UP);
MenuItem popupItem = new MenuItem(popupmenu, SWT.PUSH);
popupItem.setText("Popup");
composite.setMenu(popupmenu);
GridLayout layout = new GridLayout(2, false);
layout.marginLeft = layout.marginTop = layout.marginRight = layout.marginBottom = 10;
layout.verticalSpacing = 10;
composite.setLayout(layout);
Label label = new Label(composite, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_ERROR));
label = new Label(composite, SWT.NONE);
label.setText("SWT.ICON_ERROR");
label = new Label(composite, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_INFORMATION));
label = new Label(composite, SWT.NONE);
label.setText("SWT.ICON_INFORMATION");
label = new Label(composite, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_WARNING));
label = new Label(composite, SWT.NONE);
label.setText("SWT.ICON_WARNING");
label = new Label(composite, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_QUESTION));
label = new Label(composite, SWT.NONE);
label.setText("SWT.ICON_QUESTION");
ExpandItem item1 = new ExpandItem(bar, SWT.NONE);
item1.setText("What is your favorite icon");
item1.setHeight(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item1.setControl(composite);
item1.setImage(image);
// Second item
composite = new Composite(bar, SWT.NONE);
layout = new GridLayout(2, true);
layout.marginLeft = layout.marginTop = layout.marginRight = layout.marginBottom = 10;
layout.verticalSpacing = 10;
composite.setLayout(layout);
Button button1 = new Button(composite, SWT.PUSH);
button1.setText("Button 1");
Button button2 = new Button(composite, SWT.PUSH);
button2.setText("Button 2");
ExpandItem item0 = new ExpandItem(bar, SWT.NONE);
item0.setText("What is your favorite button");
item0.setHeight(composite.computeSize(SWT.DEFAULT, SWT.DEFAULT).y);
item0.setControl(composite);
item0.setImage(image);
item0.setExpanded(false);
item.addListener(
SWT.Selection,
new Listener() {
@Override
public void handleEvent(Event e) {
ExpandItem item2 = new ExpandItem(bar, SWT.NONE);
Composite composite = new Composite(bar, SWT.NONE);
GridLayout layout = new GridLayout(2, false);
composite.setLayout(layout);
Label label = new Label(composite, SWT.NONE);
label.setText("What is your name?");
Composite pcomposite = new Composite(composite, SWT.NONE);
Text text = new Text(pcomposite, SWT.NONE);
item2.setText("New Question");
text.pack();
composite.pack();
Point size = composite.computeSize(SWT.DEFAULT, SWT.DEFAULT);
item2.setHeight(size.y);
item2.setControl(composite);
item2.setImage(image);
item2.setExpanded(true);
}
});
bar.setSpacing(8);
shell.setSize(400, 550);
shell.open();
System.out.println("------------------------------");
System.out.println("getSize: " + button1.getSize());
System.out.println("getBounds: " + button1.getBounds());
System.out.println("computeSize: " + button1.computeSize(SWT.DEFAULT, SWT.DEFAULT));
System.out.println("getLocation: " + button1.getLocation());
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
image.dispose();
display.dispose();
}
public static void main(String[] args) {
final Display display = new Display();
final Clipboard clipboard = new Clipboard(display);
final Shell shell = new Shell(display, SWT.SHELL_TRIM);
shell.setLayout(new GridLayout());
shell.setText("Clipboard ImageTransfer");
final Button imageButton = new Button(shell, SWT.NONE);
GridData gd = new GridData(SWT.FILL, SWT.FILL, true, true);
gd.minimumHeight = 400;
gd.minimumWidth = 600;
imageButton.setLayoutData(gd);
final Text imageText = new Text(shell, SWT.BORDER);
imageText.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
Composite buttons = new Composite(shell, SWT.NONE);
buttons.setLayout(new GridLayout(4, true));
Button button = new Button(buttons, SWT.PUSH);
button.setText("Open");
button.addListener(
SWT.Selection,
event -> {
FileDialog dialog = new FileDialog(shell, SWT.OPEN);
dialog.setText("Open an image file or cancel");
String string = dialog.open();
if (string != null) {
imageButton.setText("");
Image image = imageButton.getImage();
if (image != null) image.dispose();
image = new Image(display, string);
imageButton.setImage(image);
imageText.setText(string);
}
});
button = new Button(buttons, SWT.PUSH);
button.setText("Copy");
button.addListener(
SWT.Selection,
event -> {
Image image = imageButton.getImage();
if (image != null) {
ImageTransfer imageTransfer = ImageTransfer.getInstance();
TextTransfer textTransfer = TextTransfer.getInstance();
clipboard.setContents(
new Object[] {image.getImageData(), imageText.getText()},
new Transfer[] {imageTransfer, textTransfer});
}
});
button = new Button(buttons, SWT.PUSH);
button.setText("Paste");
button.addListener(
SWT.Selection,
event -> {
ImageData imageData = (ImageData) clipboard.getContents(ImageTransfer.getInstance());
if (imageData != null) {
imageButton.setText("");
Image image = imageButton.getImage();
if (image != null) image.dispose();
image = new Image(display, imageData);
imageButton.setImage(image);
} else {
imageButton.setText("No image");
imageButton.setImage(null);
}
String text = (String) clipboard.getContents(TextTransfer.getInstance());
if (text != null) {
imageText.setText(text);
} else {
imageText.setText("");
}
});
button = new Button(buttons, SWT.PUSH);
button.setText("Clear");
button.addListener(
SWT.Selection,
event -> {
imageButton.setText("");
Image image = imageButton.getImage();
if (image != null) image.dispose();
imageButton.setImage(null);
imageText.setText("");
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}