private void freeDropShadowsColors() {
// Free colors :
{
for (Color c : dropShadowsColors) {
if (c != null && !c.isDisposed()) c.dispose();
}
}
}
@Test
public void dispose_disposesColors() {
ColorSequence sequence = new ColorSequence(display, rgb1);
Color color = sequence.get(0);
sequence.dispose();
assertTrue(color.isDisposed());
}
/**
* Sets the receiver's foreground color to the color specified by the argument, or to the default
* system color for the item if the argument is null.
*
* @param color the new color (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setForeground(final Color color) {
checkWidget();
if (color != null && color.isDisposed()) {
error(SWT.ERROR_INVALID_ARGUMENT);
}
if (!equals(foreground, color)) {
foreground = color;
markCached();
parent.redraw();
}
}
/*
* @see org.eclipse.swt.events.DisposeListener#widgetDisposed(org.eclipse.swt.events.DisposeEvent)
*/
public void widgetDisposed(DisposeEvent event) {
if (fStatusTextFont != null && !fStatusTextFont.isDisposed()) fStatusTextFont.dispose();
fStatusTextFont = null;
if (fStatusTextForegroundColor != null && !fStatusTextForegroundColor.isDisposed())
fStatusTextForegroundColor.dispose();
fStatusTextForegroundColor = null;
fTextFont = null;
fShell = null;
fText = null;
}
public void dispose(Display display) {
Map<RGB, Color> colorTable = fDisplayTable.get(display);
if (colorTable != null) {
Iterator<Color> e = colorTable.values().iterator();
while (e.hasNext()) {
Color color = e.next();
if (color != null && !color.isDisposed()) {
color.dispose();
}
}
}
}
/**
* Test of the method <code>setTheme()</code>.
*
* @throws Exception handled by JUnit
*/
public void testSetTheme() throws Exception {
final Color color1 = lnf.getColor(LnfKeyConstants.EMBEDDED_TITLEBAR_ACTIVE_FOREGROUND);
assertNotNull(color1);
lnf.setTheme(new DummyTheme());
lnf.initialize();
assertFalse(color1.isDisposed());
final Color color2 = lnf.getColor(LnfKeyConstants.EMBEDDED_TITLEBAR_ACTIVE_FOREGROUND);
assertNull(color2);
}
/**
* Sets the background color at the given column index in the receiver to the color specified by
* the argument, or to the default system color for the item if the argument is null.
*
* @param index the column index
* @param color the new color (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @since 3.0
*/
public void setBackground(int index, Color color) {
checkWidget();
if (color != null && color.isDisposed()) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (_getBackground(index).equals(color)) return;
int count = Math.max(1, parent.getColumnCount());
if (0 > index || index > count - 1) return;
int modelIndex =
parent.columnCount == 0 ? Table.FIRST_COLUMN : parent.columns[index].modelIndex;
GdkColor gdkColor = color != null ? color.handle : null;
OS.gtk_list_store_set(
parent.modelHandle, handle, modelIndex + Table.CELL_BACKGROUND, gdkColor, -1);
/*
* Bug in GTK. When using fixed-height-mode,
* row changes do not cause the row to be repainted. The fix is to
* invalidate the row when it is cleared.
*/
if ((parent.style & SWT.VIRTUAL) != 0) {
if (OS.GTK_VERSION >= OS.VERSION(2, 3, 2) && OS.GTK_VERSION < OS.VERSION(2, 6, 3)) {
redraw();
}
}
cached = true;
if (color != null) {
boolean customDraw =
(parent.columnCount == 0) ? parent.firstCustomDraw : parent.columns[index].customDraw;
if (!customDraw) {
if ((parent.style & SWT.VIRTUAL) == 0) {
int /*long*/ parentHandle = parent.handle;
int /*long*/ column = 0;
if (parent.columnCount > 0) {
column = parent.columns[index].handle;
} else {
column = OS.gtk_tree_view_get_column(parentHandle, index);
}
if (column == 0) return;
int /*long*/ textRenderer = parent.getTextRenderer(column);
int /*long*/ imageRenderer = parent.getPixbufRenderer(column);
OS.gtk_tree_view_column_set_cell_data_func(
column, textRenderer, display.cellDataProc, parentHandle, 0);
OS.gtk_tree_view_column_set_cell_data_func(
column, imageRenderer, display.cellDataProc, parentHandle, 0);
}
if (parent.columnCount == 0) {
parent.firstCustomDraw = true;
} else {
parent.columns[index].customDraw = true;
}
}
}
}
/**
* Constructs a new Pattern that represents a linear, two color gradient. Drawing with the pattern
* will cause the resulting area to be tiled with the gradient specified by the arguments.
*
* <p>This operation requires the operating system's advanced graphics subsystem which may not be
* available on some platforms.
*
* @param device the device on which to allocate the pattern
* @param x1 the x coordinate of the starting corner of the gradient
* @param y1 the y coordinate of the starting corner of the gradient
* @param x2 the x coordinate of the ending corner of the gradient
* @param y2 the y coordinate of the ending corner of the gradient
* @param color1 the starting color of the gradient
* @param alpha1 the starting alpha value of the gradient
* @param color2 the ending color of the gradient
* @param alpha2 the ending alpha value of the gradient
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, or if
* either color1 or color2 is null
* <li>ERROR_INVALID_ARGUMENT - if either color1 or color2 has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available
* </ul>
*
* @exception SWTError
* <ul>
* <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained
* </ul>
*
* @see #dispose()
* @since 3.2
*/
public Pattern(
Device device,
float x1,
float y1,
float x2,
float y2,
Color color1,
int alpha1,
Color color2,
int alpha2) {
super(device);
if (color1 == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (color1.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
if (color2 == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (color2.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
this.device.checkCairo();
handle = Cairo.cairo_pattern_create_linear(x1, y1, x2, y2);
if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES);
GC.setCairoPatternColor(handle, 0, color1, alpha1);
GC.setCairoPatternColor(handle, 1, color2, alpha2);
Cairo.cairo_pattern_set_extend(handle, Cairo.CAIRO_EXTEND_REPEAT);
init();
}
/*
* @see ISourceViewer#configure(SourceViewerConfiguration)
*/
@Override
public void configure(SourceViewerConfiguration configuration) {
/*
* Prevent access to colors disposed in unconfigure(), see:
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=53641
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=86177
*/
StyledText textWidget = getTextWidget();
if (textWidget != null && !textWidget.isDisposed()) {
Color foregroundColor = textWidget.getForeground();
if (foregroundColor != null && foregroundColor.isDisposed()) textWidget.setForeground(null);
Color backgroundColor = textWidget.getBackground();
if (backgroundColor != null && backgroundColor.isDisposed()) textWidget.setBackground(null);
}
super.configure(configuration);
if (configuration instanceof JavaSourceViewerConfiguration) {
JavaSourceViewerConfiguration javaSVCconfiguration =
(JavaSourceViewerConfiguration) configuration;
fOutlinePresenter = javaSVCconfiguration.getOutlinePresenter(this, false);
if (fOutlinePresenter != null) fOutlinePresenter.install(this);
fStructurePresenter = javaSVCconfiguration.getOutlinePresenter(this, true);
if (fStructurePresenter != null) fStructurePresenter.install(this);
fHierarchyPresenter = javaSVCconfiguration.getHierarchyPresenter(this, true);
if (fHierarchyPresenter != null) fHierarchyPresenter.install(this);
}
if (fPreferenceStore != null) {
fPreferenceStore.addPropertyChangeListener(this);
initializeViewerColors();
}
fIsConfigured = true;
}
/**
* Sets the foreground color at the given column index in the receiver to the color specified by
* the argument, or to the default system color for the item if the argument is null.
*
* @param index the column index
* @param color the new color (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setForeground(final int index, final Color color) {
checkWidget();
if (color != null && color.isDisposed()) {
error(SWT.ERROR_INVALID_ARGUMENT);
}
int count = Math.max(1, parent.getColumnCount());
if (index >= 0 && index < count) {
ensureData(index, count);
if (!equals(data[index].foreground, color)) {
data[index].foreground = color;
markCached();
parent.redraw();
}
}
}
/**
* Test of the method <code>uninitialize()</code>.
*
* @throws Exception handled by JUnit
*/
public void testUninitialize() throws Exception {
final Color color = lnf.getColor(LnfKeyConstants.EMBEDDED_TITLEBAR_ACTIVE_FOREGROUND);
assertNotNull(color);
final Font font = lnf.getFont(LnfKeyConstants.EMBEDDED_TITLEBAR_FONT);
assertNotNull(font);
lnf.uninitialize();
assertFalse(font.isDisposed());
assertNull(lnf.getFont(LnfKeyConstants.EMBEDDED_TITLEBAR_FONT));
assertFalse(color.isDisposed());
assertNull(lnf.getColor(LnfKeyConstants.EMBEDDED_TITLEBAR_ACTIVE_FOREGROUND));
assertNotSame(
color,
lnf.getColor(LnfKeyConstants.EMBEDDED_TITLEBAR_ACTIVE_FOREGROUND)); // TODO Could be removed
}
/**
* Sets the receiver's background color to the color specified by the argument, or to the default
* system color for the item if the argument is null.
*
* @param color the new color (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @since 2.0
*/
public void setBackground(Color color) {
checkWidget();
if (color != null && color.isDisposed()) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (_getBackground().equals(color)) return;
GdkColor gdkColor = color != null ? color.handle : null;
OS.gtk_list_store_set(parent.modelHandle, handle, Table.BACKGROUND_COLUMN, gdkColor, -1);
/*
* Bug in GTK. When using fixed-height-mode,
* row changes do not cause the row to be repainted. The fix is to
* invalidate the row when it is cleared.
*/
if ((parent.style & SWT.VIRTUAL) != 0) {
if (OS.GTK_VERSION >= OS.VERSION(2, 3, 2) && OS.GTK_VERSION < OS.VERSION(2, 6, 3)) {
redraw();
}
}
cached = true;
}
/**
* Gets the foreground color.
*
* @return the foreground color
*/
protected Color getForeground() {
if (foreground.isDisposed()) {
foreground = Display.getDefault().getSystemColor(DEFAULT_FOREGROUND);
}
return foreground;
}
