/**
* Paints the preview title at the given position (and returns the required height)
*
* @param gc the graphics context to paint into
* @param x the left edge of the preview rectangle
* @param y the top edge of the preview rectangle
* @param displayName the title string to be used
*/
int paintTitle(GC gc, int x, int y, boolean showFile, String displayName) {
int titleHeight = 0;
if (showFile && mIncludedWithin != null) {
if (mManager.getMode() != INCLUDES) {
displayName = "<include>";
} else {
// Skip: just paint footer instead
displayName = null;
}
}
int width = getWidth();
int labelTop = y + 1;
gc.setClipping(x, labelTop, width, 100);
// Use font height rather than extent height since we want two adjacent
// previews (which may have different display names and therefore end
// up with slightly different extent heights) to have identical title
// heights such that they are aligned identically
int fontHeight = gc.getFontMetrics().getHeight();
if (displayName != null && displayName.length() > 0) {
gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_WHITE));
Point extent = gc.textExtent(displayName);
int labelLeft = Math.max(x, x + (width - extent.x) / 2);
Image icon = null;
Locale locale = mConfiguration.getLocale();
if (locale != null
&& (locale.hasLanguage() || locale.hasRegion())
&& (!(mConfiguration instanceof NestedConfiguration)
|| ((NestedConfiguration) mConfiguration).isOverridingLocale())) {
icon = locale.getFlagImage();
}
if (icon != null) {
int flagWidth = icon.getImageData().width;
int flagHeight = icon.getImageData().height;
labelLeft = Math.max(x + flagWidth / 2, labelLeft);
gc.drawImage(icon, labelLeft - flagWidth / 2 - 1, labelTop);
labelLeft += flagWidth / 2 + 1;
gc.drawText(displayName, labelLeft, labelTop - (extent.y - flagHeight) / 2, true);
} else {
gc.drawText(displayName, labelLeft, labelTop, true);
}
labelTop += extent.y;
titleHeight += fontHeight;
}
if (showFile && (mAlternateInput != null || mIncludedWithin != null)) {
// Draw file flag, and parent folder name
IFile file = mAlternateInput != null ? mAlternateInput : mIncludedWithin.getFile();
String fileName = file.getParent().getName() + File.separator + file.getName();
Point extent = gc.textExtent(fileName);
Image icon = IconFactory.getInstance().getIcon("android_file"); // $NON-NLS-1$
int flagWidth = icon.getImageData().width;
int flagHeight = icon.getImageData().height;
int labelLeft = Math.max(x, x + (width - extent.x - flagWidth - 1) / 2);
gc.drawImage(icon, labelLeft, labelTop);
gc.setForeground(gc.getDevice().getSystemColor(SWT.COLOR_GRAY));
labelLeft += flagWidth + 1;
labelTop -= (extent.y - flagHeight) / 2;
gc.drawText(fileName, labelLeft, labelTop, true);
titleHeight += Math.max(titleHeight, icon.getImageData().height);
}
gc.setClipping((Region) null);
return titleHeight;
}
/**
* Notifies that the preview's configuration has changed.
*
* @param flags the change flags, a bitmask corresponding to the {@code CHANGE_} constants in
* {@link ConfigurationClient}
*/
public void configurationChanged(int flags) {
if (!mVisible) {
mDirty |= flags;
return;
}
if ((flags & MASK_RENDERING) != 0) {
mResourceResolver.clear();
// Handle inheritance
mConfiguration.syncFolderConfig();
updateForkStatus();
updateSize();
}
// Sanity check to make sure things are working correctly
if (DEBUG) {
RenderPreviewMode mode = mManager.getMode();
if (mode == DEFAULT) {
assert mConfiguration instanceof VaryingConfiguration;
VaryingConfiguration config = (VaryingConfiguration) mConfiguration;
int alternateFlags = config.getAlternateFlags();
switch (alternateFlags) {
case Configuration.CFG_DEVICE_STATE:
{
State configState = config.getDeviceState();
State chooserState = mManager.getChooser().getConfiguration().getDeviceState();
assert configState != null && chooserState != null;
assert !configState.getName().equals(chooserState.getName())
: configState.toString() + ':' + chooserState;
Device configDevice = config.getDevice();
Device chooserDevice = mManager.getChooser().getConfiguration().getDevice();
assert configDevice != null && chooserDevice != null;
assert configDevice == chooserDevice : configDevice.toString() + ':' + chooserDevice;
break;
}
case Configuration.CFG_DEVICE:
{
Device configDevice = config.getDevice();
Device chooserDevice = mManager.getChooser().getConfiguration().getDevice();
assert configDevice != null && chooserDevice != null;
assert configDevice != chooserDevice : configDevice.toString() + ':' + chooserDevice;
State configState = config.getDeviceState();
State chooserState = mManager.getChooser().getConfiguration().getDeviceState();
assert configState != null && chooserState != null;
assert configState.getName().equals(chooserState.getName())
: configState.toString() + ':' + chooserState;
break;
}
case Configuration.CFG_LOCALE:
{
Locale configLocale = config.getLocale();
Locale chooserLocale = mManager.getChooser().getConfiguration().getLocale();
assert configLocale != null && chooserLocale != null;
assert configLocale != chooserLocale : configLocale.toString() + ':' + chooserLocale;
break;
}
default:
{
// Some other type of override I didn't anticipate
assert false : alternateFlags;
}
}
}
}
mDirty = 0;
mManager.scheduleRender(this);
}