зеркало из https://github.com/mozilla/pjs.git
[not part of build] added scrollbar action.
This commit is contained in:
beard%netscape.com
Родитель
0570af7613
Коммит
a6122e15bf
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@ -135,9 +135,9 @@ public:
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bool valid() { return mExporter != NULL; }
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void setInputGWorld(GWorldPtr gworld) { ::GraphicsExportSetInputGWorld(mExporter, gworld); }
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void setOutputHandle(Handle output) { ::GraphicsExportSetOutputHandle(mExporter, output); }
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void doExport() { ::GraphicsExportDoExport(mExporter, NULL); }
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OSStatus setInputGWorld(GWorldPtr gworld) { return ::GraphicsExportSetInputGWorld(mExporter, gworld); }
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OSStatus setOutputHandle(Handle output) { return ::GraphicsExportSetOutputHandle(mExporter, output); }
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OSStatus doExport() { return ::GraphicsExportDoExport(mExporter, NULL); }
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};
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GraphicsExporter::GraphicsExporter(OSType type)
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@ -150,6 +150,37 @@ GraphicsExporter::~GraphicsExporter()
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if (mExporter) ::CloseComponent(mExporter);
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}
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static nsresult encodeGWorld(GWorldPtr world, OSType type, nsIInputStream **result, PRInt32 *length)
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{
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nsresult rv = NS_ERROR_OUT_OF_MEMORY;
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GraphicsExporter exporter(type);
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if (exporter.valid()) {
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Handle imageHandle = ::NewHandle(0);
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if (imageHandle != NULL) {
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if (exporter.setInputGWorld(world) == noErr &&
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exporter.setOutputHandle(imageHandle) == noErr &&
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exporter.doExport() == noErr) {
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UInt32 imageLength = ::GetHandleSize(imageHandle);
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char* buffer = (char*) nsMemory::Alloc(imageLength);
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if (buffer != NULL) {
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nsCRT::memcpy(buffer, *imageHandle, imageLength);
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nsCOMPtr<nsIByteArrayInputStream> stream;
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rv = ::NS_NewByteArrayInputStream(getter_AddRefs(stream), buffer, imageLength);
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if (NS_SUCCEEDED(rv)) {
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*result = stream;
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NS_ADDREF(*result);
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*length = imageLength;
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} else {
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nsMemory::Free(buffer);
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}
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}
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}
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::DisposeHandle(imageHandle);
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}
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}
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return rv;
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}
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struct ButtonInfo {
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const char* title;
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Rect& bounds;
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@ -238,59 +269,8 @@ static nsresult drawThemeButton(int width, int height, bool isActive,
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}
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// now, encode the image as a 'PNGf' image, and return the encoded image
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// as an nsIInputStream result.
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#if 1
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GraphicsExporter exporter('PNGf');
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if (exporter.valid()) {
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exporter.setInputGWorld(world);
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Handle imageHandle = ::NewHandle(0);
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if (imageHandle != NULL) {
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exporter.setOutputHandle(imageHandle);
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exporter.doExport();
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UInt32 imageLength = ::GetHandleSize(imageHandle);
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char* buffer = (char*) nsMemory::Alloc(imageLength);
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if (buffer != NULL) {
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nsCRT::memcpy(buffer, *imageHandle, imageLength);
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nsCOMPtr<nsIByteArrayInputStream> stream;
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rv = ::NS_NewByteArrayInputStream(getter_AddRefs(stream), buffer, imageLength);
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if (NS_SUCCEEDED(rv)) {
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*result = stream;
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NS_ADDREF(*result);
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*length = imageLength;
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}
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}
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::DisposeHandle(imageHandle);
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}
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}
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#else
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GraphicsExportComponent exporter = ::OpenDefaultComponent(GraphicsExporterComponentType, 'PNGf');
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if (exporter != NULL) {
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ComponentResult cr = ::GraphicsExportSetInputGWorld(exporter, world);
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if (cr == noErr) {
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Handle outputHandle = ::NewHandle(0);
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if (outputHandle != NULL) {
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cr = ::GraphicsExportSetOutputHandle(exporter, outputHandle);
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unsigned long bytesWritten = 0;
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cr = ::GraphicsExportDoExport(exporter, &bytesWritten);
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if (cr == noErr) {
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char* buffer = (char*) nsMemory::Alloc(bytesWritten);
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if (buffer != NULL) {
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nsCRT::memcpy(buffer, *outputHandle, bytesWritten);
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nsCOMPtr<nsIByteArrayInputStream> stream;
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rv = ::NS_NewByteArrayInputStream(getter_AddRefs(stream), buffer, bytesWritten);
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if (NS_SUCCEEDED(rv)) {
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*result = stream;
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NS_ADDREF(*result);
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*length = bytesWritten;
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}
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}
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}
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::DisposeHandle(outputHandle);
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}
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}
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::CloseComponent(exporter);
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}
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#endif
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// as an nsIInputStream.
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rv = encodeGWorld(world, 'PNGf', result, length);
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}
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return rv;
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}
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@ -301,75 +281,49 @@ static nsresult drawThemeScrollbar(int width, int height,
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bool isLeftArrowPressed, bool isRightArrowPressed,
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nsIInputStream **result, PRInt32 *length)
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{
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nsresult rv = NS_ERROR_NOT_IMPLEMENTED;
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nsresult rv = NS_ERROR_OUT_OF_MEMORY;
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/* public byte[] drawThemeScrollbar(int width, int height,
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final int min, final int max, final int value, final int viewSize,
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boolean isActive, final boolean isHorizontal, boolean isThumbPressed,
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boolean isLeftArrowPressed, boolean isRightArrowPressed,
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QDColor background, int alpha) {
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try {
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QTSession.open();
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final byte enableState = (isActive ? kThemeTrackActive : kThemeTrackInactive);
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final byte pressState = (byte) ((isThumbPressed ? kThemeThumbPressed : 0) |
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(isRightArrowPressed ? (kThemeRightOutsideArrowPressed | kThemeLeftInsideArrowPressed) : 0) |
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(isLeftArrowPressed ? (kThemeLeftOutsideArrowPressed | kThemeRightInsideArrowPressed) : 0));
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final short trackState = (short) ((isHorizontal ? kThemeTrackHorizontal : 0) | kThemeTrackShowThumb);
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final short[] scrollbarBounds = { 0, 0, (short) height , (short) width };
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final short[] trackBounds = { 0, 0, 0, 0 };
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ThemeTrackEnableState enableState = (isActive ? kThemeTrackActive : kThemeTrackInactive);
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ThemeTrackPressState pressState = ((isThumbPressed ? kThemeThumbPressed : 0) |
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(isRightArrowPressed ? (kThemeRightOutsideArrowPressed | kThemeLeftInsideArrowPressed) : 0) |
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(isLeftArrowPressed ? (kThemeLeftOutsideArrowPressed | kThemeRightInsideArrowPressed) : 0));
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ThemeTrackAttributes trackState = ((isHorizontal ? kThemeTrackHorizontal : 0) | kThemeTrackShowThumb);
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Rect scrollbarBounds = { 0, 0, (short) height , (short) width };
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QDDrawer scrollbarDrawer = new QDDrawer() {
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public void draw(QDGraphics g) throws QTException {
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DrawThemeScrollBarArrows(scrollbarBounds, enableState, pressState, isHorizontal, trackBounds);
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short[] drawInfo = makeThemeTrackDrawInfo(kThemeScrollBar, trackBounds,
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min, max, value,
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trackState, enableState,
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viewSize, pressState);
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DrawThemeTrack(drawInfo, 0, 0, 0);
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}
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};
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QDRect bounds = new QDRect(width, height);
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QDGraphics g = new QDGraphics(bounds);
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// Initialize all pixels to an ARGB value of 0xFF000000.
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int backgroundRGB = background.getRGB();
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int backgroundARGB = 0xFF000000 | backgroundRGB;
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RawEncodedImage rawImage = g.getPixMap().getPixelData();
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int scan = rawImage.getRowBytes() / 4;
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int[] pixels = new int[scan * height];
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for (int i = pixels.length - 1; i >= 0; --i)
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pixels[i] = backgroundARGB;
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rawImage.copyFromArray(0, pixels, 0, pixels.length);
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// draw the scrollbar.
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g.beginDraw(scrollbarDrawer);
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// Use the fact that QuickDraw always draws pixels values
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// with an alpha value of 0, to determine which pixels
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// are actually set when drawing the button.
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rawImage.copyToArray(0, pixels, 0, pixels.length);
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for (int row = 0, offset = 0; row < height; ++row) {
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for (int i = 0; i < scan; ++i, ++offset) {
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int pixel = pixels[offset];
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if (pixel != backgroundARGB) {
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pixel |= alpha;
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} else {
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pixel = backgroundRGB;
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}
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pixels[offset] = pixel;
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}
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}
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rawImage.copyFromArray(0, pixels, 0, pixels.length);
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// use a Quicktime graphics exporter to encode the image.
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QTHandle imageHandle = new QTHandle();
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GraphicsExporter exporter = new GraphicsExporter(OSType("PNGf"));
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exporter.setInputGWorld(g);
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exporter.setOutputHandle(imageHandle);
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exporter.doExport();
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*/
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TempGWorld world(scrollbarBounds);
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if (world.valid()) {
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// initialize the GWorld with all black, alpha=0xFF.
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long* pixels = world.begin();
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long* limit = world.end();
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while (pixels < limit) *pixels++ = 0xFF000000;
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ThemeTrackDrawInfo drawInfo;
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DrawThemeScrollBarArrows(&scrollbarBounds, enableState, pressState, isHorizontal, &drawInfo.bounds);
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drawInfo.kind = kThemeScrollBar;
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drawInfo.min = min, drawInfo.max = max, drawInfo.value = value;
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drawInfo.reserved = 0;
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drawInfo.attributes = trackState;
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drawInfo.enableState = enableState;
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drawInfo.trackInfo.scrollbar.viewsize = viewSize;
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drawInfo.trackInfo.scrollbar.pressState = pressState;
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DrawThemeTrack(&drawInfo, NULL, NULL, 0);
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// now, for all pixels that aren't 0xFF000000, turn on the alpha channel,
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// otherwise turn it off on the pixels that weren't touched.
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pixels = world.begin();
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while (pixels < limit) {
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long& pixel = *pixels++;
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if (pixel != 0xFF000000)
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pixel |= 0xFF000000;
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else
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pixel = 0x00000000;
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}
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// now, encode the image as a 'PNGf' image, and return the encoded image
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// as an nsIInputStream.
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rv = encodeGWorld(world, 'PNGf', result, length);
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}
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return rv;
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}
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@ -377,7 +331,7 @@ typedef map<string, string> Arguments;
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static nsresult parseArguments(string path, Arguments& args)
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{
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// str should be of the form: button?name1=value1&...&nameN=valueN
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// str should be of the form: widget?name1=value1&...&nameN=valueN
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string::size_type questionMark = path.find('?');
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if (questionMark == string::npos) return NS_OK;
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@ -422,8 +376,8 @@ static bool getBoolArgument(const Arguments& args, const char* name, bool defaul
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/*
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1. Parse the URL path, which will be of the form:
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theme:button?width=40&height=20&title=OK
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2. Generate an image of a button in an offscreen GWorld, as specified by the URL.
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theme:widget?width=40&height=20&title=OK
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2. Generate an image of a widget in an offscreen GWorld, as specified by the URL.
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3. Encode the image as a PNG file, and return that via nsIInputStream/nsIChannel.
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*/
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NS_IMETHODIMP
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