ANPCanvas* PaintPlugin::getCanvas(ANPRectI* dirtyRect) {
ANPBitmap bitmap;
JNIEnv* env = NULL;
if (!m_surface || gVM->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK ||
!gSurfaceI.lock(env, m_surface, &bitmap, dirtyRect)) {
return NULL;
}
ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap);
// clip the canvas to the dirty rect b/c the surface is only required to
// copy a minimum of the dirty rect and may copy more. The clipped canvas
// however will never write to pixels outside of the clipped area.
if (dirtyRect) {
ANPRectF clipR;
clipR.left = dirtyRect->left;
clipR.top = dirtyRect->top;
clipR.right = dirtyRect->right;
clipR.bottom = dirtyRect->bottom;
gCanvasI.clipRect(canvas, &clipR);
}
return canvas;
}
void BackgroundPlugin::drawPlugin(int surfaceWidth, int surfaceHeight) {
// get the plugin's dimensions according to the DOM
PluginObject *obj = (PluginObject*) inst()->pdata;
const int W = obj->window->width;
const int H = obj->window->height;
// compute the current zoom level
const float zoomFactorW = static_cast<float>(surfaceWidth) / W;
const float zoomFactorH = static_cast<float>(surfaceHeight) / H;
// check to make sure the zoom level is uniform
if (zoomFactorW + .01 < zoomFactorH && zoomFactorW - .01 > zoomFactorH)
gLogI.log(kError_ANPLogType, " ------ %p zoom is out of sync (%f,%f)",
inst(), zoomFactorW, zoomFactorH);
// scale the variables based on the zoom level
const int fontSize = (int)(zoomFactorW * 16);
const int leftMargin = (int)(zoomFactorW * 10);
// lock the surface
ANPBitmap bitmap;
JNIEnv* env = NULL;
if (!m_surface || gVM->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK ||
!gSurfaceI.lock(env, m_surface, &bitmap, NULL)) {
gLogI.log(kError_ANPLogType, " ------ %p unable to lock the plugin", inst());
return;
}
// create a canvas
ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap);
gCanvasI.drawColor(canvas, 0xFFFFFFFF);
ANPPaint* paint = gPaintI.newPaint();
gPaintI.setFlags(paint, gPaintI.getFlags(paint) | kAntiAlias_ANPPaintFlag);
gPaintI.setColor(paint, 0xFFFF0000);
gPaintI.setTextSize(paint, fontSize);
ANPTypeface* tf = gTypefaceI.createFromName("serif", kItalic_ANPTypefaceStyle);
gPaintI.setTypeface(paint, tf);
gTypefaceI.unref(tf);
ANPFontMetrics fm;
gPaintI.getFontMetrics(paint, &fm);
gPaintI.setColor(paint, 0xFF0000FF);
const char c[] = "This is a background plugin.";
gCanvasI.drawText(canvas, c, sizeof(c)-1, leftMargin, -fm.fTop, paint);
// clean up variables and unlock the surface
gPaintI.deletePaint(paint);
gCanvasI.deleteCanvas(canvas);
gSurfaceI.unlock(env, m_surface);
}
void AudioPlugin::drawPlugin(const ANPBitmap& bitmap, const ANPRectI& clip) {
ANPCanvas* canvas = gCanvasI.newCanvas(&bitmap);
ANPRectF clipR;
clipR.left = clip.left;
clipR.top = clip.top;
clipR.right = clip.right;
clipR.bottom = clip.bottom;
gCanvasI.clipRect(canvas, &clipR);
draw(canvas);
gCanvasI.deleteCanvas(canvas);
}