C++ ANPPaintInterfaceV0::deletePaint方法代码示例

PaintPlugin::~PaintPlugin() {
    gPathI.deletePath(m_touchPath);
    gPaintI.deletePaint(m_paintSurface);
    gPaintI.deletePaint(m_paintButton);

    setContext(NULL);
    destroySurface();
}

AudioPlugin::~AudioPlugin() {
    gPaintI.deletePaint(m_paintTrack);
    gPaintI.deletePaint(m_paintRect);
    gPaintI.deletePaint(m_paintText);
    gPaintI.deletePaint(m_paintTrackProgress);
    gPaintI.deletePaint(m_paintActiveRect);
    if(m_soundPlay->track)
        gSoundI.deleteTrack(m_soundPlay->track);
    delete m_soundPlay;
}

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 PaintPlugin::paintTouch() {
    //TODO do not paint outside the drawing surface

    //create the paint color
    ANPPaint* strokePaint = gPaintI.newPaint();
    gPaintI.setFlags(strokePaint, gPaintI.getFlags(strokePaint) | kAntiAlias_ANPPaintFlag);
    gPaintI.setColor(strokePaint, m_activePaintColor);
    gPaintI.setStyle(strokePaint, kStroke_ANPPaintStyle);
    gPaintI.setStrokeWidth(strokePaint, 6.0);
    gPaintI.setStrokeCap(strokePaint, kRound_ANPPaintCap);
    gPaintI.setStrokeJoin(strokePaint, kRound_ANPPaintJoin);

    // handle the complex "touch" paint (draw a line)
    ANPRectF bounds;
    gPathI.getBounds(m_touchPath, &bounds);

    // get a canvas that is only locked around the point and draw the path
    ANPCanvas* canvas = getCanvas(&bounds);
    gCanvasI.drawPath(canvas, m_touchPath, strokePaint);

    // clean up
    releaseCanvas(canvas);
    gPaintI.deletePaint(strokePaint);
}

void PaintPlugin::paintMouse(int x, int y) {
    //TODO do not paint outside the drawing surface

    //create the paint color
    ANPPaint* fillPaint = gPaintI.newPaint();
    gPaintI.setFlags(fillPaint, gPaintI.getFlags(fillPaint) | kAntiAlias_ANPPaintFlag);
    gPaintI.setStyle(fillPaint, kFill_ANPPaintStyle);
    gPaintI.setColor(fillPaint, m_activePaintColor);

    // handle the simple "mouse" paint (draw a point)
    ANPRectF point;
    point.left =   (float) x-3;
    point.top =    (float) y-3;
    point.right =  (float) x+3;
    point.bottom = (float) y+3;

    // get a canvas that is only locked around the point and draw it
    ANPCanvas* canvas = getCanvas(&point);
    gCanvasI.drawOval(canvas, &point, fillPaint);

    // clean up
    releaseCanvas(canvas);
    gPaintI.deletePaint(fillPaint);
}

FormPlugin::~FormPlugin() {
    gPaintI.deletePaint(m_paintInput);
    gPaintI.deletePaint(m_paintActive);
    gPaintI.deletePaint(m_paintText);
}

NavigationPlugin::~NavigationPlugin() {
    gPaintI.deletePaint(m_paintDisabled);
    gPaintI.deletePaint(m_paintActive);
}