Examples with PagePart com.github.barteksc.pdfviewer.model.PagePart used on opensource projects

Example 1 with PagePart

use of com.github.barteksc.pdfviewer.model.PagePart in project AndroidPdfViewer by barteksc.

the class RenderingHandler method handleMessage.

@Override
public void handleMessage(Message message) {
    RenderingTask task = (RenderingTask) message.obj;
    final PagePart part = proceed(task);
    if (part != null) {
        pdfView.post(new Runnable() {

            @Override
            public void run() {
                pdfView.onBitmapRendered(part);
            }
        });
    }
}

Example 2 with PagePart

use of com.github.barteksc.pdfviewer.model.PagePart in project AndroidPdfViewer by barteksc.

the class RenderingHandler method proceed.

private PagePart proceed(RenderingTask renderingTask) {
    if (!openedPages.contains(renderingTask.page)) {
        openedPages.add(renderingTask.page);
        pdfiumCore.openPage(pdfDocument, renderingTask.page);
    }
    int w = Math.round(renderingTask.width);
    int h = Math.round(renderingTask.height);
    Bitmap render = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
    calculateBounds(w, h, renderingTask.bounds);
    pdfiumCore.renderPageBitmap(pdfDocument, render, renderingTask.page, roundedRenderBounds.left, roundedRenderBounds.top, roundedRenderBounds.width(), roundedRenderBounds.height(), renderingTask.annotationRendering);
    if (!renderingTask.bestQuality) {
        Bitmap cpy = render.copy(Bitmap.Config.RGB_565, false);
        render.recycle();
        render = cpy;
    }
    return new //
    PagePart(//
    renderingTask.userPage, //
    renderingTask.page, //
    render, //
    renderingTask.width, //
    renderingTask.height, //
    renderingTask.bounds, //
    renderingTask.thumbnail, renderingTask.cacheOrder);
}

Example 3 with PagePart

use of com.github.barteksc.pdfviewer.model.PagePart in project AndroidPdfViewer by barteksc.

the class CacheManager method recycle.

public void recycle() {
    synchronized (passiveActiveLock) {
        for (PagePart part : passiveCache) {
            part.getRenderedBitmap().recycle();
        }
        passiveCache.clear();
        for (PagePart part : activeCache) {
            part.getRenderedBitmap().recycle();
        }
        activeCache.clear();
    }
    synchronized (thumbnails) {
        for (PagePart part : thumbnails) {
            part.getRenderedBitmap().recycle();
        }
        thumbnails.clear();
    }
}

Example 4 with PagePart

use of com.github.barteksc.pdfviewer.model.PagePart in project AndroidPdfViewer by barteksc.

the class PDFView method onDraw.

@Override
protected void onDraw(Canvas canvas) {
    if (isInEditMode()) {
        return;
    }
    // As I said in this class javadoc, we can think of this canvas as a huge
    // strip on which we draw all the images. We actually only draw the rendered
    // parts, of course, but we render them in the place they belong in this huge
    // strip.
    // That's where Canvas.translate(x, y) becomes very helpful.
    // This is the situation :
    //  _______________________________________________
    // |   			 |					 			   |
    // | the actual  |					The big strip  |
    // |	canvas	 | 								   |
    // |_____________|								   |
    // |_______________________________________________|
    //
    // If the rendered part is on the bottom right corner of the strip
    // we can draw it but we won't see it because the canvas is not big enough.
    // But if we call translate(-X, -Y) on the canvas just before drawing the object :
    //  _______________________________________________
    // |   			  					  _____________|
    // |   The big strip     			 |			   |
    // |		    					 |	the actual |
    // |								 |	canvas	   |
    // |_________________________________|_____________|
    //
    // The object will be on the canvas.
    // This technique is massively used in this method, and allows
    // abstraction of the screen position when rendering the parts.
    // Draws background
    Drawable bg = getBackground();
    if (bg == null) {
        canvas.drawColor(Color.WHITE);
    } else {
        bg.draw(canvas);
    }
    if (recycled) {
        return;
    }
    if (state != State.SHOWN) {
        return;
    }
    // Moves the canvas before drawing any element
    float currentXOffset = this.currentXOffset;
    float currentYOffset = this.currentYOffset;
    canvas.translate(currentXOffset, currentYOffset);
    // Draws thumbnails
    for (PagePart part : cacheManager.getThumbnails()) {
        drawPart(canvas, part);
    }
    // Draws parts
    for (PagePart part : cacheManager.getPageParts()) {
        drawPart(canvas, part);
    }
    // Draws the user layer
    if (onDrawListener != null) {
        canvas.translate(toCurrentScale(currentFilteredPage * optimalPageWidth), 0);
        //
        onDrawListener.onLayerDrawn(//
        canvas, //
        toCurrentScale(optimalPageWidth), toCurrentScale(optimalPageHeight), currentPage);
        canvas.translate(-toCurrentScale(currentFilteredPage * optimalPageWidth), 0);
    }
    // Restores the canvas position
    canvas.translate(-currentXOffset, -currentYOffset);
}

Example 5 with PagePart

use of com.github.barteksc.pdfviewer.model.PagePart in project AndroidPdfViewer by barteksc.

the class CacheManager method makeAFreeSpace.

private void makeAFreeSpace() {
    synchronized (passiveActiveLock) {
        while ((activeCache.size() + passiveCache.size()) >= CACHE_SIZE && !passiveCache.isEmpty()) {
            PagePart part = passiveCache.poll();
            part.getRenderedBitmap().recycle();
        }
        while ((activeCache.size() + passiveCache.size()) >= CACHE_SIZE && !activeCache.isEmpty()) {
            activeCache.poll().getRenderedBitmap().recycle();
        }
    }
}