Example usage for android.graphics Canvas drawBitmap

List of usage examples for android.graphics Canvas drawBitmap

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Introduction

In this page you can find the example usage for android.graphics Canvas drawBitmap.

Prototype

public void drawBitmap(@NonNull Bitmap bitmap, @Nullable Rect src, @NonNull Rect dst, @Nullable Paint paint)

Source Link

Document

Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle.

Usage

From source file:app.geochat.ui.widgets.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;//w ww .ja  v a  2  s .  co m
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

From source file:com.aprz.easy_iosched.ui.widget.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;/*  w  ww .j a v a  2 s. c  o m*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache.
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache.
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

From source file:com.dream.yzbb.wolfkiller.widget.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;//from w  w  w .j a  v  a 2  s  .  co  m
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache.
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed())
                    ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache.
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

From source file:cn.emagsoftware.ui.BugFixedSlidingPaneLayout.java

@Override
protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    boolean result;
    final int save = canvas.save(Canvas.CLIP_SAVE_FLAG);

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered.
        canvas.getClipBounds(mTmpRect);/* w  ww.j  a  va  2s  .  c o m*/
        mTmpRect.right = Math.min(mTmpRect.right, mSlideableView.getLeft());
        canvas.clipRect(mTmpRect);
    }

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && mSlideOffset > 0) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            final Bitmap cache = child.getDrawingCache();
            if (cache != null) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

From source file:android.support.design.widget.CustomCollapsingTextHelper.java

public void draw(Canvas canvas) {
    final int saveCount = canvas.save();

    if (mTextToDraw != null && mDrawTitle) {
        float x = mCurrentDrawX;
        float y = mCurrentDrawY;
        float subY = mCurrentSubY;
        final boolean drawTexture = mUseTexture && mExpandedTitleTexture != null;

        final float ascent;
        final float descent;
        if (drawTexture) {
            ascent = mTextureAscent * mScale;
            descent = mTextureDescent * mScale;
        } else {//from w w  w.  ja  va2  s.  c  o m
            ascent = mTitlePaint.ascent() * mScale;
            descent = mTitlePaint.descent() * mScale;
        }

        if (DEBUG_DRAW) {
            // Just a debug tool, which drawn a magenta rect in the text bounds
            canvas.drawRect(mCurrentBounds.left, y + ascent, mCurrentBounds.right, y + descent,
                    DEBUG_DRAW_PAINT);
        }

        if (drawTexture) {
            y += ascent;
        }

        //region modification
        final int saveCountSub = canvas.save();
        if (mSub != null) {
            if (mSubScale != 1f) {
                canvas.scale(mSubScale, mSubScale, x, subY);
            }
            canvas.drawText(mSub, 0, mSub.length(), x, subY, mSubPaint);
            canvas.restoreToCount(saveCountSub);
        }
        //endregion

        if (mScale != 1f) {
            canvas.scale(mScale, mScale, x, y);
        }

        if (drawTexture) {
            // If we should use a texture, draw it instead of text
            canvas.drawBitmap(mExpandedTitleTexture, x, y, mTexturePaint);
        } else {
            canvas.drawText(mTextToDraw, 0, mTextToDraw.length(), x, y, mTitlePaint);
        }
    }

    canvas.restoreToCount(saveCount);
}

From source file:com.abewy.android.apps.klyph.messenger.widget.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;/*w  ww  . ja v a  2s. co m*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            mCacheBitmap.recycle();
            // noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null && mMaskEnabled == true) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

From source file:com.conferenceengineer.android.iosched.ui.widget.BezelImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (mBounds == null) {
        return;/*from   w  w  w . ja  va2 s. c o m*/
    }

    int width = mBounds.width();
    int height = mBounds.height();

    if (width == 0 || height == 0) {
        return;
    }

    if (!mCacheValid || width != mCachedWidth || height != mCachedHeight) {
        // Need to redraw the cache
        if (width == mCachedWidth && height == mCachedHeight) {
            // Have a correct-sized bitmap cache already allocated. Just erase it.
            mCacheBitmap.eraseColor(0);
        } else {
            // Allocate a new bitmap with the correct dimensions.
            if (!isInEditMode()) {
                mCacheBitmap.recycle();
            }
            //noinspection AndroidLintDrawAllocation
            mCacheBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCachedWidth = width;
            mCachedHeight = height;
        }

        Canvas cacheCanvas = new Canvas(mCacheBitmap);
        if (mMaskDrawable != null) {
            int sc = cacheCanvas.save();
            mMaskDrawable.draw(cacheCanvas);
            mMaskedPaint.setColorFilter((mDesaturateOnPress && isPressed()) ? mDesaturateColorFilter : null);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else if (mDesaturateOnPress && isPressed()) {
            int sc = cacheCanvas.save();
            cacheCanvas.drawRect(0, 0, mCachedWidth, mCachedHeight, mBlackPaint);
            mMaskedPaint.setColorFilter(mDesaturateColorFilter);
            cacheCanvas.saveLayer(mBoundsF, mMaskedPaint,
                    Canvas.HAS_ALPHA_LAYER_SAVE_FLAG | Canvas.FULL_COLOR_LAYER_SAVE_FLAG);
            super.onDraw(cacheCanvas);
            cacheCanvas.restoreToCount(sc);
        } else {
            super.onDraw(cacheCanvas);
        }

        if (mBorderDrawable != null) {
            mBorderDrawable.draw(cacheCanvas);
        }
    }

    // Draw from cache
    canvas.drawBitmap(mCacheBitmap, mBounds.left, mBounds.top, null);
}

From source file:com.aigo.kt03airdemo.ui.view.ResideLayout.java

@Override
protected boolean drawChild(@NonNull Canvas canvas, @NonNull View child, long drawingTime) {
    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    boolean result;
    final int save = canvas.save(Canvas.ALL_SAVE_FLAG);

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered.
        canvas.scale(1.2f - 0.2f * mSlideOffset, 1.2f - 0.2f * mSlideOffset, child.getRight(), getHeight() / 2);
    } else {//from  ww  w.ja v a  2  s  .  c om
        assert mSlideableView != null;
        canvas.scale(1 - mSlideOffset / 3, 1 - mSlideOffset / 3, mSlideableView.getLeft(), getHeight() / 2);
        ViewCompat.setRotationY(child, -10 * mSlideOffset);
    }

    if (!lp.slideable && mSlideOffset == 0) {
        result = true;
    } else {
        if (Build.VERSION.SDK_INT >= 11) { // HC
            result = super.drawChild(canvas, child, drawingTime);
        } else {
            if (lp.dimWhenOffset && mSlideOffset > 0) {
                if (!child.isDrawingCacheEnabled()) {
                    child.setDrawingCacheEnabled(true);
                }
                final Bitmap cache = child.getDrawingCache();
                if (cache != null) {
                    canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                    result = false;
                } else {
                    Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                    result = super.drawChild(canvas, child, drawingTime);
                }
            } else {
                if (child.isDrawingCacheEnabled()) {
                    child.setDrawingCacheEnabled(false);
                }
                result = super.drawChild(canvas, child, drawingTime);
            }
        }
    }

    canvas.restoreToCount(save);

    return result;
}

From source file:com.bright.cloudutils.view.ResideLayout.java

@Override
protected boolean drawChild(@NonNull Canvas canvas, @NonNull View child, long drawingTime) {
    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    boolean result;
    final int save = canvas.save(Canvas.ALL_SAVE_FLAG);

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately
        // be covered.
        canvas.scale(1.2f - 0.2f * mSlideOffset, 1.2f - 0.2f * mSlideOffset, child.getRight(), getHeight() / 2);
    } else {/*from   w  w w .  j a v a2 s .  co  m*/
        assert mSlideableView != null;
        canvas.scale(1 - mSlideOffset / 3, 1 - mSlideOffset / 3, mSlideableView.getLeft(), getHeight() / 2);
        ViewCompat.setRotationY(child, -10 * mSlideOffset);
    }

    if (!lp.slideable && mSlideOffset == 0) {
        result = true;
    } else {
        if (Build.VERSION.SDK_INT >= 11) { // HC
            result = super.drawChild(canvas, child, drawingTime);
        } else {
            if (lp.dimWhenOffset && mSlideOffset > 0) {
                if (!child.isDrawingCacheEnabled()) {
                    child.setDrawingCacheEnabled(true);
                }
                final Bitmap cache = child.getDrawingCache();
                if (cache != null) {
                    canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                    result = false;
                } else {
                    Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                    result = super.drawChild(canvas, child, drawingTime);
                }
            } else {
                if (child.isDrawingCacheEnabled()) {
                    child.setDrawingCacheEnabled(false);
                }
                result = super.drawChild(canvas, child, drawingTime);
            }
        }
    }

    canvas.restoreToCount(save);

    return result;
}

From source file:com.example.SmartBoard.DrawingView.java

@Override
protected void onDraw(Canvas canvas) {

    drawCanvas.drawPath(drawPath, drawPaint);
    drawCanvas.drawPath(drawPathRecv, drawPaintSender);

    if (rectMode) {
        //draw rectangle
        drawPaint.setXfermode(null);/* ww w  .  jav  a  2 s .co m*/
        onDrawRectangle(canvas);
    } else if (circleMode) {
        drawPaint.setXfermode(null);
        onDrawCircle(canvas);
    } else if (lineMode) {
        drawPaint.setXfermode(null);
        onDrawLine(canvas);
    } else if (textMode) {
        drawPaint.setXfermode(null);
        onDrawText(canvas);
    } else if (dragMode && !dragFinished) {
        drawPaint.setXfermode(null);
        onDragDraw(canvas, dragX, dragY);
    } else if (colorDropperMode) {
        drawPaint.setXfermode(null);
        onDrawColorDropper(canvas, dropperX, dropperY);
    } else if (textSizeMode) {
        drawPaint.setXfermode(null);
    }

    canvas.drawBitmap(canvasBitmap, 0, 0, canvasPaint);

    //redraw objects

    Paint tempPaint = new Paint();
    tempPaint.setStyle(Paint.Style.STROKE);

    for (String key : textObjects.keySet()) {
        if (key.compareTo("") == 0) {
            continue;
        }
        JSONObject o = textObjects.get(key);

        tempPaint.setColor(o.optInt("color"));
        tempPaint.setStrokeWidth(o.optInt("size"));

        canvas.drawBitmap(mqtt.stringToBitmap(o.optString("textBitmap")), o.optInt("x"), o.optInt("y"),
                tempPaint);

    }

    for (String key : objectDrawables.keySet()) {
        //hashtable problems no time to explain. But it creates a duplicate of last item I add to the table.
        //So dont print duplicates which have empty string key values
        if (key.compareTo("") == 0) {
            continue;
        }
        JSONObject o = objectDrawables.get(key);

        String objectType = o.optString("type");
        tempPaint.setColor(o.optInt("color"));
        tempPaint.setStrokeWidth(o.optInt("size"));

        if (objectType.compareTo("Circle") == 0) {
            canvas.drawCircle(o.optInt("x"), o.optInt("y"), o.optInt("radius"), tempPaint);

        } else if (objectType.compareTo("Line") == 0) {
            canvas.drawLine(o.optInt("startx"), o.optInt("starty"), o.optInt("stopx"), o.optInt("stopy"),
                    tempPaint);

        } else if (objectType.compareTo("Rectangle") == 0) {
            canvas.drawRect(Rect.unflattenFromString(o.optString("dimens")), tempPaint);
        } else if (objectType.compareTo("Text") == 0) {
            //canvas.drawRect(Rect.unflattenFromString(o.optString("region")), drawPaint);
            canvas.drawBitmap(mqtt.stringToBitmap(o.optString("textBitmap")), o.optInt("x"), o.optInt("y"),
                    tempPaint);

        }
    }

}