List of usage examples for android.graphics Canvas clipRect
public boolean clipRect(@NonNull Rect rect)
From source file:com.appunite.list.ListView.java
void drawOverscrollFooter(Canvas canvas, Drawable drawable, Rect bounds) { final int height = drawable.getMinimumHeight(); canvas.save();// ww w.j a v a 2 s .c o m canvas.clipRect(bounds); final int span = bounds.bottom - bounds.top; if (span < height) { bounds.bottom = bounds.top + height; } drawable.setBounds(bounds); drawable.draw(canvas); canvas.restore(); }
From source file:org.bangbang.support.v4.widget.HListView.java
/** * Draws a divider for the given child in the given bounds. */*from w w w . j a v a2 s . c om*/ * @param canvas The canvas to draw to. * @param bounds The bounds of the divider. * @param childIndex The index of child (of the View) above the divider. * This will be -1 if there is no child above the divider to be * drawn. */ void drawDivider(Canvas canvas, Rect bounds, int childIndex) { // This widget draws the same divider for all children final Drawable divider = mDivider; final boolean clipDivider = mClipDivider; if (!clipDivider) { divider.setBounds(bounds); } else { canvas.save(); canvas.clipRect(bounds); } divider.draw(canvas); if (clipDivider) { canvas.restore(); } }
From source file:com.raibow.yamahaspk.filtershow.imageshow.ImageShow.java
public void drawImageAndAnimate(Canvas canvas, Bitmap image) { if (image == null) { return;// w w w .jav a2 s. co m } MasterImage master = MasterImage.getImage(); Matrix m = master.computeImageToScreen(image, 0, false); if (m == null) { return; } canvas.save(); RectF d = new RectF(0, 0, image.getWidth(), image.getHeight()); m.mapRect(d); d.roundOut(mImageBounds); boolean showAnimatedImage = master.onGoingNewLookAnimation(); if (!showAnimatedImage && mDidStartAnimation) { // animation ended, but do we have the correct image to show? if (master.getPreset().equals(master.getCurrentPreset())) { // we do, let's stop showing the animated image mDidStartAnimation = false; MasterImage.getImage().resetAnimBitmap(); } else { showAnimatedImage = true; } } else if (showAnimatedImage) { mDidStartAnimation = true; } if (showAnimatedImage) { canvas.save(); // Animation uses the image before the change Bitmap previousImage = master.getPreviousImage(); Matrix mp = master.computeImageToScreen(previousImage, 0, false); RectF dp = new RectF(0, 0, previousImage.getWidth(), previousImage.getHeight()); mp.mapRect(dp); Rect previousBounds = new Rect(); dp.roundOut(previousBounds); float centerX = dp.centerX(); float centerY = dp.centerY(); boolean needsToDrawImage = true; if (master.getCurrentLookAnimation() == MasterImage.CIRCLE_ANIMATION) { float maskScale = MasterImage.getImage().getMaskScale(); if (maskScale >= 0.0f) { float maskW = sMask.getWidth() / 2.0f; float maskH = sMask.getHeight() / 2.0f; Point point = mActivity.hintTouchPoint(this); float maxMaskScale = 2 * Math.max(getWidth(), getHeight()) / Math.min(maskW, maskH); maskScale = maskScale * maxMaskScale; float x = point.x - maskW * maskScale; float y = point.y - maskH * maskScale; // Prepare the shader mShaderMatrix.reset(); mShaderMatrix.setScale(1.0f / maskScale, 1.0f / maskScale); mShaderMatrix.preTranslate(-x + mImageBounds.left, -y + mImageBounds.top); float scaleImageX = mImageBounds.width() / (float) image.getWidth(); float scaleImageY = mImageBounds.height() / (float) image.getHeight(); mShaderMatrix.preScale(scaleImageX, scaleImageY); mMaskPaint.reset(); mMaskPaint.setShader(createShader(image)); mMaskPaint.getShader().setLocalMatrix(mShaderMatrix); drawShadow(canvas, mImageBounds); // as needed canvas.drawBitmap(previousImage, m, mPaint); canvas.clipRect(mImageBounds); canvas.translate(x, y); canvas.scale(maskScale, maskScale); canvas.drawBitmap(sMask, 0, 0, mMaskPaint); needsToDrawImage = false; } } else if (master.getCurrentLookAnimation() == MasterImage.ROTATE_ANIMATION) { Rect d1 = computeImageBounds(master.getPreviousImage().getHeight(), master.getPreviousImage().getWidth()); Rect d2 = computeImageBounds(master.getPreviousImage().getWidth(), master.getPreviousImage().getHeight()); float finalScale = d1.width() / (float) d2.height(); finalScale = (1.0f * (1.0f - master.getAnimFraction())) + (finalScale * master.getAnimFraction()); canvas.rotate(master.getAnimRotationValue(), centerX, centerY); canvas.scale(finalScale, finalScale, centerX, centerY); } else if (master.getCurrentLookAnimation() == MasterImage.MIRROR_ANIMATION) { if (master.getCurrentFilterRepresentation() instanceof FilterMirrorRepresentation) { FilterMirrorRepresentation rep = (FilterMirrorRepresentation) master .getCurrentFilterRepresentation(); ImagePreset preset = master.getPreset(); ArrayList<FilterRepresentation> geometry = (ArrayList<FilterRepresentation>) preset .getGeometryFilters(); GeometryMathUtils.GeometryHolder holder = null; holder = GeometryMathUtils.unpackGeometry(geometry); if (holder.rotation.value() == 90 || holder.rotation.value() == 270) { if (rep.isHorizontal() && !rep.isVertical()) { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } else if (rep.isVertical() && !rep.isHorizontal()) { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } else if (rep.isHorizontal() && rep.isVertical()) { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } else { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } } else { if (rep.isHorizontal() && !rep.isVertical()) { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } else if (rep.isVertical() && !rep.isHorizontal()) { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } else if (rep.isHorizontal() && rep.isVertical()) { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } else { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } } } } if (needsToDrawImage) { drawShadow(canvas, previousBounds); // as needed canvas.drawBitmap(previousImage, mp, mPaint); } canvas.restore(); } else { drawShadow(canvas, mImageBounds); // as needed canvas.drawBitmap(image, m, mPaint); } canvas.restore(); }
From source file:com.android.gallery3d.filtershow.imageshow.ImageShow.java
public void drawImageAndAnimate(Canvas canvas, Bitmap image) { if (image == null) { return;//from www .ja va2s. c o m } MasterImage master = MasterImage.getImage(); Matrix m = master.computeImageToScreen(image, 0, false); if (m == null) { return; } canvas.save(); RectF d = new RectF(0, 0, image.getWidth(), image.getHeight()); m.mapRect(d); d.roundOut(mImageBounds); boolean showAnimatedImage = master.onGoingNewLookAnimation(); if (!showAnimatedImage && mDidStartAnimation) { // animation ended, but do we have the correct image to show? if (master.getPreset().equals(master.getCurrentPreset())) { // we do, let's stop showing the animated image mDidStartAnimation = false; MasterImage.getImage().resetAnimBitmap(); } else { showAnimatedImage = true; } } else if (showAnimatedImage) { mDidStartAnimation = true; } if (showAnimatedImage) { canvas.save(); // Animation uses the image before the change Bitmap previousImage = master.getPreviousImage(); Matrix mp = master.computeImageToScreen(previousImage, 0, false); RectF dp = new RectF(0, 0, previousImage.getWidth(), previousImage.getHeight()); mp.mapRect(dp); Rect previousBounds = new Rect(); dp.roundOut(previousBounds); float centerX = dp.centerX(); float centerY = dp.centerY(); boolean needsToDrawImage = true; if (master.getCurrentLookAnimation() == MasterImage.CIRCLE_ANIMATION) { float maskScale = MasterImage.getImage().getMaskScale(); if (maskScale >= 0.0f) { float maskW = sMask.getWidth() / 2.0f; float maskH = sMask.getHeight() / 2.0f; Point point = mActivity.hintTouchPoint(this); float maxMaskScale = 2 * Math.max(getWidth(), getHeight()) / Math.min(maskW, maskH); maskScale = maskScale * maxMaskScale; float x = point.x - maskW * maskScale; float y = point.y - maskH * maskScale; // Prepare the shader mShaderMatrix.reset(); mShaderMatrix.setScale(1.0f / maskScale, 1.0f / maskScale); mShaderMatrix.preTranslate(-x + mImageBounds.left, -y + mImageBounds.top); float scaleImageX = mImageBounds.width() / (float) image.getWidth(); float scaleImageY = mImageBounds.height() / (float) image.getHeight(); mShaderMatrix.preScale(scaleImageX, scaleImageY); mMaskPaint.reset(); Shader maskShader = createShader(image); maskShader.setLocalMatrix(mShaderMatrix); mMaskPaint.setShader(maskShader); drawShadow(canvas, mImageBounds); // as needed canvas.drawBitmap(previousImage, m, mPaint); canvas.clipRect(mImageBounds); canvas.translate(x, y); canvas.scale(maskScale, maskScale); canvas.drawBitmap(sMask, 0, 0, mMaskPaint); needsToDrawImage = false; } } else if (master.getCurrentLookAnimation() == MasterImage.ROTATE_ANIMATION) { Rect d1 = computeImageBounds(master.getPreviousImage().getHeight(), master.getPreviousImage().getWidth()); Rect d2 = computeImageBounds(master.getPreviousImage().getWidth(), master.getPreviousImage().getHeight()); float finalScale = d1.width() / (float) d2.height(); finalScale = (1.0f * (1.0f - master.getAnimFraction())) + (finalScale * master.getAnimFraction()); canvas.rotate(master.getAnimRotationValue(), centerX, centerY); canvas.scale(finalScale, finalScale, centerX, centerY); } else if (master.getCurrentLookAnimation() == MasterImage.MIRROR_ANIMATION) { if (master.getCurrentFilterRepresentation() instanceof FilterMirrorRepresentation) { FilterMirrorRepresentation rep = (FilterMirrorRepresentation) master .getCurrentFilterRepresentation(); ImagePreset preset = master.getPreset(); ArrayList<FilterRepresentation> geometry = (ArrayList<FilterRepresentation>) preset .getGeometryFilters(); GeometryMathUtils.GeometryHolder holder = null; holder = GeometryMathUtils.unpackGeometry(geometry); if (holder.rotation.value() == 90 || holder.rotation.value() == 270) { if (rep.isHorizontal() && !rep.isVertical()) { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } else if (rep.isVertical() && !rep.isHorizontal()) { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } else if (rep.isHorizontal() && rep.isVertical()) { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } else { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } } else { if (rep.isHorizontal() && !rep.isVertical()) { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } else if (rep.isVertical() && !rep.isHorizontal()) { canvas.scale(master.getAnimRotationValue(), 1, centerX, centerY); } else if (rep.isHorizontal() && rep.isVertical()) { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } else { canvas.scale(1, master.getAnimRotationValue(), centerX, centerY); } } } } if (needsToDrawImage) { drawShadow(canvas, previousBounds); // as needed canvas.drawBitmap(previousImage, mp, mPaint); } canvas.restore(); } else { drawShadow(canvas, mImageBounds); // as needed canvas.drawBitmap(image, m, mPaint); } canvas.restore(); }
From source file:de.tum.in.tumcampus.auxiliary.calendar.DayView.java
private void drawEventText(StaticLayout eventLayout, Rect rect, Canvas canvas, int top, int bottom, boolean center) { // drawEmptyRect(canvas, rect, 0xFFFF00FF); // for debugging int width = rect.right - rect.left; int height = rect.bottom - rect.top; // If the rectangle is too small for text, then return if (eventLayout == null || width < MIN_CELL_WIDTH_FOR_TEXT) { return;/* w w w . ja v a 2 s . com*/ } int totalLineHeight = 0; int lineCount = eventLayout.getLineCount(); for (int i = 0; i < lineCount; i++) { int lineBottom = eventLayout.getLineBottom(i); if (lineBottom <= height) { totalLineHeight = lineBottom; } else { break; } } // + 2 is small workaround when the font is slightly bigger then the rect. This will // still allow the text to be shown without overflowing into the other all day rects. if (totalLineHeight == 0 || rect.top > bottom || rect.top + totalLineHeight + 2 < top) { return; } // Use a StaticLayout to format the string. canvas.save(); // canvas.translate(rect.left, rect.top + (rect.bottom - rect.top / 2)); int padding = center ? (rect.bottom - rect.top - totalLineHeight) / 2 : 0; canvas.translate(rect.left, rect.top + padding); rect.left = 0; rect.right = width; rect.top = 0; rect.bottom = totalLineHeight; // There's a bug somewhere. If this rect is outside of a previous // cliprect, this becomes a no-op. What happens is that the text draw // past the event rect. The current fix is to not draw the staticLayout // at all if it is completely out of bound. canvas.clipRect(rect); eventLayout.draw(canvas); canvas.restore(); }