Example usage for android.graphics Canvas clipRect

Introduction

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

Prototype

public boolean clipRect(int left, int top, int right, int bottom) 

Source Link

Document

Intersect the current clip with the specified rectangle, which is expressed in local coordinates.

Usage

From source file:com.ziv.recyclerview.gridview.vertical.DividerGridItemDecoration.java

/**
 * Draw vertical divider//from   ww  w .j a va 2s .co m
 *
 * @param canvas Canvas to draw into
 * @param parent RecyclerView this ItemDecoration is drawing into
 */
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void drawVertical(Canvas canvas, RecyclerView parent) {
    canvas.save();
    final int left;
    final int right;
    if (parent.getClipToPadding()) {
        left = parent.getPaddingLeft();
        right = parent.getWidth() - parent.getPaddingRight();
        canvas.clipRect(left, parent.getPaddingTop(), right, parent.getHeight() - parent.getPaddingBottom());
    } else {
        left = 0;
        right = parent.getWidth();
    }

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        parent.getDecoratedBoundsWithMargins(child, mBounds);
        final int bottom = mBounds.bottom + Math.round(ViewCompat.getTranslationY(child));
        final int top = bottom - mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(canvas);
    }
    canvas.restore();
}

---

From source file:com.ziv.recyclerview.gridview.vertical.DividerGridItemDecoration.java

/**
 * Draw horizontal divider//from w w  w . j  ava2  s  .com
 *
 * @param canvas Canvas to draw into
 * @param parent RecyclerView this ItemDecoration is drawing into
 */
@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
private void drawHorizontal(Canvas canvas, RecyclerView parent) {
    canvas.save();
    final int top;
    final int bottom;
    if (parent.getClipToPadding()) {
        top = parent.getPaddingTop();
        bottom = parent.getHeight() - parent.getPaddingBottom();
        canvas.clipRect(parent.getPaddingLeft(), top, parent.getWidth() - parent.getPaddingRight(), bottom);
    } else {
        top = 0;
        bottom = parent.getHeight();
    }

    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        parent.getLayoutManager().getDecoratedBoundsWithMargins(child, mBounds);
        final int right = mBounds.right + Math.round(ViewCompat.getTranslationX(child));
        final int left = right - mDivider.getIntrinsicWidth();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(canvas);
    }
    canvas.restore();
}

---

From source file:com.ameron32.apps.tapnotes._trial.ui.CollapsingTitleLayout.java

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

    final int toolbarHeight = mToolbar.getHeight();
    canvas.clipRect(0, 0, canvas.getWidth(), interpolate(canvas.getHeight(), toolbarHeight, mScrollOffset));

    // Now call super and let it draw the background, etc
    super.draw(canvas);

    if (mTitleToDraw != null) {
        float x = mTextLeft;
        float y = mTextTop;

        final float ascent = mTextPaint.ascent() * mScale;
        final float descent = mTextPaint.descent() * mScale;
        final float h = descent - ascent;

        if (DEBUG_DRAW) {
            // Just a debug tool, which drawn a Magneta rect in the text bounds
            canvas.drawRect(mTextLeft, y - h + descent, mTextRight, y + descent, DEBUG_DRAW_PAINT);
        }// ww  w .j  a  v a  2 s  .  c  om

        if (mUseTexture) {
            y = y - h + descent;
        }

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

        if (mUseTexture && mExpandedTitleTexture != null) {
            // If we should use a texture, draw it instead of text
            canvas.drawBitmap(mExpandedTitleTexture, x, y, mTexturePaint);
        } else {
            canvas.drawText(mTitleToDraw, x, y, mTextPaint);
        }
    }

    canvas.restoreToCount(saveCount);
}

---

From source file:com.android.launcher3.allapps.AllAppsRecyclerView.java

@Override
public void onDraw(Canvas c) {
    // Draw the background
    if (mEmptySearchBackground != null && mEmptySearchBackground.getAlpha() > 0) {
        c.clipRect(mBackgroundPadding.left, mBackgroundPadding.top, getWidth() - mBackgroundPadding.right,
                getHeight() - mBackgroundPadding.bottom);

        mEmptySearchBackground.draw(c);/*w ww.ja  v  a  2 s.c  o  m*/
    }

    super.onDraw(c);
}

---

From source file:me.lizheng.deckview.views.DeckChildViewHeader.java

@SuppressLint("DrawAllocation")
@Override/*from   ww w  . ja  v a 2  s.  c  o  m*/
protected void onDraw(Canvas canvas) {
    // Draw the highlight at the top edge (but put the bottom edge just out of view)
    float offset = (float) Math.ceil(mConfig.taskViewHighlightPx / 2f);
    float radius = mConfig.taskViewRoundedCornerRadiusPx;
    int count = canvas.save(Canvas.CLIP_SAVE_FLAG);
    canvas.clipRect(0, 0, getMeasuredWidth(), getMeasuredHeight());
    canvas.drawRoundRect(
            new RectF(-offset, 0f, (float) getMeasuredWidth() + offset, getMeasuredHeight() + radius), radius,
            radius, sHighlightPaint);
    canvas.restoreToCount(count);
}

---

From source file:au.com.zacher.popularmovies.activity.layout.CollapsingTitleLayout.java

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

    final int toolbarHeight = this.mToolbar.getHeight();
    canvas.clipRect(0, 0, canvas.getWidth(),
            interpolate(canvas.getHeight(), toolbarHeight, this.mScrollOffset));

    // Now call super and let it draw the background, etc
    super.draw(canvas);

    if (this.mTitleToDraw != null) {
        float x = this.mTextLeft;
        float y = this.mTextTop;

        final float ascent = this.mTextPaint.ascent() * this.mScale;
        final float descent = this.mTextPaint.descent() * this.mScale;
        final float h = descent - ascent;

        if (DEBUG_DRAW) {
            // Just a debug tool, which drawn a Magneta rect in the text bounds
            canvas.drawRect(this.mTextLeft, y - h + descent, this.mTextRight, y + descent, DEBUG_DRAW_PAINT);
        }//from   w ww. j  a  v  a2s .c  o  m

        if (this.mUseTexture) {
            y = y - h + descent;
        }

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

        if (this.mUseTexture && this.mExpandedTitleTexture != null) {
            // If we should use a texture, draw it instead of text
            canvas.drawBitmap(this.mExpandedTitleTexture, x, y, this.mTexturePaint);
        } else {
            canvas.drawText(this.mTitleToDraw, x, y, this.mTextPaint);
        }
    }

    canvas.restoreToCount(saveCount);
}

---

From source file:vc908.stickerfactory.ui.advancedrecyclerview.swipeable.RemovingItemDecorator.java

private void fillSwipingItemBackground(Canvas c, Drawable drawable, int height) {
    final Rect bounds = mSwipingItemBounds;
    final int translationX = mInitialTranslationX;
    final int translationY = mTranslationY;

    if (height < 0) {
        height = bounds.height();/*w  w  w .j a  v  a2 s.  co m*/
    }

    if ((height == 0) || (drawable == null)) {
        return;
    }

    final int savedCount = c.save();

    c.clipRect(bounds.left + translationX, bounds.top + translationY, bounds.right + translationX,
            bounds.top + translationY + height);

    // c.drawColor(0xffff0000); // <-- debug

    c.translate(bounds.left + translationX, bounds.top + translationY - (bounds.height() - height) / 2);
    drawable.setBounds(0, 0, bounds.width(), bounds.height());

    drawable.draw(c);

    c.restoreToCount(savedCount);
}

---

From source file:com.amitupadhyay.aboutexample.ui.widget.CollapsingTitleLayout.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    if (lineCount == 1) {
        collapsingText.draw(canvas);/*from   ww w .ja va  2s . c o m*/
    } else {
        float x = titleInsetStart;
        float y = Math.max(textTop - scrollOffset, titleInsetTop);
        canvas.translate(x, y);
        canvas.clipRect(0, 0, getWidth() - titleInsetStart - titleInsetEnd,
                Math.max(getHeight() - scrollOffset, collapsedHeight) - y);
        layout.draw(canvas);
    }
}

---

From source file:com.yanzhenjie.recyclerview.swipe.widget.StickyNestedScrollView.java

@Override
protected void dispatchDraw(Canvas canvas) {
    super.dispatchDraw(canvas);
    if (currentlyStickingView != null) {
        canvas.save();//from  w w w  . jav  a  2 s . c  o  m
        canvas.translate(getPaddingLeft() + stickyViewLeftOffset,
                getScrollY() + stickyViewTopOffset + (clippingToPadding ? getPaddingTop() : 0));
        canvas.clipRect(0, (clippingToPadding ? -stickyViewTopOffset : 0), getWidth() - stickyViewLeftOffset,
                currentlyStickingView.getHeight() + mShadowHeight + 1);
        if (mShadowDrawable != null) {
            int left = 0;
            int top = currentlyStickingView.getHeight();
            int right = currentlyStickingView.getWidth();
            int bottom = currentlyStickingView.getHeight() + mShadowHeight;
            mShadowDrawable.setBounds(left, top, right, bottom);
            mShadowDrawable.draw(canvas);
        }
        canvas.clipRect(0, (clippingToPadding ? -stickyViewTopOffset : 0), getWidth(),
                currentlyStickingView.getHeight());
        if (getStringTagForView(currentlyStickingView).contains(FLAG_HASTRANSPARENCY)) {
            showView(currentlyStickingView);
            currentlyStickingView.draw(canvas);
            hideView(currentlyStickingView);
        } else {
            currentlyStickingView.draw(canvas);
        }
        canvas.restore();
    }
}

---

From source file:com.github.shareme.gwsmaterialuikit.library.advancerv.draggable.DraggingItemDecorator.java

private Bitmap createDraggingItemImage(View v, NinePatchDrawable shadow) {
    int width = v.getWidth() + mShadowPadding.left + mShadowPadding.right;
    int height = v.getHeight() + mShadowPadding.top + mShadowPadding.bottom;

    final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);

    final Canvas canvas = new Canvas(bitmap);

    if (shadow != null) {
        shadow.setBounds(0, 0, width, height);
        shadow.draw(canvas);//from   www .ja va  2s  .  c  om
    }

    final int savedCount = canvas.save(Canvas.CLIP_SAVE_FLAG | Canvas.MATRIX_SAVE_FLAG);
    // NOTE: Explicitly set clipping rect. This is required on Gingerbread.
    canvas.clipRect(mShadowPadding.left, mShadowPadding.top, width - mShadowPadding.right,
            height - mShadowPadding.bottom);
    canvas.translate(mShadowPadding.left, mShadowPadding.top);
    v.draw(canvas);
    canvas.restoreToCount(savedCount);

    return bitmap;
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• »