Example usage for android.graphics Canvas drawRect

List of usage examples for android.graphics Canvas drawRect

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Introduction

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

Prototype

public void drawRect(@NonNull Rect r, @NonNull Paint paint)

Source Link

Document

Draw the specified Rect using the specified Paint.

Usage

From source file:com.android.contacts.common.list.ShortcutIntentBuilder.java

/**
 * Generates a phone number shortcut icon. Adds an overlay describing the type of the phone
 * number, and if there is a photo also adds the call action icon.
 *///  ww w.j ava 2s. c  om
private Bitmap generatePhoneNumberIcon(Drawable photo, int phoneType, String phoneLabel, int actionResId) {
    final Resources r = mContext.getResources();
    final float density = r.getDisplayMetrics().density;

    Bitmap phoneIcon = ((BitmapDrawable) r.getDrawableForDensity(actionResId, mIconDensity)).getBitmap();

    Bitmap icon = generateQuickContactIcon(photo);
    Canvas canvas = new Canvas(icon);

    // Copy in the photo
    Paint photoPaint = new Paint();
    photoPaint.setDither(true);
    photoPaint.setFilterBitmap(true);
    Rect dst = new Rect(0, 0, mIconSize, mIconSize);

    // Create an overlay for the phone number type
    CharSequence overlay = Phone.getTypeLabel(r, phoneType, phoneLabel);

    if (overlay != null) {
        TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
        textPaint.setTextSize(r.getDimension(R.dimen.shortcut_overlay_text_size));
        textPaint.setColor(r.getColor(R.color.textColorIconOverlay));
        textPaint.setShadowLayer(4f, 0, 2f, r.getColor(R.color.textColorIconOverlayShadow));

        final FontMetricsInt fmi = textPaint.getFontMetricsInt();

        // First fill in a darker background around the text to be drawn
        final Paint workPaint = new Paint();
        workPaint.setColor(mOverlayTextBackgroundColor);
        workPaint.setStyle(Paint.Style.FILL);
        final int textPadding = r.getDimensionPixelOffset(R.dimen.shortcut_overlay_text_background_padding);
        final int textBandHeight = (fmi.descent - fmi.ascent) + textPadding * 2;
        dst.set(0, mIconSize - textBandHeight, mIconSize, mIconSize);
        canvas.drawRect(dst, workPaint);

        overlay = TextUtils.ellipsize(overlay, textPaint, mIconSize, TruncateAt.END);
        final float textWidth = textPaint.measureText(overlay, 0, overlay.length());
        canvas.drawText(overlay, 0, overlay.length(), (mIconSize - textWidth) / 2,
                mIconSize - fmi.descent - textPadding, textPaint);
    }

    // Draw the phone action icon as an overlay
    Rect src = new Rect(0, 0, phoneIcon.getWidth(), phoneIcon.getHeight());
    int iconWidth = icon.getWidth();
    dst.set(iconWidth - ((int) (20 * density)), -1, iconWidth, ((int) (19 * density)));
    canvas.drawBitmap(phoneIcon, src, dst, photoPaint);

    canvas.setBitmap(null);

    return icon;
}

From source file:com.silentcircle.contacts.list.ShortcutIntentBuilder.java

/**
 * Generates a phone number shortcut icon. Adds an overlay describing the type of the phone
 * number, and if there is a photo also adds the call action icon.
 *//*from   ww  w .j a v a  2s.  c  om*/
private Bitmap generatePhoneNumberIcon(Drawable photo, int phoneType, String phoneLabel, int actionResId) {
    final Resources r = mContext.getResources();
    final float density = r.getDisplayMetrics().density;

    Bitmap phoneIcon = ((BitmapDrawable) r.getDrawableForDensity(actionResId, mIconDensity)).getBitmap();

    Bitmap icon = generateQuickContactIcon(photo);
    Canvas canvas = new Canvas(icon);

    // Copy in the photo
    Paint photoPaint = new Paint();
    photoPaint.setDither(true);
    photoPaint.setFilterBitmap(true);
    Rect dst = new Rect(0, 0, mIconSize, mIconSize);

    // Create an overlay for the phone number type
    CharSequence overlay = Phone.getTypeLabel(r, phoneType, phoneLabel);

    if (overlay != null) {
        TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
        textPaint.setTextSize(r.getDimension(R.dimen.shortcut_overlay_text_size));
        textPaint.setColor(ContextCompat.getColor(mContext, R.color.textColorIconOverlay));
        textPaint.setShadowLayer(4f, 0, 2f,
                ContextCompat.getColor(mContext, R.color.textColorIconOverlayShadow));

        final FontMetricsInt fmi = textPaint.getFontMetricsInt();

        // First fill in a darker background around the text to be drawn
        final Paint workPaint = new Paint();
        workPaint.setColor(mOverlayTextBackgroundColor);
        workPaint.setStyle(Paint.Style.FILL);
        final int textPadding = r.getDimensionPixelOffset(R.dimen.shortcut_overlay_text_background_padding);
        final int textBandHeight = (fmi.descent - fmi.ascent) + textPadding * 2;
        dst.set(0, mIconSize - textBandHeight, mIconSize, mIconSize);
        canvas.drawRect(dst, workPaint);

        overlay = TextUtils.ellipsize(overlay, textPaint, mIconSize, TruncateAt.END);
        final float textWidth = textPaint.measureText(overlay, 0, overlay.length());
        canvas.drawText(overlay, 0, overlay.length(), (mIconSize - textWidth) / 2,
                mIconSize - fmi.descent - textPadding, textPaint);
    }

    // Draw the phone action icon as an overlay
    Rect src = new Rect(0, 0, phoneIcon.getWidth(), phoneIcon.getHeight());
    int iconWidth = icon.getWidth();
    dst.set(iconWidth - ((int) (20 * density)), -1, iconWidth, ((int) (19 * density)));
    canvas.drawBitmap(phoneIcon, src, dst, photoPaint);

    canvas.setBitmap(null);

    return icon;
}

From source file:com.hanbing.library.android.view.CustomTabLayout23.java

protected void onDrawIndicator(Canvas canvas, Paint paint, LinearLayout parent, Rect rect) {
    canvas.drawRect(rect, paint);
}

From source file:com.android.contacts.ShortcutIntentBuilder.java

/**
 * Generates a phone number shortcut icon. Adds an overlay describing the type of the phone
 * number, and if there is a photo also adds the call action icon.
 *//*from w  w w  .j  a  v a  2  s .com*/
private Bitmap generatePhoneNumberIcon(Drawable photo, int phoneType, String phoneLabel, int actionResId) {
    final Resources r = mContext.getResources();
    final float density = r.getDisplayMetrics().density;

    final Drawable phoneDrawable = r.getDrawableForDensity(actionResId, mIconDensity);
    // These icons have the same height and width so either is fine for the size.
    final Bitmap phoneIcon = BitmapUtil.drawableToBitmap(phoneDrawable, phoneDrawable.getIntrinsicHeight());

    Bitmap icon = generateQuickContactIcon(photo);
    Canvas canvas = new Canvas(icon);

    // Copy in the photo
    Paint photoPaint = new Paint();
    photoPaint.setDither(true);
    photoPaint.setFilterBitmap(true);
    Rect dst = new Rect(0, 0, mIconSize, mIconSize);

    // Create an overlay for the phone number type if we're pre-O. O created shortcuts have the
    // app badge which overlaps the type overlay.
    CharSequence overlay = Phone.getTypeLabel(r, phoneType, phoneLabel);
    if (!BuildCompat.isAtLeastO() && overlay != null) {
        TextPaint textPaint = new TextPaint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG);
        textPaint.setTextSize(r.getDimension(R.dimen.shortcut_overlay_text_size));
        textPaint.setColor(r.getColor(R.color.textColorIconOverlay));
        textPaint.setShadowLayer(4f, 0, 2f, r.getColor(R.color.textColorIconOverlayShadow));

        final FontMetricsInt fmi = textPaint.getFontMetricsInt();

        // First fill in a darker background around the text to be drawn
        final Paint workPaint = new Paint();
        workPaint.setColor(mOverlayTextBackgroundColor);
        workPaint.setStyle(Paint.Style.FILL);
        final int textPadding = r.getDimensionPixelOffset(R.dimen.shortcut_overlay_text_background_padding);
        final int textBandHeight = (fmi.descent - fmi.ascent) + textPadding * 2;
        dst.set(0, mIconSize - textBandHeight, mIconSize, mIconSize);
        canvas.drawRect(dst, workPaint);

        overlay = TextUtils.ellipsize(overlay, textPaint, mIconSize, TruncateAt.END);
        final float textWidth = textPaint.measureText(overlay, 0, overlay.length());
        canvas.drawText(overlay, 0, overlay.length(), (mIconSize - textWidth) / 2,
                mIconSize - fmi.descent - textPadding, textPaint);
    }

    // Draw the phone action icon as an overlay
    int iconWidth = icon.getWidth();
    if (BuildCompat.isAtLeastO()) {
        // On O we need to calculate where the phone icon goes slightly differently. The whole
        // canvas area is 108dp, a centered circle with a diameter of 66dp is the "safe zone".
        // So we start the drawing the phone icon at
        // 108dp - 21 dp (distance from right edge of safe zone to the edge of the canvas)
        // - 24 dp (size of the phone icon) on the x axis (left)
        // The y axis is simply 21dp for the distance to the safe zone (top).
        // See go/o-icons-eng for more details and a handy picture.
        final int left = (int) (mIconSize - (45 * density));
        final int top = (int) (21 * density);
        canvas.drawBitmap(phoneIcon, left, top, photoPaint);
    } else {
        dst.set(iconWidth - ((int) (20 * density)), -1, iconWidth, ((int) (19 * density)));
        canvas.drawBitmap(phoneIcon, null, dst, photoPaint);
    }

    canvas.setBitmap(null);
    return icon;
}

From source file:com.wanikani.androidnotifier.graph.HistogramPlot.java

protected void drawBar(Canvas canvas, Samples bar, float left, float right) {
    long base, height;
    float top, tbl;
    Paint lpaint;/*from   ww w.jav  a2  s .  co  m*/
    Paint paint;
    Path path;
    RectF rect;

    top = vp.getY(vp.yMax);
    base = 0;
    for (Sample sample : bar.samples) {
        if (sample.value > 0) {
            height = sample.value;

            if (base > vp.yMax)
                ;
            else if (base + height > vp.yMax) {
                path = new Path();
                path.moveTo(left, vp.getY(base));
                path.lineTo(left, top);
                path.lineTo(left + (right - left) / 3, top - 10);
                path.lineTo(left + (right - left) * 2 / 3, top + 5);
                path.lineTo(right, top);
                path.lineTo(right, vp.getY(base));
                path.close();
                canvas.drawPath(path, pas.series.get(sample.series));
            } else {
                rect = new RectF(left, vp.getY(base + height), right, vp.getY(base));
                rect.intersect(meas.plotArea);
                paint = pas.series.get(sample.series);
                paint.setStyle(Style.FILL);
                canvas.drawRect(rect, paint);
                paint.setStyle(Style.STROKE);
                canvas.drawRect(rect, paint);
            }
            base += height;
        }
    }

    if (base <= vp.yMax) {
        lpaint = pas.levelupPaint;
        tbl = vp.getY(base) - meas.headroom / 2;
    } else {
        lpaint = pas.levelupPaintInside;
        tbl = vp.getY(vp.yMax) + meas.margin;
    }

    if (base > 0 && drawTotal)
        canvas.drawText(Long.toString(base), (left + right) / 2, tbl, lpaint);
}

From source file:com.yanzhenjie.durban.view.OverlayView.java

/**
 * This method draws crop bounds (empty rectangle)
 * and crop guidelines (vertical and horizontal lines inside the crop bounds) if needed.
 *
 * @param canvas - valid canvas object//  www.  j a  v a2s.  co m
 */
protected void drawCropGrid(@NonNull Canvas canvas) {
    if (mShowCropGrid) {
        if (mGridPoints == null && !mCropViewRect.isEmpty()) {

            mGridPoints = new float[(mCropGridRowCount) * 4 + (mCropGridColumnCount) * 4];

            int index = 0;
            for (int i = 0; i < mCropGridRowCount; i++) {
                mGridPoints[index++] = mCropViewRect.left;
                mGridPoints[index++] = (mCropViewRect.height()
                        * (((float) i + 1.0f) / (float) (mCropGridRowCount + 1))) + mCropViewRect.top;
                mGridPoints[index++] = mCropViewRect.right;
                mGridPoints[index++] = (mCropViewRect.height()
                        * (((float) i + 1.0f) / (float) (mCropGridRowCount + 1))) + mCropViewRect.top;
            }

            for (int i = 0; i < mCropGridColumnCount; i++) {
                mGridPoints[index++] = (mCropViewRect.width()
                        * (((float) i + 1.0f) / (float) (mCropGridColumnCount + 1))) + mCropViewRect.left;
                mGridPoints[index++] = mCropViewRect.top;
                mGridPoints[index++] = (mCropViewRect.width()
                        * (((float) i + 1.0f) / (float) (mCropGridColumnCount + 1))) + mCropViewRect.left;
                mGridPoints[index++] = mCropViewRect.bottom;
            }
        }

        if (mGridPoints != null)
            canvas.drawLines(mGridPoints, mCropGridPaint);
    }

    if (mShowCropFrame)
        canvas.drawRect(mCropViewRect, mCropFramePaint);

    if (mFreestyleCropMode != FREESTYLE_CROP_MODE_DISABLE) {
        canvas.save();

        mTempRect.set(mCropViewRect);
        mTempRect.inset(mCropRectCornerTouchAreaLineLength, -mCropRectCornerTouchAreaLineLength);
        canvas.clipRect(mTempRect, Region.Op.DIFFERENCE);

        mTempRect.set(mCropViewRect);
        mTempRect.inset(-mCropRectCornerTouchAreaLineLength, mCropRectCornerTouchAreaLineLength);
        canvas.clipRect(mTempRect, Region.Op.DIFFERENCE);

        canvas.drawRect(mCropViewRect, mCropFrameCornersPaint);

        canvas.restore();
    }
}

From source file:com.hippo.recyclerview.addons.LinearDividerItemDecoration.java

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    RecyclerView.Adapter adapter = parent.getAdapter();
    if (adapter == null) {
        return;/*from  w  w  w.j a  v a  2 s  .  co  m*/
    }

    int itemCount = adapter.getItemCount();

    if (orientation == VERTICAL) {
        final boolean isRtl = ViewCompat.getLayoutDirection(parent) == ViewCompat.LAYOUT_DIRECTION_RTL;
        int paddingLeft;
        int paddingRight;
        if (isRtl) {
            paddingLeft = paddingEnd;
            paddingRight = paddingStart;
        } else {
            paddingLeft = paddingStart;
            paddingRight = paddingEnd;
        }

        final int left = parent.getPaddingLeft() + paddingLeft;
        final int right = parent.getWidth() - parent.getPaddingRight() - paddingRight;
        final int childCount = parent.getChildCount();

        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            final RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int position = parent.getChildLayoutPosition(child);

            boolean show;
            if (showDividerHelper != null) {
                show = showDividerHelper.showDivider(position + 1);
            } else {
                show = (position != itemCount - 1) || showLastDivider;
            }
            if (show) {
                int top = child.getBottom() + lp.bottomMargin;
                if (overlap) {
                    top -= thickness;
                }
                final int bottom = top + thickness;
                rect.set(left, top, right, bottom);
                c.drawRect(rect, paint);
            }

            if (position == 0) {
                if (showDividerHelper != null) {
                    show = showDividerHelper.showDivider(0);
                } else {
                    show = showFirstDivider;
                }
                if (show) {
                    int bottom = child.getTop() + lp.topMargin;
                    if (overlap) {
                        bottom += thickness;
                    }
                    final int top = bottom - thickness;
                    rect.set(left, top, right, bottom);
                    c.drawRect(rect, paint);
                }
            }
        }
    } else {
        final int top = parent.getPaddingTop() + paddingStart;
        final int bottom = parent.getHeight() - parent.getPaddingBottom() - paddingEnd;
        final int childCount = parent.getChildCount();

        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            final RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int position = parent.getChildLayoutPosition(child);

            boolean show;
            if (showDividerHelper != null) {
                show = showDividerHelper.showDivider(position + 1);
            } else {
                show = (position != itemCount - 1) || showLastDivider;
            }
            if (show) {
                int left = child.getRight() + lp.rightMargin;
                if (overlap) {
                    left -= thickness;
                }
                final int right = left + thickness;
                rect.set(left, top, right, bottom);
                c.drawRect(rect, paint);
            }

            if (position == 0) {
                if (showDividerHelper != null) {
                    show = showDividerHelper.showDivider(0);
                } else {
                    show = showFirstDivider;
                }
                if (show) {
                    int right = child.getLeft() + lp.leftMargin;
                    if (overlap) {
                        right += thickness;
                    }
                    final int left = right - thickness;
                    rect.set(left, top, right, bottom);
                    c.drawRect(rect, paint);
                }
            }
        }
    }
}

From source file:com.hippo.widget.recyclerview.LinearDividerItemDecoration.java

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    RecyclerView.Adapter adapter = parent.getAdapter();
    if (adapter == null) {
        return;//  w ww. j a va2 s  .  co  m
    }

    int itemCount = adapter.getItemCount();
    boolean overlap = mOverlap;

    if (mOrientation == VERTICAL) {
        final boolean isRtl = ViewCompat.getLayoutDirection(parent) == ViewCompat.LAYOUT_DIRECTION_RTL;
        int mPaddingLeft;
        int mPaddingRight;
        if (isRtl) {
            mPaddingLeft = mPaddingEnd;
            mPaddingRight = mPaddingStart;
        } else {
            mPaddingLeft = mPaddingStart;
            mPaddingRight = mPaddingEnd;
        }

        final int left = parent.getPaddingLeft() + mPaddingLeft;
        final int right = parent.getWidth() - parent.getPaddingRight() - mPaddingRight;
        final int childCount = parent.getChildCount();

        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            final RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int position = parent.getChildLayoutPosition(child);

            boolean show;
            if (mShowDividerHelper != null) {
                show = mShowDividerHelper.showDivider(position + 1);
            } else {
                show = position != itemCount - 1 || mShowLastDivider;
            }
            if (show) {
                int top = child.getBottom() + lp.bottomMargin;
                if (overlap) {
                    top -= mThickness;
                }
                final int bottom = top + mThickness;
                mRect.set(left, top, right, bottom);
                c.drawRect(mRect, mPaint);
            }

            if (position == 0) {
                if (mShowDividerHelper != null) {
                    show = mShowDividerHelper.showDivider(0);
                } else {
                    show = mShowFirstDivider;
                }
                if (show) {
                    int bottom = child.getTop() + lp.topMargin;
                    if (overlap) {
                        bottom += mThickness;
                    }
                    final int top = bottom - mThickness;
                    mRect.set(left, top, right, bottom);
                    c.drawRect(mRect, mPaint);
                }
            }
        }
    } else {
        final int top = parent.getPaddingTop() + mPaddingStart;
        final int bottom = parent.getHeight() - parent.getPaddingBottom() - mPaddingEnd;
        final int childCount = parent.getChildCount();

        for (int i = 0; i < childCount; i++) {
            final View child = parent.getChildAt(i);
            final RecyclerView.LayoutParams lp = (RecyclerView.LayoutParams) child.getLayoutParams();
            final int position = parent.getChildLayoutPosition(child);

            boolean show;
            if (mShowDividerHelper != null) {
                show = mShowDividerHelper.showDivider(position + 1);
            } else {
                show = position != itemCount - 1 || mShowLastDivider;
            }
            if (show) {
                int left = child.getRight() + lp.rightMargin;
                if (overlap) {
                    left -= mThickness;
                }
                final int right = left + mThickness;
                mRect.set(left, top, right, bottom);
                c.drawRect(mRect, mPaint);
            }

            if (position == 0) {
                if (mShowDividerHelper != null) {
                    show = mShowDividerHelper.showDivider(0);
                } else {
                    show = mShowFirstDivider;
                }
                if (show) {
                    int right = child.getLeft() + lp.leftMargin;
                    if (overlap) {
                        right += mThickness;
                    }
                    final int left = right - mThickness;
                    mRect.set(left, top, right, bottom);
                    c.drawRect(mRect, mPaint);
                }
            }
        }
    }
}

From source file:ca.mymenuapp.ui.widgets.SlidingUpPanelLayout.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);

    boolean drawScrim = false;

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered.
        canvas.getClipBounds(mTmpRect);//from  w w  w  .  j av  a2  s  . c o m
        if (mIsSlidingUp) {
            mTmpRect.bottom = Math.min(mTmpRect.bottom, mSlideableView.getTop());
        } else {
            mTmpRect.top = Math.max(mTmpRect.top, mSlideableView.getBottom());
        }
        canvas.clipRect(mTmpRect);
        if (mSlideOffset < 1) {
            drawScrim = true;
        }
    }

    result = super.drawChild(canvas, child, drawingTime);
    canvas.restoreToCount(save);

    if (drawScrim) {
        final int baseAlpha = (mCoveredFadeColor & 0xff000000) >>> 24;
        final int imag = (int) (baseAlpha * (1 - mSlideOffset));
        final int color = imag << 24 | (mCoveredFadeColor & 0xffffff);
        mCoveredFadePaint.setColor(color);
        canvas.drawRect(mTmpRect, mCoveredFadePaint);
    }

    return result;
}