holo look for pressed/focused workspace icons
Change-Id: Ia964c868afd200be3828e4397659391f857599e6
diff --git a/src/com/android/launcher2/BubbleTextView.java b/src/com/android/launcher2/BubbleTextView.java
index 995877b..6e2a58b 100644
--- a/src/com/android/launcher2/BubbleTextView.java
+++ b/src/com/android/launcher2/BubbleTextView.java
@@ -16,18 +16,19 @@
package com.android.launcher2;
+import com.android.launcher.R;
+
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
-import android.graphics.RectF;
+import android.graphics.Rect;
+import android.graphics.Region.Op;
import android.graphics.drawable.Drawable;
-import android.text.Layout;
import android.util.AttributeSet;
-
-import com.android.launcher.R;
+import android.view.MotionEvent;
/**
* TextView that draws a bubble behind the text. We cannot use a LineBackgroundSpan
@@ -44,16 +45,23 @@
static final float PADDING_H = 8.0f;
static final float PADDING_V = 3.0f;
- private final RectF mRect = new RectF();
private Paint mPaint;
private float mBubbleColorAlpha;
private int mPrevAlpha = -1;
+ private final HolographicOutlineHelper mOutlineHelper = new HolographicOutlineHelper();
+ private final Canvas mTempCanvas = new Canvas();
+ private final Rect mTempRect = new Rect();
+ private final Paint mTempPaint = new Paint();
+ private boolean mDidInvalidateForPressedState;
+ private Bitmap mPressedOrFocusedBackground;
+ private int mFocusedOutlineColor;
+ private int mFocusedGlowColor;
+ private int mPressedOutlineColor;
+ private int mPressedGlowColor;
+
private boolean mBackgroundSizeChanged;
private Drawable mBackground;
- private float mCornerRadius;
- private float mPaddingH;
- private float mPaddingV;
public BubbleTextView(Context context) {
super(context);
@@ -80,12 +88,13 @@
mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
mPaint.setColor(bubbleColor);
mBubbleColorAlpha = Color.alpha(bubbleColor) / 255.0f;
-
- final float scale = res.getDisplayMetrics().density;
- mCornerRadius = CORNER_RADIUS * scale;
- mPaddingH = PADDING_H * scale;
- //noinspection PointlessArithmeticExpression
- mPaddingV = PADDING_V * scale;
+ mFocusedOutlineColor =
+ getResources().getColor(R.color.workspace_item_focused_outline_color);
+ mFocusedGlowColor = getResources().getColor(R.color.workspace_item_focused_glow_color);
+ mPressedOutlineColor =
+ getResources().getColor(R.color.workspace_item_pressed_outline_color);
+ mPressedGlowColor =
+ getResources().getColor(R.color.workspace_item_pressed_glow_color);
}
protected int getCacheTopPadding() {
@@ -110,7 +119,6 @@
setText(info.title);
buildAndEnableCache();
setTag(info);
-
}
@Override
@@ -128,6 +136,28 @@
@Override
protected void drawableStateChanged() {
+ if (isPressed()) {
+ // In this case, we have already created the pressed outline on ACTION_DOWN,
+ // so we just need to do an invalidate to trigger draw
+ if (!mDidInvalidateForPressedState) {
+ invalidate();
+ }
+ } else {
+ // Otherwise, either clear the pressed/focused background, or create a background
+ // for the focused state
+ final boolean backgroundEmptyBefore = mPressedOrFocusedBackground == null;
+ mPressedOrFocusedBackground = null;
+ if (isFocused()) {
+ mPressedOrFocusedBackground = createGlowingOutline(
+ mTempCanvas, mFocusedGlowColor, mFocusedOutlineColor);
+ invalidate();
+ }
+ final boolean backgroundEmptyNow = mPressedOrFocusedBackground == null;
+ if (!backgroundEmptyBefore && backgroundEmptyNow) {
+ invalidate();
+ }
+ }
+
Drawable d = mBackground;
if (d != null && d.isStateful()) {
d.setState(getDrawableState());
@@ -135,8 +165,91 @@
super.drawableStateChanged();
}
+ /**
+ * Draw the View v into the given Canvas.
+ *
+ * @param v the view to draw
+ * @param destCanvas the canvas to draw on
+ * @param padding the horizontal and vertical padding to use when drawing
+ */
+ private void drawWithPadding(Canvas destCanvas, int padding) {
+ final Rect clipRect = mTempRect;
+ getDrawingRect(clipRect);
+
+ // adjust the clip rect so that we don't include the text label
+ clipRect.bottom =
+ getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V + getLayout().getLineTop(0);
+
+ // Draw the View into the bitmap.
+ // The translate of scrollX and scrollY is necessary when drawing TextViews, because
+ // they set scrollX and scrollY to large values to achieve centered text
+ destCanvas.save();
+ destCanvas.translate(-getScrollX() + padding / 2, -getScrollY() + padding / 2);
+ destCanvas.clipRect(clipRect, Op.REPLACE);
+ draw(destCanvas);
+ destCanvas.restore();
+ }
+
+ /**
+ * Returns a new bitmap to be used as the object outline, e.g. to visualize the drop location.
+ * Responsibility for the bitmap is transferred to the caller.
+ */
+ private Bitmap createGlowingOutline(Canvas canvas, int outlineColor, int glowColor) {
+ final int padding = HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS;
+ final Bitmap b = Bitmap.createBitmap(
+ getWidth() + padding, getHeight() + padding, Bitmap.Config.ARGB_8888);
+
+ canvas.setBitmap(b);
+ drawWithPadding(canvas, padding);
+ mOutlineHelper.applyExtraThickExpensiveOutlineWithBlur(b, canvas, glowColor, outlineColor);
+
+ return b;
+ }
+
+ @Override
+ public boolean onTouchEvent(MotionEvent event) {
+ // Call the superclass onTouchEvent first, because sometimes it changes the state to
+ // isPressed() on an ACTION_UP
+ boolean result = super.onTouchEvent(event);
+
+ switch (event.getAction()) {
+ case MotionEvent.ACTION_DOWN:
+ // So that the pressed outline is visible immediately when isPressed() is true,
+ // we pre-create it on ACTION_DOWN (it takes a small but perceptible amount of time
+ // to create it)
+ if (mPressedOrFocusedBackground == null) {
+ mPressedOrFocusedBackground = createGlowingOutline(
+ mTempCanvas, mPressedGlowColor, mPressedOutlineColor);
+ }
+ // Invalidate so the pressed state is visible, or set a flag so we know that we
+ // have to call invalidate as soon as the state is "pressed"
+ if (isPressed()) {
+ mDidInvalidateForPressedState = true;
+ invalidate();
+ } else {
+ mDidInvalidateForPressedState = false;
+ }
+ break;
+ case MotionEvent.ACTION_CANCEL:
+ case MotionEvent.ACTION_UP:
+ // If we've touched down and up on an item, and it's still not "pressed", then
+ // destroy the pressed outline
+ if (!isPressed()) {
+ mPressedOrFocusedBackground = null;
+ }
+ break;
+ }
+ return result;
+ }
+
@Override
public void draw(Canvas canvas) {
+ if (mPressedOrFocusedBackground != null && (isPressed() || isFocused())) {
+ canvas.drawBitmap(mPressedOrFocusedBackground,
+ mScrollX - HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS / 2,
+ mScrollY - HolographicOutlineHelper.MAX_OUTER_BLUR_RADIUS / 2,
+ mTempPaint);
+ }
if (isBuildingCache()) {
// We enhance the shadow by drawing the shadow twice
this.setShadowLayer(SHADOW_LARGE_RADIUS, 0.0f, SHADOW_Y_OFFSET, SHADOW_LARGE_COLOUR);
@@ -162,7 +275,6 @@
canvas.translate(-scrollX, -scrollY);
}
}
-
super.draw(canvas);
}
}