diff options
Diffstat (limited to 'src/com/android/gallery3d/ui/AbstractSlotRenderer.java')
-rw-r--r-- | src/com/android/gallery3d/ui/AbstractSlotRenderer.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/ui/AbstractSlotRenderer.java b/src/com/android/gallery3d/ui/AbstractSlotRenderer.java new file mode 100644 index 000000000..729439dc3 --- /dev/null +++ b/src/com/android/gallery3d/ui/AbstractSlotRenderer.java @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2012 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.gallery3d.ui; + +import android.content.Context; +import android.graphics.Rect; + +import com.android.gallery3d.R; +import com.android.gallery3d.glrenderer.FadeOutTexture; +import com.android.gallery3d.glrenderer.GLCanvas; +import com.android.gallery3d.glrenderer.NinePatchTexture; +import com.android.gallery3d.glrenderer.ResourceTexture; +import com.android.gallery3d.glrenderer.Texture; + +public abstract class AbstractSlotRenderer implements SlotView.SlotRenderer { + + private final ResourceTexture mVideoOverlay; + private final ResourceTexture mVideoPlayIcon; + private final ResourceTexture mPanoramaIcon; + private final NinePatchTexture mFramePressed; + private final NinePatchTexture mFrameSelected; + private FadeOutTexture mFramePressedUp; + + protected AbstractSlotRenderer(Context context) { + mVideoOverlay = new ResourceTexture(context, R.drawable.ic_video_thumb); + mVideoPlayIcon = new ResourceTexture(context, R.drawable.ic_gallery_play); + mPanoramaIcon = new ResourceTexture(context, R.drawable.ic_360pano_holo_light); + mFramePressed = new NinePatchTexture(context, R.drawable.grid_pressed); + mFrameSelected = new NinePatchTexture(context, R.drawable.grid_selected); + } + + protected void drawContent(GLCanvas canvas, + Texture content, int width, int height, int rotation) { + canvas.save(GLCanvas.SAVE_FLAG_MATRIX); + + // The content is always rendered in to the largest square that fits + // inside the slot, aligned to the top of the slot. + width = height = Math.min(width, height); + if (rotation != 0) { + canvas.translate(width / 2, height / 2); + canvas.rotate(rotation, 0, 0, 1); + canvas.translate(-width / 2, -height / 2); + } + + // Fit the content into the box + float scale = Math.min( + (float) width / content.getWidth(), + (float) height / content.getHeight()); + canvas.scale(scale, scale, 1); + content.draw(canvas, 0, 0); + + canvas.restore(); + } + + protected void drawVideoOverlay(GLCanvas canvas, int width, int height) { + // Scale the video overlay to the height of the thumbnail and put it + // on the left side. + ResourceTexture v = mVideoOverlay; + float scale = (float) height / v.getHeight(); + int w = Math.round(scale * v.getWidth()); + int h = Math.round(scale * v.getHeight()); + v.draw(canvas, 0, 0, w, h); + + int s = Math.min(width, height) / 6; + mVideoPlayIcon.draw(canvas, (width - s) / 2, (height - s) / 2, s, s); + } + + protected void drawPanoramaIcon(GLCanvas canvas, int width, int height) { + int iconSize = Math.min(width, height) / 6; + mPanoramaIcon.draw(canvas, (width - iconSize) / 2, (height - iconSize) / 2, + iconSize, iconSize); + } + + protected boolean isPressedUpFrameFinished() { + if (mFramePressedUp != null) { + if (mFramePressedUp.isAnimating()) { + return false; + } else { + mFramePressedUp = null; + } + } + return true; + } + + protected void drawPressedUpFrame(GLCanvas canvas, int width, int height) { + if (mFramePressedUp == null) { + mFramePressedUp = new FadeOutTexture(mFramePressed); + } + drawFrame(canvas, mFramePressed.getPaddings(), mFramePressedUp, 0, 0, width, height); + } + + protected void drawPressedFrame(GLCanvas canvas, int width, int height) { + drawFrame(canvas, mFramePressed.getPaddings(), mFramePressed, 0, 0, width, height); + } + + protected void drawSelectedFrame(GLCanvas canvas, int width, int height) { + drawFrame(canvas, mFrameSelected.getPaddings(), mFrameSelected, 0, 0, width, height); + } + + protected static void drawFrame(GLCanvas canvas, Rect padding, Texture frame, + int x, int y, int width, int height) { + frame.draw(canvas, x - padding.left, y - padding.top, width + padding.left + padding.right, + height + padding.top + padding.bottom); + } +} |