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Diffstat (limited to 'src/com/android/camera/ui/CameraControls.java')
| -rw-r--r-- | src/com/android/camera/ui/CameraControls.java | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/src/com/android/camera/ui/CameraControls.java b/src/com/android/camera/ui/CameraControls.java new file mode 100644 index 000000000..7fa6890a7 --- /dev/null +++ b/src/com/android/camera/ui/CameraControls.java @@ -0,0 +1,262 @@ +/* + * Copyright (C) 2013 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.camera.ui; + +import android.app.Activity; +import android.content.Context; +import android.content.res.Configuration; +import android.graphics.Rect; +import android.util.AttributeSet; +import android.view.View; +import android.widget.FrameLayout; + +import com.android.camera.Util; +import com.android.gallery3d.R; +import com.android.gallery3d.common.ApiHelper; + +public class CameraControls extends RotatableLayout { + + private static final String TAG = "CAM_Controls"; + + private View mBackgroundView; + private View mShutter; + private View mSwitcher; + private View mMenu; + private View mIndicators; + private View mPreview; + + public CameraControls(Context context, AttributeSet attrs) { + super(context, attrs); + } + + public CameraControls(Context context) { + super(context); + } + + @Override + public void onFinishInflate() { + super.onFinishInflate(); + mBackgroundView = findViewById(R.id.blocker); + mSwitcher = findViewById(R.id.camera_switcher); + mShutter = findViewById(R.id.shutter_button); + mMenu = findViewById(R.id.menu); + mIndicators = findViewById(R.id.on_screen_indicators); + mPreview = findViewById(R.id.preview_thumb); + } + + @Override + public void onLayout(boolean changed, int l, int t, int r, int b) { + int orientation = getResources().getConfiguration().orientation; + int size = getResources().getDimensionPixelSize(R.dimen.camera_controls_size); + int rotation = getUnifiedRotation(); + adjustBackground(); + // As l,t,r,b are positions relative to parents, we need to convert them + // to child's coordinates + r = r - l; + b = b - t; + l = 0; + t = 0; + for (int i = 0; i < getChildCount(); i++) { + View v = getChildAt(i); + v.layout(l, t, r, b); + } + Rect shutter = new Rect(); + topRight(mPreview, l, t, r, b); + if (size > 0) { + // restrict controls to size + switch (rotation) { + case 0: + case 180: + l = (l + r - size) / 2; + r = l + size; + break; + case 90: + case 270: + t = (t + b - size) / 2; + b = t + size; + break; + } + } + center(mShutter, l, t, r, b, orientation, rotation, shutter); + center(mBackgroundView, l, t, r, b, orientation, rotation, new Rect()); + toLeft(mSwitcher, shutter, rotation); + toRight(mMenu, shutter, rotation); + toRight(mIndicators, shutter, rotation); + View retake = findViewById(R.id.btn_retake); + if (retake != null) { + center(retake, shutter, rotation); + View cancel = findViewById(R.id.btn_cancel); + toLeft(cancel, shutter, rotation); + View done = findViewById(R.id.btn_done); + toRight(done, shutter, rotation); + } + } + + private void center(View v, int l, int t, int r, int b, int orientation, int rotation, Rect result) { + FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) v.getLayoutParams(); + int tw = lp.leftMargin + v.getMeasuredWidth() + lp.rightMargin; + int th = lp.topMargin + v.getMeasuredHeight() + lp.bottomMargin; + switch (rotation) { + case 0: + // phone portrait; controls bottom + result.left = (r + l) / 2 - tw / 2 + lp.leftMargin; + result.right = (r + l) / 2 + tw / 2 - lp.rightMargin; + result.bottom = b - lp.bottomMargin; + result.top = b - th + lp.topMargin; + break; + case 90: + // phone landscape: controls right + result.right = r - lp.rightMargin; + result.left = r - tw + lp.leftMargin; + result.top = (b + t) / 2 - th / 2 + lp.topMargin; + result.bottom = (b + t) / 2 + th / 2 - lp.bottomMargin; + break; + case 180: + // phone upside down: controls top + result.left = (r + l) / 2 - tw / 2 + lp.leftMargin; + result.right = (r + l) / 2 + tw / 2 - lp.rightMargin; + result.top = t + lp.topMargin; + result.bottom = t + th - lp.bottomMargin; + break; + case 270: + // reverse landscape: controls left + result.left = l + lp.leftMargin; + result.right = l + tw - lp.rightMargin; + result.top = (b + t) / 2 - th / 2 + lp.topMargin; + result.bottom = (b + t) / 2 + th / 2 - lp.bottomMargin; + break; + } + v.layout(result.left, result.top, result.right, result.bottom); + } + + private void center(View v, Rect other, int rotation) { + FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) v.getLayoutParams(); + int tw = lp.leftMargin + v.getMeasuredWidth() + lp.rightMargin; + int th = lp.topMargin + v.getMeasuredHeight() + lp.bottomMargin; + int cx = (other.left + other.right) / 2; + int cy = (other.top + other.bottom) / 2; + v.layout(cx - tw / 2 + lp.leftMargin, + cy - th / 2 + lp.topMargin, + cx + tw / 2 - lp.rightMargin, + cy + th / 2 - lp.bottomMargin); + } + + private void toLeft(View v, Rect other, int rotation) { + FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) v.getLayoutParams(); + int tw = lp.leftMargin + v.getMeasuredWidth() + lp.rightMargin; + int th = lp.topMargin + v.getMeasuredHeight() + lp.bottomMargin; + int cx = (other.left + other.right) / 2; + int cy = (other.top + other.bottom) / 2; + int l = 0, r = 0, t = 0, b = 0; + switch (rotation) { + case 0: + // portrait, to left of anchor at bottom + l = other.left - tw + lp.leftMargin; + r = other.left - lp.rightMargin; + t = cy - th / 2 + lp.topMargin; + b = cy + th / 2 - lp.bottomMargin; + break; + case 90: + // phone landscape: below anchor on right + l = cx - tw / 2 + lp.leftMargin; + r = cx + tw / 2 - lp.rightMargin; + t = other.bottom + lp.topMargin; + b = other.bottom + th - lp.bottomMargin; + break; + case 180: + // phone upside down: right of anchor at top + l = other.right + lp.leftMargin; + r = other.right + tw - lp.rightMargin; + t = cy - th / 2 + lp.topMargin; + b = cy + th / 2 - lp.bottomMargin; + break; + case 270: + // reverse landscape: above anchor on left + l = cx - tw / 2 + lp.leftMargin; + r = cx + tw / 2 - lp.rightMargin; + t = other.top - th + lp.topMargin; + b = other.top - lp.bottomMargin; + break; + } + v.layout(l, t, r, b); + } + + private void toRight(View v, Rect other, int rotation) { + FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) v.getLayoutParams(); + int tw = lp.leftMargin + v.getMeasuredWidth() + lp.rightMargin; + int th = lp.topMargin + v.getMeasuredHeight() + lp.bottomMargin; + int cx = (other.left + other.right) / 2; + int cy = (other.top + other.bottom) / 2; + int l = 0, r = 0, t = 0, b = 0; + switch (rotation) { + case 0: + l = other.right + lp.leftMargin; + r = other.right + tw - lp.rightMargin; + t = cy - th / 2 + lp.topMargin; + b = cy + th / 2 - lp.bottomMargin; + break; + case 90: + l = cx - tw / 2 + lp.leftMargin; + r = cx + tw / 2 - lp.rightMargin; + t = other.top - th + lp.topMargin; + b = other.top - lp.bottomMargin; + break; + case 180: + l = other.left - tw + lp.leftMargin; + r = other.left - lp.rightMargin; + t = cy - th / 2 + lp.topMargin; + b = cy + th / 2 - lp.bottomMargin; + break; + case 270: + l = cx - tw / 2 + lp.leftMargin; + r = cx + tw / 2 - lp.rightMargin; + t = other.bottom + lp.topMargin; + b = other.bottom + th - lp.bottomMargin; + break; + } + v.layout(l, t, r, b); + } + + private void topRight(View v, int l, int t, int r, int b) { + // layout using the specific margins; the rotation code messes up the others + int mt = getContext().getResources().getDimensionPixelSize(R.dimen.capture_margin_top); + int mr = getContext().getResources().getDimensionPixelSize(R.dimen.capture_margin_right); + v.layout(r - v.getMeasuredWidth() - mr, t + mt, r - mr, t + mt + v.getMeasuredHeight()); + } + + private void adjustBackground() { + int rotation = getUnifiedRotation(); + // remove current drawable and reset rotation + mBackgroundView.setBackgroundDrawable(null); + mBackgroundView.setRotationX(0); + mBackgroundView.setRotationY(0); + // if the switcher background is top aligned we need to flip the background + // drawable vertically; if left aligned, flip horizontally + switch (rotation) { + case 180: + mBackgroundView.setRotationX(180); + break; + case 270: + mBackgroundView.setRotationY(180); + break; + default: + break; + } + mBackgroundView.setBackgroundResource(R.drawable.switcher_bg); + } + +} |