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/*
* Copyright (C) 2008 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.launcher3;
import android.appwidget.AppWidgetHostView;
import android.content.ComponentName;
import android.content.Context;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.graphics.Paint;
import android.graphics.Paint.FontMetrics;
import android.graphics.PointF;
import android.graphics.Rect;
import android.util.DisplayMetrics;
import android.util.TypedValue;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.FrameLayout;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
class DeviceProfileQuery {
float widthDps;
float heightDps;
float value;
PointF dimens;
DeviceProfileQuery(float w, float h, float v) {
widthDps = w;
heightDps = h;
value = v;
dimens = new PointF(w, h);
}
}
class DeviceProfile {
String name;
float minWidthDps;
float minHeightDps;
float numRows;
float numColumns;
float iconSize;
float iconTextSize;
float numHotseatIcons;
float hotseatIconSize;
boolean isLandscape;
boolean isTablet;
boolean isLargeTablet;
boolean transposeLayoutWithOrientation;
int desiredWorkspaceLeftRightMarginPx;
int edgeMarginPx;
Rect defaultWidgetPadding;
int widthPx;
int heightPx;
int availableWidthPx;
int availableHeightPx;
int iconSizePx;
int iconTextSizePx;
int cellWidthPx;
int cellHeightPx;
int folderBackgroundOffset;
int folderIconSizePx;
int folderCellWidthPx;
int folderCellHeightPx;
int hotseatCellWidthPx;
int hotseatCellHeightPx;
int hotseatIconSizePx;
int hotseatBarHeightPx;
int hotseatAllAppsRank;
int allAppsNumRows;
int allAppsNumCols;
int searchBarSpaceWidthPx;
int searchBarSpaceMaxWidthPx;
int searchBarSpaceHeightPx;
int searchBarHeightPx;
int pageIndicatorHeightPx;
DeviceProfile(String n, float w, float h, float r, float c,
float is, float its, float hs, float his) {
// Ensure that we have an odd number of hotseat items (since we need to place all apps)
if (!AppsCustomizePagedView.DISABLE_ALL_APPS && hs % 2 == 0) {
throw new RuntimeException("All Device Profiles must have an odd number of hotseat spaces");
}
name = n;
minWidthDps = w;
minHeightDps = h;
numRows = r;
numColumns = c;
iconSize = is;
iconTextSize = its;
numHotseatIcons = hs;
hotseatIconSize = his;
}
DeviceProfile(Context context,
ArrayList<DeviceProfile> profiles,
float minWidth, float minHeight,
int wPx, int hPx,
int awPx, int ahPx,
Resources resources) {
DisplayMetrics dm = resources.getDisplayMetrics();
ArrayList<DeviceProfileQuery> points =
new ArrayList<DeviceProfileQuery>();
transposeLayoutWithOrientation =
resources.getBoolean(R.bool.hotseat_transpose_layout_with_orientation);
minWidthDps = minWidth;
minHeightDps = minHeight;
ComponentName cn = new ComponentName(context.getPackageName(),
this.getClass().getName());
defaultWidgetPadding = AppWidgetHostView.getDefaultPaddingForWidget(context, cn, null);
edgeMarginPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_edge_margin);
desiredWorkspaceLeftRightMarginPx = 2 * edgeMarginPx;
pageIndicatorHeightPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_page_indicator_height);
// Interpolate the rows
for (DeviceProfile p : profiles) {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.numRows));
}
numRows = Math.round(invDistWeightedInterpolate(minWidth, minHeight, points));
// Interpolate the columns
points.clear();
for (DeviceProfile p : profiles) {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.numColumns));
}
numColumns = Math.round(invDistWeightedInterpolate(minWidth, minHeight, points));
// Interpolate the icon size
points.clear();
for (DeviceProfile p : profiles) {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.iconSize));
}
iconSize = invDistWeightedInterpolate(minWidth, minHeight, points);
iconSizePx = DynamicGrid.pxFromDp(iconSize, dm);
// Interpolate the icon text size
points.clear();
for (DeviceProfile p : profiles) {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.iconTextSize));
}
iconTextSize = invDistWeightedInterpolate(minWidth, minHeight, points);
iconTextSizePx = DynamicGrid.pxFromSp(iconTextSize, dm);
// Interpolate the hotseat size
points.clear();
for (DeviceProfile p : profiles) {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.numHotseatIcons));
}
numHotseatIcons = Math.round(invDistWeightedInterpolate(minWidth, minHeight, points));
// Interpolate the hotseat icon size
points.clear();
for (DeviceProfile p : profiles) {
points.add(new DeviceProfileQuery(p.minWidthDps, p.minHeightDps, p.hotseatIconSize));
}
// Hotseat
hotseatIconSize = invDistWeightedInterpolate(minWidth, minHeight, points);
hotseatIconSizePx = DynamicGrid.pxFromDp(hotseatIconSize, dm);
hotseatAllAppsRank = (int) (numColumns / 2);
// Calculate other vars based on Configuration
updateFromConfiguration(resources, wPx, hPx, awPx, ahPx);
// Search Bar
searchBarSpaceMaxWidthPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_max_width);
searchBarHeightPx = resources.getDimensionPixelSize(R.dimen.dynamic_grid_search_bar_height);
searchBarSpaceWidthPx = Math.min(searchBarSpaceMaxWidthPx, widthPx);
searchBarSpaceHeightPx = searchBarHeightPx + 2 * edgeMarginPx;
// Calculate the actual text height
Paint textPaint = new Paint();
textPaint.setTextSize(iconTextSizePx);
FontMetrics fm = textPaint.getFontMetrics();
cellWidthPx = iconSizePx;
cellHeightPx = iconSizePx + (int) Math.ceil(fm.bottom - fm.top);
// At this point, if the cells do not fit into the available height, then we need
// to shrink the icon size
/*
Rect padding = getWorkspacePadding(isLandscape ?
CellLayout.LANDSCAPE : CellLayout.PORTRAIT);
int h = (int) (numRows * cellHeightPx) + padding.top + padding.bottom;
if (h > availableHeightPx) {
float delta = h - availableHeightPx;
int deltaPx = (int) Math.ceil(delta / numRows);
iconSizePx -= deltaPx;
iconSize = DynamicGrid.dpiFromPx(iconSizePx, dm);
cellWidthPx = iconSizePx;
cellHeightPx = iconSizePx + (int) Math.ceil(fm.bottom - fm.top);
}
*/
// Hotseat
hotseatBarHeightPx = iconSizePx + 4 * edgeMarginPx;
hotseatCellWidthPx = iconSizePx;
hotseatCellHeightPx = iconSizePx;
// Folder
folderCellWidthPx = cellWidthPx + 3 * edgeMarginPx;
folderCellHeightPx = cellHeightPx + (int) ((3f/2f) * edgeMarginPx);
folderBackgroundOffset = -edgeMarginPx;
folderIconSizePx = iconSizePx + 2 * -folderBackgroundOffset;
}
void updateFromConfiguration(Resources resources, int wPx, int hPx,
int awPx, int ahPx) {
isLandscape = (resources.getConfiguration().orientation ==
Configuration.ORIENTATION_LANDSCAPE);
isTablet = resources.getBoolean(R.bool.is_tablet);
isLargeTablet = resources.getBoolean(R.bool.is_large_tablet);
widthPx = wPx;
heightPx = hPx;
availableWidthPx = awPx;
availableHeightPx = ahPx;
Rect padding = getWorkspacePadding(isLandscape ?
CellLayout.LANDSCAPE : CellLayout.PORTRAIT);
int pageIndicatorOffset =
resources.getDimensionPixelSize(R.dimen.apps_customize_page_indicator_offset);
if (isLandscape) {
allAppsNumRows = (availableHeightPx - pageIndicatorOffset - 4 * edgeMarginPx) /
(iconSizePx + iconTextSizePx + 2 * edgeMarginPx);
} else {
allAppsNumRows = (int) numRows + 1;
}
allAppsNumCols = (availableWidthPx - padding.left - padding.right - 2 * edgeMarginPx) /
(iconSizePx + 2 * edgeMarginPx);
}
private float dist(PointF p0, PointF p1) {
return (float) Math.sqrt((p1.x - p0.x)*(p1.x-p0.x) +
(p1.y-p0.y)*(p1.y-p0.y));
}
private float weight(PointF a, PointF b,
float pow) {
float d = dist(a, b);
if (d == 0f) {
return Float.POSITIVE_INFINITY;
}
return (float) (1f / Math.pow(d, pow));
}
private float invDistWeightedInterpolate(float width, float height,
ArrayList<DeviceProfileQuery> points) {
float sum = 0;
float weights = 0;
float pow = 5;
float kNearestNeighbors = 3;
final PointF xy = new PointF(width, height);
ArrayList<DeviceProfileQuery> pointsByNearness = points;
Collections.sort(pointsByNearness, new Comparator<DeviceProfileQuery>() {
public int compare(DeviceProfileQuery a, DeviceProfileQuery b) {
return (int) (dist(xy, a.dimens) - dist(xy, b.dimens));
}
});
for (int i = 0; i < pointsByNearness.size(); ++i) {
DeviceProfileQuery p = pointsByNearness.get(i);
if (i < kNearestNeighbors) {
float w = weight(xy, p.dimens, pow);
if (w == Float.POSITIVE_INFINITY) {
return p.value;
}
weights += w;
}
}
for (int i = 0; i < pointsByNearness.size(); ++i) {
DeviceProfileQuery p = pointsByNearness.get(i);
if (i < kNearestNeighbors) {
float w = weight(xy, p.dimens, pow);
sum += w * p.value / weights;
}
}
return sum;
}
Rect getWorkspacePadding(int orientation) {
Rect padding = new Rect();
if (orientation == CellLayout.LANDSCAPE &&
transposeLayoutWithOrientation) {
// Pad the left and right of the workspace with search/hotseat bar sizes
padding.set(searchBarSpaceHeightPx, edgeMarginPx,
hotseatBarHeightPx, edgeMarginPx);
} else {
if (isTablet()) {
// Pad the left and right of the workspace to ensure consistent spacing
// between all icons
int width = (orientation == CellLayout.LANDSCAPE)
? Math.max(widthPx, heightPx)
: Math.min(widthPx, heightPx);
// XXX: If the icon size changes across orientations, we will have to take
// that into account here too.
int gap = (int) ((width - 2 * edgeMarginPx -
(numColumns * cellWidthPx)) / (2 * (numColumns + 1)));
padding.set(edgeMarginPx + gap,
searchBarSpaceHeightPx,
edgeMarginPx + gap,
hotseatBarHeightPx + pageIndicatorHeightPx);
} else {
// Pad the top and bottom of the workspace with search/hotseat bar sizes
padding.set(desiredWorkspaceLeftRightMarginPx - defaultWidgetPadding.left,
searchBarSpaceHeightPx,
desiredWorkspaceLeftRightMarginPx - defaultWidgetPadding.right,
hotseatBarHeightPx + pageIndicatorHeightPx);
}
}
return padding;
}
// The rect returned will be extended to below the system ui that covers the workspace
Rect getHotseatRect() {
if (isVerticalBarLayout()) {
return new Rect(availableWidthPx - hotseatBarHeightPx, 0,
Integer.MAX_VALUE, availableHeightPx);
} else {
return new Rect(0, availableHeightPx - hotseatBarHeightPx,
availableWidthPx, Integer.MAX_VALUE);
}
}
int calculateCellWidth(int width, int countX) {
return width / countX;
}
int calculateCellHeight(int height, int countY) {
return height / countY;
}
boolean isPhone() {
return !isTablet && !isLargeTablet;
}
boolean isTablet() {
return isTablet;
}
boolean isLargeTablet() {
return isLargeTablet;
}
boolean isVerticalBarLayout() {
return isLandscape && transposeLayoutWithOrientation;
}
public void layout(Launcher launcher) {
FrameLayout.LayoutParams lp;
Resources res = launcher.getResources();
boolean hasVerticalBarLayout = isVerticalBarLayout();
// Layout the search bar space
View searchBar = launcher.getSearchBar();
lp = (FrameLayout.LayoutParams) searchBar.getLayoutParams();
if (hasVerticalBarLayout) {
// Vertical search bar
lp.gravity = Gravity.TOP | Gravity.LEFT;
lp.width = searchBarSpaceHeightPx;
lp.height = LayoutParams.MATCH_PARENT;
searchBar.setPadding(
0, 2 * edgeMarginPx, 0,
2 * edgeMarginPx);
} else {
// Horizontal search bar
lp.gravity = Gravity.TOP | Gravity.CENTER_HORIZONTAL;
lp.width = searchBarSpaceWidthPx;
lp.height = searchBarSpaceHeightPx;
searchBar.setPadding(
2 * edgeMarginPx,
2 * edgeMarginPx,
2 * edgeMarginPx, 0);
}
searchBar.setLayoutParams(lp);
// Layout the search bar
View qsbBar = launcher.getQsbBar();
LayoutParams vglp = qsbBar.getLayoutParams();
vglp.width = LayoutParams.MATCH_PARENT;
vglp.height = LayoutParams.MATCH_PARENT;
qsbBar.setLayoutParams(vglp);
// Layout the voice proxy
View voiceButtonProxy = launcher.findViewById(R.id.voice_button_proxy);
if (voiceButtonProxy != null) {
if (hasVerticalBarLayout) {
// TODO: MOVE THIS INTO SEARCH BAR MEASURE
} else {
lp = (FrameLayout.LayoutParams) voiceButtonProxy.getLayoutParams();
lp.gravity = Gravity.TOP | Gravity.END;
lp.width = (widthPx - searchBarSpaceWidthPx) / 2 +
2 * iconSizePx;
lp.height = searchBarSpaceHeightPx;
}
}
// Layout the workspace
View workspace = launcher.findViewById(R.id.workspace);
lp = (FrameLayout.LayoutParams) workspace.getLayoutParams();
lp.gravity = Gravity.CENTER;
Rect padding = getWorkspacePadding(isLandscape
? CellLayout.LANDSCAPE
: CellLayout.PORTRAIT);
workspace.setPadding(padding.left, padding.top,
padding.right, padding.bottom);
workspace.setLayoutParams(lp);
// Layout the hotseat
View hotseat = launcher.findViewById(R.id.hotseat);
lp = (FrameLayout.LayoutParams) hotseat.getLayoutParams();
if (hasVerticalBarLayout) {
// Vertical hotseat
lp.gravity = Gravity.RIGHT;
lp.width = hotseatBarHeightPx;
lp.height = LayoutParams.MATCH_PARENT;
hotseat.setPadding(0, 2 * edgeMarginPx,
2 * edgeMarginPx, 2 * edgeMarginPx);
} else if (isTablet()) {
// Pad the hotseat with the grid gap calculated above
int gridGap = (int) ((widthPx - 2 * edgeMarginPx -
(numColumns * cellWidthPx)) / (2 * (numColumns + 1)));
int gridWidth = (int) ((numColumns * cellWidthPx) +
((numColumns - 1) * gridGap));
int hotseatGap = (int) Math.max(0,
(gridWidth - (numHotseatIcons * hotseatCellWidthPx))
/ (numHotseatIcons - 1));
lp.gravity = Gravity.BOTTOM;
lp.width = LayoutParams.MATCH_PARENT;
lp.height = hotseatBarHeightPx;
hotseat.setPadding(2 * edgeMarginPx + gridGap + hotseatGap, 0,
2 * edgeMarginPx + gridGap + hotseatGap,
2 * edgeMarginPx);
} else {
// For phones, layout the hotseat without any bottom margin
// to ensure that we have space for the folders
lp.gravity = Gravity.BOTTOM;
lp.width = LayoutParams.MATCH_PARENT;
lp.height = hotseatBarHeightPx;
hotseat.findViewById(R.id.layout).setPadding(2 * edgeMarginPx, 0,
2 * edgeMarginPx, 0);
}
hotseat.setLayoutParams(lp);
// Layout the page indicators
View pageIndicator = launcher.findViewById(R.id.page_indicator);
if (pageIndicator != null) {
if (hasVerticalBarLayout) {
// Hide the page indicators when we have vertical search/hotseat
pageIndicator.setVisibility(View.GONE);
} else {
// Put the page indicators above the hotseat
lp = (FrameLayout.LayoutParams) pageIndicator.getLayoutParams();
lp.gravity = Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM;
lp.width = LayoutParams.WRAP_CONTENT;
lp.height = LayoutParams.WRAP_CONTENT;
lp.bottomMargin = hotseatBarHeightPx;
pageIndicator.setLayoutParams(lp);
}
}
}
}
public class DynamicGrid {
@SuppressWarnings("unused")
private static final String TAG = "DynamicGrid";
private DeviceProfile mProfile;
private float mMinWidth;
private float mMinHeight;
public static float dpiFromPx(int size, DisplayMetrics metrics){
float densityRatio = (float) metrics.densityDpi / DisplayMetrics.DENSITY_DEFAULT;
return (size / densityRatio);
}
public static int pxFromDp(float size, DisplayMetrics metrics) {
return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
size, metrics));
}
public static int pxFromSp(float size, DisplayMetrics metrics) {
return (int) Math.round(TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
size, metrics));
}
public DynamicGrid(Context context, Resources resources,
int minWidthPx, int minHeightPx,
int widthPx, int heightPx,
int awPx, int ahPx) {
DisplayMetrics dm = resources.getDisplayMetrics();
ArrayList<DeviceProfile> deviceProfiles =
new ArrayList<DeviceProfile>();
boolean hasAA = !AppsCustomizePagedView.DISABLE_ALL_APPS;
// Our phone profiles include the bar sizes in each orientation
deviceProfiles.add(new DeviceProfile("Super Short Stubby",
255, 300, 2, 3, 48, 13, (hasAA ? 5 : 4), 48));
deviceProfiles.add(new DeviceProfile("Shorter Stubby",
255, 400, 3, 3, 48, 13, (hasAA ? 5 : 4), 48));
deviceProfiles.add(new DeviceProfile("Short Stubby",
275, 420, 3, 4, 48, 13, (hasAA ? 5 : 4), 48));
deviceProfiles.add(new DeviceProfile("Stubby",
255, 450, 3, 4, 48, 13, (hasAA ? 5 : 4), 48));
deviceProfiles.add(new DeviceProfile("Nexus S",
296, 491.33f, 4, 4, 48, 13, (hasAA ? 5 : 4), 48));
deviceProfiles.add(new DeviceProfile("Nexus 4",
359, 518, 4, 4, 60, 13, (hasAA ? 5 : 4), 56));
// The tablet profile is odd in that the landscape orientation
// also includes the nav bar on the side
deviceProfiles.add(new DeviceProfile("Nexus 7",
575, 904, 6, 6, 72, 14.4f, 7, 60));
// Larger tablet profiles always have system bars on the top & bottom
deviceProfiles.add(new DeviceProfile("Nexus 10",
727, 1207, 5, 8, 80, 14.4f, 9, 64));
/*
deviceProfiles.add(new DeviceProfile("Nexus 7",
600, 960, 5, 5, 72, 14.4f, 5, 60));
deviceProfiles.add(new DeviceProfile("Nexus 10",
800, 1280, 5, 5, 80, 14.4f, (hasAA ? 7 : 6), 64));
*/
deviceProfiles.add(new DeviceProfile("20-inch Tablet",
1527, 2527, 7, 7, 100, 20, 7, 72));
mMinWidth = dpiFromPx(minWidthPx, dm);
mMinHeight = dpiFromPx(minHeightPx, dm);
mProfile = new DeviceProfile(context, deviceProfiles,
mMinWidth, mMinHeight,
widthPx, heightPx,
awPx, ahPx,
resources);
}
DeviceProfile getDeviceProfile() {
return mProfile;
}
public String toString() {
return "-------- DYNAMIC GRID ------- \n" +
"Wd: " + mProfile.minWidthDps + ", Hd: " + mProfile.minHeightDps +
", W: " + mProfile.widthPx + ", H: " + mProfile.heightPx +
" [r: " + mProfile.numRows + ", c: " + mProfile.numColumns +
", is: " + mProfile.iconSizePx + ", its: " + mProfile.iconTextSize +
", cw: " + mProfile.cellWidthPx + ", ch: " + mProfile.cellHeightPx +
", hc: " + mProfile.numHotseatIcons + ", his: " + mProfile.hotseatIconSizePx + "]";
}
}