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/*
* Copyright (C) 2009 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.sdkuilib.internal.widgets;
import com.android.sdkuilib.ui.GridDialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Monitor;
import org.eclipse.swt.widgets.Shell;
/**
* Small dialog to let a user choose a screen size (from a fixed list) and a resolution
* (as returned by {@link Display#getMonitors()}).
* After the dialog as returned, one can query {@link #getDensity()} to get the chosen monitor
* pixel density.
*/
public class ResolutionChooserDialog extends GridDialog {
public final static float[] MONITOR_SIZES = new float[] {
13.3f, 14, 15.4f, 15.6f, 17, 19, 20, 21, 24, 30,
};
private Button mButton;
private Combo mScreenSizeCombo;
private Combo mMonitorCombo;
private Monitor[] mMonitors;
private int mScreenSizeIndex = -1;
private int mMonitorIndex = 0;
public ResolutionChooserDialog(Shell parentShell) {
super(parentShell, 2, false);
}
/**
* Returns the pixel density of the user-chosen monitor.
*/
public int getDensity() {
float size = MONITOR_SIZES[mScreenSizeIndex];
Rectangle rect = mMonitors[mMonitorIndex].getBounds();
// compute the density
double d = Math.sqrt(rect.width * rect.width + rect.height * rect.height) / size;
return (int)Math.round(d);
}
@Override
protected void configureShell(Shell newShell) {
newShell.setText("Monitor Density");
super.configureShell(newShell);
}
@Override
protected Control createContents(Composite parent) {
Control control = super.createContents(parent);
mButton = getButton(IDialogConstants.OK_ID);
mButton.setEnabled(false);
return control;
}
@Override
public void createDialogContent(Composite parent) {
Label l = new Label(parent, SWT.NONE);
l.setText("Screen Size:");
mScreenSizeCombo = new Combo(parent, SWT.DROP_DOWN | SWT.READ_ONLY);
for (float size : MONITOR_SIZES) {
if (Math.round(size) == size) {
mScreenSizeCombo.add(String.format("%.0f\"", size));
} else {
mScreenSizeCombo.add(String.format("%.1f\"", size));
}
}
mScreenSizeCombo.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent arg0) {
mScreenSizeIndex = mScreenSizeCombo.getSelectionIndex();
mButton.setEnabled(mScreenSizeIndex != -1);
}
});
l = new Label(parent, SWT.NONE);
l.setText("Resolution:");
mMonitorCombo = new Combo(parent, SWT.DROP_DOWN | SWT.READ_ONLY);
mMonitors = parent.getDisplay().getMonitors();
for (Monitor m : mMonitors) {
Rectangle r = m.getBounds();
mMonitorCombo.add(String.format("%d x %d", r.width, r.height));
}
mMonitorCombo.select(mMonitorIndex);
mMonitorCombo.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetDefaultSelected(SelectionEvent arg0) {
mMonitorIndex = mMonitorCombo.getSelectionIndex();
}
});
}
}
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