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8147440: HiDPI (Windows) Swing components have incorrect sizes after changing display resolution

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Reviewed-by: serb, azvegint
This commit is contained in:
Alexander Scherbatiy 2017-02-08 18:10:13 +03:00
parent 95c98da26f
commit 6a0c29b77d
8 changed files with 716 additions and 8 deletions
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2
jdk/src/java.desktop/windows/classes/sun/awt/Win32GraphicsDevice.java
View File

@ -523,9 +523,9 @@ public class Win32GraphicsDevice extends GraphicsDevice implements
dynamicColorModel = null;
defaultConfig = null;
configs = null;
initScaleFactors();
// pass on to all top-level windows on this display
topLevels.notifyListeners();
initScaleFactors();
}
/**

26
jdk/src/java.desktop/windows/classes/sun/awt/windows/WWindowPeer.java
View File

@ -80,6 +80,8 @@ public class WWindowPeer extends WPanelPeer implements WindowPeer,
* WindowStateEvent is posted to the EventQueue.
*/
private WindowListener windowListener;
private float scaleX;
private float scaleY;
/**
* Initialize JNI field IDs
@ -190,7 +192,10 @@ public class WWindowPeer extends WPanelPeer implements WindowPeer,
// Express our interest in display changes
GraphicsConfiguration gc = getGraphicsConfiguration();
((Win32GraphicsDevice)gc.getDevice()).addDisplayChangedListener(this);
Win32GraphicsDevice gd = (Win32GraphicsDevice) gc.getDevice();
gd.addDisplayChangedListener(this);
scaleX = gd.getDefaultScaleX();
scaleY = gd.getDefaultScaleY();
initActiveWindowsTracking((Window)target);
@ -539,6 +544,22 @@ public class WWindowPeer extends WPanelPeer implements WindowPeer,
AWTAccessor.getComponentAccessor().
setGraphicsConfiguration((Component)target, winGraphicsConfig);
checkDPIChange(oldDev, newDev);
}
private void checkDPIChange(Win32GraphicsDevice oldDev,
Win32GraphicsDevice newDev) {
float newScaleX = newDev.getDefaultScaleX();
float newScaleY = newDev.getDefaultScaleY();
if (scaleX != newScaleX || scaleY != newScaleY) {
if (oldDev.getScreen() == newDev.getScreen()) {
windowDPIChange(scaleX, scaleY, newScaleX, newScaleY);
}
scaleX = newScaleX;
scaleY = newScaleY;
}
}
/**
@ -781,6 +802,9 @@ public class WWindowPeer extends WPanelPeer implements WindowPeer,
}
}
native void windowDPIChange(float prevScaleX, float prevScaleY,
float newScaleX, float newScaleY);
/*
* The method maps the list of the active windows to the window's AppContext,
* then the method registers ActiveWindowListener, GuiDisposedListener listeners;

10
jdk/src/java.desktop/windows/native/libawt/windows/awt_Component.cpp
View File

@ -950,8 +950,11 @@ AwtComponent::SetWindowPos(HWND wnd, HWND after,
return 1;
}
void AwtComponent::Reshape(int x, int y, int w, int h) {
ReshapeNoScale(ScaleUpX(x), ScaleUpY(y), ScaleUpX(w), ScaleUpY(h));
}
void AwtComponent::Reshape(int x, int y, int w, int h)
void AwtComponent::ReshapeNoScale(int x, int y, int w, int h)
{
#if defined(DEBUG)
RECT rc;
@ -960,11 +963,6 @@ void AwtComponent::Reshape(int x, int y, int w, int h)
DTRACE_PRINTLN4("AwtComponent::Reshape from %d, %d, %d, %d", rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top);
#endif
x = ScaleUpX(x);
y = ScaleUpY(y);
w = ScaleUpX(w);
h = ScaleUpY(h);
AwtWindow* container = GetContainer();
AwtComponent* parent = GetParent();
if (container != NULL && container == parent) {

1
jdk/src/java.desktop/windows/native/libawt/windows/awt_Component.h
View File

@ -275,6 +275,7 @@ public:
virtual void Show();
virtual void Hide();
virtual void Reshape(int x, int y, int w, int h);
void ReshapeNoScale(int x, int y, int w, int h);
/*
* Fix for 4046446.

128
jdk/src/java.desktop/windows/native/libawt/windows/awt_Window.cpp
View File

@ -153,6 +153,14 @@ struct SetFullScreenExclusiveModeStateStruct {
jboolean isFSEMState;
};
// struct for _WindowDPIChange() method
struct ScaleStruct {
jobject window;
jfloat prevScaleX;
jfloat prevScaleY;
jfloat scaleX;
jfloat scaleY;
};
/************************************************************************
* AwtWindow fields
@ -1753,6 +1761,9 @@ MsgRouting AwtWindow::WmMove(int x, int y)
(env)->SetIntField(peer, AwtWindow::sysYID, ScaleDownY(rect.top));
SendComponentEvent(java_awt_event_ComponentEvent_COMPONENT_MOVED);
prevX = rect.left;
prevY = rect.top;
env->DeleteLocalRef(target);
return AwtComponent::WmMove(x, y);
}
@ -2053,6 +2064,8 @@ void AwtWindow::CheckIfOnNewScreen() {
int curScrn = GetScreenImOn();
if (curScrn != m_screenNum) { // we've been moved
int prevScrn = m_screenNum;
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
jclass peerCls = env->GetObjectClass(m_peerObject);
@ -2068,12 +2081,81 @@ void AwtWindow::CheckIfOnNewScreen() {
}
env->CallVoidMethod(m_peerObject, draggedID);
m_screenNum = curScrn;
WindowDPIChange(prevScrn, curScrn);
env->DeleteLocalRef(peerCls);
}
}
int Disposition(int x1, int x2, int x) {
return x < x1 ? -1 : (x > x2 ? 1 : 0);
}
void AwtWindow::WindowDPIChange(int prevScreen, int screen) {
Devices::InstanceAccess devices;
AwtWin32GraphicsDevice* prevDevice = devices->GetDevice(prevScreen);
AwtWin32GraphicsDevice* device = devices->GetDevice(screen);
if (prevDevice && device) {
RECT prevBounds;
RECT bounds;
if (MonitorBounds(prevDevice->GetMonitor(), &prevBounds)
&& MonitorBounds(device->GetMonitor(), &bounds)) {
int x;
int y;
int dx;
int dy;
RECT rect;
::GetWindowRect(GetHWnd(), &rect);
x = rect.left;
y = rect.top;
dx = x - prevX;
dy = y - prevY;
if (dx != 0 || dy != 0) {
int w = rect.right - rect.left;
int h = rect.bottom - rect.top;
int dispX = Disposition(prevBounds.left, prevBounds.right,
(bounds.left + bounds.right) / 2);
int dispY = Disposition(prevBounds.top, prevBounds.bottom,
(bounds.top + bounds.bottom) / 2);
w = w * device->GetScaleX() / prevDevice->GetScaleX();
h = h * device->GetScaleY() / prevDevice->GetScaleY();
prevX = x;
prevY = y;
if (dx != 0 && dispX != 0) {
x = dispX > 0 ? bounds.left : bounds.right - w;
y = min(y, bounds.top);
ReshapeNoScale(x, y, w, h);
} else if (dy != 0 && dispY != 0) {
x = max(x, bounds.left);
y = dispY > 0 ? bounds.top : bounds.bottom - h;
ReshapeNoScale(x, y, w, h);
}
}
}
}
}
void AwtWindow::WindowDPIChange(float prevScaleX, float prevScaleY, float scaleX, float scaleY) {
int w;
int h;
RECT rect;
::GetWindowRect(GetHWnd(), &rect);
w = (rect.right - rect.left) * scaleX / prevScaleX;
h = (rect.bottom - rect.top) * scaleY / prevScaleY;
ReshapeNoScale(rect.left, rect.top, w, h);
}
BOOL AwtWindow::IsFocusableWindow() {
/*
* For Window/Frame/Dialog to accept focus it should:
@ -3102,6 +3184,29 @@ void AwtWindow::_GetNativeWindowSize(void* param) {
env->DeleteGlobalRef(self);
}
void AwtWindow::_WindowDPIChange(void* param)
{
JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
ScaleStruct *ss = (ScaleStruct *)param;
jobject self = ss->window;
jfloat prevScaleX = ss->prevScaleX;
jfloat prevScaleY = ss->prevScaleY;
jfloat scaleX = ss->scaleX;
jfloat scaleY = ss->scaleY;
PDATA pData;
JNI_CHECK_PEER_GOTO(self, ret);
AwtWindow *window = (AwtWindow *)pData;
window->WindowDPIChange(prevScaleX, prevScaleY, scaleX, scaleY);
ret:
env->DeleteGlobalRef(self);
delete ss;
}
extern "C" int getSystemMetricValue(int msgType);
extern "C" {
@ -3800,4 +3905,27 @@ Java_sun_awt_windows_WWindowPeer_repositionSecurityWarning(JNIEnv *env,
CATCH_BAD_ALLOC;
}
/*
* Class: sun_awt_windows_WWindowPeer
* Method: windowDPIChange
* Signature: (FFFF)V
*/
JNIEXPORT void JNICALL
Java_sun_awt_windows_WWindowPeer_windowDPIChange(JNIEnv *env, jobject self,
jfloat prevScaleX, jfloat prevScaleY, jfloat scaleX, jfloat scaleY)
{
TRY;
ScaleStruct *ss = new ScaleStruct;
ss->window = env->NewGlobalRef(self);
ss->prevScaleX = prevScaleX;
ss->prevScaleY = prevScaleY;
ss->scaleX = scaleX;
ss->scaleY = scaleY;
AwtToolkit::GetInstance().InvokeFunction(AwtWindow::_WindowDPIChange, ss);
// global refs and ss are deleted in _WindowDPIChange
CATCH_BAD_ALLOC;
}
} /* extern "C" */

5
jdk/src/java.desktop/windows/native/libawt/windows/awt_Window.h
View File

@ -242,6 +242,7 @@ public:
static void _RepositionSecurityWarning(void* param);
static void _SetFullScreenExclusiveModeState(void* param);
static void _GetNativeWindowSize(void* param);
static void _WindowDPIChange(void* param);
inline static BOOL IsResizing() {
return sm_resizing;
@ -383,8 +384,12 @@ protected:
private:
int m_screenNum;
int prevX;
int prevY;
void InitOwner(AwtWindow *owner);
void WindowDPIChange(int prevScreen, int newScreen);
void WindowDPIChange(float prevScaleX, float prevScaleY, float scaleX, float scaleY);
Type m_windowType;
void InitType(JNIEnv *env, jobject peer);

278
jdk/test/java/awt/Window/WindowResizingOnDPIChanging/WindowResizingOnDPIChangingTest.java Normal file
View File

@ -0,0 +1,278 @@
/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.AffineTransform;
import java.awt.image.AbstractMultiResolutionImage;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
/* @test
* @bug 8147440 8147016
* @summary HiDPI (Windows): Swing components have incorrect sizes after
* changing display resolution
* @run main/manual/othervm WindowResizingOnDPIChangingTest
*/
public class WindowResizingOnDPIChangingTest {
private static volatile boolean testResult = false;
private static volatile CountDownLatch countDownLatch;
private static TestFrame undecoratedFrame;
private static TestFrame decoratedFrame;
private static JFrame mainFrame;
private static final String INSTRUCTIONS = "INSTRUCTIONS:\n"
+ "Verify that window is properly resized after the display DPI updating.\n"
+ "\n"
+ "The test is applicable for OSes that allows to change the display DPI\n"
+ "without the system rebooting (like Windows 8.1 and higher). Press PASS for other\n"
+ "systems. \n"
+ "\n"
+ "1. Set the display DPI size to 192 (DPI scale factor 200%)\n"
+ "2. Press Show Frames button\n"
+ "Two frames decorated and undecorated appear.\n"
+ "3. Check that the string \"scale 2x\" is painted on the windows.\n"
+ "4. Set the display DPI size to 96 (DPI scale factor 100%)\n"
+ "5. Check that the string \"scale: 1x\" is painted on the windows.\n"
+ "6. Check that the windows are properly resized in the same way as native applications\n"
+ "7. Check that the windows are properly repainted and do not contain drawing artifacts\n"
+ "If so, press PASS, else press FAIL.\n";
public static void main(String args[]) throws Exception {
countDownLatch = new CountDownLatch(1);
SwingUtilities.invokeLater(WindowResizingOnDPIChangingTest::createUI);
countDownLatch.await(15, TimeUnit.MINUTES);
if (!testResult) {
throw new RuntimeException("Test fails!");
}
}
private static void createUI() {
mainFrame = new JFrame("DPI change test");
GridBagLayout layout = new GridBagLayout();
JPanel mainControlPanel = new JPanel(layout);
JPanel resultButtonPanel = new JPanel(layout);
GridBagConstraints gbc = new GridBagConstraints();
JPanel testPanel = new JPanel(new FlowLayout());
JButton frameButton = new JButton("Show Frames");
frameButton.addActionListener((e) -> {
int x = 20;
int y = 10;
int w = 400;
int h = 300;
undecoratedFrame = new TestFrame(w, h, true);
undecoratedFrame.setLocation(x, y);
undecoratedFrame.setVisible(true);
decoratedFrame = new TestFrame(w, h, false);
decoratedFrame.setLocation(x + w + 10, y);
decoratedFrame.setVisible(true);
});
testPanel.add(frameButton);
gbc.gridx = 0;
gbc.gridy = 0;
gbc.fill = GridBagConstraints.HORIZONTAL;
mainControlPanel.add(testPanel, gbc);
JTextArea instructionTextArea = new JTextArea();
instructionTextArea.setText(INSTRUCTIONS);
instructionTextArea.setEditable(false);
instructionTextArea.setBackground(Color.white);
gbc.gridx = 0;
gbc.gridy = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
mainControlPanel.add(instructionTextArea, gbc);
JButton passButton = new JButton("Pass");
passButton.setActionCommand("Pass");
passButton.addActionListener((ActionEvent e) -> {
testResult = true;
disposeFrames();
countDownLatch.countDown();
});
JButton failButton = new JButton("Fail");
failButton.setActionCommand("Fail");
failButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
disposeFrames();
countDownLatch.countDown();
}
});
gbc.gridx = 0;
gbc.gridy = 0;
resultButtonPanel.add(passButton, gbc);
gbc.gridx = 1;
gbc.gridy = 0;
resultButtonPanel.add(failButton, gbc);
gbc.gridx = 0;
gbc.gridy = 2;
mainControlPanel.add(resultButtonPanel, gbc);
mainFrame.add(mainControlPanel);
mainFrame.pack();
mainFrame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
disposeFrames();
countDownLatch.countDown();
}
});
mainFrame.setVisible(true);
}
private static void disposeFrames() {
if (decoratedFrame != null && decoratedFrame.isVisible()) {
decoratedFrame.dispose();
}
if (undecoratedFrame != null && undecoratedFrame.isVisible()) {
undecoratedFrame.dispose();
}
if (mainFrame != null && mainFrame.isVisible()) {
mainFrame.dispose();
}
}
static class TestFrame extends Frame {
private final TestMultiResolutionImage mrImage;
public TestFrame(int width, int height, boolean undecorated) throws HeadlessException {
super("Test Frame. Undecorated: " + undecorated);
setSize(width, height);
mrImage = new TestMultiResolutionImage(width, height);
setUndecorated(undecorated);
Panel panel = new Panel(new FlowLayout()) {
@Override
public void paint(Graphics g) {
super.paint(g);
AffineTransform tx = ((Graphics2D) g).getTransform();
mrImage.scaleX = tx.getScaleX();
mrImage.scaleY = tx.getScaleY();
Insets insets = getInsets();
g.drawImage(mrImage, insets.left, insets.bottom, null);
}
};
add(panel);
}
}
static class TestMultiResolutionImage extends AbstractMultiResolutionImage {
final int width;
final int height;
double scaleX;
double scaleY;
public TestMultiResolutionImage(int width, int height) {
this.width = width;
this.height = height;
}
@Override
public int getWidth(ImageObserver observer) {
return width;
}
@Override
public int getHeight(ImageObserver observer) {
return height;
}
@Override
protected Image getBaseImage() {
return getResolutionVariant(width, height);
}
@Override
public Image getResolutionVariant(double destImageWidth, double destImageHeight) {
int w = (int) destImageWidth;
int h = (int) destImageHeight;
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g = img.createGraphics();
g.scale(scaleX, scaleY);
int red = (int) (255 / scaleX);
int green = (int) (250 / scaleX);
int blue = (int) (20 / scaleX);
g.setColor(new Color(red, green, blue));
g.fillRect(0, 0, width, height);
g.setColor(Color.decode("#87CEFA"));
Font f = g.getFont();
g.setFont(new Font(f.getName(), Font.BOLD, 24));
g.drawString(String.format("scales: [%1.2fx, %1.2fx]", scaleX, scaleY),
width / 6, height / 2);
g.dispose();
return img;
}
@Override
public List<Image> getResolutionVariants() {
return Collections.unmodifiableList(Arrays.asList(getBaseImage()));
}
}
}

274
jdk/test/java/awt/Window/WindowResizingOnDPIChanging/WindowResizingOnMovingToAnotherDisplay.java Normal file
View File

@ -0,0 +1,274 @@
/*
* Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.awt.Color;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Panel;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.AffineTransform;
import java.awt.image.AbstractMultiResolutionImage;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
/* @test
* @bug 8147440 8147016
* @summary HiDPI (Windows): Swing components have incorrect sizes after
* changing display resolution
* @run main/manual/othervm WindowResizingOnMovingToAnotherDisplay
*/
public class WindowResizingOnMovingToAnotherDisplay {
private static volatile boolean testResult = false;
private static volatile CountDownLatch countDownLatch;
private static TestFrame frame;
private static JFrame mainFrame;
private static final String INSTRUCTIONS = "INSTRUCTIONS:\n"
+ "Verify that a window is properly resized after moving to a display"
+ " with different DPI.\n"
+ "\n"
+ "The test is applicable for a multi-monitor system where displays"
+ " are configured to have different DPI\n"
+ "\n"
+ "1. Press Show Frame button\n"
+ "The frame appear.\n"
+ "2. Check that the string \"scales [ScaleX, ScaleY]\" is painted on the window"
+ " where ScaleX and ScaleY are the scales for current display.\n"
+ "The scales are calculated as DPI / 96 and are 1 for the DPI value 96"
+ " and 2 for the DPI value 192.\n"
+ "3. Move the frame to the second display.\n"
+ "4. Check that the string \"scales [ScaleX, ScaleY]\" is updated"
+ " to show the right display scales.\n"
+ "5. Check that the window is properly resized.\n"
+ "6. Check that the window is properly repainted and does not contain drawing artifacts\n"
+ "Try different display positions (left, right, top, bottom).\n"
+ "If all tests are passed, press PASS, else press FAIL.\n";
public static void main(String args[]) throws Exception {
countDownLatch = new CountDownLatch(1);
SwingUtilities.invokeLater(WindowResizingOnMovingToAnotherDisplay::createUI);
countDownLatch.await(15, TimeUnit.MINUTES);
if (!testResult) {
throw new RuntimeException("Test fails!");
}
}
private static void createUI() {
mainFrame = new JFrame("DPI change test");
GridBagLayout layout = new GridBagLayout();
JPanel mainControlPanel = new JPanel(layout);
JPanel resultButtonPanel = new JPanel(layout);
GridBagConstraints gbc = new GridBagConstraints();
JPanel testPanel = new JPanel(new FlowLayout());
JButton frameButton = new JButton("Show Frame");
frameButton.addActionListener((e) -> {
int x = 20;
int y = 10;
int w = 400;
int h = 300;
frame = new TestFrame(w, h);
frame.setLocation(x, y);
frame.setVisible(true);
});
testPanel.add(frameButton);
gbc.gridx = 0;
gbc.gridy = 0;
gbc.fill = GridBagConstraints.HORIZONTAL;
mainControlPanel.add(testPanel, gbc);
JTextArea instructionTextArea = new JTextArea();
instructionTextArea.setText(INSTRUCTIONS);
instructionTextArea.setEditable(false);
instructionTextArea.setBackground(Color.white);
gbc.gridx = 0;
gbc.gridy = 1;
gbc.fill = GridBagConstraints.HORIZONTAL;
mainControlPanel.add(instructionTextArea, gbc);
JButton passButton = new JButton("Pass");
passButton.setActionCommand("Pass");
passButton.addActionListener((ActionEvent e) -> {
testResult = true;
disposeFrames();
countDownLatch.countDown();
});
JButton failButton = new JButton("Fail");
failButton.setActionCommand("Fail");
failButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
disposeFrames();
countDownLatch.countDown();
}
});
gbc.gridx = 0;
gbc.gridy = 0;
resultButtonPanel.add(passButton, gbc);
gbc.gridx = 1;
gbc.gridy = 0;
resultButtonPanel.add(failButton, gbc);
gbc.gridx = 0;
gbc.gridy = 2;
mainControlPanel.add(resultButtonPanel, gbc);
mainFrame.add(mainControlPanel);
mainFrame.pack();
mainFrame.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
disposeFrames();
countDownLatch.countDown();
}
});
mainFrame.setVisible(true);
}
private static void disposeFrames() {
if (frame != null && frame.isVisible()) {
frame.dispose();
}
if (mainFrame != null && mainFrame.isVisible()) {
mainFrame.dispose();
}
}
static class TestFrame extends Frame {
private final TestMultiResolutionImage mrImage;
public TestFrame(int width, int height) throws HeadlessException {
super("Test Frame");
setSize(width, height);
mrImage = new TestMultiResolutionImage(width, height);
Panel panel = new Panel(new FlowLayout()) {
@Override
public void paint(Graphics g) {
super.paint(g);
AffineTransform tx = ((Graphics2D) g).getTransform();
mrImage.scaleX = tx.getScaleX();
mrImage.scaleY = tx.getScaleY();
Insets insets = getInsets();
g.drawImage(mrImage, insets.left, insets.bottom, null);
}
};
add(panel);
}
}
static class TestMultiResolutionImage extends AbstractMultiResolutionImage {
final int width;
final int height;
double scaleX;
double scaleY;
public TestMultiResolutionImage(int width, int height) {
this.width = width;
this.height = height;
}
@Override
public int getWidth(ImageObserver observer) {
return width;
}
@Override
public int getHeight(ImageObserver observer) {
return height;
}
@Override
protected Image getBaseImage() {
return getResolutionVariant(width, height);
}
@Override
public Image getResolutionVariant(double destImageWidth, double destImageHeight) {
int w = (int) destImageWidth;
int h = (int) destImageHeight;
BufferedImage img = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
Graphics2D g = img.createGraphics();
g.scale(scaleX, scaleY);
int red = (int) (255 / scaleX);
int green = (int) (250 / scaleX);
int blue = (int) (20 / scaleX);
g.setColor(new Color(red, green, blue));
g.fillRect(0, 0, width, height);
g.setColor(Color.decode("#87CEFA"));
Font f = g.getFont();
g.setFont(new Font(f.getName(), Font.BOLD, 24));
g.drawString(String.format("scales: [%1.2fx, %1.2fx]", scaleX, scaleY),
width / 6, height / 2);
g.dispose();
return img;
}
@Override
public List<Image> getResolutionVariants() {
return Collections.unmodifiableList(Arrays.asList(getBaseImage()));
}
}
}