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Window decorations: fixed maximized window bounds when programmatically maximizing window (issue #129)

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This commit is contained in:
Karl Tauber
2020-07-17 00:08:21 +02:00
parent 093dd9f3ef
commit e7ec3988e2
2 changed files with 42 additions and 15 deletions
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6
CHANGELOG.md
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@@ -1,6 +1,12 @@
FlatLaf Change Log
==================
## Unreleased
- Custom window decorations: Fixed maximized window bounds when programmatically
maximizing window. E.g. restoring window state at startup. (issue #129)
## 0.38
- Hide focus indicator when window is inactive.

45
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
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@@ -148,10 +148,6 @@ public class FlatTitlePane
iconLabel.setBorder( new FlatEmptyBorder( UIManager.getInsets( "TitlePane.iconMargins" ) ) );
titleLabel.setBorder( new FlatEmptyBorder( UIManager.getInsets( "TitlePane.titleMargins" ) ) );
//TODO
// titleLabel.setHorizontalAlignment( JLabel.CENTER );
// titleLabel.setHorizontalAlignment( JLabel.RIGHT );
leftPanel.setLayout( new BoxLayout( leftPanel, BoxLayout.LINE_AXIS ) );
leftPanel.setOpaque( false );
leftPanel.add( iconLabel );
@@ -253,6 +249,22 @@ public class FlatTitlePane
iconifyButton.setVisible( true );
maximizeButton.setVisible( resizable && !maximized );
restoreButton.setVisible( resizable && maximized );
if( maximized ) {
// In case that frame was maximized from custom code (e.g. when restoring
// window state on application startup), then maximized bounds is not set
// and the window would overlap Windows task bar.
// To avoid this, update maximized bounds here and if it has changed
// re-maximize windows so that maximized bounds are used.
Rectangle oldMaximizedBounds = frame.getMaximizedBounds();
updateMaximizedBounds();
Rectangle newMaximizedBounds = frame.getMaximizedBounds();
if( newMaximizedBounds != null && !newMaximizedBounds.equals( oldMaximizedBounds ) ) {
int oldExtendedState = frame.getExtendedState();
frame.setExtendedState( oldExtendedState & ~Frame.MAXIMIZED_BOTH );
frame.setExtendedState( oldExtendedState );
}
}
} else {
// hide buttons because they are only supported in frames
iconifyButton.setVisible( false );
@@ -425,11 +437,21 @@ public class FlatTitlePane
Frame frame = (Frame) window;
updateMaximizedBounds();
// maximize window
frame.setExtendedState( frame.getExtendedState() | Frame.MAXIMIZED_BOTH );
}
protected void updateMaximizedBounds() {
Frame frame = (Frame) window;
// set maximized bounds to avoid that maximized window overlaps Windows task bar
// (if not running in JBR and if not modified from the application)
Rectangle oldMaximizedBounds = frame.getMaximizedBounds();
if( !hasJBRCustomDecoration() &&
(frame.getMaximizedBounds() == null ||
Objects.equals( frame.getMaximizedBounds(), rootPane.getClientProperty( "_flatlaf.maximizedBounds" ) )) )
(oldMaximizedBounds == null ||
Objects.equals( oldMaximizedBounds, rootPane.getClientProperty( "_flatlaf.maximizedBounds" ) )) )
{
GraphicsConfiguration gc = window.getGraphicsConfiguration();
@@ -470,22 +492,21 @@ public class FlatTitlePane
// (see https://bugs.openjdk.java.net/browse/JDK-8231564 and
// https://bugs.openjdk.java.net/browse/JDK-8176359)
// and except for Java 8 on secondary screens where primary screen is scaled
Rectangle maximizedBounds = new Rectangle(
Rectangle newMaximizedBounds = new Rectangle(
maximizedX + screenInsets.left,
maximizedY + screenInsets.top,
maximizedWidth - screenInsets.left - screenInsets.right,
maximizedHeight - screenInsets.top - screenInsets.bottom );
if( !Objects.equals( oldMaximizedBounds, newMaximizedBounds ) ) {
// change maximized bounds
frame.setMaximizedBounds( maximizedBounds );
frame.setMaximizedBounds( newMaximizedBounds );
// remember maximized bounds in client property to be able to detect
// whether maximized bounds are modified from the application
rootPane.putClientProperty( "_flatlaf.maximizedBounds", maximizedBounds );
rootPane.putClientProperty( "_flatlaf.maximizedBounds", newMaximizedBounds );
}
}
// maximize window
frame.setExtendedState( frame.getExtendedState() | Frame.MAXIMIZED_BOTH );
}
/**