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Window decorations: improved window title bar layout for small window widths:

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- width of iconify/maximize/close buttons is reduced to give more space to embedded menu bar and title
- window title now has a minimum width to always allow moving window
This commit is contained in:
Karl Tauber
2022-07-09 19:54:29 +02:00
parent 6ee737b314
commit 42764550e6
7 changed files with 64 additions and 12 deletions
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60
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTitlePane.java
View File

@@ -83,6 +83,8 @@ import com.formdev.flatlaf.util.UIScale;
* @uiDefault TitlePane.iconMargins Insets
* @uiDefault TitlePane.titleMargins Insets
* @uiDefault TitlePane.menuBarEmbedded boolean
* @uiDefault TitlePane.titleMinimumWidth int
* @uiDefault TitlePane.buttonMinimumWidth int
* @uiDefault TitlePane.buttonMaximizedHeight int
* @uiDefault TitlePane.centerTitle boolean
* @uiDefault TitlePane.centerTitleIfMenuBarEmbedded boolean
@@ -108,6 +110,8 @@ public class FlatTitlePane
/** @since 2 */ protected final boolean showIcon = FlatUIUtils.getUIBoolean( "TitlePane.showIcon", true );
/** @since 2 */ protected final int noIconLeftGap = FlatUIUtils.getUIInt( "TitlePane.noIconLeftGap", 8 );
protected final Dimension iconSize = UIManager.getDimension( "TitlePane.iconSize" );
/** @since 2.4 */ protected final int titleMinimumWidth = FlatUIUtils.getUIInt( "TitlePane.titleMinimumWidth", 30 );
/** @since 2.4 */ protected final int buttonMinimumWidth = FlatUIUtils.getUIInt( "TitlePane.buttonMinimumWidth", 22 );
protected final int buttonMaximizedHeight = UIManager.getInt( "TitlePane.buttonMaximizedHeight" );
protected final boolean centerTitle = UIManager.getBoolean( "TitlePane.centerTitle" );
protected final boolean centerTitleIfMenuBarEmbedded = FlatUIUtils.getUIBoolean( "TitlePane.centerTitleIfMenuBarEmbedded", true );
@@ -185,18 +189,44 @@ public class FlatTitlePane
setLayout( new BorderLayout() {
@Override
public void layoutContainer( Container target ) {
super.layoutContainer( target );
// make left panel (with embedded menu bar) smaller if horizontal space is rare
// to avoid that embedded menu bar overlaps button bar
// compute available bounds
Insets insets = target.getInsets();
int width = target.getWidth() - insets.left - insets.right;
if( leftPanel.getWidth() + buttonPanel.getWidth() > width ) {
int oldWidth = leftPanel.getWidth();
int newWidth = Math.max( width - buttonPanel.getWidth(), 0 );
leftPanel.setSize( newWidth, leftPanel.getHeight() );
if( !getComponentOrientation().isLeftToRight() )
leftPanel.setLocation( leftPanel.getX() + (oldWidth - newWidth), leftPanel.getY() );
int x = insets.left;
int y = insets.top;
int w = target.getWidth() - insets.left - insets.right;
int h = target.getHeight() - insets.top - insets.bottom;
// compute widths
int leftWidth = leftPanel.getPreferredSize().width;
int buttonsWidth = buttonPanel.getPreferredSize().width;
int titleWidth = w - leftWidth - buttonsWidth;
int minTitleWidth = UIScale.scale( titleMinimumWidth );
// if title is too small, reduce width of buttons
if( titleWidth < minTitleWidth ) {
buttonsWidth = Math.max( buttonsWidth - (minTitleWidth - titleWidth), buttonPanel.getMinimumSize().width );
titleWidth = w - leftWidth - buttonsWidth;
}
// if title is still too small, reduce width of left panel (icon and embedded menu bar)
if( titleWidth < minTitleWidth ) {
int minLeftWidth = iconLabel.isVisible()
? iconLabel.getWidth() - iconLabel.getInsets().right
: UIScale.scale( noIconLeftGap );
leftWidth = Math.max( leftWidth - (minTitleWidth - titleWidth), minLeftWidth );
titleWidth = w - leftWidth - buttonsWidth;
}
if( target.getComponentOrientation().isLeftToRight() ) {
// left-to-right
leftPanel.setBounds( x, y, leftWidth, h );
titleLabel.setBounds( x + leftWidth, y, titleWidth, h );
buttonPanel.setBounds( x + leftWidth + titleWidth, y, buttonsWidth, h );
} else {
// right-to-left
buttonPanel.setBounds( x, y, buttonsWidth, h );
titleLabel.setBounds( x + buttonsWidth, y, titleWidth, h );
leftPanel.setBounds( x + buttonsWidth + titleWidth, y, leftWidth, h );
}
// If menu bar is embedded and contains a horizontal glue component,
@@ -258,7 +288,13 @@ public class FlatTitlePane
}
protected JButton createButton( String iconKey, String accessibleName, ActionListener action ) {
JButton button = new JButton( UIManager.getIcon( iconKey ) );
JButton button = new JButton( UIManager.getIcon( iconKey ) ) {
@Override
public Dimension getMinimumSize() {
// allow the button to shrink if space is rare
return new Dimension( UIScale.scale( buttonMinimumWidth ), super.getMinimumSize().height );
}
};
button.setFocusable( false );
button.setContentAreaFilled( false );
button.setBorder( BorderFactory.createEmptyBorder() );

2
flatlaf-core/src/main/resources/com/formdev/flatlaf/FlatLaf.properties
View File

@@ -789,7 +789,9 @@ TitlePane.noIconLeftGap = 8
TitlePane.iconSize = 16,16
TitlePane.iconMargins = 3,8,3,8
TitlePane.titleMargins = 3,0,3,0
TitlePane.titleMinimumWidth = 30
TitlePane.buttonSize = 44,30
TitlePane.buttonMinimumWidth = 22
TitlePane.buttonMaximizedHeight = 22
TitlePane.centerTitle = false
TitlePane.centerTitleIfMenuBarEmbedded = true