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TabbedPane: support adding custom components to left and right sides of tabs area if scroll backward/foreward buttons are used (issue #40)

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this also fixes some minor layout issues when using tabAreaInsets and arrow buttons
This commit is contained in:
Karl Tauber
2020-10-17 15:19:39 +02:00
parent 10746a454a
commit 15718cdb46
1 changed files with 66 additions and 44 deletions
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110
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java
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@@ -120,6 +120,8 @@ import com.formdev.flatlaf.util.UIScale;
* @uiDefault TabbedPane.hiddenTabsNavigation String moreTabsButton (default) or arrowButtons
* @uiDefault ScrollPane.smoothScrolling boolean
*
* @uiDefault TabbedPane.moreTabsButtonToolTipText String
*
* @author Karl Tauber
*/
public class FlatTabbedPaneUI
@@ -149,7 +151,7 @@ public class FlatTabbedPaneUI
protected boolean tabSeparatorsFullHeight;
protected boolean hasFullBorder;
protected int hiddenTabsNavigation = MORE_TABS_BUTTON;
private String hiddenTabsNavigationStr;
protected String moreTabsButtonToolTipText;
@@ -207,6 +209,7 @@ public class FlatTabbedPaneUI
showTabSeparators = UIManager.getBoolean( "TabbedPane.showTabSeparators" );
tabSeparatorsFullHeight = UIManager.getBoolean( "TabbedPane.tabSeparatorsFullHeight" );
hasFullBorder = UIManager.getBoolean( "TabbedPane.hasFullBorder" );
hiddenTabsNavigationStr = UIManager.getString( "TabbedPane.hiddenTabsNavigation" );
Locale l = tabPane.getLocale();
moreTabsButtonToolTipText = UIManager.getString( "TabbedPane.moreTabsButtonToolTipText", l );
@@ -285,16 +288,8 @@ public class FlatTabbedPaneUI
}
protected void installHiddenTabsNavigation() {
// initialize here because used in installHiddenTabsNavigation() before installDefaults() was invoked
String hiddenTabsNavigationStr = (String) tabPane.getClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION );
if( hiddenTabsNavigationStr == null )
hiddenTabsNavigationStr = UIManager.getString( "TabbedPane.hiddenTabsNavigation" );
hiddenTabsNavigation = parseHiddenTabsNavigation( hiddenTabsNavigationStr );
if( hiddenTabsNavigation != MORE_TABS_BUTTON ||
!isScrollTabLayout() ||
tabViewport == null )
return;
if( !isScrollTabLayout() || tabViewport == null )
return;
// At this point, BasicTabbedPaneUI already has installed
// TabbedPaneScrollLayout (in super.createLayoutManager()) and
@@ -550,10 +545,9 @@ public class FlatTabbedPaneUI
return;
}
// clip title if "more tabs" button is used
// clip title if our layout manager is used
// (normally this is done by invoker, but fails in this case)
if( hiddenTabsNavigation == MORE_TABS_BUTTON &&
tabViewport != null &&
if( tabViewport != null &&
(tabPlacement == TOP || tabPlacement == BOTTOM) )
{
Rectangle viewRect = tabViewport.getViewRect();
@@ -831,6 +825,13 @@ public class FlatTabbedPaneUI
return UIManager.getBoolean( "ScrollPane.smoothScrolling" );
}
protected int getHiddenTabsNavigation() {
String hiddenTabsNavigationStr = (String) tabPane.getClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION );
if( hiddenTabsNavigationStr == null )
hiddenTabsNavigationStr = this.hiddenTabsNavigationStr;
return parseHiddenTabsNavigation( hiddenTabsNavigationStr );
}
protected static int parseHiddenTabsNavigation( String str ) {
if( str == null )
return MORE_TABS_BUTTON;
@@ -1051,12 +1052,10 @@ public class FlatTabbedPaneUI
}
@Override
public Dimension getPreferredSize() {
Dimension size = super.getPreferredSize();
boolean horizontal = (direction == WEST || direction == EAST);
return new Dimension(
horizontal ? size.width : Math.max( size.width, maxTabWidth ),
horizontal ? Math.max( size.height, maxTabHeight ) : size.height );
protected void fireActionPerformed( ActionEvent event ) {
runWithOriginalLayoutManager( () -> {
super.fireActionPerformed( event );
} );
}
@Override
@@ -1386,13 +1385,8 @@ public class FlatTabbedPaneUI
case TABBED_PANE_SHOW_CONTENT_SEPARATOR:
case TABBED_PANE_HAS_FULL_BORDER:
case TABBED_PANE_TAB_HEIGHT:
tabPane.revalidate();
tabPane.repaint();
break;
case TABBED_PANE_HIDDEN_TABS_NAVIGATION:
uninstallHiddenTabsNavigation();
installHiddenTabsNavigation();
tabPane.revalidate();
tabPane.repaint();
break;
@@ -1516,20 +1510,34 @@ public class FlatTabbedPaneUI
delegate.layoutContainer( parent );
} );
// hide scroll buttons
boolean useMoreButton = (getHiddenTabsNavigation() == MORE_TABS_BUTTON);
// find backward/forward scroll buttons
JButton backwardButton = null;
JButton forwardButton = null;
for( Component c : tabPane.getComponents() ) {
if( c instanceof FlatScrollableTabButton && c.isVisible() )
c.setVisible( false );
if( c instanceof FlatScrollableTabButton ) {
int direction = ((FlatScrollableTabButton)c).getDirection();
if( direction == WEST || direction == NORTH )
backwardButton = (JButton) c;
else if( direction == EAST || direction == SOUTH )
forwardButton = (JButton) c;
}
}
if( !useMoreButton && (backwardButton == null || forwardButton == null) )
return; // should never occur
Rectangle bounds = tabPane.getBounds();
Insets insets = tabPane.getInsets();
int tabPlacement = tabPane.getTabPlacement();
Insets tabAreaInsets = getTabAreaInsets( tabPlacement );
Rectangle lastRect = rects[rects.length - 1];
Dimension moreButtonSize = moreTabsButton.getPreferredSize();
Dimension moreButtonSize = useMoreButton ? moreTabsButton.getPreferredSize() : null;
Dimension backwardButtonSize = useMoreButton ? null : backwardButton.getPreferredSize();
Dimension forwardButtonSize = useMoreButton ? null : forwardButton.getPreferredSize();
boolean leftToRight = tabPane.getComponentOrientation().isLeftToRight();
boolean moreTabsButtonVisible = false;
boolean buttonsVisible = false;
// TabbedPaneScrollLayout adds tabAreaInsets to tab coordinates,
// but we use it to position the viewport
@@ -1582,18 +1590,24 @@ public class FlatTabbedPaneUI
int txi = tx + tabAreaInsets.left;
int twi = tw - tabAreaInsets.left - tabAreaInsets.right;
// layout viewport and "more tabs" button
// layout viewport and buttons
int viewportWidth = twi;
int tabsWidth = leftToRight
? (lastRect.x + lastRect.width)
: (rects[0].x + rects[0].width - lastRect.x);
if( viewportWidth < tabsWidth ) {
// need "more tabs" button
viewportWidth = Math.max( viewportWidth - moreButtonSize.width, 0 );
// need buttons
buttonsVisible = true;
int buttonsWidth = useMoreButton ? moreButtonSize.width : (backwardButtonSize.width + forwardButtonSize.width);
viewportWidth = Math.max( viewportWidth - buttonsWidth, 0 );
moreTabsButton.setBounds( leftToRight ? (txi + twi - moreButtonSize.width) : txi, tyi, moreButtonSize.width, th );
tabViewport.setBounds( leftToRight ? txi : (txi + moreButtonSize.width), tyi, viewportWidth, th );
moreTabsButtonVisible = true;
if( useMoreButton )
moreTabsButton.setBounds( leftToRight ? (txi + twi - buttonsWidth) : txi, tyi, moreButtonSize.width, th );
else {
backwardButton.setBounds( leftToRight ? (txi + twi - buttonsWidth) : txi, tyi, backwardButtonSize.width, th );
forwardButton.setBounds( leftToRight ? (txi + twi - forwardButtonSize.width) : (txi + backwardButtonSize.width), tyi, forwardButtonSize.width, th );
}
tabViewport.setBounds( leftToRight ? txi : (txi + buttonsWidth), tyi, viewportWidth, th );
} else
tabViewport.setBounds( txi, tyi, viewportWidth, th );
@@ -1637,21 +1651,29 @@ public class FlatTabbedPaneUI
int tyi = ty + tabAreaInsets.top;
int thi = th - tabAreaInsets.top - tabAreaInsets.bottom;
// layout viewport and "more tabs" button
// layout viewport and buttons
int viewportHeight = thi;
int tabsHeight = lastRect.y + lastRect.height;
if( viewportHeight < tabsHeight ) {
// need "more tabs" button
viewportHeight = Math.max( viewportHeight - moreButtonSize.height, 0 );
// need buttons
buttonsVisible = true;
int buttonsHeight = useMoreButton ? moreButtonSize.height : (backwardButtonSize.height + forwardButtonSize.height);
viewportHeight = Math.max( viewportHeight - buttonsHeight, 0 );
moreTabsButton.setBounds( txi, tyi + thi - moreButtonSize.height, tw, moreButtonSize.height );
moreTabsButtonVisible = true;
if( useMoreButton )
moreTabsButton.setBounds( txi, tyi + thi - buttonsHeight, tw, moreButtonSize.height );
else {
backwardButton.setBounds( txi, tyi + thi - buttonsHeight, tw, backwardButtonSize.height );
forwardButton.setBounds( txi, tyi + thi - forwardButtonSize.height, tw, forwardButtonSize.height );
}
}
tabViewport.setBounds( txi, tyi, tw, viewportHeight );
}
// show/hide "more tabs" button
moreTabsButton.setVisible( moreTabsButtonVisible );
// show/hide buttons
moreTabsButton.setVisible( useMoreButton && buttonsVisible );
backwardButton.setVisible( !useMoreButton && buttonsVisible );
forwardButton.setVisible( !useMoreButton && buttonsVisible );
}
private void shiftTabs( int sx, int sy ) {