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package javax.swing.plaf.metal; |
package javax.swing.plaf.metal; |
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import java.awt.Graphics; |
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import java.awt.LayoutManager; |
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import java.util.HashMap; |
import java.util.HashMap; |
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import javax.swing.JComponent; |
import javax.swing.JComponent; |
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import javax.swing.JTabbedPane; |
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import javax.swing.plaf.ComponentUI; |
import javax.swing.plaf.ComponentUI; |
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import javax.swing.plaf.basic.BasicTabbedPaneUI; |
import javax.swing.plaf.basic.BasicTabbedPaneUI; |
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/** |
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* A UI delegate used for the {@link JTabbedPane} component in the |
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* {@link MetalLookAndFeel}. |
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*/ |
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public class MetalTabbedPaneUI |
public class MetalTabbedPaneUI |
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extends BasicTabbedPaneUI |
extends BasicTabbedPaneUI |
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{ |
{ |
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/** |
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* A {@link LayoutManager} responsible for placing all the tabs and the |
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* visible component inside the {@link JTabbedPane}. This class is only used |
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* for {@link JTabbedPane#WRAP_TAB_LAYOUT}. |
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* |
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* @specnote Apparently this class was intended to be protected, |
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* but was made public by a compiler bug and is now |
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* public for compatibility. |
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*/ |
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public class TabbedPaneLayout |
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extends BasicTabbedPaneUI.TabbedPaneLayout |
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{ |
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/** |
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* Creates a new instance of the layout manager. |
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*/ |
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public TabbedPaneLayout() |
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{ |
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} |
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/** |
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* Overridden to do nothing, because tab runs are not rotated in the |
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* {@link MetalLookAndFeel}. |
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* |
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* @param tabPlacement the tab placement (one of {@link #TOP}, |
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* {@link #BOTTOM}, {@link #LEFT} or {@link #RIGHT}). |
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* @param selectedRun the index of the selected run. |
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*/ |
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protected void rotateTabRuns(int tabPlacement, int selectedRun) |
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{ |
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// do nothing, because tab runs are not rotated in the MetalLookAndFeel |
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} |
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/** |
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* Overridden to do nothing, because the selected tab does not have extra |
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* padding in the {@link MetalLookAndFeel}. |
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* |
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* @param tabPlacement the tab placement (one of {@link #TOP}, |
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* {@link #BOTTOM}, {@link #LEFT} or {@link #RIGHT}). |
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* @param selectedIndex the index of the selected tab. |
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*/ |
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protected void padSelectedTab(int tabPlacement, int selectedIndex) |
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{ |
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// do nothing, because the selected tab does not have extra padding in |
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// the MetalLookAndFeel |
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} |
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} |
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/** The shared UI instance for JTabbedPanes. */ |
/** The shared UI instance for JTabbedPanes. */ |
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private static HashMap instances = null; |
private static HashMap instances = null; |
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return instance; |
return instance; |
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} |
} |
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/** |
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* Creates and returns an instance of {@link TabbedPaneLayout}. |
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* |
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* @return A layout manager used by this UI delegate. |
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*/ |
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protected LayoutManager createLayoutManager() |
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{ |
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return new TabbedPaneLayout(); |
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} |
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/** |
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* Paints the border for a single tab. |
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* |
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* @param g the graphics device. |
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* @param tabPlacement the tab placement ({@link #TOP}, {@link #LEFT}, |
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* {@link #BOTTOM} or {@link #RIGHT}). |
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* @param tabIndex the index of the tab to draw the border for. |
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* @param x the x-coordinate for the tab's bounding rectangle. |
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* @param y the y-coordinate for the tab's bounding rectangle. |
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* @param w the width for the tab's bounding rectangle. |
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* @param h the height for the tab's bounding rectangle. |
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* @param isSelected indicates whether or not the tab is selected. |
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*/ |
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protected void paintTabBorder(Graphics g, int tabPlacement, int tabIndex, |
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int x, int y, int w, int h, boolean isSelected) |
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{ |
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if (tabPlacement == TOP) |
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paintTopTabBorder(tabIndex, g, x, y, w, h, 0, 0, isSelected); |
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else if (tabPlacement == LEFT) |
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paintLeftTabBorder(tabIndex, g, x, y, w, h, 0, 0, isSelected); |
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else if (tabPlacement == BOTTOM) |
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paintBottomTabBorder(tabIndex, g, x, y, w, h, 0, 0, isSelected); |
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else if (tabPlacement == RIGHT) |
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paintRightTabBorder(tabIndex, g, x, y, w, h, 0, 0, isSelected); |
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else |
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throw new AssertionError("Unrecognised 'tabPlacement' argument."); |
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} |
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/** |
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* Paints the border for a tab assuming that the tab position is at the top |
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* ({@link #TOP}). |
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* |
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* @param tabIndex the tab index. |
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* @param g the graphics device. |
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* @param x the x-coordinate for the tab's bounding rectangle. |
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* @param y the y-coordinate for the tab's bounding rectangle. |
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* @param w the width for the tab's bounding rectangle. |
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* @param h the height for the tab's bounding rectangle. |
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* @param btm ??? |
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* @param rght ??? |
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* @param isSelected indicates whether the tab is selected. |
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*/ |
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protected void paintTopTabBorder(int tabIndex, Graphics g, int x, int y, |
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int w, int h, int btm, int rght, boolean isSelected) |
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{ |
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if (isSelected) |
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{ |
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g.setColor(MetalLookAndFeel.getControlHighlight()); |
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g.drawLine(x + 1, y + h, x + 1, y + 6); |
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g.drawLine(x + 1, y + 6, x + 6, y + 1); |
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g.drawLine(x + 6, y + 1, x + w - 1, y + 1); |
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} |
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g.setColor(MetalLookAndFeel.getControlDarkShadow()); |
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g.drawLine(x, y + h - 1, x, y + 6); |
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g.drawLine(x, y + 6, x + 6, y); |
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g.drawLine(x + 6, y, x + w, y); |
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g.drawLine(x + w, y, x + w, y + h - 1); |
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} |
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/** |
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* Paints the border for a tab assuming that the tab position is at the left |
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* ({@link #LEFT}). |
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* |
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* @param tabIndex the tab index. |
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* @param g the graphics device. |
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* @param x the x-coordinate for the tab's bounding rectangle. |
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* @param y the y-coordinate for the tab's bounding rectangle. |
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* @param w the width for the tab's bounding rectangle. |
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* @param h the height for the tab's bounding rectangle. |
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* @param btm ??? |
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* @param rght ??? |
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* @param isSelected indicates whether the tab is selected. |
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*/ |
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protected void paintLeftTabBorder(int tabIndex, Graphics g, int x, int y, |
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int w, int h, int btm, int rght, boolean isSelected) |
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{ |
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if (isSelected) |
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{ |
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g.setColor(MetalLookAndFeel.getControlHighlight()); |
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g.drawLine(x + 1, y + h, x + 1, y + 6); |
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g.drawLine(x + 1, y + 6, x + 6, y + 1); |
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g.drawLine(x + 6, y + 1, x + w - 1, y + 1); |
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} |
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g.setColor(MetalLookAndFeel.getControlDarkShadow()); |
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g.drawLine(x, y + h, x, y + 6); |
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g.drawLine(x, y + 6, x + 6, y); |
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g.drawLine(x + 6, y, x + w - 1, y); |
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g.drawLine(x, y + h, x + w - 1, y + h); |
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} |
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/** |
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* Paints the border for a tab assuming that the tab position is at the right |
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* ({@link #RIGHT}). |
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* |
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* @param tabIndex the tab index. |
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* @param g the graphics device. |
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* @param x the x-coordinate for the tab's bounding rectangle. |
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* @param y the y-coordinate for the tab's bounding rectangle. |
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* @param w the width for the tab's bounding rectangle. |
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* @param h the height for the tab's bounding rectangle. |
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* @param btm ??? |
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* @param rght ??? |
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* @param isSelected indicates whether the tab is selected. |
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*/ |
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protected void paintRightTabBorder(int tabIndex, Graphics g, int x, int y, |
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int w, int h, int btm, int rght, boolean isSelected) |
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{ |
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if (isSelected) |
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{ |
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g.setColor(MetalLookAndFeel.getControlHighlight()); |
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g.drawLine(x, y + 1, x + w - 7, y + 1); |
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g.drawLine(x + w - 7, y + 1, x + w - 1, y + 7); |
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} |
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g.setColor(MetalLookAndFeel.getControlDarkShadow()); |
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g.drawLine(x, y, x + w - 7, y); |
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g.drawLine(x + w - 7, y, x + w - 1, y + 6); |
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g.drawLine(x + w - 1, y + 6, x + w - 1, y + h - 1); |
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g.drawLine(x + w - 1, y + h, x, y + h); |
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} |
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/** |
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* Paints the border for a tab assuming that the tab position is at the bottom |
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* ({@link #BOTTOM}). |
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* |
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* @param tabIndex the tab index. |
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* @param g the graphics device. |
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* @param x the x-coordinate for the tab's bounding rectangle. |
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* @param y the y-coordinate for the tab's bounding rectangle. |
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* @param w the width for the tab's bounding rectangle. |
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* @param h the height for the tab's bounding rectangle. |
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* @param btm ??? |
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* @param rght ??? |
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* @param isSelected indicates whether the tab is selected. |
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*/ |
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protected void paintBottomTabBorder(int tabIndex, Graphics g, int x, int y, |
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int w, int h, int btm, int rght, boolean isSelected) |
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{ |
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if (isSelected) |
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{ |
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g.setColor(MetalLookAndFeel.getControlHighlight()); |
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g.drawLine(x + 1, y, x + 1, y + h - 7); |
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g.drawLine(x + 1, y + h - 7, x + 7, y + h - 1); |
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} |
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g.setColor(MetalLookAndFeel.getControlDarkShadow()); |
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g.drawLine(x, y, x, y + h - 7); |
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g.drawLine(x, y + h - 7, x + 6, y + h - 1); |
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g.drawLine(x + 6, y + h - 1, x + w, y + h - 1); |
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g.drawLine(x + w, y + h - 1, x + w, y); |
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} |
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/** |
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* Paints the background for a tab. |
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* |
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* @param g the graphics device. |
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* @param tabPlacement the tab placement ({@link #TOP}, {@link #LEFT}, |
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* {@link #BOTTOM} or {@link #RIGHT}). |
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* @param tabIndex the index of the tab to draw the border for. |
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* @param x the x-coordinate for the tab's bounding rectangle. |
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* @param y the y-coordinate for the tab's bounding rectangle. |
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* @param w the width for the tab's bounding rectangle. |
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* @param h the height for the tab's bounding rectangle. |
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* @param isSelected indicates whether or not the tab is selected. |
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*/ |
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protected void paintTabBackground(Graphics g, int tabPlacement, |
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int tabIndex, int x, int y, int w, int h, boolean isSelected) |
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{ |
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if (isSelected) |
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g.setColor(MetalLookAndFeel.getControl()); |
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else |
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g.setColor(MetalLookAndFeel.getControlShadow()); |
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int[] px, py; |
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if (tabPlacement == TOP) |
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{ |
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px = new int[] {x + 6, x + w - 1, x + w -1, x + 2, x + 2}; |
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py = new int[] {y + 2, y + 2, y + h - 1, y + h -1, y + 6}; |
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} |
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else if (tabPlacement == LEFT) |
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{ |
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px = new int[] {x + 6, x + w - 1, x + w -1, x + 2, x + 2}; |
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py = new int[] {y + 2, y + 2, y + h - 1, y + h -1, y + 6}; |
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} |
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else if (tabPlacement == BOTTOM) |
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{ |
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px = new int[] {x + 2, x + w - 1, x + w -1, x + 8, x + 2}; |
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py = new int[] {y, y, y + h - 1, y + h -1, y + h - 7}; |
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} |
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else if (tabPlacement == RIGHT) |
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{ |
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px = new int[] {x + 2, x + w - 7, x + w - 1, x + w - 1, x + 2}; |
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py = new int[] {y + 2, y + 2, y + 7, y + h -1, y + h - 1}; |
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} |
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else |
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throw new AssertionError("Unrecognised 'tabPlacement' argument."); |
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g.fillPolygon(px, py, 5); |
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} |
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/** |
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* Returns <code>true</code> if the tabs in the specified run should be |
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* padded to make the run fill the width/height of the {@link JTabbedPane}. |
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* |
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* @param tabPlacement the tab placement for the {@link JTabbedPane} (one of |
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* {@link #TOP}, {@link #BOTTOM}, {@link #LEFT} and {@link #RIGHT}). |
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* @param run the run index. |
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* |
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* @return A boolean. |
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*/ |
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protected boolean shouldPadTabRun(int tabPlacement, int run) |
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{ |
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// as far as I can tell, all runs should be padded except the last run |
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// (which is drawn at the very top for tabPlacement == TOP) |
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return run < this.runCount - 1; |
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} |
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} |
} |