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TabbedPane: reduced duplicate code in nested classes FlatTabbedPaneLayout and FlatTabbedPaneScrollLayout

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This commit is contained in:
Karl Tauber
2023-12-22 20:13:43 +01:00
parent 4df34b3f9d
commit 9c69043b2c
1 changed files with 102 additions and 121 deletions
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223
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java
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@@ -3295,40 +3295,26 @@ debug*/
inBasicLayoutContainer = false;
}
Rectangle bounds = tabPane.getBounds();
Insets insets = tabPane.getInsets();
int tabPlacement = tabPane.getTabPlacement();
int tabAreaAlignment = getTabAreaAlignment();
Insets tabAreaInsets = getRealTabAreaInsets( tabPlacement );
boolean leftToRight = isLeftToRight();
// tab area bounds
Rectangle tr = getTabAreaLayoutBounds( tabPlacement, tabAreaInsets );
// layout leading and trailing components in tab area
if( tabPlacement == TOP || tabPlacement == BOTTOM ) {
// fix x-locations of tabs in right-to-left component orientation
if( !leftToRight )
shiftTabs( insets.left + tabAreaInsets.right + getTrailingPreferredWidth(), 0 );
// tab area height (maxTabHeight is zero if tab count is zero)
int tabAreaHeight = (maxTabHeight > 0)
? maxTabHeight
: Math.max(
Math.max( getLeadingPreferredHeight(), getTrailingPreferredHeight() ),
scale( clientPropertyInt( tabPane, TABBED_PANE_TAB_HEIGHT, tabHeight ) ) );
// tab area bounds
int tx = insets.left;
int ty = (tabPlacement == TOP)
? insets.top + tabAreaInsets.top
: (bounds.height - insets.bottom - tabAreaInsets.bottom - tabAreaHeight);
int tw = bounds.width - insets.left - insets.right;
int th = tabAreaHeight;
shiftTabs( tabPane.getInsets().left + tabAreaInsets.right + getTrailingPreferredWidth(), 0 );
int leadingWidth = getLeadingPreferredWidth();
int trailingWidth = getTrailingPreferredWidth();
// apply tab area alignment
if( runCount == 1 && rects.length > 0 ) {
int availWidth = tw - leadingWidth - trailingWidth - tabAreaInsets.left - tabAreaInsets.right;
int availWidth = tr.width - leadingWidth - trailingWidth - tabAreaInsets.left - tabAreaInsets.right;
int totalTabWidth = rectsTotalWidth( leftToRight );
int diff = availWidth - totalTabWidth;
@@ -3353,41 +3339,17 @@ debug*/
break;
}
} else if( rects.length == 0 )
trailingWidth = tw - leadingWidth;
trailingWidth = tr.width - leadingWidth;
// layout left component
Container leftComponent = leftToRight ? leadingComponent : trailingComponent;
if( leftComponent != null ) {
int leftWidth = leftToRight ? leadingWidth : trailingWidth;
leftComponent.setBounds( tx, ty, leftWidth, th );
}
// layout right component
Container rightComponent = leftToRight ? trailingComponent : leadingComponent;
if( rightComponent != null ) {
int rightWidth = leftToRight ? trailingWidth : leadingWidth;
rightComponent.setBounds( tx + tw - rightWidth, ty, rightWidth, th );
}
// layout left and right components
layoutLeftAndRightComponents( tr, leadingWidth, trailingWidth, leftToRight );
} else { // LEFT and RIGHT tab placement
// tab area width (maxTabWidth is zero if tab count is zero)
int tabAreaWidth = (maxTabWidth > 0)
? maxTabWidth
: Math.max( getLeadingPreferredWidth(), getTrailingPreferredWidth() );
// tab area bounds
int tx = (tabPlacement == LEFT)
? insets.left + tabAreaInsets.left
: (bounds.width - insets.right - tabAreaInsets.right - tabAreaWidth);
int ty = insets.top;
int tw = tabAreaWidth;
int th = bounds.height - insets.top - insets.bottom;
int topHeight = getLeadingPreferredHeight();
int bottomHeight = getTrailingPreferredHeight();
// apply tab area alignment
if( runCount == 1 && rects.length > 0 ) {
int availHeight = th - topHeight - bottomHeight - tabAreaInsets.top - tabAreaInsets.bottom;
int availHeight = tr.height - topHeight - bottomHeight - tabAreaInsets.top - tabAreaInsets.bottom;
int totalTabHeight = rectsTotalHeight();
int diff = availHeight - totalTabHeight;
@@ -3412,17 +3374,75 @@ debug*/
break;
}
} else if( rects.length == 0 )
bottomHeight = th - topHeight;
bottomHeight = tr.height - topHeight;
// layout top component
if( leadingComponent != null )
leadingComponent.setBounds( tx, ty, tw, topHeight );
// layout bottom component
if( trailingComponent != null )
trailingComponent.setBounds( tx, ty + th - bottomHeight, tw, bottomHeight );
// layout top and bottom components
layoutTopAndBottomComponents( tr, topHeight, bottomHeight );
}
}
Rectangle getTabAreaLayoutBounds( int tabPlacement, Insets tabAreaInsets ) {
Rectangle bounds = tabPane.getBounds();
Insets insets = tabPane.getInsets();
Rectangle tr = new Rectangle();
if( tabPlacement == TOP || tabPlacement == BOTTOM ) {
// tab area height (maxTabHeight is zero if tab count is zero)
int tabAreaHeight = (maxTabHeight > 0)
? maxTabHeight
: Math.max(
Math.max( getLeadingPreferredHeight(), getTrailingPreferredHeight() ),
scale( clientPropertyInt( tabPane, TABBED_PANE_TAB_HEIGHT, tabHeight ) ) );
// tab area bounds
tr.x = insets.left;
tr.y = (tabPlacement == TOP)
? insets.top + tabAreaInsets.top
: (bounds.height - insets.bottom - tabAreaInsets.bottom - tabAreaHeight);
tr.width = bounds.width - insets.left - insets.right;
tr.height = tabAreaHeight;
} else { // LEFT and RIGHT tab placement
// tab area width (maxTabWidth is zero if tab count is zero)
int tabAreaWidth = (maxTabWidth > 0)
? maxTabWidth
: Math.max( getLeadingPreferredWidth(), getTrailingPreferredWidth() );
// tab area bounds
tr.x = (tabPlacement == LEFT)
? insets.left + tabAreaInsets.left
: (bounds.width - insets.right - tabAreaInsets.right - tabAreaWidth);
tr.y = insets.top;
tr.width = tabAreaWidth;
tr.height = bounds.height - insets.top - insets.bottom;
}
return tr;
}
void layoutLeftAndRightComponents( Rectangle tr, int leadingWidth, int trailingWidth, boolean leftToRight ) {
// layout left component
Container leftComponent = leftToRight ? leadingComponent : trailingComponent;
if( leftComponent != null ) {
int leftWidth = leftToRight ? leadingWidth : trailingWidth;
leftComponent.setBounds( tr.x, tr.y, leftWidth, tr.height );
}
// layout right component
Container rightComponent = leftToRight ? trailingComponent : leadingComponent;
if( rightComponent != null ) {
int rightWidth = leftToRight ? trailingWidth : leadingWidth;
rightComponent.setBounds( tr.x + tr.width - rightWidth, tr.y, rightWidth, tr.height );
}
}
void layoutTopAndBottomComponents( Rectangle tr, int topHeight, int bottomHeight ) {
// layout top component
if( leadingComponent != null )
leadingComponent.setBounds( tr.x, tr.y, tr.width, topHeight );
// layout bottom component
if( trailingComponent != null )
trailingComponent.setBounds( tr.x, tr.y + tr.height - bottomHeight, tr.width, bottomHeight );
}
}
//---- class FlatTabbedPaneScrollLayout -----------------------------------
@@ -3540,8 +3560,6 @@ debug*/
if( backwardButton == null || forwardButton == null )
return; // should never occur
Rectangle bounds = tabPane.getBounds();
Insets insets = tabPane.getInsets();
int tabPlacement = tabPane.getTabPlacement();
int tabAreaAlignment = getTabAreaAlignment();
Insets tabAreaInsets = getRealTabAreaInsets( tabPlacement );
@@ -3564,6 +3582,9 @@ debug*/
viewSize.height - (horizontal ? 0 : tabAreaInsets.top) ) );
}
// tab area bounds
Rectangle tr = getTabAreaLayoutBounds( tabPlacement, tabAreaInsets );
// layout tab area
if( tabPlacement == TOP || tabPlacement == BOTTOM ) {
// avoid that tab area "jump" to the right when backward button becomes hidden
@@ -3573,24 +3594,9 @@ debug*/
tabViewport.setViewPosition( new Point( 0, viewPosition.y ) );
}
// tab area height (maxTabHeight is zero if tab count is zero)
int tabAreaHeight = (maxTabHeight > 0)
? maxTabHeight
: Math.max(
Math.max( getLeadingPreferredHeight(), getTrailingPreferredHeight() ),
scale( clientPropertyInt( tabPane, TABBED_PANE_TAB_HEIGHT, tabHeight ) ) );
// tab area bounds
int tx = insets.left;
int ty = (tabPlacement == TOP)
? insets.top + tabAreaInsets.top
: (bounds.height - insets.bottom - tabAreaInsets.bottom - tabAreaHeight);
int tw = bounds.width - insets.left - insets.right;
int th = tabAreaHeight;
int leadingWidth = getLeadingPreferredWidth();
int trailingWidth = getTrailingPreferredWidth();
int availWidth = tw - leadingWidth - trailingWidth - tabAreaInsets.left - tabAreaInsets.right;
int availWidth = tr.width - leadingWidth - trailingWidth - tabAreaInsets.left - tabAreaInsets.right;
int totalTabWidth = (rects.length > 0) ? rectsTotalWidth( leftToRight ) : 0;
// apply tab area alignment
@@ -3616,24 +3622,17 @@ debug*/
break;
}
} else if( rects.length == 0 )
trailingWidth = tw - leadingWidth;
trailingWidth = tr.width - leadingWidth;
// layout left component
Container leftComponent = leftToRight ? leadingComponent : trailingComponent;
int leftWidth = leftToRight ? leadingWidth : trailingWidth;
if( leftComponent != null )
leftComponent.setBounds( tx, ty, leftWidth, th );
// layout right component
Container rightComponent = leftToRight ? trailingComponent : leadingComponent;
int rightWidth = leftToRight ? trailingWidth : leadingWidth;
if( rightComponent != null )
rightComponent.setBounds( tx + tw - rightWidth, ty, rightWidth, th );
// layout left and right components
layoutLeftAndRightComponents( tr, leadingWidth, trailingWidth, leftToRight );
// layout tab viewport and buttons
if( rects.length > 0 ) {
int txi = tx + leftWidth + (leftToRight ? tabAreaInsets.left : tabAreaInsets.right);
int twi = tw - leftWidth - rightWidth - tabAreaInsets.left - tabAreaInsets.right;
int leftWidth = leftToRight ? leadingWidth : trailingWidth;
int rightWidth = leftToRight ? trailingWidth : leadingWidth;
int txi = tr.x + leftWidth + (leftToRight ? tabAreaInsets.left : tabAreaInsets.right);
int twi = tr.width - leftWidth - rightWidth - tabAreaInsets.left - tabAreaInsets.right;
// layout viewport and buttons
int x = txi;
@@ -3645,7 +3644,7 @@ debug*/
// layout more button on trailing side
if( useMoreTabsButton ) {
int buttonWidth = moreTabsButton.getPreferredSize().width;
moreTabsButton.setBounds( leftToRight ? (x + w - buttonWidth) : x, ty, buttonWidth, th );
moreTabsButton.setBounds( leftToRight ? (x + w - buttonWidth) : x, tr.y, buttonWidth, tr.height );
x += leftToRight ? 0 : buttonWidth;
w -= buttonWidth;
moreTabsButtonVisible = true;
@@ -3654,7 +3653,7 @@ debug*/
// layout forward button on trailing side
if( !hideDisabledScrollButtons || forwardButton.isEnabled() ) {
int buttonWidth = forwardButton.getPreferredSize().width;
forwardButton.setBounds( leftToRight ? (x + w - buttonWidth) : x, ty, buttonWidth, th );
forwardButton.setBounds( leftToRight ? (x + w - buttonWidth) : x, tr.y, buttonWidth, tr.height );
x += leftToRight ? 0 : buttonWidth;
w -= buttonWidth;
forwardButtonVisible = true;
@@ -3665,11 +3664,11 @@ debug*/
int buttonWidth = backwardButton.getPreferredSize().width;
if( trailingScrollButtons ) {
// on trailing side
backwardButton.setBounds( leftToRight ? (x + w - buttonWidth) : x, ty, buttonWidth, th );
backwardButton.setBounds( leftToRight ? (x + w - buttonWidth) : x, tr.y, buttonWidth, tr.height );
x += leftToRight ? 0 : buttonWidth;
} else {
// on leading side
backwardButton.setBounds( leftToRight ? x : (x + w - buttonWidth), ty, buttonWidth, th );
backwardButton.setBounds( leftToRight ? x : (x + w - buttonWidth), tr.y, buttonWidth, tr.height );
x += leftToRight ? buttonWidth : 0;
}
w -= buttonWidth;
@@ -3678,7 +3677,7 @@ debug*/
}
}
tabViewport.setBounds( x, ty, w, th );
tabViewport.setBounds( x, tr.y, w, tr.height );
if( !leftToRight ) {
// layout viewport so that we can get correct view width below
@@ -3696,22 +3695,9 @@ debug*/
tabViewport.setViewPosition( new Point( viewPosition.x, 0 ) );
}
// tab area width (maxTabWidth is zero if tab count is zero)
int tabAreaWidth = (maxTabWidth > 0)
? maxTabWidth
: Math.max( getLeadingPreferredWidth(), getTrailingPreferredWidth() );
// tab area bounds
int tx = (tabPlacement == LEFT)
? insets.left + tabAreaInsets.left
: (bounds.width - insets.right - tabAreaInsets.right - tabAreaWidth);
int ty = insets.top;
int tw = tabAreaWidth;
int th = bounds.height - insets.top - insets.bottom;
int topHeight = getLeadingPreferredHeight();
int bottomHeight = getTrailingPreferredHeight();
int availHeight = th - topHeight - bottomHeight - tabAreaInsets.top - tabAreaInsets.bottom;
int availHeight = tr.height - topHeight - bottomHeight - tabAreaInsets.top - tabAreaInsets.bottom;
int totalTabHeight = (rects.length > 0) ? rectsTotalHeight() : 0;
// apply tab area alignment
@@ -3737,20 +3723,15 @@ debug*/
break;
}
} else if( rects.length == 0 )
bottomHeight = th - topHeight;
bottomHeight = tr.height - topHeight;
// layout top component
if( leadingComponent != null )
leadingComponent.setBounds( tx, ty, tw, topHeight );
// layout bottom component
if( trailingComponent != null )
trailingComponent.setBounds( tx, ty + th - bottomHeight, tw, bottomHeight );
// layout top and bottom components
layoutTopAndBottomComponents( tr, topHeight, bottomHeight );
// layout tab viewport and buttons
if( rects.length > 0 ) {
int tyi = ty + topHeight + tabAreaInsets.top;
int thi = th - topHeight - bottomHeight - tabAreaInsets.top - tabAreaInsets.bottom;
int tyi = tr.y + topHeight + tabAreaInsets.top;
int thi = tr.height - topHeight - bottomHeight - tabAreaInsets.top - tabAreaInsets.bottom;
// layout viewport and buttons
int y = tyi;
@@ -3762,7 +3743,7 @@ debug*/
// layout more button on bottom side
if( useMoreTabsButton ) {
int buttonHeight = moreTabsButton.getPreferredSize().height;
moreTabsButton.setBounds( tx, y + h - buttonHeight, tw, buttonHeight );
moreTabsButton.setBounds( tr.x, y + h - buttonHeight, tr.width, buttonHeight );
h -= buttonHeight;
moreTabsButtonVisible = true;
}
@@ -3770,7 +3751,7 @@ debug*/
// layout forward button on bottom side
if( !hideDisabledScrollButtons || forwardButton.isEnabled() ) {
int buttonHeight = forwardButton.getPreferredSize().height;
forwardButton.setBounds( tx, y + h - buttonHeight, tw, buttonHeight );
forwardButton.setBounds( tr.x, y + h - buttonHeight, tr.width, buttonHeight );
h -= buttonHeight;
forwardButtonVisible = true;
}
@@ -3780,10 +3761,10 @@ debug*/
int buttonHeight = backwardButton.getPreferredSize().height;
if( trailingScrollButtons ) {
// on bottom side
backwardButton.setBounds( tx, y + h - buttonHeight, tw, buttonHeight );
backwardButton.setBounds( tr.x, y + h - buttonHeight, tr.width, buttonHeight );
} else {
// on top side
backwardButton.setBounds( tx, y, tw, buttonHeight );
backwardButton.setBounds( tr.x, y, tr.width, buttonHeight );
y += buttonHeight;
}
h -= buttonHeight;
@@ -3792,7 +3773,7 @@ debug*/
}
}
tabViewport.setBounds( tx, y, tw, h );
tabViewport.setBounds( tr.x, y, tr.width, h );
}
}