inprogress

[jalview.git] / forester / java / src / org / forester / archaeopteryx / TreeFontSet.java

diff --git a/forester/java/src/org/forester/archaeopteryx/TreeFontSet.java b/forester/java/src/org/forester/archaeopteryx/TreeFontSet.java
index d21e0b8..a07c87a 100644 (file)
--- a/forester/java/src/org/forester/archaeopteryx/TreeFontSet.java
+++ b/forester/java/src/org/forester/archaeopteryx/TreeFontSet.java
@@ -36,10 +36,10 @@ import java.awt.FontMetrics;
  */
 public final class TreeFontSet {
 
-    final static float          SMALL_FONTS_BASE      = 8;
-    private final static String DEFAULT_FONT          = "Verdana";
-    private final static float  FONT_SIZE_CHANGE_STEP = 1.0f;
-    static final int            BOLD_AND_ITALIC       = Font.BOLD + Font.ITALIC;
+    final static float          SMALL_FONTS_BASE          = 8;
+    private final static String DEFAULT_FONT              = "Verdana";
+    final static float          FONT_SIZE_CHANGE_STEP     = 1.0f;
+    static final int            BOLD_AND_ITALIC           = Font.BOLD + Font.ITALIC;
     // the owner (needed to get font metrics)
     private final MainPanel     _owner;
     // The fonts
@@ -52,6 +52,10 @@ public final class TreeFontSet {
     private Font                _large_font_system;
     private Font                _small_italic_font_system;
     private Font                _large_italic_font_system;
+    private Font                _small_font_memory;
+    private Font                _large_font_memory;
+    private Font                _small_italic_font_memory;
+    private Font                _large_italic_font_memory;
     // Handy holders for font metrics
     public FontMetrics          _fm_small;
     FontMetrics                 _fm_large;
@@ -60,10 +64,11 @@ public final class TreeFontSet {
     FontMetrics                 _fm_large_italic;
     FontMetrics                 _fm_large_italic_bold;
     // hold font measurements
-    int                         _small_max_descent    = 0;
-    int                         _small_max_ascent     = 0;
+    int                         _small_max_descent        = 0;
+    int                         _small_max_ascent         = 0;
     private final int           _min;
     private final int           _max;
+    private boolean             _decreased_size_by_system = false;
 
     TreeFontSet( final MainPanel owner ) {
         _owner = owner;
@@ -76,11 +81,14 @@ public final class TreeFontSet {
         return _small_font;
     }
 
-    public Font getSmallFontSystem() {
-        return _small_font_system;
-    }
-
-    void decreaseFontSize( final int min ) {
+    void decreaseFontSize( final int min, final boolean decreased_size_by_system ) {
+        if ( decreased_size_by_system && !isDecreasedSizeBySystem() ) {
+            _small_font_memory = _small_font;
+            _large_font_memory = _large_font;
+            _small_italic_font_memory = _small_italic_font;
+            _large_italic_font_memory = _large_italic_font;
+        }
+        setDecreasedSizeBySystem( decreased_size_by_system );
         if ( _large_font.getSize() >= min ) {
             _small_font = _small_font.deriveFont( _small_font.getSize() - FONT_SIZE_CHANGE_STEP );
             _large_font = _large_font.deriveFont( _large_font.getSize() - FONT_SIZE_CHANGE_STEP );
@@ -90,6 +98,10 @@ public final class TreeFontSet {
         }
     }
 
+    Font getLargeFontMemory() {
+        return _large_font_memory;
+    }
+
     Font getBaseFont() {
         return _base_font;
     }
@@ -106,6 +118,10 @@ public final class TreeFontSet {
         return _large_italic_font_system;
     }
 
+    Font getSmallFontSystem() {
+        return _small_font_system;
+    }
+
     Font getSmallItalicFont() {
         return _small_italic_font;
     }
@@ -122,7 +138,12 @@ public final class TreeFontSet {
         setupFontMetrics();
     }
 
+    boolean isDecreasedSizeBySystem() {
+        return _decreased_size_by_system;
+    }
+
     void largeFonts() {
+        setDecreasedSizeBySystem( false );
         _small_font = _small_font.deriveFont( 12f );
         _large_font = _large_font.deriveFont( 14f );
         _small_italic_font = _small_italic_font.deriveFont( 12f );
@@ -131,6 +152,7 @@ public final class TreeFontSet {
     }
 
     void mediumFonts() {
+        setDecreasedSizeBySystem( false );
         _small_font = _small_font.deriveFont( 8f );
         _large_font = _large_font.deriveFont( 10f );
         _small_italic_font = _small_italic_font.deriveFont( 8f );
@@ -148,6 +170,7 @@ public final class TreeFontSet {
     }
 
     void smallFonts() {
+        setDecreasedSizeBySystem( false );
         _small_font = _small_font.deriveFont( SMALL_FONTS_BASE - 1 );
         _large_font = _large_font.deriveFont( SMALL_FONTS_BASE );
         _small_italic_font = _small_italic_font.deriveFont( SMALL_FONTS_BASE - 1 );
@@ -156,6 +179,7 @@ public final class TreeFontSet {
     }
 
     void superTinyFonts() {
+        setDecreasedSizeBySystem( false );
         _small_font = _small_font.deriveFont( 2f );
         _large_font = _large_font.deriveFont( 3f );
         _small_italic_font = _small_italic_font.deriveFont( 2f );
@@ -164,6 +188,7 @@ public final class TreeFontSet {
     }
 
     void tinyFonts() {
+        setDecreasedSizeBySystem( false );
         _small_font = _small_font.deriveFont( 5f );
         _large_font = _large_font.deriveFont( 6f );
         _small_italic_font = _small_italic_font.deriveFont( 5f );
@@ -189,9 +214,17 @@ public final class TreeFontSet {
         _large_font_system = new Font( getBaseFont().getFontName(), getBaseFont().getStyle(), getBaseFont().getSize() );
         _small_italic_font_system = new Font( getBaseFont().getFontName(), italic, small_size );
         _large_italic_font_system = new Font( getBaseFont().getFontName(), italic, getBaseFont().getSize() );
+        _small_font_memory = _small_font;
+        _large_font_memory = _large_font;
+        _small_italic_font_memory = _small_italic_font;
+        _large_italic_font_memory = _large_italic_font;
         setupFontMetrics();
     }
 
+    private void setDecreasedSizeBySystem( final boolean decreased_size_by_system ) {
+        _decreased_size_by_system = decreased_size_by_system;
+    }
+
     private void setupFontMetrics() {
         _fm_small = _owner.getFontMetrics( _small_font );
         _fm_large = _owner.getFontMetrics( _large_font );