Fix for some font rendering problems on linux

Author: cmaglie

app/src/cc/arduino/view/SplashScreenHelper.java

@@ -35,6 +35,8 @@
 import java.awt.geom.Rectangle2D;
 import java.util.Map;
 
+import processing.app.Theme;
+
 public class SplashScreenHelper {
 
   private static final int X_OFFSET = 0;
@@ -96,7 +98,7 @@ private void eraseLastStatusText() {
   private void prepareTextAreaAndGraphics() {
     splashTextArea = new Rectangle2D.Double(X_OFFSET, Y_OFFSET, TEXTAREA_WIDTH, TEXTAREA_HEIGHT);
 
-    splashGraphics = splash.createGraphics();
+    splashGraphics = Theme.setupGraphics2D(splash.createGraphics());
 
     if (desktopHints != null) {
       splashGraphics.addRenderingHints(desktopHints);

app/src/processing/app/Base.java

@@ -1745,13 +1745,10 @@ public void handleAbout() {
     final Image image = Theme.getLibImage("about", activeEditor,
                                           Theme.scale(475), Theme.scale(300));
     final Window window = new Window(activeEditor) {
-      public void paint(Graphics g) {
+      public void paint(Graphics graphics) {
+        Graphics2D g = Theme.setupGraphics2D(graphics);
         g.drawImage(image, 0, 0, null);
 
-        Graphics2D g2 = (Graphics2D) g;
-        g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
-                RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
-
         Font f = new Font("SansSerif", Font.PLAIN, Theme.scale(11));
         g.setFont(f);
         g.setColor(Color.white);

app/src/processing/app/EditorHeader.java

@@ -222,18 +222,13 @@ public void paintComponent(Graphics screen) {
       offscreen = createImage(imageW, imageH);
     }
 
-    Graphics g = offscreen.getGraphics();
+    Graphics2D g = Theme.setupGraphics2D(offscreen.getGraphics());
     if (font == null) {
       font = Theme.getFont("header.text.font");
     }
     g.setFont(font);  // need to set this each time through
     metrics = g.getFontMetrics();
     fontAscent = metrics.getAscent();
-    //}
-
-    //Graphics2D g2 = (Graphics2D) g;
-    //g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
-    //                    RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
 
     // set the background for the offscreen
     g.setColor(backgroundColor);
@@ -255,10 +250,8 @@ public void paintComponent(Graphics screen) {
       // if modified, add the li'l glyph next to the name
       String text = "  " + codeName + (code.isModified() ? " \u00A7" : "  ");
 
-      Graphics2D g2 = (Graphics2D) g;
-
       int textWidth = (int)
-        font.getStringBounds(text, g2.getFontRenderContext()).getWidth();
+        font.getStringBounds(text, g.getFontRenderContext()).getWidth();
 
       int pieceCount = 2 + (textWidth / PIECE_WIDTH);
       int pieceWidth = pieceCount * PIECE_WIDTH;

app/src/processing/app/EditorLineStatus.java

@@ -89,7 +89,8 @@ public void set(int newStart, int newStop) {
     repaint();
   }
 
-  public void paintComponent(Graphics g) {
+  public void paintComponent(Graphics graphics) {
+    Graphics2D g = Theme.setupGraphics2D(graphics);
     if (name == "" && serialport == "") {
       PreferencesMap boardPreferences = BaseNoGui.getBoardPreferences();
       if (boardPreferences != null)

app/src/processing/app/EditorStatus.java

@@ -218,15 +218,15 @@ public void paintComponent(Graphics screen) {
       offscreen = createImage(imageW, imageH);
     }
 
-    Graphics graphics = offscreen.getGraphics();
-    graphics.setColor(BGCOLOR[mode]);
-    graphics.fillRect(0, 0, imageW, imageH);
-    graphics.setColor(FGCOLOR[mode]);
+    Graphics2D g = Theme.setupGraphics2D(offscreen.getGraphics());
+    g.setColor(BGCOLOR[mode]);
+    g.fillRect(0, 0, imageW, imageH);
+    g.setColor(FGCOLOR[mode]);
 
-    graphics.setFont(font); // needs to be set each time on osx
-    int ascent = graphics.getFontMetrics().getAscent();
+    g.setFont(font); // needs to be set each time on osx
+    int ascent = g.getFontMetrics().getAscent();
     assert message != null;
-    graphics.drawString(message, Preferences.GUI_SMALL, (sizeH + ascent) / 2);
+    g.drawString(message, Preferences.GUI_SMALL, (sizeH + ascent) / 2);
 
     screen.drawImage(offscreen, 0, 0, null);
   }

app/src/processing/app/EditorToolbar.java

@@ -197,7 +197,7 @@ public void paintComponent(Graphics screen) {
       x1[SERIAL] = width - BUTTON_WIDTH - 14;
       x2[SERIAL] = width - 14;
     }
-    Graphics g = offscreen.getGraphics();
+    Graphics2D g = Theme.setupGraphics2D(offscreen.getGraphics());
     g.setColor(bgcolor); //getBackground());
     g.fillRect(0, 0, width, height);
 

app/src/processing/app/Theme.java

@@ -26,6 +26,8 @@
 import java.awt.Color;
 import java.awt.Component;
 import java.awt.Font;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
 import java.awt.Image;
 import java.awt.MediaTracker;
 import java.awt.RenderingHints;
@@ -287,4 +289,13 @@ private static Image imageFromSVG(URL url, int width, int height)
     return Toolkit.getDefaultToolkit().createImage(imgData);
   }
 
+  static public Graphics2D setupGraphics2D(Graphics graphics) {
+    Graphics2D g = (Graphics2D) graphics;
+    if (PreferencesData.getBoolean("editor.antialias")) {
+      g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
+                         RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
+    }
+    return g;
+  }
+
 }