Platform: disabled image interpolation on resize in the viewer (IDEA-…

…98635)
anveshkolluri93 · Feb 26, 2014 · b671182 · b671182
1 parent f48afb5
commit b671182
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Showing 5 changed files with 17 additions and 4 deletions.
diff --git a/images/src/org/intellij/images/editor/actions/ActualSizeAction.java b/images/src/org/intellij/images/editor/actions/ActualSizeAction.java
@@ -17,6 +17,7 @@
 
 import com.intellij.openapi.actionSystem.AnAction;
 import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.project.DumbAware;
 import org.intellij.images.editor.ImageEditor;
 import org.intellij.images.editor.ImageZoomModel;
 import org.intellij.images.editor.actionSystem.ImageEditorActionUtil;
@@ -28,7 +29,7 @@
  * @see ImageEditor#getZoomModel()
  * @see ImageZoomModel#setZoomFactor
  */
-public final class ActualSizeAction extends AnAction {
+public final class ActualSizeAction extends AnAction implements DumbAware {
     public void actionPerformed(AnActionEvent e) {
         ImageEditor editor = ImageEditorActionUtil.getValidEditor(e);
         if (editor != null) {

diff --git a/images/src/org/intellij/images/editor/actions/ToggleGridAction.java b/images/src/org/intellij/images/editor/actions/ToggleGridAction.java
@@ -17,6 +17,7 @@
 
 import com.intellij.openapi.actionSystem.AnActionEvent;
 import com.intellij.openapi.actionSystem.ToggleAction;
+import com.intellij.openapi.project.DumbAware;
 import org.intellij.images.editor.ImageEditor;
 import org.intellij.images.editor.actionSystem.ImageEditorActionUtil;
 
@@ -26,7 +27,7 @@
  * @author <a href="mailto:[email protected]">Alexey Efimov</a>
  * @see ImageEditor#setGridVisible
  */
-public final class ToggleGridAction extends ToggleAction {
+public final class ToggleGridAction extends ToggleAction implements DumbAware {
   public boolean isSelected(AnActionEvent e) {
     ImageEditor editor = ImageEditorActionUtil.getValidEditor(e);
     return editor != null && editor.isGridVisible();

diff --git a/images/src/org/intellij/images/editor/actions/ZoomInAction.java b/images/src/org/intellij/images/editor/actions/ZoomInAction.java
@@ -17,6 +17,7 @@
 
 import com.intellij.openapi.actionSystem.AnAction;
 import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.project.DumbAware;
 import org.intellij.images.editor.ImageEditor;
 import org.intellij.images.editor.ImageZoomModel;
 import org.intellij.images.editor.actionSystem.ImageEditorActionUtil;
@@ -27,7 +28,7 @@
  * @author <a href="mailto:[email protected]">Alexey Efimov</a>
  * @see ImageEditor#getZoomModel
  */
-public final class ZoomInAction extends AnAction {
+public final class ZoomInAction extends AnAction implements DumbAware {
     public void actionPerformed(AnActionEvent e) {
         ImageEditor editor = ImageEditorActionUtil.getValidEditor(e);
         if (editor != null) {

diff --git a/images/src/org/intellij/images/editor/actions/ZoomOutAction.java b/images/src/org/intellij/images/editor/actions/ZoomOutAction.java
@@ -17,6 +17,7 @@
 
 import com.intellij.openapi.actionSystem.AnAction;
 import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.project.DumbAware;
 import org.intellij.images.editor.ImageEditor;
 import org.intellij.images.editor.ImageZoomModel;
 import org.intellij.images.editor.actionSystem.ImageEditorActionUtil;
@@ -27,7 +28,7 @@
  * @author <a href="mailto:[email protected]">Alexey Efimov</a>
  * @see ImageEditor#getZoomModel
  */
-public final class ZoomOutAction extends AnAction {
+public final class ZoomOutAction extends AnAction implements DumbAware {
     public void actionPerformed(AnActionEvent e) {
         ImageEditor editor = ImageEditorActionUtil.getValidEditor(e);
         if (editor != null) {

diff --git a/images/src/org/intellij/images/ui/ImageComponentUI.java b/images/src/org/intellij/images/ui/ImageComponentUI.java
@@ -88,7 +88,16 @@ private void paintChessboard(Graphics g, ImageComponent ic) {
     private void paintImage(Graphics g, ImageComponent ic) {
         ImageDocument document = ic.getDocument();
         Dimension size = ic.getCanvasSize();
+
+        Graphics2D g2d = (Graphics2D)g;
+        RenderingHints oldHints = g2d.getRenderingHints();
+
+        // disable any kind of source image manipulation when resizing
+        g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_OFF);
+        g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
         g.drawImage(document.getRenderer(), 0, 0, size.width, size.height, ic);
+
+        g2d.setRenderingHints(oldHints);
     }
 
     private void paintGrid(Graphics g, ImageComponent ic) {