IDEA-322073 Project gradient: left side of circular gradient is too long

GitOrigin-RevId: e97df210fbb53c2e74f33ff2610f07b1d7814ec7

platform/platform-impl/src/com/intellij/ide/ProjectWindowCustomizerService.kt

@@ -347,7 +347,7 @@ class ProjectWindowCustomizerService : Disposable {
     g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY)
     val color = getGradientProjectColor(project)
 
-    val length = Registry.intValue("ide.colorful.toolbar.gradient.length", 300)
+    val length = Registry.intValue("ide.colorful.toolbar.gradient.radius", 300)
     val projectComboBtn = ComponentUtil.findComponentsOfType(parent, ToolbarComboButton::class.java).find {
       ClientProperty.get(it, CustomComponentAction.ACTION_KEY) is ProjectToolbarWidgetAction
     }
@@ -356,13 +356,18 @@ class ProjectWindowCustomizerService : Disposable {
       SwingUtilities.convertPoint(it.parent, it.x, it.y, parent).x.toFloat() + it.margin.left.toFloat() + projectIconWidth / 2
     } ?: 150f
 
-    val mainToolbarXPosition = ComponentUtil.findComponentsOfType(parent, MainToolbar::class.java).firstOrNull()?.location?.x ?: 0
+
+    val mainToolbarXPosition = (ComponentUtil.findComponentsOfType(parent, MainToolbar::class.java).firstOrNull())?.let {
+      SwingUtilities.convertPoint(it.parent, it.location, parent)
+    }?.x ?: 0
+    val saturation = Registry.doubleValue("ide.colorful.toolbar.gradient.saturation", 0.85).coerceIn(0.0, 1.0)
+    val blendedColor = ColorUtil.blendColorsInRgb(parent.background, color, saturation)
     val leftBound = (offset - length).coerceAtLeast(mainToolbarXPosition.toFloat() / 2)
-    g.paint = GradientPaint(leftBound, 0f, parent.background, offset, 0f, color)
+    g.paint = GradientPaint(leftBound, 0f, parent.background, offset, 0f, blendedColor)
     g.fillRect(0, 0, offset.toInt(), height)
 
     val rightBound = offset + length
-    g.paint = GradientPaint(offset, 0f, color, rightBound, 0f, parent.background)
+    g.paint = GradientPaint(offset, 0f, blendedColor, rightBound, 0f, parent.background)
     g.fillRect(offset.toInt(), 0, length, height)
 
     return true

platform/util/resources/misc/registry.properties

@@ -2382,10 +2382,12 @@ ide.log.coroutine.pce.description=Log PCEs occurring in coroutines. \
 
 ide.colorful.toolbar=true
 ide.colorful.toolbar.description=Enables gradient painting in main toolbar
-ide.colorful.toolbar.gradient.length=600
+ide.colorful.toolbar.gradient.radius=300
 ide.colorful.toolbar.gradient.type=[Just Icon|Linear Gradient and Icon|Circular Gradient and Icon*|Dropdown Background and Icon|Just Dropdown]
 ide.colorful.toolbar.gradient.type.description=Defines types of main toolbar decorations
-ide.colorful.toolbar.gradient.length.description=Length of the gradient in Main Toolbar
+ide.colorful.toolbar.gradient.radius.description=Radius of the gradient in Main Toolbar
+ide.colorful.toolbar.gradient.saturation=0.85
+ide.colorful.toolbar.gradient.saturation.description=Saturation of the gradient color in Main Toolbar
 ide.colorful.toolbar.force=true
 ide.colorful.toolbar.force.description=Show 'Colorful toolbar' even if there is one project open (works only if the feature is enabled). \
   Reopen project or restart IDE to apply the setting

platform/util/src/com/intellij/openapi/util/registry/Registry.java

@@ -96,6 +96,20 @@ public final class Registry {
     isLoaded = false;
   }
 
+  public static double doubleValue(@NonNls @NotNull String key, double defaultValue) {
+    if (!LoadingState.COMPONENTS_LOADED.isOccurred()) {
+      LoadingState.COMPONENTS_REGISTERED.checkOccurred();
+      return defaultValue;
+    }
+
+    try {
+      return getInstance().doGet(key).asDouble();
+    }
+    catch (MissingResourceException ignore) {
+      return defaultValue;
+    }
+  }
+
   public static double doubleValue(@NonNls @NotNull String key) throws MissingResourceException {
     return get(key).asDouble();
   }