Fixed too large windows when custom decorations are enabled.

Signed-off-by: weisj <weisj@arcor.de>

core/src/main/java/com/github/weisj/darklaf/ui/optionpane/DarkOptionPaneBorder.java

@@ -0,0 +1,40 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 Jannis Weis
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.github.weisj.darklaf.ui.optionpane;
+
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+import java.awt.*;
+
+public class DarkOptionPaneBorder extends EmptyBorder {
+
+    public DarkOptionPaneBorder() {
+        super(0, 0, 0, 0);
+        Insets insets = UIManager.getInsets("OptionPane.borderInsets");
+        left = insets.left;
+        right = insets.right;
+        top = insets.top;
+        bottom = insets.bottom;
+    }
+}

core/src/main/java/com/github/weisj/darklaf/ui/optionpane/DarkOptionPaneUI.java

@@ -39,8 +39,8 @@ public class DarkOptionPaneUI extends BasicOptionPaneUI {
     }
 
     @Override
-    protected void installDefaults() {
+    protected LayoutManager createLayoutManager() {
-        super.installDefaults();
+        return super.createLayoutManager();
     }
 
     @Override

core/src/main/java/com/github/weisj/darklaf/ui/rootpane/DarkRootPaneUI.java

@@ -139,7 +139,6 @@ public class DarkRootPaneUI extends BasicRootPaneUI implements HierarchyListener
     }
 
     private void installClientDecorations(final JRootPane root) {
-        installBorder(root);
         DarkTitlePane titlePane = createTitlePane(root);
         setTitlePane(root, titlePane);
         updateWindow(root.getParent());
@@ -155,15 +154,6 @@ public class DarkRootPaneUI extends BasicRootPaneUI implements HierarchyListener
         }
     }
 
-    public void installBorder(final JRootPane root) {
-        int style = root.getWindowDecorationStyle();
-        if (style == JRootPane.NONE) {
-            LookAndFeel.uninstallBorder(root);
-        } else {
-            LookAndFeel.uninstallBorder(root);
-        }
-    }
-
     protected DarkTitlePane createTitlePane(final JRootPane root) {
         return new DarkTitlePane(root);
     }
@@ -198,13 +188,12 @@ public class DarkRootPaneUI extends BasicRootPaneUI implements HierarchyListener
         root.setLayout(layoutManager);
     }
 
-
     protected JComponent getTitlePane() {
         return titlePane;
     }
 
     protected LayoutManager createLayoutManager() {
-        return new SubstanceRootLayout();
+        return new DarkSubstanceRootLayout();
     }
 
     @Override

core/src/main/java/com/github/weisj/darklaf/ui/rootpane/DarkSubstanceRootLayout.java

@@ -23,6 +23,8 @@
  */
 package com.github.weisj.darklaf.ui.rootpane;
 
+import com.github.weisj.darklaf.util.DarkUIUtil;
+
 import javax.swing.*;
 import java.awt.*;
 
@@ -31,7 +33,7 @@ import java.awt.*;
  * @author Konstantin Bulenkov
  * @author Jannis Weis
  */
-class SubstanceRootLayout implements LayoutManager2 {
+class DarkSubstanceRootLayout implements LayoutManager2 {
     public void addLayoutComponent(final String name, final Component comp) {
     }
 
@@ -47,6 +49,13 @@ class SubstanceRootLayout implements LayoutManager2 {
         int tpWidth = 0;
         int tpHeight = 0;
         Insets i = parent.getInsets();
+
+        //Compensate for the insets of the native window peer that include the decorations.
+        Window window = DarkUIUtil.getWindow(parent);
+        Insets peerInsets = window != null ? window.getInsets() : new Insets(0, 0, 0, 0);
+        i.set(i.top - peerInsets.top, i.left - peerInsets.left,
+              i.bottom - peerInsets.bottom, i.right - peerInsets.right);
+
         JRootPane root = (JRootPane) parent;
 
         if (root.getContentPane() != null) {
@@ -79,8 +88,7 @@ class SubstanceRootLayout implements LayoutManager2 {
             }
         }
 
-        return new Dimension(Math.max(Math.max(cpWidth, mbWidth), tpWidth)
+        return new Dimension(Math.max(Math.max(cpWidth, mbWidth), tpWidth) + i.left + i.right,
-                                     + i.left + i.right,
                              cpHeight + mbHeight + tpHeight + i.top + i.bottom);
     }
 

core/src/main/resources/com/github/weisj/darklaf/properties/ui/optionPane.properties

@@ -23,11 +23,13 @@
 # SOFTWARE.
 #
 OptionPaneUI                 = com.github.weisj.darklaf.ui.optionpane.DarkOptionPaneUI
+OptionPane.border            = com.github.weisj.darklaf.ui.optionpane.DarkOptionPaneBorder
 OptionPane.messageForeground = %textForeground
 OptionPane.buttonPadding     = 5
 #SwingConstants.CENTER
 OptionPane.buttonOrientation = 0
 OptionPane.sameSizeButtons   = false
+OptionPane.borderInsets      = 5,5,5,5
 
 #Icons
 OptionPane.informationIcon   = dialog/informationDialog.svg[themed](32,32)