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Linux: use X11 window manager events to move window and to show windo…
…w menu (right-click on window title bar), if custom window decorations are enabled (issue #482)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| /* | ||
| * Copyright 2022 FormDev Software GmbH | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| plugins { | ||
| `cpp-library` | ||
| } | ||
|
|
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| library { | ||
| // disable debuggable for release builds to make shared libraries smaller | ||
| binaries.configureEach( CppSharedLibrary::class ) { | ||
| with( compileTask.get() ) { | ||
| if( name.contains( "Release" ) ) | ||
| isDebuggable = false | ||
| } | ||
| with( linkTask.get() ) { | ||
| if( name.contains( "Release" ) ) | ||
| debuggable.set( false ) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| tasks { | ||
| withType<CppCompile>().configureEach { | ||
| doFirst { | ||
| println( "Used Tool Chain:" ) | ||
| println( " - ${toolChain.get()}" ) | ||
| println( "Available Tool Chains:" ) | ||
| toolChains.forEach { | ||
| println( " - $it" ) | ||
| } | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* | ||
| * Copyright 2022 FormDev Software GmbH | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| open class JniHeadersExtension { | ||
| var headers: List<String> = emptyList() | ||
| } | ||
|
|
||
| val extension = project.extensions.create<JniHeadersExtension>( "flatlafJniHeaders" ) | ||
|
|
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|
|
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| tasks { | ||
| register<Copy>( "jni-headers" ) { | ||
| // depend on :flatlaf-core:compileJava because it generates the JNI headers | ||
| dependsOn( ":flatlaf-core:compileJava" ) | ||
|
|
||
| from( project( ":flatlaf-core" ).buildDir.resolve( "generated/jni-headers" ) ) | ||
| into( "src/main/headers" ) | ||
| include( extension.headers ) | ||
| filter<org.apache.tools.ant.filters.FixCrLfFilter>( | ||
| "eol" to org.apache.tools.ant.filters.FixCrLfFilter.CrLf.newInstance( "lf" ) | ||
| ) | ||
| } | ||
| } |
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104 changes: 104 additions & 0 deletions
104
flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatNativeLinuxLibrary.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| /* | ||
| * Copyright 2022 FormDev Software GmbH | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * https://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.formdev.flatlaf.ui; | ||
|
|
||
| import java.awt.Point; | ||
| import java.awt.Toolkit; | ||
| import java.awt.Window; | ||
| import java.awt.event.MouseEvent; | ||
| import java.awt.geom.AffineTransform; | ||
| import javax.swing.JDialog; | ||
| import javax.swing.JFrame; | ||
|
|
||
| /** | ||
| * Native methods for Linux. | ||
| * <p> | ||
| * <b>Note</b>: This is private API. Do not use! | ||
| * | ||
| * @author Karl Tauber | ||
| * @since 2.5 | ||
| */ | ||
| class FlatNativeLinuxLibrary | ||
| { | ||
| static boolean isLoaded() { | ||
| return FlatNativeLibrary.isLoaded(); | ||
| } | ||
|
|
||
| // direction for _NET_WM_MOVERESIZE message | ||
| // see https://specifications.freedesktop.org/wm-spec/wm-spec-latest.html | ||
| static final int MOVE = 8; | ||
|
|
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| private static Boolean isXWindowSystem; | ||
|
|
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| private static boolean isXWindowSystem() { | ||
| if( isXWindowSystem == null ) | ||
| isXWindowSystem = Toolkit.getDefaultToolkit().getClass().getName().endsWith( ".XToolkit" ); | ||
| return isXWindowSystem; | ||
| } | ||
|
|
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| static boolean isWMUtilsSupported( Window window ) { | ||
| return hasCustomDecoration( window ) && isXWindowSystem() && isLoaded(); | ||
| } | ||
|
|
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| static boolean moveOrResizeWindow( Window window, MouseEvent e, int direction ) { | ||
| Point pt = scale( window, e.getLocationOnScreen() ); | ||
| return xMoveOrResizeWindow( window, pt.x, pt.y, direction ); | ||
|
|
||
| /* | ||
| try { | ||
| Class<?> cls = Class.forName( "com.formdev.flatlaf.natives.jna.linux.X11WmUtils" ); | ||
| java.lang.reflect.Method m = cls.getMethod( "xMoveOrResizeWindow", Window.class, int.class, int.class, int.class ); | ||
| return (Boolean) m.invoke( null, window, pt.x, pt.y, direction ); | ||
| } catch (Exception ex) { | ||
| ex.printStackTrace(); | ||
| return false; | ||
| } | ||
| */ | ||
| } | ||
|
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| static boolean showWindowMenu( Window window, MouseEvent e ) { | ||
| Point pt = scale( window, e.getLocationOnScreen() ); | ||
| return xShowWindowMenu( window, pt.x, pt.y ); | ||
|
|
||
| /* | ||
| try { | ||
| Class<?> cls = Class.forName( "com.formdev.flatlaf.natives.jna.linux.X11WmUtils" ); | ||
| java.lang.reflect.Method m = cls.getMethod( "xShowWindowMenu", Window.class, int.class, int.class ); | ||
| return (Boolean) m.invoke( null, window, pt.x, pt.y ); | ||
| } catch (Exception ex) { | ||
| ex.printStackTrace(); | ||
| return false; | ||
| } | ||
| */ | ||
| } | ||
|
|
||
| private static Point scale( Window window, Point pt ) { | ||
| AffineTransform transform = window.getGraphicsConfiguration().getDefaultTransform(); | ||
| int x = (int) Math.round( pt.x * transform.getScaleX() ); | ||
| int y = (int) Math.round( pt.y * transform.getScaleY() ); | ||
| return new Point( x, y ); | ||
| } | ||
|
|
||
| // X Window System | ||
| private static native boolean xMoveOrResizeWindow( Window window, int x, int y, int direction ); | ||
| private static native boolean xShowWindowMenu( Window window, int x, int y ); | ||
|
|
||
| private static boolean hasCustomDecoration( Window window ) { | ||
| return (window instanceof JFrame && JFrame.isDefaultLookAndFeelDecorated() && ((JFrame)window).isUndecorated()) || | ||
| (window instanceof JDialog && JDialog.isDefaultLookAndFeelDecorated() && ((JDialog)window).isUndecorated()); | ||
| } | ||
| } |
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