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Native window decorations: when resizing a window to the right or to the bottom, then first fill the new space with the window background color (instead of black) before the layout is updated (issue #339)

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This commit is contained in:
Karl Tauber
2021-07-31 18:02:10 +02:00
parent d3e39a1359
commit 4ab90065dc
7 changed files with 108 additions and 6 deletions
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4
flatlaf-natives/flatlaf-natives-windows/build.gradle.kts
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@@ -73,8 +73,8 @@ library {
linkerArgs.addAll( toolChain.map {
when( it ) {
is Gcc, is Clang -> listOf( "-l${jawt}", "-lUser32", "-lshell32", "-lAdvAPI32", "-lKernel32" )
is VisualCpp -> listOf( "${jawt}.lib", "User32.lib", "shell32.lib", "AdvAPI32.lib", "Kernel32.lib", "/NODEFAULTLIB" )
is Gcc, is Clang -> listOf( "-l${jawt}", "-lUser32", "-lGdi32", "-lshell32", "-lAdvAPI32", "-lKernel32" )
is VisualCpp -> listOf( "${jawt}.lib", "User32.lib", "Gdi32.lib", "shell32.lib", "AdvAPI32.lib", "Kernel32.lib", "/NODEFAULTLIB" )
else -> emptyList()
}
} )

18
flatlaf-natives/flatlaf-natives-windows/src/main/cpp/FlatWndProc.cpp
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@@ -52,6 +52,13 @@ JNIEXPORT void JNICALL Java_com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder
FlatWndProc::updateFrame( reinterpret_cast<HWND>( hwnd ), state );
}
extern "C"
JNIEXPORT void JNICALL Java_com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_00024WndProc_setWindowBackground
( JNIEnv* env, jobject obj, jlong hwnd, jint r, jint g, jint b )
{
FlatWndProc::setWindowBackground( reinterpret_cast<HWND>( hwnd ), r, g, b );
}
extern "C"
JNIEXPORT void JNICALL Java_com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_00024WndProc_showWindow
( JNIEnv* env, jobject obj, jlong hwnd, jint cmd )
@@ -174,6 +181,17 @@ void FlatWndProc::updateFrame( HWND hwnd, int state ) {
fwp->wmSizeWParam = -1;
}
void FlatWndProc::setWindowBackground( HWND hwnd, int r, int g, int b ) {
// delete old background brush
HBRUSH oldBrush = (HBRUSH) ::GetClassLongPtr( hwnd, GCLP_HBRBACKGROUND );
if( oldBrush != NULL )
::DeleteObject( oldBrush );
// create new background brush
HBRUSH brush = ::CreateSolidBrush( RGB( r, g, b ) );
::SetClassLongPtr( hwnd, GCLP_HBRBACKGROUND, (LONG_PTR) brush );
}
LRESULT CALLBACK FlatWndProc::StaticWindowProc( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam ) {
FlatWndProc* fwp = (FlatWndProc*) hwndMap->get( hwnd );
if( fwp == NULL )

1
flatlaf-natives/flatlaf-natives-windows/src/main/cpp/FlatWndProc.h
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@@ -26,6 +26,7 @@ public:
static HWND install( JNIEnv *env, jobject obj, jobject window );
static void uninstall( JNIEnv *env, jobject obj, HWND hwnd );
static void updateFrame( HWND hwnd, int state );
static void setWindowBackground( HWND hwnd, int r, int g, int b );
private:
static int initialized;

8
flatlaf-natives/flatlaf-natives-windows/src/main/headers/com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_WndProc.h
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@@ -39,6 +39,14 @@ JNIEXPORT void JNICALL Java_com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder
JNIEXPORT void JNICALL Java_com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_00024WndProc_updateFrame
(JNIEnv *, jobject, jlong, jint);
/*
* Class: com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_WndProc
* Method: setWindowBackground
* Signature: (JIII)V
*/
JNIEXPORT void JNICALL Java_com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_00024WndProc_setWindowBackground
(JNIEnv *, jobject, jlong, jint, jint, jint);
/*
* Class: com_formdev_flatlaf_ui_FlatWindowsNativeWindowBorder_WndProc
* Method: showWindow