[melonDS] uiAreaSetBackgroundColor

ui.h

@@ -343,6 +343,7 @@ _UI_EXTERN void uiAreaScrollTo(uiArea *a, double x, double y, double width, doub
 // TODO release capture?
 _UI_EXTERN void uiAreaBeginUserWindowMove(uiArea *a);
 _UI_EXTERN void uiAreaBeginUserWindowResize(uiArea *a, uiWindowResizeEdge edge);
+_UI_EXTERN void uiAreaSetBackgroundColor(uiArea *a, int r, int g, int b);
 _UI_EXTERN uiArea *uiNewArea(uiAreaHandler *ah);
 _UI_EXTERN uiArea *uiNewScrollingArea(uiAreaHandler *ah, int width, int height);
 

unix/area.c

@@ -37,6 +37,7 @@ struct uiArea {
 	GtkWidget *areaWidget;
 	GtkDrawingArea *drawingArea;
 	areaWidget *area;
+	int bgR, bgG, bgB;
 
 	uiAreaHandler *ah;
 
@@ -133,6 +134,11 @@ static gboolean areaWidget_draw(GtkWidget *w, cairo_t *cr)
 	dp.ClipWidth = clipX1 - clipX0;
 	dp.ClipHeight = clipY1 - clipY0;
 
+	if (a->bgR != -1) {
+		cairo_set_source_rgb(cr, a->bgR/255.0, a->bgG/255.0, a->bgB/255.0);
+		cairo_paint(cr);
+	}
+
 	// no need to save or restore the graphics state to reset transformations; GTK+ does that for us
 	(*(a->ah->Draw))(a->ah, a, &dp);
 
@@ -496,6 +502,13 @@ static void areaWidget_class_init(areaWidgetClass *class)
 
 uiUnixControlAllDefaults(uiArea)
 
+void uiAreaSetBackgroundColor(uiArea *a, int r, int g, int b)
+{
+	a->bgR = r;
+	a->bgG = g;
+	a->bgB = b;
+}
+
 void uiAreaSetSize(uiArea *a, int width, int height)
 {
 	if (!a->scrolling)
@@ -603,6 +616,8 @@ uiArea *uiNewArea(uiAreaHandler *ah)
 
 	a->widget = a->areaWidget;
 
+	uiAreaSetBackgroundColor(a, -1, -1, -1);
+
 	return a;
 }
 
@@ -629,6 +644,8 @@ uiArea *uiNewScrollingArea(uiAreaHandler *ah, int width, int height)
 
 	a->widget = a->swidget;
 
+	uiAreaSetBackgroundColor(a, -1, -1, -1);
+
 	gtk_container_add(a->scontainer, a->areaWidget);
 	// and make the area visible; only the scrolled window's visibility is controlled by libui
 	gtk_widget_show(a->areaWidget);

windows/area.cpp

@@ -160,6 +160,13 @@ void uiAreaBeginUserWindowResize(uiArea *a, uiWindowResizeEdge edge)
 		wParam, 0);
 }
 
+void uiAreaSetBackgroundColor(uiArea *a, int r, int g, int b)
+{
+	a->bgR = r;
+	a->bgG = g;
+	a->bgB = b;
+}
+
 uiArea *uiNewArea(uiAreaHandler *ah)
 {
 	uiArea *a;
@@ -177,6 +184,8 @@ uiArea *uiNewArea(uiAreaHandler *ah)
 		hInstance, a,
 		FALSE);
 
+	uiAreaSetBackgroundColor(a, -1, -1, -1);
+
 	return a;
 }
 
@@ -199,6 +208,8 @@ uiArea *uiNewScrollingArea(uiAreaHandler *ah, int width, int height)
 		hInstance, a,
 		FALSE);
 
+	uiAreaSetBackgroundColor(a, -1, -1, -1);
+
 	// set initial scrolling parameters
 	areaUpdateScroll(a);
 

windows/area.hpp

@@ -24,6 +24,8 @@ struct uiArea {
 	BOOL inside;
 	BOOL tracking;
 
+	int bgR, bgG, bgB;
+
 	ID2D1HwndRenderTarget *rt;
 };
 

windows/areadraw.cpp

@@ -40,14 +40,21 @@ static HRESULT doPaint(uiArea *a, ID2D1RenderTarget *rt, RECT *clip)
 
 	// TODO only clear the clip area
 	// TODO clear with actual background brush
-	bgcolorref = GetSysColor(COLOR_BTNFACE);
+	if (a->bgR != -1) {
-	bgcolor.r = ((float) GetRValue(bgcolorref)) / 255.0;
+		bgcolor.r = ((float) a->bgR) / 255.0;
-	// due to utter apathy on Microsoft's part, GetGValue() does not work with MSVC's Run-Time Error Checks
+		bgcolor.g = ((float) a->bgG) / 255.0;
-	// it has not worked since 2008 and they have *never* fixed it
+		bgcolor.b = ((float) a->bgB) / 255.0;
-	// TODO now that -RTCc has just been deprecated entirely, should we switch back?
+		bgcolor.a = 1.0;
-	bgcolor.g = ((float) ((BYTE) ((bgcolorref & 0xFF00) >> 8))) / 255.0;
+	} else {
-	bgcolor.b = ((float) GetBValue(bgcolorref)) / 255.0;
+		bgcolorref = GetSysColor(COLOR_BTNFACE);
-	bgcolor.a = 1.0;
+		bgcolor.r = ((float) GetRValue(bgcolorref)) / 255.0;
+		// due to utter apathy on Microsoft's part, GetGValue() does not work with MSVC's Run-Time Error Checks
+		// it has not worked since 2008 and they have *never* fixed it
+		// TODO now that -RTCc has just been deprecated entirely, should we switch back?
+		bgcolor.g = ((float) ((BYTE) ((bgcolorref & 0xFF00) >> 8))) / 255.0;
+		bgcolor.b = ((float) GetBValue(bgcolorref)) / 255.0;
+		bgcolor.a = 1.0;
+	}
 	rt->Clear(&bgcolor);
 
 	(*(ah->Draw))(ah, a, &dp);