Merge d69146db71 into fea45b2d5b

ui.h

@@ -305,6 +305,8 @@ typedef struct uiAreaKeyEvent uiAreaKeyEvent;
 
 typedef struct uiDrawContext uiDrawContext;
 
+// TO CONSIDER: the uiAreaHandler param there seems useless
+// (might use individual callbacks instead of handler struct?)
 struct uiAreaHandler {
 	void (*Draw)(uiAreaHandler *, uiArea *, uiAreaDrawParams *);
 	// TODO document that resizes cause a full redraw for non-scrolling areas; implementation-defined for scrolling areas
@@ -314,6 +316,7 @@ struct uiAreaHandler {
 	void (*MouseCrossed)(uiAreaHandler *, uiArea *, int left);
 	void (*DragBroken)(uiAreaHandler *, uiArea *);
 	int (*KeyEvent)(uiAreaHandler *, uiArea *, uiAreaKeyEvent *);
+	void (*Resize)(uiAreaHandler *, uiArea *, int, int);
 };
 
 // TODO RTL layouts?
@@ -346,6 +349,7 @@ _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;
 
@@ -96,6 +97,8 @@ static void areaWidget_size_allocate(GtkWidget *w, GtkAllocation *allocation)
 		// TODO drop this rule; it was stupid and documenting this was stupid — let platforms where it matters do it on their own
 		// TODO or do we not, for parity of performance?
 		gtk_widget_queue_resize(w);
+
+	a->ah->Resize(a->ah, a, allocation->width, allocation->height);
 }
 
 static void loadAreaSize(uiArea *a, double *width, double *height)
@@ -133,6 +136,11 @@ 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);
 
@@ -155,6 +163,8 @@ static void areaWidget_get_preferred_height(GtkWidget *w, gint *min, gint *nat)
 		*min = a->scrollHeight;
 		*nat = a->scrollHeight;
 	}
+
+	// TODO: min size
 }
 
 static void areaWidget_get_preferred_width(GtkWidget *w, gint *min, gint *nat)
@@ -496,6 +506,13 @@ 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 +620,8 @@ uiArea *uiNewArea(uiAreaHandler *ah)
 
 	a->widget = a->areaWidget;
 
+	uiAreaSetBackgroundColor(a, -1, -1, -1);
+
 	return a;
 }
 
@@ -629,6 +648,8 @@ 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

@@ -11,6 +11,7 @@ static LRESULT CALLBACK areaWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
 	RECT client;
 	WINDOWPOS *wp = (WINDOWPOS *) lParam;
 	LRESULT lResult;
+	double w, h;
 
 	a = (uiArea *) GetWindowLongPtrW(hwnd, GWLP_USERDATA);
 	if (a == NULL) {
@@ -37,6 +38,8 @@ static LRESULT CALLBACK areaWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
 		uiWindowsEnsureGetClientRect(a->hwnd, &client);
 		areaDrawOnResize(a, &client);
 		areaScrollOnResize(a, &client);
+		loadAreaSize(a, a->rt, &w, &h);
+		a->ah->Resize(a->ah, a, (int)w, (int)h);
 		return 0;
 	}
 
@@ -160,6 +163,13 @@ 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 +187,8 @@ uiArea *uiNewArea(uiAreaHandler *ah)
 		hInstance, a,
 		FALSE);
 
+	uiAreaSetBackgroundColor(a, -1, -1, -1);
+
 	return a;
 }
 
@@ -199,6 +211,8 @@ 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

@@ -40,6 +40,12 @@ static HRESULT doPaint(uiArea *a, ID2D1RenderTarget *rt, RECT *clip)
 
 	// TODO only clear the clip area
 	// TODO clear with actual background brush
+	if (a->bgR != -1) {
+		bgcolor.r = ((float) a->bgR) / 255.0;
+		bgcolor.g = ((float) a->bgG) / 255.0;
+		bgcolor.b = ((float) a->bgB) / 255.0;
+		bgcolor.a = 1.0;
+	} else {
 		bgcolorref = GetSysColor(COLOR_BTNFACE);
 		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
@@ -48,6 +54,7 @@ static HRESULT doPaint(uiArea *a, ID2D1RenderTarget *rt, RECT *clip)
 		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);