introduce early props

examples/vkdemos/vulkan.c

@@ -624,9 +624,9 @@ int main() {
 				  MwNtitle, "hello world",
 				  NULL);
 
-	MwVulkanEnableExtension(VK_KHR_SWAPCHAIN_EXTENSION_NAME);
+	vulkan = MwVaCreateWidget(MwVulkanClass, "vulkan", window, 50, 50, ow, oh,
-
+				  MwNvulkanExtension, VK_KHR_SWAPCHAIN_EXTENSION_NAME,
-	vulkan = MwCreateWidget(MwVulkanClass, "vulkan", window, 50, 50, ow, oh);
+				  NULL);
 
 	MwAddUserHandler(window, MwNtickHandler, tick, NULL);
 

include/Mw/StringDefs.h

@@ -51,6 +51,9 @@
 #define MwNforeground "Sforeground"
 #define MwNsubForeground "SsubForeground"
 
+#define MwNvulkanExtension "SEvulkanExtension"
+#define MwNvulkanLayer "SEvulkanLayer"
+
 #define MwNpixmap "Vpixmap"
 #define MwNiconPixmap "ViconPixmap"
 #define MwNsizeHints "VsizeHints"

include/Mw/Widget/Vulkan.h

@@ -33,18 +33,6 @@ extern "C" {
  */
 MWDECL MwClass MwVulkanClass;
 
-/*!
- * @brief Add an extension to the list of extensions to enable prior to initialization.
- * @warning This must be called before MwCreateWidget.
- */
-MWDECL void MwVulkanEnableExtension(const char* ext_name);
-
-/*!
- * @brief Add an layer to the list of layers to enable prior to initialization.
- * @warning This must be called before MwCreateWidget.
- */
-MWDECL void MwVulkanEnableLayer(const char* ext_name);
-
 /*!
  * @brief Configuration options that can be passed to setup Vulkan before a widget is created.
  */

milsko.xml

@@ -55,6 +55,9 @@
 		String properties must be prefixed with S.
 		Handler properties must be prefixed with C.
 		Other properties must be prefixed with V.
+
+		"Early" properties must have letter "E" as 2nd letter.
+		e.g. vulkanExtension would be SEvulkanExtension
 	-->
 	<properties>
 		<integer name="x" common="yes" />
@@ -104,6 +107,10 @@
 		<string name="foreground" common="yes" />
 		<string name="subForeground" common="yes" />
 
+		<!-- Early string properties -->
+		<string name="vulkanExtension" early="yes" />
+		<string name="vulkanLayer" early="yes" />
+
 		<pixmap name="pixmap" />
 		<pixmap name="iconPixmap" />
 		<struct defname="MwSizeHints" pointer="yes" name="sizeHints" />

src/core.c

@@ -18,6 +18,9 @@
 		MwLLEndDraw(handle->lowlevel); \
 	}
 
+static void	MwVaListApply_Internal(MwWidget handle, va_list va, int only_early);
+static MwWidget MwCreateWidget_Internal(MwClass widget_class, const char* name, MwWidget parent, int x, int y, unsigned int width, unsigned int height, int do_prop, va_list prop);
+
 static void lldrawhandler(MwLL handle, void* data) {
 	MwWidget h = (MwWidget)handle->common.user;
 #ifdef PERIODIC
@@ -177,7 +180,7 @@ static void lldarkthemehandler(MwLL handle, void* data) {
 	}
 }
 
-MwWidget MwCreateWidget(MwClass widget_class, const char* name, MwWidget parent, int x, int y, unsigned int width, unsigned int height) {
+static MwWidget MwCreateWidget_Internal(MwClass widget_class, const char* name, MwWidget parent, int x, int y, unsigned int width, unsigned int height, int do_prop, va_list prop) {
 	MwWidget h = malloc(sizeof(*h));
 
 	h->name = MwStringDuplicate(name);
@@ -243,6 +246,8 @@ MwWidget MwCreateWidget(MwClass widget_class, const char* name, MwWidget parent,
 	shdefault(h->handler, NULL);
 	shdefault(h->data, NULL);
 
+	if(do_prop) MwVaListApply_Internal(h, prop, 1);
+
 	h->prop_event = 0;
 	if(MwDispatch2(h, create) != 0) {
 		h->widget_class = NULL;
@@ -276,6 +281,12 @@ MwWidget MwCreateWidget(MwClass widget_class, const char* name, MwWidget parent,
 	return h;
 }
 
+MwWidget MwCreateWidget(MwClass widget_class, const char* name, MwWidget parent, int x, int y, unsigned int width, unsigned int height) {
+	va_list dummy;
+
+	return MwCreateWidget_Internal(widget_class, name, parent, x, y, width, height, 0, dummy);
+}
+
 MwWidget MwVaCreateWidget(MwClass widget_class, const char* name, MwWidget parent, int x, int y, unsigned int width, unsigned int height, ...) {
 	MwWidget h;
 	va_list	 va;
@@ -704,13 +715,15 @@ void MwVaApply(MwWidget handle, ...) {
 	va_end(va);
 }
 
-void MwVaListApply(MwWidget handle, va_list va) {
+static void MwVaListApply_Internal(MwWidget handle, va_list va, int only_early) {
 	char* key;
 	int   x = MwDEFAULT, y = MwDEFAULT, w = MwDEFAULT, h = MwDEFAULT;
 
 	while((key = va_arg(va, char*)) != NULL) {
 		if(key[0] == 'I') {
 			int n = va_arg(va, int);
+			if(only_early && key[1] != 'E') continue;
+
 			if(strcmp(key, MwNx) == 0) {
 				x = n;
 			} else if(strcmp(key, MwNy) == 0) {
@@ -724,12 +737,17 @@ void MwVaListApply(MwWidget handle, va_list va) {
 			}
 		} else if(key[0] == 'S') {
 			char* t = va_arg(va, char*);
+			if(only_early && key[1] != 'E') continue;
+
 			MwSetText(handle, key, t);
 		} else if(key[0] == 'C') {
 			MwUserHandler h = va_arg(va, MwUserHandler);
+			if(only_early && key[1] != 'E') continue;
+
 			MwAddUserHandler(handle, key, h, NULL);
 		} else if(key[0] == 'V') {
 			void* v = va_arg(va, void*);
+			if(only_early && key[1] != 'E') continue;
 			MwSetVoid(handle, key, v);
 		}
 	}
@@ -761,6 +779,10 @@ void MwVaListApply(MwWidget handle, va_list va) {
 	}
 }
 
+void MwVaListApply(MwWidget handle, va_list va) {
+	MwVaListApply_Internal(handle, va, 0);
+}
+
 void MwSetDefault(MwWidget handle) {
 	if(handle->lowlevel != NULL) MwLLSetCursor(handle->lowlevel, &MwCursorDefault, &MwCursorDefaultMask);
 }

src/widget/vulkan.c

@@ -493,14 +493,6 @@ void MwVulkanConfigure(MwVulkanConfig* cfg) {
 	vulkan_config = *cfg;
 }
 
-void MwVulkanEnableExtension(const char* name) {
-	arrput(enabledExtensions, name);
-}
-
-void MwVulkanEnableLayer(const char* name) {
-	arrput(enabledLayers, name);
-}
-
 int MwVulkanSupported(void) {
 	if(vulkan_supported == VULKAN_SUPPORTED_UNKNOWN) {
 		void* lib = vulkan_lib_load();
@@ -552,7 +544,20 @@ static void* mwVulkanGetFieldImpl(MwWidget handle, int field, int* err) {
 	if(err != NULL) {
 		*err = 0;
 	}
-};
+}
+
+static void prop_change(MwWidget handle, const char* prop) {
+	/* TODO: make this local to widgets, not global */
+	if(strcmp(prop, MwNvulkanExtension) == 0) {
+		char* str = MwStringDuplicate(MwGetText(handle, MwNvulkanExtension));
+
+		arrput(enabledExtensions, str);
+	} else if(strcmp(prop, MwNvulkanLayer) == 0) {
+		char* str = MwStringDuplicate(MwGetText(handle, MwNvulkanExtension));
+
+		arrput(enabledLayers, str);
+	}
+}
 
 static void func_handler(MwWidget handle, const char* name, void* output, va_list va) {
 	if(strcmp(name, "mwVulkanGetField") == 0) {
@@ -568,7 +573,7 @@ MwClassRec MwVulkanClassRec = {
     NULL,	  /* draw */
     NULL,	  /* click */
     NULL,	  /* parent_resize */
-    NULL,	  /* prop_change */
+    prop_change,  /* prop_change */
     NULL,	  /* mouse_move */
     NULL,	  /* mouse_up */
     NULL,	  /* mouse_down */
@@ -587,14 +592,6 @@ MwClass MwVulkanClass = &MwVulkanClassRec;
 #else
 MwClass MwVulkanClass = NULL;
 
-void MwVulkanEnableExtension(const char* ext_name) {
-	(void)ext_name;
-}
-
-void MwVulkanEnableLayer(const char* ext_name) {
-	(void)ext_name;
-}
-
 void MwVulkanConfigure(MwVulkanConfig* cfg) {
 	(void)cfg;
 }