From c670e745ecab21154bdf008f2e1d15bd54fed104 Mon Sep 17 00:00:00 2001
From: solusipse <solus1ps3@gmail.com>
Date: Sat, 30 Nov 2013 06:52:29 +0100
Subject: [PATCH 1/2] added basic support of GtkCssProvider

---
 gtk/gtk.go   | 32 ++++++++++++++++++++++++++++++++
 gtk/gtk.go.h |  6 ++++++
 2 files changed, 38 insertions(+)

diff --git a/gtk/gtk.go b/gtk/gtk.go
index 4d35d06..e7a7f5c 100644
--- a/gtk/gtk.go
+++ b/gtk/gtk.go
@@ -1048,6 +1048,38 @@ func (v *Clipboard) SetText(text string) {
 		C.gint(len(text)))
 }
 
+/*
+ * GtkCssProvider
+ */
+
+type CssProvider struct {
+	GtkCssProvider C.GtkCssProvider
+}
+
+func (v *CssProvider) Native() *C.GtkCssProvider {
+	return &v.GtkCssProvider
+}
+
+func (v *CssProvider) LoadFromData(cssText string) {
+	cstr := C.CString(cssText)
+	C.gtk_css_provider_load_from_data(v.Native(), (*C.gchar)(cstr), -1, nil)
+}
+
+func NewCssProvider() (*CssProvider, error) {
+	c := C.gtk_css_provider_new()
+	if c == nil {
+		return nil, nilPtrErr
+	}
+	t := &CssProvider{*c}
+	return t, nil
+}
+
+// gtk_style_context_add_provider_for_screen()
+func (v *CssProvider) AddToScreen(screen *gdk.Screen) {
+	p := unsafe.Pointer(v)
+	C.gtk_style_context_add_provider_for_screen(screen.Native(), C.toGtkStyleProvider(p), 0)
+}
+
 /*
  * GtkComboBox
  */
diff --git a/gtk/gtk.go.h b/gtk/gtk.go.h
index 5e1e184..9aeff5b 100644
--- a/gtk/gtk.go.h
+++ b/gtk/gtk.go.h
@@ -224,6 +224,12 @@ toGtkClipboard(void *p)
 	return (GTK_CLIPBOARD(p));
 }
 
+static GtkStyleProvider *
+toGtkStyleProvider(void *p)
+{
+        return (GTK_STYLE_PROVIDER(p));
+}
+
 static GtkDialog *
 toGtkDialog(void *p)
 {

From d31146143f51c3de40e6e9cd6a4d2ba9d3d599fe Mon Sep 17 00:00:00 2001
From: solusipse <solus1ps3@gmail.com>
Date: Sat, 30 Nov 2013 07:30:57 +0100
Subject: [PATCH 2/2] added LoadFromPath() method

---
 gtk/gtk.go | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/gtk/gtk.go b/gtk/gtk.go
index e7a7f5c..6d85522 100644
--- a/gtk/gtk.go
+++ b/gtk/gtk.go
@@ -1060,11 +1060,6 @@ func (v *CssProvider) Native() *C.GtkCssProvider {
 	return &v.GtkCssProvider
 }
 
-func (v *CssProvider) LoadFromData(cssText string) {
-	cstr := C.CString(cssText)
-	C.gtk_css_provider_load_from_data(v.Native(), (*C.gchar)(cstr), -1, nil)
-}
-
 func NewCssProvider() (*CssProvider, error) {
 	c := C.gtk_css_provider_new()
 	if c == nil {
@@ -1074,7 +1069,18 @@ func NewCssProvider() (*CssProvider, error) {
 	return t, nil
 }
 
-// gtk_style_context_add_provider_for_screen()
+func (v *CssProvider) LoadFromData(cssText string) bool {
+	cstr := C.CString(cssText)
+	return gobool(C.gtk_css_provider_load_from_data(v.Native(), (*C.gchar)(cstr), -1, nil))
+}
+
+func (v *CssProvider) LoadFromPath(path string) bool {
+	cstr := C.CString(path)
+	var err *C.GError = nil
+	return gobool(C.gtk_css_provider_load_from_path(v.Native(), (*C.gchar)(cstr), &err))
+}
+
+// AddToScreen() is wrapper around gtk_style_context_add_provider_for_screen()
 func (v *CssProvider) AddToScreen(screen *gdk.Screen) {
 	p := unsafe.Pointer(v)
 	C.gtk_style_context_add_provider_for_screen(screen.Native(), C.toGtkStyleProvider(p), 0)