diff options
Diffstat (limited to 'area_unix.go')
| -rw-r--r-- | area_unix.go | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/area_unix.go b/area_unix.go index 46ab5ca..aacccaf 100644 --- a/area_unix.go +++ b/area_unix.go @@ -1,25 +1,32 @@ -// +build ignore -// (ignored pending Go issues 7409 and 7548) -// x+build !windows,!darwin,!plan9 +// +build !windows,!darwin,!plan9 // 14 march 2014 package ui import ( + "unsafe" "image" ) // #cgo pkg-config: gtk+-3.0 +// /* GTK+ 3.8 deprecates gtk_scrolled_window_add_with_viewport(); we need 3.4 miniimum though +// setting MIN_REQUIRED ensures nothing older; setting MAX_ALLOWED disallows newer functions - thanks to desrt in irc.gimp.net/#gtk+ +// TODO add this to the other files too */ +// #define GDK_VERSION_MIN_REQUIRED GDK_VERSION_3_4 +// #define GDK_VERSION_MAX_ALLOWED GDK_VERSION_3_4 // #include <gtk/gtk.h> // extern gboolean our_draw_callback(GtkWidget *, cairo_t *, gpointer); +// /* HACK - see https://code.google.com/p/go/issues/detail?id=7548 */ +// struct _cairo {}; import "C" func gtkAreaNew() *gtkWidget { drawingarea := C.gtk_drawing_area_new() + C.gtk_widget_set_size_request(drawingarea, 320, 240) scrollarea := C.gtk_scrolled_window_new((*C.GtkAdjustment)(nil), (*C.GtkAdjustment)(nil)) // need a viewport because GtkDrawingArea isn't natively scrollable - C.gtk_scrolled_window_add_with_viewport(scrollarea, drawingarea) + C.gtk_scrolled_window_add_with_viewport((*C.GtkScrolledWindow)(unsafe.Pointer(scrollarea)), drawingarea) return fromgtkwidget(scrollarea) } @@ -54,7 +61,7 @@ func our_draw_callback(widget *C.GtkWidget, cr *C.cairo_t, data C.gpointer) C.gb C.gdouble(cliprect.Min.X), C.gdouble(cliprect.Min.Y)) C.g_object_unref((C.gpointer)(unsafe.Pointer(pixbuf))) // free pixbuf - return C.FALSE // TODO what does this return value mean? docs don't say + return C.FALSE // signals handled without stopping the event chain (thanks to desrt again) } var draw_callback = C.GCallback(C.our_draw_callback) |