Re: xpm with transparency to a button

[Matt Flax <flatmax mimosaacoustics com>]

Ah yes ... I am using the incorrect x and y below,

should be using the following :

    gdk_cairo_set_source_pixbuf(cr, tipGDKPixBuf,  
widget->allocation.x,  widget->allocation.y);

Matt

On 04/10/2012 05:02 PM, Matt Flax wrote:
> I have started using cairo on this topic,
>
> With the following code, the image is not produced at the desired 
> location .. can anyone point out what I am doing wrong ?
>
> Is it something to do with the locations x and y ?
>
> #include "T6.xpm"
>
> gboolean on_expose_event(GtkWidget *widget, GdkEventExpose *event, 
> gpointer data){
>
>     int width, height, x, y;
>     GdkPixbuf *tipGDKPixBuf = gdk_pixbuf_new_from_xpm_data(T6);
>     width=gdk_pixbuf_get_width(tipGDKPixBuf);
>     height=gdk_pixbuf_get_height(tipGDKPixBuf);
>
>     gtk_widget_set_size_request(widget, width, height);
>
>     gdk_window_get_position(widget->window,&x,&y);
>
>     cairo_t  *cr=gdk_cairo_create(widget->window);
>     gdk_cairo_set_source_pixbuf(cr, tipGDKPixBuf, x, y);
>     cairo_paint(cr);
>     cairo_destroy(cr);
>
>     return FALSE;
> }
>
>
> On 04/10/2012 11:34 AM, Matt Flax wrote:
> > Hi there,
> >
> > Does anyone have any example code on how to render an XPM with 
> > transparent sections to a button ?
> >
> > thanks
> > Matt
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