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GtkGraphView: Add relaize signal callback to gl area to setup opengl stuff

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This commit is contained in:
Mario Hüttel 2020-06-25 23:47:00 +02:00
parent c2439df2ef
commit 933120ed85
1 changed files with 10 additions and 1 deletions
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11
lib/src/gtk-graph-view.c
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@ -16,6 +16,7 @@
#include <gtk-graph-view.h>
#include <epoxy/gl.h>
#include <shimatta-opengl-program.h>
struct _GtkGraphView {
GtkBox super;
@ -24,7 +25,7 @@ struct _GtkGraphView {
typedef struct {
/**
* @brief The gl area displaying the graph view.
* @note This variable is not referenced, because the gl_area is tightly bound to the GrapgView widget itself.
* @note This variable is not referenced, because the gl_area is tightly bound to the GraphView widget itself.
*/
GtkWidget *gl_area;
GdkRGBA background_color;
@ -111,6 +112,13 @@ static void gtk_graph_view_class_init(GtkGraphViewClass *klass)
g_object_class_install_properties(oclass, N_PROPERTIES, gtk_graph_view_properties);
}
static void gl_area_realize(GtkGLArea *area, gpointer data)
{
(void)data;
gtk_gl_area_make_current(area);
}
/**
* @brief Init a new GtkGraphView GObject
* @param obj Object to initialize
@ -124,6 +132,7 @@ static void gtk_graph_view_init(GtkGraphView *obj)
/* Create new GTK GL_Area as only child of the box */
priv->gl_area = gtk_gl_area_new();
g_signal_connect(priv->gl_area, "render", G_CALLBACK(gl_render), obj);
g_signal_connect(priv->gl_area, "realize", G_CALLBACK(gl_area_realize), obj);
gtk_container_add(GTK_CONTAINER(obj), priv->gl_area);
gtk_box_set_child_packing(GTK_BOX(obj), priv->gl_area, TRUE, TRUE, 0, GTK_PACK_START);
gtk_widget_show(priv->gl_area);