[grits] Convert to GtkAllocation

[Andy Spencer <andys src gnome org>]

commit 62ea7c94a5ee8d5e17e8bb3b1ff4315253c61f82
Author: Andy Spencer <andy753421 gmail com>
Date:   Sun Jan 20 06:44:25 2013 +0000

    Convert to GtkAllocation

 src/grits-opengl.c         |   18 +++++++++++-------
 src/objects/grits-marker.c |    5 +++--
 src/plugins/env.c          |   14 +++++++-------
 3 files changed, 21 insertions(+), 16 deletions(-)
---
diff --git a/src/grits-opengl.c b/src/grits-opengl.c
index 6a5ea32..c4c7dac 100644
--- a/src/grits-opengl.c
+++ b/src/grits-opengl.c
@@ -68,8 +68,10 @@ static void _set_projection(GritsOpenGL *opengl)
 	glMatrixMode(GL_PROJECTION);
 	glLoadIdentity();
 
-	double width  = GTK_WIDGET(opengl)->allocation.width;
-	double height = GTK_WIDGET(opengl)->allocation.height;
+	GtkAllocation alloc;
+	gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
+	double width  = alloc.width;
+	double height = alloc.height;
 	double ang    = atan((height/2)/FOV_DIST)*2;
 	double atmos  = 100000;
 	double near   = MAX(elev*0.75 - atmos, 50); // View 100km of atmosphere
@@ -219,9 +221,11 @@ static gint run_picking(GritsOpenGL *opengl, GdkEvent *event,
 
 static gboolean run_mouse_move(GritsOpenGL *opengl, GdkEventMotion *event)
 {
-	gdouble height = GTK_WIDGET(opengl)->allocation.height;
+	GtkAllocation alloc;
+	gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
+
 	gdouble gl_x   = event->x;
-	gdouble gl_y   = height - event->y;
+	gdouble gl_y   = alloc.height - event->y;
 	gdouble delta  = opengl->pickmode ? 200 : 2;
 
 	if (opengl->pickmode) {
@@ -322,11 +326,11 @@ static void _draw_level(gpointer _level, gpointer _opengl)
 
 	/* Start ortho */
 	if (level->num >= GRITS_LEVEL_HUD) {
+		GtkAllocation alloc;
+		gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
 		glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity();
 		glMatrixMode(GL_MODELVIEW);  glPushMatrix(); glLoadIdentity();
-		gint win_width  = GTK_WIDGET(opengl)->allocation.width;
-		gint win_height = GTK_WIDGET(opengl)->allocation.height;
-		glOrtho(0, win_width, win_height, 0, 1000, -1000);
+		glOrtho(0, alloc.width, alloc.height, 0, 1000, -1000);
 	}
 
 	/* Draw unsorted objects without depth testing,
diff --git a/src/objects/grits-marker.c b/src/objects/grits-marker.c
index 3510353..40d45f4 100644
--- a/src/objects/grits-marker.c
+++ b/src/objects/grits-marker.c
@@ -256,11 +256,12 @@ static void grits_marker_draw(GritsObject *_marker, GritsOpenGL *opengl)
 				point->lat, point->lon, point->elev,
 				&px, &py, &pz);
 
-		gint win_height = GTK_WIDGET(opengl)->allocation.height;
 		if (pz > 1)
 			return;
 
-		glTranslated(px, win_height-py, 0);
+		GtkAllocation alloc;
+		gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
+		glTranslated(px, alloc.height-py, 0);
 		glRotatef(marker->angle, 0, 0, -1);
 		glTranslated(-marker->xoff, -marker->yoff, 0);
 	} else {
diff --git a/src/plugins/env.c b/src/plugins/env.c
index 4b6ed79..658881d 100644
--- a/src/plugins/env.c
+++ b/src/plugins/env.c
@@ -195,11 +195,11 @@ static void compass_expose(GritsCallback *compass, GritsOpenGL *opengl, gpointer
 	grits_viewer_get_rotation(env->viewer, &x, &y, &z);
 
 	/* Setup projection */
-	gint win_width  = GTK_WIDGET(opengl)->allocation.width;
-	gint win_height = GTK_WIDGET(opengl)->allocation.height;
-	float scale     = CLAMP(MIN(win_width,win_height)/2.0 * 0.1, 40, 100);
+	GtkAllocation alloc;
+	gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
+	float scale     = CLAMP(MIN(alloc.width,alloc.height)/2.0 * 0.1, 40, 100);
 	float offset    = scale + 20;
-	glTranslatef(win_width - offset, offset, 0);
+	glTranslatef(alloc.width - offset, offset, 0);
 
 	/* Setup state */
 	glClear(GL_DEPTH_BUFFER_BIT);
@@ -226,8 +226,8 @@ static gboolean compass_click(GritsCallback *compass, GdkEvent *evnet, GritsView
 /* Info */
 static void info_expose(GritsCallback *compass, GritsOpenGL *opengl, gpointer _env)
 {
-	gint win_width  = GTK_WIDGET(opengl)->allocation.width;
-	gint win_height = GTK_WIDGET(opengl)->allocation.height;
+	GtkAllocation alloc;
+	gtk_widget_get_allocation(GTK_WIDGET(opengl), &alloc);
 
 	/* Create cairo  surface */
 	guint            tex     = 0;
@@ -292,7 +292,7 @@ static void info_expose(GritsCallback *compass, GritsOpenGL *opengl, gpointer _e
 	glEnable(GL_TEXTURE_2D);
 	glBindTexture(GL_TEXTURE_2D, tex);
 	glDisable(GL_CULL_FACE);
-	glTranslatef(win_width - width, win_height - height, 0);
+	glTranslatef(alloc.width - width, alloc.height - height, 0);
 	glBegin(GL_QUADS);
 	glTexCoord2f(1, 0); glVertex3f(width, 0     , 0); // 0 - 3    0
 	glTexCoord2f(1, 1); glVertex3f(width, height, 0); // 1 - |    |