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Bug #2430 » 0079-gtk4-x-Fix-tech-tree-scrolling.patch

main - Marko Lindqvist, 10/31/2026 01:33 AM

View differences:

client/gui-gtk-4.0/repodlgs.c
struct canvas canvas = FC_STATIC_CANVAS_INIT;
struct reqtree *reqtree = g_object_get_data(G_OBJECT(widget), "reqtree");
int rtwidth, rtheight;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
gint hadjustment_value;
gint vadjustment_value;
GtkViewport *vp;
if (!tileset_is_fully_loaded()) {
return;
......
get_reqtree_dimensions(reqtree, &rtwidth, &rtheight);
gtk_widget_set_size_request(GTK_WIDGET(widget), rtwidth, rtheight);
vp = GTK_VIEWPORT(gtk_widget_get_parent(GTK_WIDGET(widget)));
hadjustment = gtk_scrollable_get_hadjustment(GTK_SCROLLABLE(vp));
vadjustment = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vp));
hadjustment_value = (gint)gtk_adjustment_get_value(hadjustment);
vadjustment_value = (gint)gtk_adjustment_get_value(vadjustment);
cairo_translate(cr, -hadjustment_value, -vadjustment_value);
canvas.drawable = cr;
draw_reqtree(reqtree, &canvas, 0, 0, 0, 0, rtwidth, rtheight);
client/gui-gtk-5.0/repodlgs.c
struct canvas canvas = FC_STATIC_CANVAS_INIT;
struct reqtree *reqtree = g_object_get_data(G_OBJECT(widget), "reqtree");
int rtwidth, rtheight;
GtkAdjustment *hadjustment;
GtkAdjustment *vadjustment;
gint hadjustment_value;
gint vadjustment_value;
GtkViewport *vp;
if (!tileset_is_fully_loaded()) {
return;
......
get_reqtree_dimensions(reqtree, &rtwidth, &rtheight);
gtk_widget_set_size_request(GTK_WIDGET(widget), rtwidth, rtheight);
vp = GTK_VIEWPORT(gtk_widget_get_parent(GTK_WIDGET(widget)));
hadjustment = gtk_scrollable_get_hadjustment(GTK_SCROLLABLE(vp));
vadjustment = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(vp));
hadjustment_value = (gint)gtk_adjustment_get_value(hadjustment);
vadjustment_value = (gint)gtk_adjustment_get_value(vadjustment);
cairo_translate(cr, -hadjustment_value, -vadjustment_value);
canvas.drawable = cr;
draw_reqtree(reqtree, &canvas, 0, 0, 0, 0, rtwidth, rtheight);
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