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Implement Home and End scroll functionality. 

svn path=/trunk/netsurf/; revision=13292
This commit is contained in:
Steve Fryatt 2011-12-18 11:18:52 +00:00
parent 1631f3a4cb
commit a40b9fbecd
1 changed files with 9 additions and 5 deletions
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14
riscos/window.c
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@ -3017,6 +3017,7 @@ void ro_gui_window_scroll_action(struct gui_window *g,
{
int visible_x, visible_y;
int step_x = 0, step_y = 0;
int toolbar_y;
wimp_window_state state;
wimp_pointer pointer;
os_error *error;
@ -3035,14 +3036,13 @@ void ro_gui_window_scroll_action(struct gui_window *g,
return;
}
visible_x = state.visible.x1 - state.visible.x0 - 32;
visible_y = state.visible.y1 - state.visible.y0 - 32;
toolbar = ro_toolbar_parent_window_lookup(g->window);
assert(g == NULL || g->toolbar == NULL || g->toolbar == toolbar);
if (toolbar != NULL)
visible_y -= ro_toolbar_full_height(toolbar);
toolbar_y = (toolbar == NULL) ? 0 : ro_toolbar_full_height(toolbar);
visible_x = state.visible.x1 - state.visible.x0 - 32;
visible_y = state.visible.y1 - state.visible.y0 - 32 - toolbar_y;
error = xwimp_get_pointer_info(&pointer);
if (error) {
@ -3068,8 +3068,10 @@ void ro_gui_window_scroll_action(struct gui_window *g,
step_x = visible_x;
break;
case 0x80000000:
step_x = -0x10000000;
break;
case 0x7fffffff:
step_x = 0x10000000;
break;
default:
step_x = (visible_x * (scroll_x>>2)) >> 2;
@ -3092,8 +3094,10 @@ void ro_gui_window_scroll_action(struct gui_window *g,
step_y = -visible_y;
break;
case 0x80000000:
step_y = -0x10000000;
break;
case 0x7fffffff:
step_y = 0x10000000;
break;
default:
step_y = (visible_y * (scroll_y>>2)) >> 2;