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(GLUI) Scrollbar

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This commit is contained in:
Jean-André Santoni 2015-04-21 09:47:02 +07:00
parent 1f31033394
commit 8ef70debcb
1 changed files with 31 additions and 0 deletions
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31
menu/drivers/glui.c
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@ -218,6 +218,35 @@ static void glui_draw_cursor(gl_t *gl, float x, float y)
glui_render_quad(gl, x-5, y-5, 10, 10, 1, 1, 1, 1);
}
static void glui_draw_scrollbar(gl_t *gl)
{
int width = 4;
glui_handle_t *glui = NULL;
menu_handle_t *menu = menu_driver_get_ptr();
if (!menu)
return;
glui = (glui_handle_t*)menu->userdata;
float content_height = menu_list_get_size(menu->menu_list) * glui->line_height;
float total_height = gl->win_height - menu->header_height * 2;
float height = total_height / (content_height / total_height);
float y = total_height * menu->scroll_y / content_height;
if (content_height < total_height)
return;
glui_render_quad(gl,
gl->win_width - width,
menu->header_height + y,
width,
height,
1, 1, 1, 1);
}
static void glui_get_message(const char *message)
{
glui_handle_t *glui = NULL;
@ -481,6 +510,8 @@ static void glui_frame(void)
gl->win_width, menu->header_height,
0.2, 0.2, 0.2, 1);
glui_draw_scrollbar(gl);
core_name = global->menu.info.library_name;
if (!core_name)
core_name = global->system.info.library_name;