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(GLUI) Refactor mui_draw_scrollbar

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This commit is contained in:
Jean-André Santoni 2015-11-05 17:42:36 +07:00
parent d91462fd53
commit 9943002424
1 changed files with 26 additions and 19 deletions
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45
menu/drivers/materialui.c
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@ -70,6 +70,7 @@ typedef struct mui_handle
unsigned tabs_height;
unsigned line_height;
unsigned shadow_height;
unsigned scrollbar_width;
unsigned icon_size;
unsigned margin;
unsigned glyph_width;
@ -245,7 +246,7 @@ static void mui_render_quad(int x, int y, unsigned w, unsigned h,
static void mui_draw_scrollbar(unsigned width, unsigned height, GRfloat *coord_color)
{
unsigned header_height;
float content_height, total_height, scrollbar_width, scrollbar_height, y;
float content_height, total_height, scrollbar_height, scrollbar_margin, y;
mui_handle_t *mui = NULL;
menu_handle_t *menu = menu_driver_get_ptr();
@ -254,22 +255,27 @@ static void mui_draw_scrollbar(unsigned width, unsigned height, GRfloat *coord_c
menu_display_ctl(MENU_DISPLAY_CTL_HEADER_HEIGHT, &header_height);
mui = (mui_handle_t*)menu->userdata;
content_height = menu_entries_get_end() * mui->line_height;
total_height = height - header_height - mui->tabs_height;
scrollbar_height = total_height / (content_height / total_height) - (header_height / 6);
y = total_height * menu->scroll_y / content_height;
mui = (mui_handle_t*)menu->userdata;
content_height = menu_entries_get_end() * mui->line_height;
total_height = height - header_height - mui->tabs_height;
scrollbar_margin = mui->scrollbar_width;
scrollbar_height = total_height / (content_height / total_height);
y = total_height * menu->scroll_y / content_height;
/* apply a margin on the top and bottom of the scrollbar for aestetic */
scrollbar_height -= scrollbar_margin * 2;
y += scrollbar_margin;
if (content_height >= total_height)
{
scrollbar_width = (header_height / 12);
if (scrollbar_height <= header_height / 12)
scrollbar_height = header_height / 12;
/* if the scrollbar is extremely short, display it as a square */
if (scrollbar_height <= mui->scrollbar_width)
scrollbar_height = mui->scrollbar_width;
mui_render_quad(
width - scrollbar_width - (header_height / 12),
header_height + y + (header_height / 12),
scrollbar_width,
width - mui->scrollbar_width - scrollbar_margin,
header_height + y,
mui->scrollbar_width,
scrollbar_height,
width, height,
coord_color);
@ -915,14 +921,15 @@ static void mui_layout(menu_handle_t *menu, mui_handle_t *mui)
size proportional to the display width. */
menu_display_ctl(MENU_DISPLAY_CTL_GET_DPI, &scale_factor);
new_header_height = scale_factor / 3;
new_font_size = scale_factor / 9;
new_header_height = scale_factor / 3;
new_font_size = scale_factor / 9;
mui->shadow_height = scale_factor / 36;
mui->tabs_height = scale_factor / 3;
mui->line_height = scale_factor / 3;
mui->margin = scale_factor / 9;
mui->icon_size = scale_factor / 3;
mui->shadow_height = scale_factor / 36;
mui->scrollbar_width = scale_factor / 36;
mui->tabs_height = scale_factor / 3;
mui->line_height = scale_factor / 3;
mui->margin = scale_factor / 9;
mui->icon_size = scale_factor / 3;
menu_display_ctl(MENU_DISPLAY_CTL_SET_HEADER_HEIGHT, &new_header_height);
menu_display_ctl(MENU_DISPLAY_CTL_SET_FONT_SIZE, &new_font_size);