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Add scroll bar to lists.

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This commit is contained in:
Steven Smith 2016-04-26 20:23:57 -07:00
parent 2b1f2b27a2
commit d61f910e87
4 changed files with 43 additions and 19 deletions
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romfs/scroll_bar.png Normal file
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1
source/core/screen.c
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@ -219,6 +219,7 @@ void screen_init() {
screen_load_texture_file(TEXTURE_TOP_SCREEN_BOTTOM_BAR_SHADOW, "top_screen_bottom_bar_shadow.png", true);
screen_load_texture_file(TEXTURE_LOGO, "logo.png", true);
screen_load_texture_file(TEXTURE_SELECTION_OVERLAY, "selection_overlay.png", true);
screen_load_texture_file(TEXTURE_SCROLL_BAR, "scroll_bar.png", true);
screen_load_texture_file(TEXTURE_BUTTON_SMALL, "button_small.png", true);
screen_load_texture_file(TEXTURE_BUTTON_LARGE, "button_large.png", true);
screen_load_texture_file(TEXTURE_PROGRESS_BAR_BG, "progress_bar_bg.png", true);

39
source/core/screen.h
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@ -20,25 +20,26 @@
#define TEXTURE_TOP_SCREEN_BOTTOM_BAR_SHADOW 9
#define TEXTURE_LOGO 10
#define TEXTURE_SELECTION_OVERLAY 11
#define TEXTURE_BUTTON_SMALL 12
#define TEXTURE_BUTTON_LARGE 13
#define TEXTURE_PROGRESS_BAR_BG 14
#define TEXTURE_PROGRESS_BAR_CONTENT 15
#define TEXTURE_META_INFO_BOX 16
#define TEXTURE_META_INFO_BOX_SHADOW 17
#define TEXTURE_BATTERY_CHARGING 18
#define TEXTURE_BATTERY_0 19
#define TEXTURE_BATTERY_1 20
#define TEXTURE_BATTERY_2 21
#define TEXTURE_BATTERY_3 22
#define TEXTURE_BATTERY_4 23
#define TEXTURE_BATTERY_5 24
#define TEXTURE_WIFI_DISCONNECTED 25
#define TEXTURE_WIFI_0 26
#define TEXTURE_WIFI_1 27
#define TEXTURE_WIFI_2 28
#define TEXTURE_WIFI_3 29
#define TEXTURE_AUTO_START 30
#define TEXTURE_SCROLL_BAR 12
#define TEXTURE_BUTTON_SMALL 13
#define TEXTURE_BUTTON_LARGE 14
#define TEXTURE_PROGRESS_BAR_BG 15
#define TEXTURE_PROGRESS_BAR_CONTENT 16
#define TEXTURE_META_INFO_BOX 17
#define TEXTURE_META_INFO_BOX_SHADOW 18
#define TEXTURE_BATTERY_CHARGING 19
#define TEXTURE_BATTERY_0 20
#define TEXTURE_BATTERY_1 21
#define TEXTURE_BATTERY_2 22
#define TEXTURE_BATTERY_3 23
#define TEXTURE_BATTERY_4 24
#define TEXTURE_BATTERY_5 25
#define TEXTURE_WIFI_DISCONNECTED 26
#define TEXTURE_WIFI_0 27
#define TEXTURE_WIFI_1 28
#define TEXTURE_WIFI_2 29
#define TEXTURE_WIFI_3 30
#define TEXTURE_AUTO_START 31
#define NUM_COLORS 6

22
source/ui/list.c
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@ -243,6 +243,28 @@ static void list_draw_bottom(ui_view* view, void* data, float x1, float y1, floa
i++;
}
u32 size = linked_list_size(&listData->items);
if(size > 0) {
float lastItemHeight;
screen_get_string_size(NULL, &lastItemHeight, ((list_item*) linked_list_get(&listData->items, size - 1))->name, 0.5f, 0.5f);
float totalHeight = list_get_item_screen_y(listData, size - 1) + listData->scrollPos + lastItemHeight;
float viewHeight = y2 - y1;
if(totalHeight > viewHeight) {
u32 scrollBarWidth = 0;
screen_get_texture_size(&scrollBarWidth, NULL, TEXTURE_SCROLL_BAR);
float scrollBarHeight = (viewHeight / totalHeight) * viewHeight;
float scrollBarX = x2 - scrollBarWidth;
float scrollBarY = y1 + (listData->scrollPos / totalHeight) * viewHeight;
screen_draw_texture(TEXTURE_SCROLL_BAR, scrollBarX, scrollBarY, scrollBarWidth, scrollBarHeight);
}
}
}
void list_display(const char* name, const char* info, void* data, void (*update)(ui_view* view, void* data, linked_list* items, list_item* selected, bool selectedTouched),