void GUIFontPrint(const struct GUIFont* font, int x, int y, enum GUIAlignment align, uint32_t color, const char* text) { switch (align & GUI_ALIGN_HCENTER) { case GUI_ALIGN_HCENTER: x -= GUIFontSpanWidth(font, text) / 2; break; case GUI_ALIGN_RIGHT: x -= GUIFontSpanWidth(font, text); break; default: break; } size_t len = strlen(text); while (len) { uint32_t c = utf8Char(&text, &len); if (c == '\1') { c = utf8Char(&text, &len); if (c < GUI_ICON_MAX) { GUIFontDrawIcon(font, x, y, GUI_ALIGN_BOTTOM, GUI_ORIENT_0, color, c); unsigned w; GUIFontIconMetrics(font, c, &w, 0); x += w; } } else { GUIFontDrawGlyph(font, x, y, color, c); x += GUIFontGlyphWidth(font, c); } } }
void GUIDrawBattery(struct GUIParams* params) { if (!params->batteryState) { return; } int state = params->batteryState(); uint32_t color = 0xFF000000; if (state == (BATTERY_CHARGING | BATTERY_FULL)) { color |= 0xFFC060; } else if (state & BATTERY_CHARGING) { color |= 0x60FF60; } else if (state >= BATTERY_HALF) { color |= 0xFFFFFF; } else if (state == BATTERY_LOW) { color |= 0x30FFFF; } else { color |= 0x3030FF; } enum GUIIcon batteryIcon; switch (state & ~BATTERY_CHARGING) { case BATTERY_EMPTY: batteryIcon = GUI_ICON_BATTERY_EMPTY; break; case BATTERY_LOW: batteryIcon = GUI_ICON_BATTERY_LOW; break; case BATTERY_HALF: batteryIcon = GUI_ICON_BATTERY_HALF; break; case BATTERY_HIGH: batteryIcon = GUI_ICON_BATTERY_HIGH; break; case BATTERY_FULL: batteryIcon = GUI_ICON_BATTERY_FULL; break; default: batteryIcon = GUI_ICON_BATTERY_EMPTY; break; } GUIFontDrawIcon(params->font, params->width, 0, GUI_ALIGN_RIGHT, GUI_ORIENT_0, color, batteryIcon); }
enum GUIMenuExitReason GUIShowMenu(struct GUIParams* params, struct GUIMenu* menu, struct GUIMenuItem** item) { size_t start = 0; size_t lineHeight = GUIFontHeight(params->font); size_t pageSize = params->height / lineHeight; if (pageSize > 4) { pageSize -= 4; } else { pageSize = 1; } int cursorOverItem = 0; GUIInvalidateKeys(params); while (true) { uint32_t newInput = 0; GUIPollInput(params, &newInput, 0); unsigned cx, cy; enum GUICursorState cursor = GUIPollCursor(params, &cx, &cy); if (newInput & (1 << GUI_INPUT_UP) && menu->index > 0) { --menu->index; } if (newInput & (1 << GUI_INPUT_DOWN) && menu->index < GUIMenuItemListSize(&menu->items) - 1) { ++menu->index; } if (newInput & (1 << GUI_INPUT_LEFT)) { struct GUIMenuItem* item = GUIMenuItemListGetPointer(&menu->items, menu->index); if (item->validStates) { if (item->state > 0) { unsigned oldState = item->state; do { --item->state; } while (!item->validStates[item->state] && item->state > 0); if (!item->validStates[item->state]) { item->state = oldState; } } } else if (menu->index >= pageSize) { menu->index -= pageSize; } else { menu->index = 0; } } if (newInput & (1 << GUI_INPUT_RIGHT)) { struct GUIMenuItem* item = GUIMenuItemListGetPointer(&menu->items, menu->index); if (item->validStates) { if (item->state < item->nStates - 1) { unsigned oldState = item->state; do { ++item->state; } while (!item->validStates[item->state] && item->state < item->nStates - 1); if (!item->validStates[item->state]) { item->state = oldState; } } } else if (menu->index + pageSize < GUIMenuItemListSize(&menu->items)) { menu->index += pageSize; } else { menu->index = GUIMenuItemListSize(&menu->items) - 1; } } if (cursor != GUI_CURSOR_NOT_PRESENT) { if (cx < params->width - 16) { int index = (cy / lineHeight) - 2; if (index >= 0 && index + start < GUIMenuItemListSize(&menu->items)) { if (menu->index != index + start || !cursorOverItem) { cursorOverItem = 1; } menu->index = index + start; } else { cursorOverItem = 0; } } else if (cursor == GUI_CURSOR_DOWN || cursor == GUI_CURSOR_DRAGGING) { if (cy <= 2 * lineHeight && cy > lineHeight && menu->index > 0) { --menu->index; } else if (cy <= params->height && cy > params->height - lineHeight && menu->index < GUIMenuItemListSize(&menu->items) - 1) { ++menu->index; } else if (cy <= params->height - lineHeight && cy > 2 * lineHeight) { size_t location = cy - 2 * lineHeight; location *= GUIMenuItemListSize(&menu->items); menu->index = location / (params->height - 3 * lineHeight); } } } if (menu->index < start) { start = menu->index; } while ((menu->index - start + 4) * lineHeight > params->height) { ++start; } if (newInput & (1 << GUI_INPUT_CANCEL)) { break; } if (newInput & (1 << GUI_INPUT_SELECT) || (cursorOverItem == 2 && cursor == GUI_CURSOR_CLICKED)) { *item = GUIMenuItemListGetPointer(&menu->items, menu->index); if ((*item)->submenu) { enum GUIMenuExitReason reason = GUIShowMenu(params, (*item)->submenu, item); if (reason != GUI_MENU_EXIT_BACK) { return reason; } } else { return GUI_MENU_EXIT_ACCEPT; } } if (cursorOverItem == 1 && (cursor == GUI_CURSOR_UP || cursor == GUI_CURSOR_NOT_PRESENT)) { cursorOverItem = 2; } if (newInput & (1 << GUI_INPUT_BACK)) { return GUI_MENU_EXIT_BACK; } params->drawStart(); if (menu->background) { menu->background->draw(menu->background, GUIMenuItemListGetPointer(&menu->items, menu->index)->data); } if (params->guiPrepare) { params->guiPrepare(); } unsigned y = lineHeight; GUIFontPrint(params->font, 0, y, GUI_ALIGN_LEFT, 0xFFFFFFFF, menu->title); if (menu->subtitle) { GUIFontPrint(params->font, 0, y * 2, GUI_ALIGN_LEFT, 0xFFFFFFFF, menu->subtitle); } y += 2 * lineHeight; size_t itemsPerScreen = (params->height - y) / lineHeight; size_t i; for (i = start; i < GUIMenuItemListSize(&menu->items); ++i) { int color = 0xE0A0A0A0; if (i == menu->index) { color = 0xFFFFFFFF; GUIFontDrawIcon(params->font, 2, y, GUI_ALIGN_BOTTOM | GUI_ALIGN_LEFT, GUI_ORIENT_0, 0xFFFFFFFF, GUI_ICON_POINTER); } struct GUIMenuItem* item = GUIMenuItemListGetPointer(&menu->items, i); GUIFontPrintf(params->font, 0, y, GUI_ALIGN_LEFT, color, " %s", item->title); if (item->validStates && item->validStates[item->state]) { GUIFontPrintf(params->font, params->width, y, GUI_ALIGN_RIGHT, color, "%s ", item->validStates[item->state]); } y += lineHeight; if (y + lineHeight > params->height) { break; } } if (itemsPerScreen < GUIMenuItemListSize(&menu->items)) { y = 2 * lineHeight; GUIFontDrawIcon(params->font, params->width - 8, y, GUI_ALIGN_HCENTER | GUI_ALIGN_BOTTOM, GUI_ORIENT_VMIRROR, 0xFFFFFFFF, GUI_ICON_SCROLLBAR_BUTTON); for (; y < params->height - 16; y += 16) { GUIFontDrawIcon(params->font, params->width - 8, y, GUI_ALIGN_HCENTER | GUI_ALIGN_TOP, GUI_ORIENT_0, 0xFFFFFFFF, GUI_ICON_SCROLLBAR_TRACK); } GUIFontDrawIcon(params->font, params->width - 8, y, GUI_ALIGN_HCENTER | GUI_ALIGN_TOP, GUI_ORIENT_0, 0xFFFFFFFF, GUI_ICON_SCROLLBAR_BUTTON); size_t top = 2 * lineHeight; y = menu->index * (y - top - 16) / GUIMenuItemListSize(&menu->items); GUIFontDrawIcon(params->font, params->width - 8, top + y, GUI_ALIGN_HCENTER | GUI_ALIGN_TOP, GUI_ORIENT_0, 0xFFFFFFFF, GUI_ICON_SCROLLBAR_THUMB); } GUIDrawBattery(params); GUIDrawClock(params); if (cursor != GUI_CURSOR_NOT_PRESENT) { GUIFontDrawIcon(params->font, cx, cy, GUI_ALIGN_HCENTER | GUI_ALIGN_TOP, GUI_ORIENT_0, 0xFFFFFFFF, GUI_ICON_CURSOR); } if (params->guiFinish) { params->guiFinish(); } params->drawEnd(); } return GUI_MENU_EXIT_CANCEL; }