/* gui_list.c - GUI component to display a selectable list of items. */ /* * GRUB -- GRand Unified Bootloader * Copyright (C) 2008,2009 Free Software Foundation, Inc. * * GRUB is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GRUB is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GRUB. If not, see . */ #include #include #include #include #include #include #include enum scrollbar_slice_mode { SCROLLBAR_SLICE_WEST, SCROLLBAR_SLICE_CENTER, SCROLLBAR_SLICE_EAST }; struct grub_gui_list_impl { struct grub_gui_list list; grub_gui_container_t parent; grub_video_rect_t bounds; char *id; int visible; int icon_width; int icon_height; int item_height; int item_padding; int item_icon_space; int item_spacing; grub_font_t item_font; int selected_item_font_inherit; grub_font_t selected_item_font; grub_video_rgba_color_t item_color; int selected_item_color_inherit; grub_video_rgba_color_t selected_item_color; int draw_scrollbar; int need_to_recreate_scrollbar; char *scrollbar_frame_pattern; char *scrollbar_thumb_pattern; grub_gfxmenu_box_t scrollbar_frame; grub_gfxmenu_box_t scrollbar_thumb; int scrollbar_thumb_overlay; int scrollbar_width; enum scrollbar_slice_mode scrollbar_slice; int scrollbar_left_pad; int scrollbar_right_pad; int scrollbar_top_pad; int scrollbar_bottom_pad; int first_shown_index; int need_to_recreate_boxes; char *theme_dir; char *menu_box_pattern; char *item_box_pattern; int selected_item_box_pattern_inherit; char *selected_item_box_pattern; grub_gfxmenu_box_t menu_box; grub_gfxmenu_box_t selected_item_box; grub_gfxmenu_box_t item_box; grub_gfxmenu_icon_manager_t icon_manager; grub_gfxmenu_view_t view; }; typedef struct grub_gui_list_impl *list_impl_t; static void list_destroy (void *vself) { list_impl_t self = vself; grub_free (self->theme_dir); grub_free (self->menu_box_pattern); grub_free (self->item_box_pattern); grub_free (self->selected_item_box_pattern); if (self->menu_box) self->menu_box->destroy (self->menu_box); if (self->item_box) self->item_box->destroy (self->item_box); if (self->selected_item_box) self->selected_item_box->destroy (self->selected_item_box); if (self->icon_manager) grub_gfxmenu_icon_manager_destroy (self->icon_manager); if (self->scrollbar_thumb) self->scrollbar_thumb->destroy (self->scrollbar_thumb); if (self->scrollbar_frame) self->scrollbar_frame->destroy (self->scrollbar_frame); grub_free (self->scrollbar_thumb_pattern); grub_free (self->scrollbar_frame_pattern); grub_free (self); } static int get_num_shown_items (list_impl_t self) { int boxpad = self->item_padding; int item_vspace = self->item_spacing; int item_height = self->item_height; grub_gfxmenu_box_t box = self->menu_box; int box_top_pad = box->get_top_pad (box); int box_bottom_pad = box->get_bottom_pad (box); grub_gfxmenu_box_t itembox = self->item_box; grub_gfxmenu_box_t selbox = self->selected_item_box; int item_top_pad = itembox->get_top_pad (itembox); int item_bottom_pad = itembox->get_bottom_pad (itembox); int sel_top_pad = selbox->get_top_pad (selbox); int sel_bottom_pad = selbox->get_bottom_pad (selbox); int max_top_pad = grub_max (item_top_pad, sel_top_pad); int max_bottom_pad = grub_max (item_bottom_pad, sel_bottom_pad); if (item_height + item_vspace <= 0) return 1; return (self->bounds.height + item_vspace - 2 * boxpad - max_top_pad - max_bottom_pad - box_top_pad - box_bottom_pad) / (item_height + item_vspace); } static int check_boxes (list_impl_t self) { if (self->need_to_recreate_boxes) { grub_gui_recreate_box (&self->menu_box, self->menu_box_pattern, self->theme_dir); grub_gui_recreate_box (&self->item_box, self->item_box_pattern, self->theme_dir); grub_gui_recreate_box (&self->selected_item_box, self->selected_item_box_pattern, self->theme_dir); self->need_to_recreate_boxes = 0; } return (self->menu_box != 0 && self->selected_item_box != 0 && self->item_box != 0); } static int check_scrollbar (list_impl_t self) { if (self->need_to_recreate_scrollbar) { grub_gui_recreate_box (&self->scrollbar_frame, self->scrollbar_frame_pattern, self->theme_dir); grub_gui_recreate_box (&self->scrollbar_thumb, self->scrollbar_thumb_pattern, self->theme_dir); self->need_to_recreate_scrollbar = 0; } if (self->scrollbar_frame == 0 || self->scrollbar_thumb == 0) return 0; /* Sanity checks. */ grub_gfxmenu_box_t frame = self->scrollbar_frame; grub_gfxmenu_box_t thumb = self->scrollbar_thumb; grub_gfxmenu_box_t menu = self->menu_box; int min_width = frame->get_left_pad (frame) + frame->get_right_pad (frame); int min_height = frame->get_top_pad (frame) + frame->get_bottom_pad (frame) + self->scrollbar_top_pad + self->scrollbar_bottom_pad + menu->get_top_pad (menu) + menu->get_bottom_pad (menu); if (!self->scrollbar_thumb_overlay) { min_width += thumb->get_left_pad (thumb) + thumb->get_right_pad (thumb); min_height += thumb->get_top_pad (thumb) + thumb->get_bottom_pad (thumb); } if (min_width <= self->scrollbar_width && min_height <= (int) self->bounds.height) return 1; /* Unprintable dimenstions. */ self->draw_scrollbar = 0; return 0; } static const char * list_get_id (void *vself) { list_impl_t self = vself; return self->id; } static int list_is_instance (void *vself __attribute__((unused)), const char *type) { return (grub_strcmp (type, "component") == 0 || grub_strcmp (type, "list") == 0); } static struct grub_video_bitmap * get_item_icon (list_impl_t self, int item_index) { grub_menu_entry_t entry; entry = grub_menu_get_entry (self->view->menu, item_index); if (! entry) return 0; return grub_gfxmenu_icon_manager_get_icon (self->icon_manager, entry); } static void make_selected_item_visible (list_impl_t self) { int selected_index = self->view->selected; if (selected_index < 0) return; /* No item is selected. */ int num_shown_items = get_num_shown_items (self); int last_shown_index = self->first_shown_index + (num_shown_items - 1); if (selected_index < self->first_shown_index) self->first_shown_index = selected_index; else if (selected_index > last_shown_index) self->first_shown_index = selected_index - (num_shown_items - 1); } /* Draw a scrollbar on the menu. */ static void draw_scrollbar (list_impl_t self, int value, int extent, int min, int max, int scrollbar_width, int scrollbar_height) { unsigned thumby, thumbheight; grub_gfxmenu_box_t frame = self->scrollbar_frame; grub_gfxmenu_box_t thumb = self->scrollbar_thumb; int frame_vertical_pad = (frame->get_top_pad (frame) + frame->get_bottom_pad (frame)); int frame_horizontal_pad = (frame->get_left_pad (frame) + frame->get_right_pad (frame)); unsigned thumb_vertical_pad = (thumb->get_top_pad (thumb) + thumb->get_bottom_pad (thumb)); int thumb_horizontal_pad = (thumb->get_left_pad (thumb) + thumb->get_right_pad (thumb)); int tracktop = frame->get_top_pad (frame); unsigned tracklen; if (scrollbar_height <= frame_vertical_pad) tracklen = 0; else tracklen = scrollbar_height - frame_vertical_pad; frame->set_content_size (frame, scrollbar_width - frame_horizontal_pad, tracklen); if (self->scrollbar_thumb_overlay) { tracklen += thumb_vertical_pad; tracktop -= thumb->get_top_pad (thumb); } if (value <= min || max <= min) thumby = 0; else thumby = ((unsigned) tracklen * (value - min)) / ((unsigned) (max - min)); if (max <= min) thumbheight = 1; else thumbheight = ((unsigned) (tracklen * extent) / ((unsigned) (max - min))) + 1; /* Rare occasion: too many entries or too low height. */ if (thumbheight < thumb_vertical_pad) { thumbheight = thumb_vertical_pad; if (value <= min || max <= extent || tracklen <= thumb_vertical_pad) thumby = 0; else thumby = ((unsigned) ((tracklen - thumb_vertical_pad) * (value - min)) / ((unsigned)(max - extent))); } thumby += tracktop; int thumbx = frame->get_left_pad (frame); int thumbwidth = scrollbar_width - frame_horizontal_pad; if (!self->scrollbar_thumb_overlay) thumbwidth -= thumb_horizontal_pad; else thumbx -= thumb->get_left_pad (thumb); thumb->set_content_size (thumb, thumbwidth, thumbheight - thumb_vertical_pad); frame->draw (frame, 0, 0); thumb->draw (thumb, thumbx, thumby); } /* Draw the list of items. */ static void draw_menu (list_impl_t self, int num_shown_items) { if (! self->menu_box || ! self->selected_item_box || ! self->item_box) return; int boxpad = self->item_padding; int icon_text_space = self->item_icon_space; int item_vspace = self->item_spacing; int ascent = grub_font_get_ascent (self->item_font); int descent = grub_font_get_descent (self->item_font); int selected_ascent = grub_font_get_ascent (self->selected_item_font); int selected_descent = grub_font_get_descent (self->selected_item_font); int text_box_height = self->item_height; make_selected_item_visible (self); grub_gfxmenu_box_t itembox = self->item_box; grub_gfxmenu_box_t selbox = self->selected_item_box; int item_leftpad = itembox->get_left_pad (itembox); int item_rightpad = itembox->get_right_pad (itembox); int item_border_width = item_leftpad + item_rightpad; int item_toppad = itembox->get_top_pad (itembox); int sel_leftpad = selbox->get_left_pad (selbox); int sel_rightpad = selbox->get_right_pad (selbox); int sel_border_width = sel_leftpad + sel_rightpad; int sel_toppad = selbox->get_top_pad (selbox); int max_leftpad = grub_max (item_leftpad, sel_leftpad); int max_toppad = grub_max (item_toppad, sel_toppad); int item_top = 0; int menu_index; int visible_index; struct grub_video_rect oviewport; grub_video_get_viewport (&oviewport.x, &oviewport.y, &oviewport.width, &oviewport.height); grub_video_set_viewport (oviewport.x + boxpad, oviewport.y + boxpad, oviewport.width - 2 * boxpad, oviewport.height - 2 * boxpad); int cwidth = oviewport.width - 2 * boxpad; itembox->set_content_size (itembox, cwidth - item_border_width, text_box_height); selbox->set_content_size (selbox, cwidth - sel_border_width, text_box_height); int text_left_offset = self->icon_width + icon_text_space; int item_text_top_offset = (text_box_height - (ascent + descent)) / 2 + ascent; int sel_text_top_offset = (text_box_height - (selected_ascent + selected_descent)) / 2 + selected_ascent; grub_video_rect_t svpsave, sviewport; sviewport.x = max_leftpad + text_left_offset; int text_viewport_width = cwidth - sviewport.x; sviewport.height = text_box_height; grub_video_color_t item_color; grub_video_color_t sel_color; item_color = grub_video_map_rgba_color (self->item_color); sel_color = grub_video_map_rgba_color (self->selected_item_color); int item_box_top_offset = max_toppad - item_toppad; int sel_box_top_offset = max_toppad - sel_toppad; int item_viewport_width = text_viewport_width - item_rightpad; int sel_viewport_width = text_viewport_width - sel_rightpad; int tmp_icon_top_offset = (text_box_height - self->icon_height) / 2; int item_icon_top_offset = item_toppad + tmp_icon_top_offset; int sel_icon_top_offset = sel_toppad + tmp_icon_top_offset; for (visible_index = 0, menu_index = self->first_shown_index; visible_index < num_shown_items && menu_index < self->view->menu->size; visible_index++, menu_index++) { int is_selected = (menu_index == self->view->selected); struct grub_video_bitmap *icon; grub_font_t font; grub_video_color_t color; int text_top_offset; int top_pad; int icon_top_offset; int viewport_width; if (is_selected) { selbox->draw (selbox, 0, item_top + sel_box_top_offset); font = self->selected_item_font; color = sel_color; text_top_offset = sel_text_top_offset; top_pad = sel_toppad; icon_top_offset = sel_icon_top_offset; viewport_width = sel_viewport_width; } else { itembox->draw (itembox, 0, item_top + item_box_top_offset); font = self->item_font; color = item_color; text_top_offset = item_text_top_offset; top_pad = item_toppad; icon_top_offset = item_icon_top_offset; viewport_width = item_viewport_width; } icon = get_item_icon (self, menu_index); if (icon != 0) grub_video_blit_bitmap (icon, GRUB_VIDEO_BLIT_BLEND, max_leftpad, item_top + icon_top_offset, 0, 0, self->icon_width, self->icon_height); const char *item_title = grub_menu_get_entry (self->view->menu, menu_index)->title; sviewport.y = item_top + top_pad; sviewport.width = viewport_width; grub_gui_set_viewport (&sviewport, &svpsave); grub_font_draw_string (item_title, font, color, 0, text_top_offset); grub_gui_restore_viewport (&svpsave); item_top += text_box_height + item_vspace; } grub_video_set_viewport (oviewport.x, oviewport.y, oviewport.width, oviewport.height); } static void list_paint (void *vself, const grub_video_rect_t *region) { list_impl_t self = vself; grub_video_rect_t vpsave; if (! self->visible) return; if (!grub_video_have_common_points (region, &self->bounds)) return; check_boxes (self); if (! self->menu_box || ! self->selected_item_box || ! self->item_box) return; grub_gui_set_viewport (&self->bounds, &vpsave); { grub_gfxmenu_box_t box = self->menu_box; int box_left_pad = box->get_left_pad (box); int box_top_pad = box->get_top_pad (box); int box_right_pad = box->get_right_pad (box); int box_bottom_pad = box->get_bottom_pad (box); grub_video_rect_t vpsave2, content_rect; int num_shown_items = get_num_shown_items (self); int drawing_scrollbar = (self->draw_scrollbar && (num_shown_items < self->view->menu->size) && check_scrollbar (self)); int scrollbar_width = self->scrollbar_width; content_rect.x = box_left_pad; content_rect.y = box_top_pad; content_rect.width = self->bounds.width - box_left_pad - box_right_pad; content_rect.height = self->bounds.height - box_top_pad - box_bottom_pad; box->set_content_size (box, content_rect.width, content_rect.height); box->draw (box, 0, 0); switch (self->scrollbar_slice) { case SCROLLBAR_SLICE_WEST: content_rect.x += self->scrollbar_right_pad; content_rect.width -= self->scrollbar_right_pad; break; case SCROLLBAR_SLICE_CENTER: if (drawing_scrollbar) content_rect.width -= scrollbar_width + self->scrollbar_left_pad + self->scrollbar_right_pad; break; case SCROLLBAR_SLICE_EAST: content_rect.width -= self->scrollbar_left_pad; break; } grub_gui_set_viewport (&content_rect, &vpsave2); draw_menu (self, num_shown_items); grub_gui_restore_viewport (&vpsave2); if (drawing_scrollbar) { content_rect.y += self->scrollbar_top_pad; content_rect.height -= self->scrollbar_top_pad + self->scrollbar_bottom_pad; content_rect.width = scrollbar_width; switch (self->scrollbar_slice) { case SCROLLBAR_SLICE_WEST: if (box_left_pad > scrollbar_width) { content_rect.x = box_left_pad - scrollbar_width; content_rect.width = scrollbar_width; } else { content_rect.x = 0; content_rect.width = box_left_pad; } break; case SCROLLBAR_SLICE_CENTER: content_rect.x = self->bounds.width - box_right_pad - scrollbar_width - self->scrollbar_right_pad; content_rect.width = scrollbar_width; break; case SCROLLBAR_SLICE_EAST: content_rect.x = self->bounds.width - box_right_pad; content_rect.width = box_right_pad; break; } grub_gui_set_viewport (&content_rect, &vpsave2); draw_scrollbar (self, self->first_shown_index, num_shown_items, 0, self->view->menu->size, scrollbar_width, content_rect.height); grub_gui_restore_viewport (&vpsave2); } } grub_gui_restore_viewport (&vpsave); } static void list_set_parent (void *vself, grub_gui_container_t parent) { list_impl_t self = vself; self->parent = parent; } static grub_gui_container_t list_get_parent (void *vself) { list_impl_t self = vself; return self->parent; } static void list_set_bounds (void *vself, const grub_video_rect_t *bounds) { list_impl_t self = vself; self->bounds = *bounds; } static void list_get_bounds (void *vself, grub_video_rect_t *bounds) { list_impl_t self = vself; *bounds = self->bounds; } static void list_get_minimal_size (void *vself, unsigned *width, unsigned *height) { list_impl_t self = vself; if (check_boxes (self)) { int boxpad = self->item_padding; int item_vspace = self->item_spacing; int item_height = self->item_height; int num_items = 3; grub_gfxmenu_box_t box = self->menu_box; int box_left_pad = box->get_left_pad (box); int box_top_pad = box->get_top_pad (box); int box_right_pad = box->get_right_pad (box); int box_bottom_pad = box->get_bottom_pad (box); unsigned width_s; grub_gfxmenu_box_t selbox = self->selected_item_box; int sel_top_pad = selbox->get_top_pad (selbox); int sel_bottom_pad = selbox->get_bottom_pad (selbox); int sel_left_pad = selbox->get_left_pad (selbox); int sel_right_pad = selbox->get_right_pad (selbox); grub_gfxmenu_box_t itembox = self->item_box; int item_top_pad = itembox->get_top_pad (itembox); int item_bottom_pad = itembox->get_bottom_pad (itembox); int item_left_pad = itembox->get_left_pad (itembox); int item_right_pad = itembox->get_right_pad (itembox); int max_left_pad = grub_max (item_left_pad, sel_left_pad); int max_right_pad = grub_max (item_right_pad, sel_right_pad); int max_top_pad = grub_max (item_top_pad, sel_top_pad); int max_bottom_pad = grub_max (item_bottom_pad, sel_bottom_pad); *width = grub_font_get_string_width (self->item_font, "Typical OS"); width_s = grub_font_get_string_width (self->selected_item_font, "Typical OS"); if (*width < width_s) *width = width_s; *width += 2 * boxpad + box_left_pad + box_right_pad + max_left_pad + max_right_pad + self->item_icon_space + self->icon_width; switch (self->scrollbar_slice) { case SCROLLBAR_SLICE_WEST: *width += self->scrollbar_right_pad; break; case SCROLLBAR_SLICE_CENTER: *width += self->scrollbar_width + self->scrollbar_left_pad + self->scrollbar_right_pad; break; case SCROLLBAR_SLICE_EAST: *width += self->scrollbar_left_pad; break; } /* Set the menu box height to fit the items. */ *height = (item_height * num_items + item_vspace * (num_items - 1) + 2 * boxpad + box_top_pad + box_bottom_pad + max_top_pad + max_bottom_pad); } else { *width = 0; *height = 0; } } static grub_err_t list_set_property (void *vself, const char *name, const char *value) { list_impl_t self = vself; if (grub_strcmp (name, "item_font") == 0) { self->item_font = grub_font_get (value); if (self->selected_item_font_inherit) self->selected_item_font = self->item_font; } else if (grub_strcmp (name, "selected_item_font") == 0) { if (! value || grub_strcmp (value, "inherit") == 0) { self->selected_item_font = self->item_font; self->selected_item_font_inherit = 1; } else { self->selected_item_font = grub_font_get (value); self->selected_item_font_inherit = 0; } } else if (grub_strcmp (name, "item_color") == 0) { grub_video_rgba_color_t color; if (grub_video_parse_color (value, &color) == GRUB_ERR_NONE) { self->item_color = color; if (self->selected_item_color_inherit) self->selected_item_color = self->item_color; } } else if (grub_strcmp (name, "selected_item_color") == 0) { if (! value || grub_strcmp (value, "inherit") == 0) { self->selected_item_color = self->item_color; self->selected_item_color_inherit = 1; } else { grub_video_rgba_color_t color; if (grub_video_parse_color (value, &color) == GRUB_ERR_NONE) { self->selected_item_color = color; self->selected_item_color_inherit = 0; } } } else if (grub_strcmp (name, "icon_width") == 0) { self->icon_width = grub_strtol (value, 0, 10); grub_gfxmenu_icon_manager_set_icon_size (self->icon_manager, self->icon_width, self->icon_height); } else if (grub_strcmp (name, "icon_height") == 0) { self->icon_height = grub_strtol (value, 0, 10); grub_gfxmenu_icon_manager_set_icon_size (self->icon_manager, self->icon_width, self->icon_height); } else if (grub_strcmp (name, "item_height") == 0) { self->item_height = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "item_padding") == 0) { self->item_padding = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "item_icon_space") == 0) { self->item_icon_space = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "item_spacing") == 0) { self->item_spacing = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "visible") == 0) { self->visible = grub_strcmp (value, "false") != 0; } else if (grub_strcmp (name, "menu_pixmap_style") == 0) { self->need_to_recreate_boxes = 1; grub_free (self->menu_box_pattern); self->menu_box_pattern = value ? grub_strdup (value) : 0; } else if (grub_strcmp (name, "item_pixmap_style") == 0) { self->need_to_recreate_boxes = 1; grub_free (self->item_box_pattern); self->item_box_pattern = value ? grub_strdup (value) : 0; if (self->selected_item_box_pattern_inherit) { grub_free (self->selected_item_box_pattern); self->selected_item_box_pattern = value ? grub_strdup (value) : 0; } } else if (grub_strcmp (name, "selected_item_pixmap_style") == 0) { if (!value || grub_strcmp (value, "inherit") == 0) { grub_free (self->selected_item_box_pattern); char *tmp = self->item_box_pattern; self->selected_item_box_pattern = tmp ? grub_strdup (tmp) : 0; self->selected_item_box_pattern_inherit = 1; } else { self->need_to_recreate_boxes = 1; grub_free (self->selected_item_box_pattern); self->selected_item_box_pattern = value ? grub_strdup (value) : 0; self->selected_item_box_pattern_inherit = 0; } } else if (grub_strcmp (name, "scrollbar_frame") == 0) { self->need_to_recreate_scrollbar = 1; grub_free (self->scrollbar_frame_pattern); self->scrollbar_frame_pattern = value ? grub_strdup (value) : 0; } else if (grub_strcmp (name, "scrollbar_thumb") == 0) { self->need_to_recreate_scrollbar = 1; grub_free (self->scrollbar_thumb_pattern); self->scrollbar_thumb_pattern = value ? grub_strdup (value) : 0; } else if (grub_strcmp (name, "scrollbar_thumb_overlay") == 0) { self->scrollbar_thumb_overlay = grub_strcmp (value, "true") == 0; } else if (grub_strcmp (name, "scrollbar_width") == 0) { self->scrollbar_width = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "scrollbar_slice") == 0) { if (grub_strcmp (value, "west") == 0) self->scrollbar_slice = SCROLLBAR_SLICE_WEST; else if (grub_strcmp (value, "center") == 0) self->scrollbar_slice = SCROLLBAR_SLICE_CENTER; else if (grub_strcmp (value, "east") == 0) self->scrollbar_slice = SCROLLBAR_SLICE_EAST; } else if (grub_strcmp (name, "scrollbar_left_pad") == 0) { self->scrollbar_left_pad = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "scrollbar_right_pad") == 0) { self->scrollbar_right_pad = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "scrollbar_top_pad") == 0) { self->scrollbar_top_pad = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "scrollbar_bottom_pad") == 0) { self->scrollbar_bottom_pad = grub_strtol (value, 0, 10); } else if (grub_strcmp (name, "scrollbar") == 0) { self->draw_scrollbar = grub_strcmp (value, "false") != 0; } else if (grub_strcmp (name, "theme_dir") == 0) { self->need_to_recreate_boxes = 1; grub_free (self->theme_dir); self->theme_dir = value ? grub_strdup (value) : 0; } else if (grub_strcmp (name, "id") == 0) { grub_free (self->id); if (value) self->id = grub_strdup (value); else self->id = 0; } return grub_errno; } /* Set necessary information that the gfxmenu view provides. */ static void list_set_view_info (void *vself, grub_gfxmenu_view_t view) { list_impl_t self = vself; grub_gfxmenu_icon_manager_set_theme_path (self->icon_manager, view->theme_path); self->view = view; } /* Refresh list variables */ static void list_refresh_info (void *vself, grub_gfxmenu_view_t view) { list_impl_t self = vself; if (view->nested) self->first_shown_index = 0; } static struct grub_gui_component_ops list_comp_ops = { .destroy = list_destroy, .get_id = list_get_id, .is_instance = list_is_instance, .paint = list_paint, .set_parent = list_set_parent, .get_parent = list_get_parent, .set_bounds = list_set_bounds, .get_bounds = list_get_bounds, .get_minimal_size = list_get_minimal_size, .set_property = list_set_property }; static struct grub_gui_list_ops list_ops = { .set_view_info = list_set_view_info, .refresh_list = list_refresh_info }; grub_gui_component_t grub_gui_list_new (void) { list_impl_t self; grub_font_t default_font; grub_video_rgba_color_t default_fg_color; self = grub_zalloc (sizeof (*self)); if (! self) return 0; self->list.ops = &list_ops; self->list.component.ops = &list_comp_ops; self->visible = 1; default_font = grub_font_get ("Unknown Regular 16"); default_fg_color = grub_video_rgba_color_rgb (0, 0, 0); self->icon_width = 32; self->icon_height = 32; self->item_height = 42; self->item_padding = 14; self->item_icon_space = 4; self->item_spacing = 16; self->item_font = default_font; self->selected_item_font_inherit = 1; /* Default to using the item_font. */ self->selected_item_font = default_font; self->item_color = default_fg_color; self->selected_item_color_inherit = 1; /* Default to using the item_color. */ self->selected_item_color = default_fg_color; self->draw_scrollbar = 1; self->need_to_recreate_scrollbar = 1; self->scrollbar_frame = 0; self->scrollbar_thumb = 0; self->scrollbar_frame_pattern = 0; self->scrollbar_thumb_pattern = 0; self->scrollbar_thumb_overlay = 0; self->scrollbar_width = 16; self->scrollbar_slice = SCROLLBAR_SLICE_EAST; self->scrollbar_left_pad = 2; self->scrollbar_right_pad = 0; self->scrollbar_top_pad = 0; self->scrollbar_bottom_pad = 0; self->first_shown_index = 0; self->need_to_recreate_boxes = 0; self->theme_dir = 0; self->menu_box_pattern = 0; self->item_box_pattern = 0; self->selected_item_box_pattern_inherit = 1;/*Default to using the item_box.*/ self->selected_item_box_pattern = 0; self->menu_box = grub_gfxmenu_create_box (0, 0); self->item_box = grub_gfxmenu_create_box (0, 0); self->selected_item_box = grub_gfxmenu_create_box (0, 0); self->icon_manager = grub_gfxmenu_icon_manager_new (); if (! self->icon_manager) { self->list.component.ops->destroy (self); return 0; } grub_gfxmenu_icon_manager_set_icon_size (self->icon_manager, self->icon_width, self->icon_height); return (grub_gui_component_t) self; }