277 lines
10 KiB
C
277 lines
10 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007 by Jonathan Gordon
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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/* This file contains the code to draw the list widget on BITMAP LCDs. */
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#include "config.h"
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#include "lcd.h"
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#include "font.h"
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#include "button.h"
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#include "sprintf.h"
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#include "string.h"
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#include "settings.h"
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#include "kernel.h"
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#include "system.h"
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#include "action.h"
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#include "screen_access.h"
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#include "list.h"
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#include "scrollbar.h"
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#include "statusbar.h"
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#include "textarea.h"
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#include "lang.h"
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#include "sound.h"
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#include "misc.h"
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#include "talk.h"
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#include "viewport.h"
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#define SCROLLBAR_WIDTH 6
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#define ICON_PADDING 1
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/* globals */
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struct viewport title_text[NB_SCREENS], title_icons[NB_SCREENS],
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list_text[NB_SCREENS], list_icons[NB_SCREENS];
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/* should probably be moved somewhere else */
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int list_title_height(struct gui_synclist *list, struct viewport *vp)
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{
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(void)list;
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return font_get(vp->font)->height;
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}
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int gui_list_get_item_offset(struct gui_synclist * gui_list, int item_width,
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int text_pos, struct screen * display,
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struct viewport *vp);
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bool list_display_title(struct gui_synclist *list, struct viewport *vp);
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/* Draw the list...
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internal screen layout:
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-----------------
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|TI| title | TI is title icon
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-----------------
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|S|I| | S - scrollbar
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| | | items | I - icons
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------------------
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*/
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static bool draw_title(struct screen *display, struct viewport *parent,
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struct gui_synclist *list)
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{
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struct viewport *vp_icons = &title_icons[display->screen_type];
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struct viewport *vp_text = &title_text[display->screen_type];
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if (!list_display_title(list, parent))
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return false;
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*vp_text = *parent;
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vp_text->height = list_title_height(list, parent);
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if (list->title_icon != Icon_NOICON && global_settings.show_icons)
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{
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*vp_icons = *vp_text;
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vp_icons->width = get_icon_width(display->screen_type)
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+ ICON_PADDING*2;
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vp_icons->x += ICON_PADDING;
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vp_text->width -= vp_icons->width + vp_icons->x;
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vp_text->x += vp_icons->width + vp_icons->x;
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display->set_viewport(vp_icons);
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screen_put_icon(display, 0, 0, list->title_icon);
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}
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display->set_viewport(vp_text);
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vp_text->drawmode = STYLE_DEFAULT;
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#ifdef HAVE_LCD_COLOR
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if (list->title_color >= 0)
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{
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vp_text->drawmode |= (STYLE_COLORED|list->title_color);}
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#endif
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display->puts_scroll_style_offset(0, 0, list->title,
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vp_text->drawmode, 0);
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return true;
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}
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void list_draw(struct screen *display, struct viewport *parent,
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struct gui_synclist *list)
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{
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int start, end, line_height, i;
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int icon_width = get_icon_width(display->screen_type) + ICON_PADDING;
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bool show_cursor = !global_settings.cursor_style &&
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list->show_selection_marker;
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#ifdef HAVE_LCD_COLOR
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unsigned char cur_line = 0;
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#endif
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int item_offset;
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bool show_title;
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line_height = font_get(parent->font)->height;
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display->set_viewport(parent);
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display->clear_viewport();
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display->stop_scroll();
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list_text[display->screen_type] = *parent;
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if ((show_title = draw_title(display, parent, list)))
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{
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list_text[display->screen_type].y += list_title_height(list, parent);
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list_text[display->screen_type].height -= list_title_height(list, parent);
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}
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start = list->start_item[display->screen_type];
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end = start + viewport_get_nb_lines(&list_text[display->screen_type]);
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/* draw the scrollbar if its needed */
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if (global_settings.scrollbar &&
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viewport_get_nb_lines(&list_text[display->screen_type]) < list->nb_items)
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{
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struct viewport vp;
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vp = list_text[display->screen_type];
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vp.width = SCROLLBAR_WIDTH;
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list_text[display->screen_type].width -= SCROLLBAR_WIDTH;
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list_text[display->screen_type].x += SCROLLBAR_WIDTH;
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vp.height = line_height *
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viewport_get_nb_lines(&list_text[display->screen_type]);
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vp.x = parent->x;
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display->set_viewport(&vp);
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gui_scrollbar_draw(display, 0, 0, SCROLLBAR_WIDTH-1,
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vp.height, list->nb_items,
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list->start_item[display->screen_type],
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list->start_item[display->screen_type] + end-start,
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VERTICAL);
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}
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else if (show_title)
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{
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/* shift everything right a bit... */
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list_text[display->screen_type].width -= SCROLLBAR_WIDTH;
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list_text[display->screen_type].x += SCROLLBAR_WIDTH;
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}
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/* setup icon placement */
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list_icons[display->screen_type] = list_text[display->screen_type];
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int icon_count = global_settings.show_icons &&
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(list->callback_get_item_icon != NULL) ? 1 : 0;
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if (show_cursor)
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icon_count++;
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if (icon_count)
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{
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list_icons[display->screen_type].width = icon_width * icon_count;
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list_text[display->screen_type].width -=
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list_icons[display->screen_type].width + ICON_PADDING;
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list_text[display->screen_type].x +=
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list_icons[display->screen_type].width + ICON_PADDING;
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}
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for (i=start; i<end && i<list->nb_items; i++)
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{
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/* do the text */
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unsigned char *s;
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char entry_buffer[MAX_PATH];
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unsigned char *entry_name;
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int text_pos = 0;
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s = list->callback_get_item_name(i, list->data, entry_buffer);
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entry_name = P2STR(s);
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display->set_viewport(&list_text[display->screen_type]);
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list_text[display->screen_type].drawmode = STYLE_DEFAULT;
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/* position the string at the correct offset place */
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int item_width,h;
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display->getstringsize(entry_name, &item_width, &h);
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item_offset = gui_list_get_item_offset(list, item_width,
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text_pos, display,
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&list_text[display->screen_type]);
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#ifdef HAVE_LCD_COLOR
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/* if the list has a color callback */
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if (list->callback_get_item_color)
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{
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int color = list->callback_get_item_color(i, list->data);
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/* if color selected */
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if (color >= 0)
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{
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list_text[display->screen_type].drawmode |= STYLE_COLORED|color;
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}
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}
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#endif
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if(list->show_selection_marker && global_settings.cursor_style &&
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i >= list->selected_item &&
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i < list->selected_item + list->selected_size)
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{/* The selected item must be displayed scrolling */
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if (global_settings.cursor_style == 1 || display->depth < 16)
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{
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/* Display inverted-line-style */
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list_text[display->screen_type].drawmode |= STYLE_INVERT;
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}
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#ifdef HAVE_LCD_COLOR
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else if (global_settings.cursor_style == 2)
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{
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/* Display colour line selector */
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list_text[display->screen_type].drawmode |= STYLE_COLORBAR;
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}
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else if (global_settings.cursor_style == 3)
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{
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/* Display gradient line selector */
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list_text[display->screen_type].drawmode = STYLE_GRADIENT;
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/* Make the lcd driver know how many lines the gradient should
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cover and current line number */
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/* number of selected lines */
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list_text[display->screen_type].drawmode |= NUMLN_PACK(list->selected_size);
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/* current line number, zero based */
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list_text[display->screen_type].drawmode |= CURLN_PACK(cur_line);
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cur_line++;
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}
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#endif
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/* if the text is smaller than the viewport size */
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if (item_offset > item_width - (list_text[display->screen_type].width - text_pos))
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{
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/* don't scroll */
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display->puts_style_offset(0, i-start, entry_name,
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list_text[display->screen_type].drawmode, item_offset);
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}
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else
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{
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display->puts_scroll_style_offset(0, i-start, entry_name,
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list_text[display->screen_type].drawmode, item_offset);
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}
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}
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else
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display->puts_style_offset(0, i-start, entry_name,
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list_text[display->screen_type].drawmode, item_offset);
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/* do the icon */
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if (list->callback_get_item_icon && global_settings.show_icons)
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{
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display->set_viewport(&list_icons[display->screen_type]);
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screen_put_icon_with_offset(display, show_cursor?1:0,
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(i-start),show_cursor?ICON_PADDING:0,0,
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list->callback_get_item_icon(i, list->data));
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if (show_cursor && i >= list->selected_item &&
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i < list->selected_item + list->selected_size)
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{
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screen_put_icon(display, 0, i-start, Icon_Cursor);
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}
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}
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else if (show_cursor && i >= list->selected_item &&
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i < list->selected_item + list->selected_size)
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{
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display->set_viewport(&list_icons[display->screen_type]);
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screen_put_icon(display, 0, (i-start), Icon_Cursor);
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}
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}
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display->set_viewport(parent);
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display->update_viewport();
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display->set_viewport(NULL);
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}
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