/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * $Id: not checked in * * Copyright (C) 2002 Markus Braun * * All files in this archive are subject to the GNU General Public License. * See the file COPYING in the source tree root for full license agreement. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include #include "widgets.h" #ifdef HAVE_LCD_BITMAP /* Valid dimensions return true, invalid false */ static bool valid_dimensions(int x, int y, int width, int height) { if((x < 0) || (x + width > LCD_WIDTH) || (y < 0) || (y + height > LCD_HEIGHT)) { return false; } return true; } /* * Print a scroll bar */ void scrollbar(int x, int y, int width, int height, int items, int min_shown, int max_shown, int orientation) { int min; int max; int start; int size; /* check position and dimensions */ if (!valid_dimensions(x, y, width, height)) return; /* draw box */ lcd_drawrect(x, y, width, height); /* clear edge pixels */ lcd_clearpixel(x, y); lcd_clearpixel((x + width - 1), y); lcd_clearpixel(x, (y + height - 1)); lcd_clearpixel((x + width - 1), (y + height - 1)); /* clear pixels in progress bar */ lcd_clearrect(x + 1, y + 1, width - 2, height - 2); /* min should be min */ if(min_shown < max_shown) { min = min_shown; max = max_shown; } else { min = max_shown; max = min_shown; } /* limit min and max */ if(min < 0) min = 0; if(min > items) min = items; if(max < 0) max = 0; if(max > items) max = items; /* calc start and end of the knob */ if(items > 0 && items > (max - min)) { if(orientation == VERTICAL) { size = (height - 2) * (max - min) / items; start = (height - 2 - size) * min / (items - (max - min)); } else { size = (width - 2) * (max - min) / items; start = (width - 2 - size) * min / (items - (max - min)); } } else { /* if null draw a full bar */ start = 0; if(orientation == VERTICAL) size = (height - 2); else size = (width - 2); } /* knob has a width */ if(size != 0) { if(orientation == VERTICAL) lcd_fillrect(x + 1, y + start + 1, width - 2, size); else lcd_fillrect(x + start + 1, y + 1, size, height - 2); } else { /* width of knob is null */ if(orientation == VERTICAL) { start = (height - 2 - 1) * min / items; lcd_fillrect(x + 1, y + start + 1, width - 2, 1); } else { start = (width - 2 - 1) * min / items; lcd_fillrect(x + start + 1, y + 1, 1, height - 2); } } } /* * Print a checkbox */ void checkbox(int x, int y, int width, int height, bool checked) { /* check position and dimensions */ if((x < 0) || (x + width > LCD_WIDTH) || (y < 0) || (y + height > LCD_HEIGHT) || (width < 4 ) || (height < 4 )) { return; } lcd_drawrect(x, y, width, height); if (checked){ lcd_drawline(x + 2, y + 2, x + width - 2 - 1 , y + height - 2 - 1); lcd_drawline(x + 2, y + height - 2 - 1, x + width - 2 - 1, y + 2); } else { /* be sure to clear box */ lcd_clearrect(x + 1, y + 1, width - 2, height - 2); } } #endif