/*************************************************************************** * __________ __ ___. * Open \______ \ ____ ____ | | _\_ |__ _______ ___ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ * \/ \/ \/ \/ \/ * * Copyright (C) Jonathan Gordon (2006) * * This program 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 2 * of the License, or (at your option) any later version. * * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY * KIND, either express or implied. * ****************************************************************************/ #include "config.h" #include "stdarg.h" #include "string.h" #include "stdio.h" #include "kernel.h" #include "system.h" #include "screen_access.h" #include "font.h" #include "debug.h" #include "misc.h" #include "settings.h" #include "scrollbar.h" #include "lang.h" #include "splash.h" #include "action.h" #include "icon.h" #include "color_picker.h" #include "viewport.h" /* structure for color info */ struct rgb_pick { unsigned color; /* native color value */ union { unsigned char rgb_val[6]; /* access to components as array */ struct { unsigned char r; /* native red value */ unsigned char g; /* native green value */ unsigned char b; /* native blue value */ unsigned char red; /* 8 bit red value */ unsigned char green; /* 8 bit green value */ unsigned char blue; /* 8 bit blue value */ } __attribute__ ((__packed__)); /* assume byte packing */ }; }; /* list of primary colors */ #define SB_PRIM 0 #define SB_FILL 1 static const unsigned prim_rgb[][3] = { /* Foreground colors for sliders */ { LCD_RGBPACK(255, 0, 0), LCD_RGBPACK( 0, 255, 0), LCD_RGBPACK( 0, 0, 255), }, /* Fill colors for sliders */ { LCD_RGBPACK( 85, 0, 0), LCD_RGBPACK( 0, 85, 0), LCD_RGBPACK( 0, 0, 85), }, }; /* maximum values for components */ static const unsigned char rgb_max[3] = { LCD_MAX_RED, LCD_MAX_GREEN, LCD_MAX_BLUE }; /* Unpacks the color value into native rgb values and 24 bit rgb values */ static void unpack_rgb(struct rgb_pick *rgb) { unsigned color = rgb->color; rgb->red = RGB_UNPACK_RED(color); rgb->green = RGB_UNPACK_GREEN(color); rgb->blue = RGB_UNPACK_BLUE(color); rgb->r = RGB_UNPACK_RED_LCD(color); rgb->g = RGB_UNPACK_GREEN_LCD(color); rgb->b = RGB_UNPACK_BLUE_LCD(color); } /* Packs the native rgb colors into a color value */ static inline void pack_rgb(struct rgb_pick *rgb) { rgb->color = LCD_RGBPACK_LCD(rgb->r, rgb->g, rgb->b); } /* Returns LCD_BLACK if the color is above a threshold brightness else return LCD_WHITE */ static inline unsigned get_black_or_white(const struct rgb_pick *rgb) { return (2*rgb->red + 5*rgb->green + rgb->blue) >= 1024 ? LCD_BLACK : LCD_WHITE; } #define MARGIN_TOP 2 /* Top margin of screen */ #define MARGIN_BOTTOM 6 /* Bottom margin of screen */ #define SLIDER_TEXT_MARGIN 2 /* Gap between text and sliders */ #define TITLE_MARGIN_BOTTOM 4 /* Space below title bar */ #define SELECTOR_TB_MARGIN 1 /* Margin on top and bottom of selector */ #define SWATCH_TOP_MARGIN 4 /* Space between last slider and swatch */ #define SELECTOR_WIDTH get_icon_width(display->screen_type) #define SELECTOR_HEIGHT 8 /* Height of > and < bitmaps */ /* Figure out widest label character in case they vary - this function assumes labels are one character */ static int label_get_max_width(struct screen *display) { int max_width, i; char buf[4]; for (i = 0, max_width = 0; i < 3; i++) { int width; buf[0] = str(LANG_COLOR_RGB_LABELS)[i]; buf[1] = '\0'; width = display->getstringsize(buf, NULL, NULL); if (width > max_width) max_width = width; } return max_width; } static void draw_screen(struct screen *display, char *title, struct rgb_pick *rgb, int row) { unsigned text_color = LCD_BLACK; unsigned background_color = LCD_WHITE; int i, char_height, line_height; int max_label_width; int text_x, text_top; int slider_x, slider_width; int value_width; bool display_three_rows; struct viewport vp; viewport_set_defaults(&vp, display->screen_type); struct viewport * last_vp = display->set_viewport(&vp); display->clear_viewport(); if (display->depth > 1) { text_color = display->get_foreground(); background_color = display->get_background(); } /* Draw title string */ display->set_drawinfo(DRMODE_SOLID, text_color, background_color); vp.flags |= VP_FLAG_ALIGN_CENTER; display->putsxy(0, MARGIN_TOP, title); /* Get slider positions and top starting position */ max_label_width = label_get_max_width(display); char_height = display->getcharheight(); text_top = MARGIN_TOP + char_height + TITLE_MARGIN_BOTTOM + SELECTOR_TB_MARGIN; text_x = SELECTOR_WIDTH; slider_x = text_x + max_label_width + SLIDER_TEXT_MARGIN; slider_width = vp.width - text_x - slider_x - SLIDER_TEXT_MARGIN; if (display->depth >= 24) display->getstringsize("255", &value_width, NULL); else display->getstringsize("63", &value_width, NULL); slider_width -= value_width; line_height = char_height + 2*SELECTOR_TB_MARGIN; /* Find out if there's enough room for three sliders or just enough to display the selected slider - calculate total height of display with three sliders present */ display_three_rows = vp.height >= text_top + line_height*3 + /* Title + 3 sliders */ SWATCH_TOP_MARGIN + /* at least 2 lines */ char_height*2 + /* + margins for bottom */ MARGIN_BOTTOM; /* colored rectangle */ for (i = 0; i < 3; i++) { unsigned sb_flags = HORIZONTAL; int mode = DRMODE_SOLID; unsigned fg = text_color; unsigned bg = background_color; if (i == row) { display->set_drawinfo(DRMODE_SOLID, text_color, background_color); if (global_settings.cursor_style != 0) { /* Draw solid bar selection bar */ display->fillrect(0, text_top - SELECTOR_TB_MARGIN, vp.width, char_height + SELECTOR_TB_MARGIN*2); if (display->depth < 16) { sb_flags |= FOREGROUND | INNER_FILL; mode |= DRMODE_INVERSEVID; } } else if (display_three_rows) { /* Draw "> <" around sliders */ int top = text_top + (char_height - SELECTOR_HEIGHT) / 2; screen_put_iconxy(display, 0, top, Icon_Cursor); screen_put_iconxy(display, vp.width - SELECTOR_WIDTH, top, Icon_Cursor); } if (display->depth >= 16) { sb_flags |= FOREGROUND | INNER_BGFILL; mode = DRMODE_FG; fg = prim_rgb[SB_PRIM][i]; bg = prim_rgb[SB_FILL][i]; } } else if (!display_three_rows) continue; display->set_drawinfo(mode, fg, bg); /* Draw label */ vp.flags &= ~VP_FLAG_ALIGNMENT_MASK; display->putsxyf(text_x, text_top, "%c", str(LANG_COLOR_RGB_LABELS)[i]); /* Draw color value */ vp.flags |= VP_FLAG_ALIGN_RIGHT; if (display->depth >= 24) display->putsxyf(text_x, text_top, "%03d", rgb->rgb_val[i] & 0xFF); else display->putsxyf(text_x, text_top, "%02d", rgb->rgb_val[i] & 0x3F); /* Draw scrollbar */ gui_scrollbar_draw(display, /* screen */ slider_x, /* x */ text_top + char_height / 4, /* y */ slider_width, /* width */ char_height / 2, /* height */ rgb_max[i], /* items */ 0, /* min_shown */ rgb->rgb_val[i], /* max_shown */ sb_flags); /* flags */ /* Advance to next line */ text_top += line_height; } /* end for */ vp.flags |= VP_FLAG_ALIGN_CENTER; if (display->depth >= 16) { /* Display color swatch on color screens only */ int top = text_top + SWATCH_TOP_MARGIN; int width = vp.width - text_x*2; int height = vp.height - top - MARGIN_BOTTOM; /* Only draw if room */ if (height >= char_height + 2) { /* draw the big rectangle */ display->set_foreground(rgb->color); display->fillrect(text_x, top, width, height); /* Draw RGB: #rrggbb in middle of swatch */ display->set_drawinfo(DRMODE_FG, get_black_or_white(rgb), background_color); /* Format RGB: #rrggbb */ display->putsxyf(0, top + (height - char_height) / 2, str(LANG_COLOR_RGB_VALUE), rgb->red, rgb->green, rgb->blue); /* Draw border around the rect */ display->set_drawinfo(DRMODE_SOLID, text_color, background_color); display->drawrect(text_x, top, width, height); } } else { /* Display RGB value only centered on remaining display if room */ int top = text_top + SWATCH_TOP_MARGIN; int height = vp.height - top - MARGIN_BOTTOM; if (height >= char_height) { display->set_drawinfo(DRMODE_SOLID, text_color, background_color); /* Format RGB: #rrggbb */ display->putsxyf(0, top + (height - char_height) / 2, str(LANG_COLOR_RGB_VALUE), rgb->red, rgb->green, rgb->blue); } } display->update_viewport(); display->set_viewport(last_vp); } #ifdef HAVE_TOUCHSCREEN static int touchscreen_slider(struct screen *display, struct rgb_pick *rgb, int *selected_slider) { short x, y; int char_height, line_height; int max_label_width, value_width; int text_top, slider_x, slider_width; bool display_three_rows; int button; int pressed_slider; struct viewport vp; viewport_set_defaults(&vp, display->screen_type); struct viewport *last_vp = display->set_viewport(&vp); button = action_get_touchscreen_press_in_vp(&x, &y, &vp); if (button == ACTION_UNKNOWN || button == BUTTON_NONE) return ACTION_NONE; /* Get slider positions and top starting position * need vp.y here, because of the statusbar, since touchscreen * coordinates are absolute */ max_label_width = label_get_max_width(display); char_height = display->getcharheight(); text_top = MARGIN_TOP + char_height + TITLE_MARGIN_BOTTOM + SELECTOR_TB_MARGIN; slider_x = SELECTOR_WIDTH + max_label_width + SLIDER_TEXT_MARGIN; slider_width = vp.width - SELECTOR_WIDTH - slider_x - SLIDER_TEXT_MARGIN; if (display->depth >= 24) display->getstringsize("255", &value_width, NULL); else display->getstringsize("63", &value_width, NULL); slider_width -= value_width; line_height = char_height + 2*SELECTOR_TB_MARGIN; /* same logic as in draw_screen */ /* Find out if there's enough room for three sliders or just enough to display the selected slider - calculate total height of display with three sliders present */ display_three_rows = vp.height >= text_top + line_height*3 + /* Title + 3 sliders */ SWATCH_TOP_MARGIN + /* at least 2 lines */ char_height*2 + /* + margins for bottom */ MARGIN_BOTTOM; /* colored rectangle */ display->set_viewport(last_vp); if (y < text_top) { if (button == BUTTON_REL) return ACTION_STD_CANCEL; else return ACTION_NONE; } if (y >= text_top + line_height * (display_three_rows ? 3:1)) { /* touching the color area means accept */ if (button == BUTTON_REL) return ACTION_STD_OK; else return ACTION_NONE; } /* y is relative to the original viewport */ pressed_slider = (y - text_top)/line_height; if (pressed_slider != *selected_slider) *selected_slider = pressed_slider; /* add max_label_width to overcome integer division limits, * cap value later since that may lead to an overflow */ if (x < slider_x + (slider_width+max_label_width) && x > slider_x) { char computed_val; x -= slider_x; computed_val = (x*rgb_max[pressed_slider]/(slider_width)); rgb->rgb_val[pressed_slider] = MIN(computed_val,rgb_max[pressed_slider]); pack_rgb(rgb); } return ACTION_NONE; } #endif /*********** set_color returns true if USB was inserted, false otherwise color is a pointer to the colour (in native format) to modify set banned_color to -1 to allow all ***********/ bool set_color(struct screen *display, char *title, unsigned *color, unsigned banned_color) { int exit = 0, slider = 0; struct rgb_pick rgb; rgb.color = *color; while (!exit) { int button; unpack_rgb(&rgb); if (display != NULL) { draw_screen(display, title, &rgb, slider); } else { FOR_NB_SCREENS(i) draw_screen(&screens[i], title, &rgb, slider); } button = get_action(CONTEXT_SETTINGS_COLOURCHOOSER, TIMEOUT_BLOCK); #ifdef HAVE_TOUCHSCREEN if (button == ACTION_TOUCHSCREEN && display->screen_type == SCREEN_MAIN) button = touchscreen_slider(display, &rgb, &slider); #endif switch (button) { case ACTION_STD_PREV: case ACTION_STD_PREVREPEAT: slider = (slider + 2) % 3; break; case ACTION_STD_NEXT: case ACTION_STD_NEXTREPEAT: slider = (slider + 1) % 3; break; case ACTION_SETTINGS_INC: case ACTION_SETTINGS_INCREPEAT: if (rgb.rgb_val[slider] < rgb_max[slider]) rgb.rgb_val[slider]++; pack_rgb(&rgb); break; case ACTION_SETTINGS_DEC: case ACTION_SETTINGS_DECREPEAT: if (rgb.rgb_val[slider] > 0) rgb.rgb_val[slider]--; pack_rgb(&rgb); break; case ACTION_STD_OK: if (banned_color != (unsigned)-1 && banned_color == rgb.color) { splash(HZ*2, ID2P(LANG_COLOR_UNACCEPTABLE)); break; } *color = rgb.color; exit = 1; break; case ACTION_STD_CANCEL: exit = 1; break; default: if (default_event_handler(button) == SYS_USB_CONNECTED) return true; break; } } return false; }