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rockbox/apps/gui/viewport.c
Thomas Martitz 2eb1cb6f82 Fix buttonbar handling/theme changed handling in lists. 
The lists need to copy to a local parent if a list passes NULL as parent in the init. This was before the commit of custom ui vp, but I removed it since I (wrongly) thought using the ui vp as parent would be fine. Let the viewportmanager fire a event in case when a theme-related setting changed and simply the handling in the lists code.
However the buttonbar handling didn't work before anyway, since list code didn't know if the buttonbar was active (it asked a variable which was always false....).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22651 a1c6a512-1295-4272-9138-f99709370657
2009-09-07 17:37:06 +00:00

426 lines
12 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Jonathan Gordon
*
* 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 <stdlib.h>
#include "config.h"
#include "lcd.h"
#include "lcd-remote.h"
#include "font.h"
#include "sprintf.h"
#include "string.h"
#include "settings.h"
#include "kernel.h"
#include "system.h"
#include "misc.h"
#include "viewport.h"
#include "statusbar.h"
#include "screen_access.h"
#include "appevents.h"
/*some short cuts for fg/bg/line selector handling */
#ifdef HAVE_LCD_COLOR
#define LINE_SEL_FROM_SETTINGS(vp) \
do { \
vp->lss_pattern = global_settings.lss_color; \
vp->lse_pattern = global_settings.lse_color; \
vp->lst_pattern = global_settings.lst_color; \
} while (0)
#define FG_FALLBACK global_settings.fg_color
#define BG_FALLBACK global_settings.bg_color
#else
/* mono/greyscale doesn't have most of the above */
#define LINE_SEL_FROM_SETTINGS(vp)
#define FG_FALLBACK LCD_DEFAULT_FG
#define BG_FALLBACK LCD_DEFAULT_BG
#endif
static int statusbar_enabled = 0;
#ifdef HAVE_LCD_BITMAP
static struct {
struct viewport* vp;
int active[NB_SCREENS];
} ui_vp_info;
static struct viewport custom_vp[NB_SCREENS];
/* callbacks for GUI_EVENT_* events */
static void viewportmanager_ui_vp_changed(void *param);
static void statusbar_toggled(void* param);
static unsigned viewport_init_ui_vp(void);
#endif
static void viewportmanager_redraw(void* data);
int viewport_get_nb_lines(struct viewport *vp)
{
#ifdef HAVE_LCD_BITMAP
return vp->height/font_get(vp->font)->height;
#else
(void)vp;
return 2;
#endif
}
static bool showing_bars(enum screen_type screen)
{
if (statusbar_enabled & VP_SB_ONSCREEN(screen))
{
#ifdef HAVE_LCD_BITMAP
bool ignore = statusbar_enabled & VP_SB_IGNORE_SETTING(screen);
return ignore || (statusbar_position(screen));
#else
return true;
#endif
}
return false;
}
void viewport_set_fullscreen(struct viewport *vp, enum screen_type screen)
{
vp->x = 0;
vp->width = screens[screen].lcdwidth;
#ifdef HAVE_LCD_BITMAP
vp->drawmode = DRMODE_SOLID;
vp->font = FONT_UI; /* default to UI to discourage SYSFONT use */
vp->height = screens[screen].lcdheight;
if (statusbar_position(screen) != STATUSBAR_BOTTOM && showing_bars(screen))
vp->y = STATUSBAR_HEIGHT;
else
vp->y = 0;
#else
vp->y = 0;
#endif
vp->height = screens[screen].lcdheight - (showing_bars(screen)?STATUSBAR_HEIGHT:0);
#if LCD_DEPTH > 1
#ifdef HAVE_REMOTE_LCD
/* We only need this test if there is a remote LCD */
if (screen == SCREEN_MAIN)
#endif
{
vp->fg_pattern = FG_FALLBACK;
vp->bg_pattern = BG_FALLBACK;
LINE_SEL_FROM_SETTINGS(vp);
}
#endif
#if defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1
if (screen == SCREEN_REMOTE)
{
vp->fg_pattern = LCD_REMOTE_DEFAULT_FG;
vp->bg_pattern = LCD_REMOTE_DEFAULT_BG;
}
#endif
}
void viewport_set_defaults(struct viewport *vp, enum screen_type screen)
{
#ifdef HAVE_LCD_BITMAP
if (ui_vp_info.active[screen])
*vp = custom_vp[screen];
else
#endif
viewport_set_fullscreen(vp, screen);
}
void viewportmanager_init(void)
{
#ifdef HAVE_LCD_BITMAP
int retval, i;
add_event(GUI_EVENT_STATUSBAR_TOGGLE, false, statusbar_toggled);
retval = viewport_init_ui_vp();
FOR_NB_SCREENS(i)
ui_vp_info.active[i] = retval & BIT_N(i);
ui_vp_info.vp = custom_vp;
#endif
viewportmanager_set_statusbar(VP_SB_ALLSCREENS);
}
int viewportmanager_get_statusbar(void)
{
return statusbar_enabled;
}
int viewportmanager_set_statusbar(int enabled)
{
int old = statusbar_enabled;
statusbar_enabled = enabled;
if (enabled)
{
int i;
FOR_NB_SCREENS(i)
{
if (showing_bars(i))
gui_statusbar_draw(&statusbars.statusbars[i], true);
}
add_event(GUI_EVENT_ACTIONUPDATE, false, viewportmanager_redraw);
}
else
{
remove_event(GUI_EVENT_ACTIONUPDATE, viewportmanager_redraw);
}
return old;
}
static void viewportmanager_redraw(void* data)
{
int i;
FOR_NB_SCREENS(i)
{
if (showing_bars(i))
gui_statusbar_draw(&statusbars.statusbars[i], NULL != data);
}
}
#ifdef HAVE_LCD_BITMAP
static void statusbar_toggled(void* param)
{
(void)param;
/* update vp manager for the new setting and reposition vps
* if necessary */
viewportmanager_theme_changed(THEME_STATUSBAR);
}
void viewportmanager_theme_changed(int which)
{
int i;
#ifdef HAVE_BUTTONBAR
if (which & THEME_BUTTONBAR)
{ /* don't handle further, the custom ui viewport ignores the buttonbar,
* as does viewport_set_defaults(), since only lists use it*/
screens[SCREEN_MAIN].has_buttonbar = global_settings.buttonbar;
}
#endif
if (which & THEME_UI_VIEWPORT)
{
int retval = viewport_init_ui_vp();
/* reset the ui viewport */
FOR_NB_SCREENS(i)
ui_vp_info.active[i] = retval & BIT_N(i);
if (retval != 0)
add_event(GUI_EVENT_REFRESH, false, viewportmanager_ui_vp_changed);
else
remove_event(GUI_EVENT_REFRESH, viewportmanager_ui_vp_changed);
/* and point to it */
ui_vp_info.vp = custom_vp;
}
if (which & THEME_STATUSBAR)
{
statusbar_enabled = VP_SB_HIDE_ALL;
FOR_NB_SCREENS(i)
{
if (statusbar_position(i) != STATUSBAR_OFF)
statusbar_enabled |= VP_SB_ONSCREEN(i);
}
if (statusbar_enabled != VP_SB_HIDE_ALL)
add_event(GUI_EVENT_ACTIONUPDATE, false, viewportmanager_redraw);
else
remove_event(GUI_EVENT_ACTIONUPDATE, viewportmanager_redraw);
/* reposition viewport to fit statusbar, only if not using the ui vp */
FOR_NB_SCREENS(i)
{
if (!ui_vp_info.active[i])
viewport_set_fullscreen(&custom_vp[i], i);
}
}
send_event(GUI_EVENT_THEME_CHANGED, NULL);
}
static void viewportmanager_ui_vp_changed(void *param)
{
/* if the user changed the theme, we need to initiate a full redraw */
int i;
/* cast param to a function */
void (*draw_func)(void) = ((void(*)(void))param);
/* start with clearing the screen */
FOR_NB_SCREENS(i)
screens[i].clear_display();
/* redraw the statusbar if it was enabled */
viewportmanager_set_statusbar(statusbar_enabled);
/* call the passed function which will redraw the content of
* the current screen */
if (param != NULL)
draw_func();
FOR_NB_SCREENS(i)
screens[i].update();
}
void viewport_set_current_vp(struct viewport* vp)
{
if (vp != NULL)
ui_vp_info.vp = vp;
else
ui_vp_info.vp = custom_vp;
}
struct viewport* viewport_get_current_vp(void)
{
return ui_vp_info.vp;
}
bool viewport_ui_vp_get_state(enum screen_type screen)
{
return ui_vp_info.active[screen];
}
#ifdef HAVE_LCD_COLOR
#define ARG_STRING(_depth) ((_depth) == 2 ? "dddddgg":"dddddcc")
#else
#define ARG_STRING(_depth) "dddddgg"
#endif
const char* viewport_parse_viewport(struct viewport *vp,
enum screen_type screen,
const char *bufptr,
const char separator)
{
/* parse the list to the viewport struct */
const char *ptr = bufptr;
int depth;
uint32_t set = 0;
enum {
PL_X = 0,
PL_Y,
PL_WIDTH,
PL_HEIGHT,
PL_FONT,
PL_FG,
PL_BG,
};
/* Work out the depth of this display */
depth = screens[screen].depth;
#if (LCD_DEPTH == 1) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH == 1)
if (depth == 1)
{
if (!(ptr = parse_list("ddddd", &set, separator, ptr,
&vp->x, &vp->y, &vp->width, &vp->height, &vp->font)))
return NULL;
}
else
#endif
#if (LCD_DEPTH > 1) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1)
if (depth >= 2)
{
if (!(ptr = parse_list(ARG_STRING(depth), &set, separator, ptr,
&vp->x, &vp->y, &vp->width, &vp->height, &vp->font,
&vp->fg_pattern,&vp->bg_pattern)))
return NULL;
}
else
#endif
{}
#undef ARG_STRING
/* X and Y *must* be set */
if (!LIST_VALUE_PARSED(set, PL_X) || !LIST_VALUE_PARSED(set, PL_Y))
return NULL;
/* fix defaults */
if (!LIST_VALUE_PARSED(set, PL_WIDTH))
vp->width = screens[screen].lcdwidth - vp->x;
if (!LIST_VALUE_PARSED(set, PL_HEIGHT))
vp->height = screens[screen].lcdheight - vp->y;
#if (LCD_DEPTH > 1) || (defined(HAVE_REMOTE_LCD) && LCD_REMOTE_DEPTH > 1)
if (!LIST_VALUE_PARSED(set, PL_FG))
vp->fg_pattern = FG_FALLBACK;
if (!LIST_VALUE_PARSED(set, PL_BG))
vp->bg_pattern = BG_FALLBACK;
#endif /* LCD_DEPTH > 1 || LCD_REMOTE_DEPTH > 1 */
LINE_SEL_FROM_SETTINGS(vp);
/* Validate the viewport dimensions - we know that the numbers are
non-negative integers, ignore bars and assume the viewport takes them
* into account */
if ((vp->x >= screens[screen].lcdwidth) ||
((vp->x + vp->width) > screens[screen].lcdwidth) ||
(vp->y >= screens[screen].lcdheight) ||
((vp->y + vp->height) > screens[screen].lcdheight))
{
return NULL;
}
/* Default to using the user font if the font was an invalid number or '-'*/
if (((vp->font != FONT_SYSFIXED) && (vp->font != FONT_UI))
|| !LIST_VALUE_PARSED(set, PL_FONT)
)
vp->font = FONT_UI;
/* Set the defaults for fields not user-specified */
vp->drawmode = DRMODE_SOLID;
return ptr;
}
/*
* (re)parse the UI vp from the settings
* - Returns
* 0 if no UI vp is used at all
* else the bit for the screen (1<<screen) is set
*/
static unsigned viewport_init_ui_vp(void)
{
int screen;
unsigned ret = 0;
char *setting;
FOR_NB_SCREENS(screen)
{
#ifdef HAVE_REMOTE_LCD
if ((screen == SCREEN_REMOTE))
setting = global_settings.remote_ui_vp_config;
else
#endif
setting = global_settings.ui_vp_config;
if (!(viewport_parse_viewport(&custom_vp[screen], screen,
setting, ',')))
viewport_set_fullscreen(&custom_vp[screen], screen);
else
ret |= BIT_N(screen);
}
return ret;
}
#ifdef HAVE_TOUCHSCREEN
/* check if a point (x and y coordinates) are within a viewport */
bool viewport_point_within_vp(const struct viewport *vp, int x, int y)
{
bool is_x = (x >= vp->x && x < (vp->x + vp->width));
bool is_y = (y >= vp->y && y < (vp->y + vp->height));
return (is_x && is_y);
}
#endif /* HAVE_TOUCHSCREEN */
#endif /* HAVE_LCD_BITMAP */
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