/* $Id: widget.h,v 1.20 2006/08/08 20:16:29 harbaum Exp $
*
* generic widget handling
*
* Copyright (C) 2003, 2004 Michael Reinelt <reinelt@eunet.at>
* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* This file is part of LCD4Linux.
*
* LCD4Linux 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, or (at your option)
* any later version.
*
* LCD4Linux 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*
* $Log: widget.h,v $
* Revision 1.20 2006/08/08 20:16:29 harbaum
* Added "extracolor" (used for e.g. bar border) and RGB support for LEDMATRIX
*
* Revision 1.19 2006/02/21 15:55:59 cmay
* removed new update function for keypad, consolidated it with draw
*
* Revision 1.18 2006/02/21 05:50:34 reinelt
* keypad support from Cris Maj
*
* Revision 1.17 2006/01/30 05:47:38 reinelt
* graphic subsystem changed to full-color RGBA
*
* Revision 1.16 2006/01/23 06:17:18 reinelt
* timer widget added
*
* Revision 1.15 2005/12/18 16:18:36 reinelt
* GPO's added again
*
* Revision 1.14 2005/11/06 09:17:20 reinelt
* re-use icons (thanks to Jesus de Santos Garcia)
*
* Revision 1.13 2005/05/08 04:32:45 reinelt
* CodingStyle added and applied
*
* Revision 1.12 2005/01/18 06:30:24 reinelt
* added (C) to all copyright statements
*
* Revision 1.11 2004/06/26 12:05:00 reinelt
*
* uh-oh... the last CVS log message messed up things a lot...
*
* Revision 1.10 2004/06/26 09:27:21 reinelt
*
* added '-W' to CFLAGS
* changed all C++ comments to C ones
* cleaned up a lot of signed/unsigned mistakes
*
* Revision 1.9 2004/06/20 10:09:56 reinelt
*
* 'const'ified the whole source
*
* Revision 1.8 2004/03/03 03:47:04 reinelt
* big patch from Martin Hejl:
* - use qprintf() where appropriate
* - save CPU cycles on gettimeofday()
* - add quit() functions to free allocated memory
* - fixed lots of memory leaks
*
* Revision 1.7 2004/01/14 11:33:00 reinelt
* new plugin 'uname' which does what it's called
* text widget nearly finished
* first results displayed on MatrixOrbital
*
* Revision 1.6 2004/01/13 08:18:20 reinelt
* timer queues added
* liblcd4linux deactivated turing transformation to new layout
*
* Revision 1.5 2004/01/11 18:26:02 reinelt
* further widget and layout processing
*
* Revision 1.4 2004/01/10 20:22:33 reinelt
* added new function 'cfg_list()' (not finished yet)
* added layout.c (will replace processor.c someday)
* added widget_text.c (will be the first and most important widget)
* modified lcd4linux.c so that old-style configs should work, too
*
* Revision 1.3 2004/01/10 17:34:40 reinelt
* further matrixOrbital changes
* widgets initialized
*
* Revision 1.2 2003/10/05 17:58:50 reinelt
* libtool junk; copyright messages cleaned up
*
* Revision 1.1 2003/09/19 03:51:29 reinelt
* minor fixes, widget.c added
*
*/
#ifndef _WIDGET_H_
#define _WIDGET_H_
#include "rgb.h"
struct WIDGET; /* forward declaration */
typedef struct WIDGET_CLASS {
char *name;
int type;
int (*init) (struct WIDGET * Self);
int (*draw) (struct WIDGET * Self);
int (*find) (struct WIDGET * Self, void *needle);
int (*quit) (struct WIDGET * Self);
} WIDGET_CLASS;
typedef struct WIDGET {
char *name;
WIDGET_CLASS *class;
struct WIDG/* $Id$
* $URL$
*
* new style X11 Driver for LCD4Linux
*
* Copyright (C) 2003 Michael Reinelt <reinelt@eunet.at>
* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* based on the old XWindow.c which is
* Copyright (C) 2000 Herbert Rosmanith <herp@wildsau.idv.uni-linz.ac.at>
*
* This file is part of LCD4Linux.
*
* LCD4Linux 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, or (at your option)
* any later version.
*
* LCD4Linux 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 this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
/*
*
* exported fuctions:
*
* struct DRIVER drv_X11
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <termios.h>
#include <fcntl.h>
#include <sys/time.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "timer.h"
#include "plugin.h"
#include "drv.h"
#include "widget.h"
#include "widget_keypad.h"
#include "drv_generic_graphic.h"
#include "drv_generic_keypad.h"
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif
static char Name[] = "X11";
static int pixel = -1; /* pointsize in pixel */
static int pgap = 0; /* gap between points */
static int rgap = 0; /* row gap between lines */
static int cgap = 0; /* column gap between characters */
static int border = 0; /* window border */
static int buttons = 0; /* number of keypad buttons */
static int btnwidth = 0;
static int btnheight = 0;
static int dimx, dimy; /* total window dimension in pixel */
static RGBA *drv_X11_FB = NULL;
static Display *dp;
static int sc, dd;
static Window w, rw;
static Visual *vi;
static GC gc;
static Colormap cm;
static XColor xc;
static Pixmap pm;
/****************************************/
/*** hardware dependant functions ***/
/****************************************/
static void drv_X11_color(RGBA c)
{
xc.red = 255 * c.R;
xc.green = 255 * c.G;
xc.blue = 255 * c.B;
xc.flags = DoRed | DoGreen | DoBlue;
if (XAllocColor(dp, cm, &xc) == False) {
error("%s: XAllocColor(%02x%02x%02x) failed!", Name, c.R, c.G, c.B);
}
XSetForeground(dp, gc, xc.pixel);
XSetBackground(dp, gc, xc.pixel);
}
static void drv_X11_blit(const int row, const int col, const int height, const int width)
{
int r, c;
int dirty = 0;
for (r = row; r < row + height; r++) {
int y = border + (r / YRES) * rgap + r * (pixel + pgap);
for (c = col; c < col + width; c++) {
int x = border + (c / XRES) * cgap + c * (pixel + pgap);
RGBA p1 = drv_X11_FB[r * DCOLS + c];
RGBA p2 = drv_generic_graphic_rgb(r, c);
if (p1.R != p2.R || p1.G != p2.G || p1.B != p2.B) {
drv_X11_color(p2);
XFillRectangle(dp, w, gc, x, y, pixel, pixel);
drv_X11_FB[r * DCOLS + c] = p2;
dirty = 1;
}
}
}
if (dirty) {
XSync(dp, False);
}
}
static int drv_X11_brightness(int brightness)
{
static unsigned char Brightness = 0;
RGBA col = BL_COL;
int i;
float dim;
/* -1 is used to query the current brightness */
if (brightness == -1)
return Brightness;
if (brightness < 0)
brightness = 0;
if (brightness > 255)
brightness = 255;
Brightness = brightness;
dim = Brightness / 255.0;
col.R *= dim;
col.G *= dim;
col.B *= dim;
debug("%s: set backlight to %d%%, bl_col=0x%8x, dimmed=0x%8x", Name, (int)(dim * 100), BL_COL, col);
for (i = 0; i < DCOLS * DROWS; i++) {
drv_X11_FB[i] = col;
}
drv_X11_color(col);
XFillRectangle(dp, pm, gc, 0, 0, dimx + 2 * border + btnwidth, dimy + 2 * border);
XSetWindowBackground(dp, w, xc.pixel);
XClearWindow(dp, w);
return Brightness;
}
static int drv_X11_keypad(const int num)
{
int val = WIDGET_KEY_PRESSED;
switch (num) {
case 1:
val += WIDGET_KEY_UP;
break;
case 2:
val += WIDGET_KEY_DOWN;
break;
case 3:
val += WIDGET_KEY_LEFT;
break;
case 4:
val += WIDGET_KEY_RIGHT;
break;
case 5:
val += WIDGET_KEY_CONFIRM;
break;
case 6:
val += WIDGET_KEY_CANCEL;
break;
default:
error("%s: unknown keypad value %d", Name, num);
}
debug("%s: key %c (0x%x) pressed", Name, num, num);
return val;
}
static void drv_X11_expose(const int x, const int y, const int width, const int height)
{
/*
* theory of operation:
* instead of the old, fully-featured but complicated update
* region calculation, we do an update of the whole display,
* but check before every pixel if the pixel region is inside
* the update region.
*/
int r, c;
int x0, y0;
int x1, y1;
XFontStruct *xfs;
int xoffset = border + (DCOLS / XRES) * cgap + DCOLS * (pixel + pgap);
int yoffset = border + (DROWS / YRES) * rgap;
int yk;
char *s;
char unknownTxt[10];
x0 = x - pixel;
x1 = x + pixel + width;
y0 = y - pixel;
y1 = y + pixel + height;
for (r = 0; r < DROWS; r++) {
int yc = border + (r / YRES) * rgap + r * (pixel + pgap);
if (yc < y0 || yc > y1)
continue;
for (c = 0; c < DCOLS; c++) {
int xc = border + (c / XRES) * cgap + c * (pixel + pgap);
if (xc < x0 || xc > x1)
continue;
drv_X11_color(drv_generic_graphic_rgb(r, c));
XFillRectangle(dp, w, gc, xc, yc, pixel, pixel);
}
}
/* Keypad on the right side */
if (x1 >= xoffset) {
xfs = XQueryFont(dp, XGContextFromGC(DefaultGC(dp, 0)));
drv_X11_color(FG_COL);
for (r = 0; r < buttons; r++) {
yk = yoffset + r * (btnheight + pgap);
switch(r) {
case 0:
s = "Up";
break;
case 1:
s = "Down";
break;
case 2:
s = "Left";
break;
case 3:
s = "Right";
break;
case 4:
s = "Confirm";
break;
case 5:
s = "Cancel";
break;
default:
snprintf(unknownTxt, sizeof(unknownTxt), "#%d??", r);
s = unknownTxt;
}
XDrawRectangle(dp, w, gc, xoffset, yk, btnwidth, btnheight - 2);
XDrawString(dp, w, gc,
xoffset + btnwidth / 2 - (xfs->max_bounds.width * strlen(s)) / 2, yk + btnheight / 2 + xfs->max_bounds.ascent / 2,
s, strlen(s));
}
}
//XSync(dp, False);
}
static void drv_X11_timer( __attribute__ ((unused))
void *notused)
{
XEvent ev;
int xoffset = border + (DCOLS / XRES) * cgap + DCOLS * (pixel + pgap);
int yoffset = border + (DROWS / YRES) * rgap;
static int btn = 0;
if (XCheckWindowEvent(dp, w, ExposureMask | ButtonPressMask | ButtonReleaseMask, &ev) == 0)
return;
switch(ev.type) {
case Expose:
drv_X11_expose(ev.xexpose.x, ev.xexpose.y, ev.xexpose.width, ev.xexpose.height);
break;
case ButtonPress:
if ( ev.xbutton.x >= xoffset && ev.xbutton.x <= xoffset + btnwidth
&& ev.xbutton.y >= yoffset && ev.xbutton.y <= yoffset + buttons * btnheight + (buttons -1 ) *pgap ) {
btn = (ev.xbutton.y - yoffset) / (btnheight + pgap) + 1; /* btn 0 is unused */
drv_X11_color(BG_COL);
XFillRectangle(dp, w, gc, xoffset + 1, yoffset + (btn - 1) * (btnheight + pgap) + 1, btnwidth - 1, btnheight - 2 - 1);
drv_generic_keypad_press(btn);
}
break;
case ButtonRelease:
if ( ev.xbutton.x >= xoffset && ev.xbutton.x <= xoffset + btnwidth
&& ev.xbutton.y >= yoffset && ev.xbutton.y <= yoffset + buttons * btnheight + (buttons -1 ) *pgap ) {
XClearArea(dp, w, xoffset, yoffset + (btn - 1) * (btnheight + pgap), btnwidth, btnheight - 2, 1 /* true */);
btn = (ev.xbutton.y - yoffset) / (btnheight + pgap) + 1; /* btn 0 is unused */
info("%s: Button %d released", Name, btn);
}
break;
default:
debug("%s: unknown XEvent %d", Name, ev.type);
}
}
static int drv_X11_start(const char *section)
{
int i;
char *s;
XSetWindowAttributes wa;
XSizeHints sh;
XEvent ev;
/* read display size from config */
if (sscanf(s = cfg_get(section, "Size", "120x32"), "%dx%d", &DCOLS, &DROWS) != 2 || DCOLS < 1 || DROWS < 1) {
error("%s: bad %s.Size '%s' from %s", Name, section, s, cfg_source());
free(s);
return -1;
}
free(s);
if (sscanf(s = cfg_get(section, "font", "5x8"), "%dx%d", &XRES, &YRES) != 2 || XRES < 1 || YRES < 1) {
error("%s: bad %s.font '%s' from %s", Name, section, s, cfg_source());
free(s);
return -1;
}
free(s);
if (sscanf(s = cfg_get(section, "pixel", "4+1"), "%d+%d", &pixel, &pgap) != 2 || pixel < 1 || pgap < 0) {
error("%s: bad %s.pixel '%s' from %s", Name, section, s, cfg_source());
free(s);
return -1;
}
free(s);
if (sscanf(s = cfg_get(section, "gap", "-1x-1"), "%dx%d", &cgap, &rgap) != 2 || cgap < -1 || rgap < -1) {
error("%s: bad %s.gap '%s' from %s", Name, section, s, cfg_source());
free(s);
return -1;
}
free(s);
if (rgap < 0)
rgap = pixel + pgap;
if (cgap < 0)
cgap = pixel + pgap;
if (cfg_number(section, "border", 0, 0, -1, &border) < 0)
return -1;
/* we need the basecolor for the brightness early */
s = cfg_get(section, "basecolor", "000000ff");
if (color2RGBA(s, &BL_COL) < 0) {
error("%s: ignoring illegal color '%s'", Name, s);
}
free(s);
/* virtual keyboard: number of buttons (0..6) */
if (cfg_number(section, "buttons", 0, 0, 6, &buttons) < 0)
return -1;
drv_X11_FB = malloc(DCOLS * DROWS * sizeof(*drv_X11_FB));
if (drv_X11_FB == NULL) {
error("%s: framebuffer could not be allocated: malloc() failed", Name);
return -1;
}
for (i = 0; i < DCOLS * DROWS; i++) {
drv_X11_FB[i] = BL_COL;
}
if ((dp = XOpenDisplay(NULL)) == NULL) {
error("%s: can't open display", Name);
return -1;
}
sc = DefaultScreen(dp);
gc = DefaultGC(dp, sc);
vi = DefaultVisual(dp, sc);
dd = DefaultDepth(dp, sc);
rw = DefaultRootWindow(dp);
cm = DefaultColormap(dp, sc);
dimx = DCOLS * pixel + (DCOLS - 1) * pgap + (DCOLS / XRES - 1) * cgap;
dimy = DROWS * pixel + (DROWS - 1) * pgap + (DROWS / YRES - 1) * rgap;
if (buttons != 0) {
btnwidth = (DCOLS * pixel + (DCOLS - 1) * pgap) / 10;
btnheight = (DROWS * pixel + (DROWS - 1) * pgap) / buttons;
}
wa.event_mask = ExposureMask | ButtonPressMask | ButtonReleaseMask;
sh.min_width = sh.max_width = dimx + 2 * border + btnwidth;
sh.min_height = sh.max_height = dimy + 2 * border;
sh.flags = PPosition | PSize | PMinSize | PMaxSize;
w = XCreateWindow(dp, rw, 0, 0, sh.min_width, sh.min_height, 0, 0, InputOutput, vi, CWEventMask, &wa);
pm = XCreatePixmap(dp, w, dimx, dimy, dd);
XSetWMProperties(dp, w, NULL, NULL, NULL, 0, &sh, NULL, NULL);
drv_X11_color(BL_COL);
XFillRectangle(dp, pm, gc, 0, 0, sh.min_width, sh.min_height);
XSetWindowBackground(dp, w, xc.pixel);
XClearWindow(dp, w);
/* set brightness (after first background painting) */
if (cfg_number(section, "Brightness", 0, 0, 255, &i) > 0) {
drv_X11_brightness(i);
}
XStoreName(dp, w, "LCD4Linux");
XMapWindow(dp, w);
XFlush(dp);
while (1) {
XNextEvent(dp, &ev);
if (ev.type == Expose && ev.xexpose.count == 0)
break;
}
/* regularly process X events */
/* Fixme: make 20msec configurable */
timer_add(drv_X11_timer, NULL, 20, 0);
return 0;
}
/****************************************/
/*** plugins ***/
/****************************************/
static void plugin_brightness(RESULT * result, const int argc, RESULT * argv[])
{
double brightness;
switch (argc) {
case 0:
brightness = drv_X11_brightness(-1);
SetResult(&result, R_NUMBER, &brightness);
break;
case 1:
brightness = drv_X11_brightness(R2N(argv[0]));
SetResult(&result, R_NUMBER, &brightness);
break;
default:
error("%s.brightness(): wrong number of parameters", Name);
SetResult(&result, R_STRING, "");
}
}
/****************************************/
/*** exported functions ***/
/****************************************/
/* list models */
int drv_X11_list(void)
{
printf("any");
return 0;
}
/* initialize driver & display */
int drv_X11_init(const char *section, const int quiet)
{
int ret;
info("%s: %s", Name, "$Rev$");
/* start display */
if ((ret = drv_X11_start(section)) != 0)
return ret;
/* real worker functions */
drv_generic_graphic_real_blit = drv_X11_blit;
drv_generic_keypad_real_press = drv_X11_keypad;
/* initialize generic graphic driver */
if ((ret = drv_generic_graphic_init(section, Name)) != 0)
return ret;
/* initialize generic key pad driver */
if ((ret = drv_generic_keypad_init(section, Name)) != 0)
return ret;
drv_generic_graphic_clear();
/* initially expose window */
drv_X11_expose(0, 0, dimx + 2 * border, dimy + 2 * border);
if (!quiet) {
char buffer[40];
qprintf(buffer, sizeof(buffer), "%s %dx%d", Name, DCOLS, DROWS);
if (drv_generic_graphic_greet(buffer, NULL)) {
sleep(3);
drv_generic_graphic_clear();
}
}
/* register plugins */
AddFunction("LCD::brightness", -1, plugin_brightness);
return 0;
}
/* close driver & display */
int drv_X11_quit(const __attribute__ ((unused))
int quiet)
{
info("%s: shutting down.", Name);
drv_generic_graphic_quit();
drv_generic_keypad_quit();
if (drv_X11_FB) {
free(drv_X11_FB);
drv_X11_FB = NULL;
}
return (0);
}
DRIVER drv_X11 = {
.name = Name,
.list = drv_X11_list,
.init = drv_X11_init,
.quit = drv_X11_quit,
};
