[lcd4linux @ 2006-01-22 09:16:05 by reinelt]

Image Widget framework added

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@621 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

6 files changed, 245 insertions, 6 deletions

diff --git a/Makefile.am b/Makefile.am
index a407421..7d9b8dc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -31,6 +31,7 @@ widget.c      widget.h      \
 widget_text.c widget_text.h \
 widget_bar.c  widget_bar.h  \
 widget_icon.c widget_icon.h \
+widget_image.c widget_image.h \
 widget_gpo.c  widget_gpo.h  \
                             \
 plugin.c      plugin.h      \
diff --git a/Makefile.in b/Makefile.in
index 1648abb..02632af 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -101,7 +101,7 @@ lcd4linux_LDFLAGS =
 lcd4linux_LDADD = @DRIVERS@ @PLUGINS@ @DRVLIBS@ @PLUGINLIBS@
 lcd4linux_DEPENDENCIES = @DRIVERS@ @PLUGINS@
 
-lcd4linux_SOURCES =  lcd4linux.c                 cfg.c         cfg.h         debug.c       debug.h       drv.c         drv.h         evaluator.c   evaluator.h   hash.c        hash.h        layout.c      layout.h      pid.c         pid.h         timer.c       timer.h       thread.c      thread.h      udelay.c      udelay.h      qprintf.c     qprintf.h                                 widget.c      widget.h      widget_text.c widget_text.h widget_bar.c  widget_bar.h  widget_icon.c widget_icon.h widget_gpo.c  widget_gpo.h                              plugin.c      plugin.h      plugin_cfg.c                plugin_math.c               plugin_string.c             plugin_test.c               plugin_time.c
+lcd4linux_SOURCES =  lcd4linux.c                 cfg.c         cfg.h         debug.c       debug.h       drv.c         drv.h         evaluator.c   evaluator.h   hash.c        hash.h        layout.c      layout.h      pid.c         pid.h         timer.c       timer.h       thread.c      thread.h      udelay.c      udelay.h      qprintf.c     qprintf.h                                 widget.c      widget.h      widget_text.c widget_text.h widget_bar.c  widget_bar.h  widget_icon.c widget_icon.h widget_image.c widget_image.h widget_gpo.c  widget_gpo.h                              plugin.c      plugin.h      plugin_cfg.c                plugin_math.c               plugin_string.c             plugin_test.c               plugin_time.c
 
 
 EXTRA_lcd4linux_SOURCES =  drv_generic_text.c          drv_generic_text.h          drv_generic_graphic.c       drv_generic_graphic.h       drv_generic_gpio.c          drv_generic_gpio.h          drv_generic_serial.c        drv_generic_serial.h        drv_generic_parport.c       drv_generic_parport.h       drv_generic_i2c.c           drv_generic_i2c.h           drv_BeckmannEgle.c          drv_BWCT.c                  drv_Crystalfontz.c          drv_Curses.c                drv_Cwlinux.c               drv_G15.c                   drv_HD44780.c               drv_Image.c                 drv_LCDLinux.c              drv_LCDTerm.c               drv_LPH7508.c               drv_LUIse.c                 drv_M50530.c                drv_MatrixOrbital.c         drv_MilfordInstruments.c    drv_Noritake.c              drv_NULL.c                  drv_RouterBoard.c           drv_Sample.c                drv_serdisplib.c            drv_SimpleLCD.c             drv_T6963.c                 drv_Trefon.c                drv_USBLCD.c                drv_WincorNixdorf.c         drv_X11.c                                               font_6x8.h                                              lcd4linux_i2c.h                                         plugin_apm.c                plugin_cpuinfo.c            plugin_diskstats.c          plugin_dvb.c                plugin_exec.c               plugin_i2c_sensors.c        plugin_imon.c               plugin_isdn.c               plugin_loadavg.c            plugin_meminfo.c            plugin_mysql.c              plugin_netdev.c             plugin_pop3.c               plugin_ppp.c                plugin_proc_stat.c          plugin_python.c             plugin_sample.c             plugin_seti.c               plugin_statfs.c             plugin_uname.c              plugin_uptime.c             plugin_wireless.c           plugin_xmms.c
@@ -126,8 +126,9 @@ X_EXTRA_LIBS = @X_EXTRA_LIBS@
 X_PRE_LIBS = @X_PRE_LIBS@
 lcd4linux_OBJECTS =  lcd4linux.o cfg.o debug.o drv.o evaluator.o hash.o \
 layout.o pid.o timer.o thread.o udelay.o qprintf.o widget.o \
-widget_text.o widget_bar.o widget_icon.o widget_gpo.o plugin.o \
-plugin_cfg.o plugin_math.o plugin_string.o plugin_test.o plugin_time.o
+widget_text.o widget_bar.o widget_icon.o widget_image.o widget_gpo.o \
+plugin.o plugin_cfg.o plugin_math.o plugin_string.o plugin_test.o \
+plugin_time.o
 CFLAGS = @CFLAGS@
 COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 CCLD = $(CC)
@@ -166,7 +167,7 @@ DEP_FILES =  .deps/cfg.P .deps/debug.P .deps/drv.P .deps/drv_BWCT.P \
 .deps/plugin_uptime.P .deps/plugin_wireless.P .deps/plugin_xmms.P \
 .deps/qprintf.P .deps/thread.P .deps/timer.P .deps/udelay.P \
 .deps/widget.P .deps/widget_bar.P .deps/widget_gpo.P \
-.deps/widget_icon.P .deps/widget_text.P
+.deps/widget_icon.P .deps/widget_image.P .deps/widget_text.P
 SOURCES = $(lcd4linux_SOURCES) $(EXTRA_lcd4linux_SOURCES)
 OBJECTS = $(lcd4linux_OBJECTS)
 
diff --git a/configure b/configure
index 1087c51..ecae60f 100755
--- a/configure
+++ b/configure
@@ -6320,6 +6320,7 @@ I2C="no"
 
 if test "$BECKMANNEGLE" = "yes"; then
    TEXT="yes"
+   GPIO="yes"
    SERIAL="yes"
    DRIVERS="$DRIVERS drv_BeckmannEgle.o"
 
@@ -6347,6 +6348,7 @@ fi
 
 if test "$CRYSTALFONTZ" = "yes"; then
    TEXT="yes"
+   GPIO="yes"
    SERIAL="yes"
    DRIVERS="$DRIVERS drv_Crystalfontz.o"
 
@@ -6375,6 +6377,7 @@ fi
 
 if test "$CWLINUX" = "yes"; then
    TEXT="yes"
+   GPIO="yes"
    SERIAL="yes"
    DRIVERS="$DRIVERS drv_Cwlinux.o"
 
@@ -6441,8 +6444,8 @@ fi
 
 if test "$LPH7508" = "yes"; then
    GRAPHICS="yes"
-   PARPORT="yes"
    GPIO="yes"
+   PARPORT="yes"
    DRIVERS="$DRIVERS drv_LPH7508.o"
 
 cat >>confdefs.h <<\_ACEOF
@@ -6469,6 +6472,7 @@ fi
 
 if test "$M50530" = "yes"; then
    TEXT="yes"
+   GPIO="yes"
    PARPORT="yes"
    DRIVERS="$DRIVERS drv_M50530.o"
 
@@ -6480,6 +6484,7 @@ fi
 
 if test "$MATRIXORBITAL" = "yes"; then
    TEXT="yes"
+   GPIO="yes"
    SERIAL="yes"
    DRIVERS="$DRIVERS drv_MatrixOrbital.o"
 
@@ -6553,6 +6558,7 @@ fi
 
 if test "$ROUTERBOARD" = "yes"; then
    TEXT="yes"
+   GPIO="yes"
    DRIVERS="$DRIVERS drv_RouterBoard.o"
 
 cat >>confdefs.h <<\_ACEOF
diff --git a/drv_X11.c b/drv_X11.c
index 326df6a..28e2e54 100644
--- a/drv_X11.c
+++ b/drv_X11.c
@@ -1,4 +1,4 @@
-/* $Id: drv_X11.c,v 1.11 2005/05/08 04:32:44 reinelt Exp $
+/* $Id: drv_X11.c,v 1.12 2006/01/22 09:16:11 reinelt Exp $
  *
  * new style X11 Driver for LCD4Linux 
  *
@@ -26,6 +26,9 @@
  *
  *
  * $Log: drv_X11.c,v $
+ * Revision 1.12  2006/01/22 09:16:11  reinelt
+ * Image Widget framework added
+ *
  * Revision 1.11  2005/05/08 04:32:44  reinelt
  * CodingStyle added and applied
  *
@@ -102,6 +105,7 @@
 #include "widget.h"
 #include "widget_text.h"
 #include "widget_icon.h"
+#include "widget_image.h"
 #include "widget_bar.h"
 #include "drv.h"
 #include "drv_generic_graphic.h"
@@ -366,6 +370,7 @@ static int drv_X11_start(const char *section)
 
 /* using drv_generic_graphic_draw(W) */
 /* using drv_generic_graphic_icon_draw(W) */
+/* using drv_generic_graphic_image_draw(W) */
 /* using drv_generic_graphic_bar_draw(W) */
 
 
@@ -422,6 +427,11 @@ int drv_X11_init(const char *section, const int quiet)
     wc.draw = drv_generic_graphic_icon_draw;
     widget_register(&wc);
 
+    /* register image widget */
+    wc = Widget_Image;
+    /* Fixme: wc.draw = drv_generic_graphic_image_draw; */
+    widget_register(&wc);
+
     /* register bar widget */
     wc = Widget_Bar;
     wc.draw = drv_generic_graphic_bar_draw;
diff --git a/widget_image.c b/widget_image.c
new file mode 100644
index 0000000..4b5c898
--- /dev/null
+++ b/widget_image.c
@@ -0,0 +1,174 @@
+/* $Id: widget_image.c,v 1.1 2006/01/22 09:16:11 reinelt Exp $
+ *
+ * image widget handling
+ *
+ * Copyright (C) 2006 Michael Reinelt <reinelt@eunet.at>
+ * Copyright (C) 2006 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * 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, or (at your option)
+ * any later version.
+ *
+ * This program 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_image.c,v $
+ * Revision 1.1  2006/01/22 09:16:11  reinelt
+ * Image Widget framework added
+ *
+ */
+
+/* 
+ * exported functions:
+ *
+ * WIDGET_CLASS Widget_Image
+ *   the image widget
+ *
+ */
+
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+
+#include "debug.h"
+#include "cfg.h"
+#include "qprintf.h"
+#include "evaluator.h"
+#include "timer.h"
+#include "widget.h"
+#include "widget_image.h"
+
+#ifdef WITH_DMALLOC
+#include <dmalloc.h>
+#endif
+
+void widget_image_update(void *Self)
+{
+    WIDGET *W = (WIDGET *) Self;
+    WIDGET_IMAGE *Image = W->data;
+    RESULT result = { 0, 0, 0, NULL };
+
+    /* process the parent only */
+    if (W->parent == NULL) {
+
+	/* evaluate expressions */
+	Image->update = 0;
+	if (Image->update_tree != NULL) {
+	    Eval(Image->update_tree, &result);
+	    Image->update = R2N(&result);
+	    if (Image->update < 0)
+		Image->update = 0;
+	    DelResult(&result);
+	}
+
+	Image->visible = 1;
+	if (Image->visible_tree != NULL) {
+	    Eval(Image->visible_tree, &result);
+	    Image->visible = R2N(&result);
+	    if (Image->visible < 0)
+		Image->visible = 0;
+	    DelResult(&result);
+	}
+    }
+
+    /* finally, draw it! */
+    if (W->class->draw)
+	W->class->draw(W);
+
+    /* add a new one-shot timer */
+    timer_add(widget_image_update, Self, Image->update, 1);
+
+}
+
+
+
+int widget_image_init(WIDGET * Self)
+{
+    char *section;
+    WIDGET_IMAGE *Image;
+
+    /* re-use the parent if one exists */
+    if (Self->parent == NULL) {
+
+	/* prepare config section */
+	/* strlen("Widget:")=7 */
+	section = malloc(strlen(Self->name) + 8);
+	strcpy(section, "Widget:");
+	strcat(section, Self->name);
+
+	Image = malloc(sizeof(WIDGET_IMAGE));
+	memset(Image, 0, sizeof(WIDGET_IMAGE));
+
+	/* get raw expressions (we evaluate them ourselves) */
+	Image->update_expr = cfg_get_raw(section, "update", NULL);
+	Image->visible_expr = cfg_get_raw(section, "visible", NULL);
+
+	/* compile'em */
+	Compile(Image->update_expr, &Image->update_tree);
+	Compile(Image->visible_expr, &Image->visible_tree);
+
+	/* sanity check */
+	if (Image->update_expr == NULL || *Image->update_expr == '\0') {
+	    error("Image %s has no update, using '100'", Self->name);
+	    Image->update_expr = "100";
+	}
+
+	free(section);
+	Self->data = Image;
+
+    } else {
+
+	/* re-use the parent */
+	Self->data = Self->parent->data;
+
+    }
+
+    /* just do it! */
+    widget_image_update(Self);
+
+    return 0;
+}
+
+
+int widget_image_quit(WIDGET * Self)
+{
+    if (Self) {
+	/* do not deallocate child widget! */
+	if (Self->parent == NULL) {
+	    if (Self->data) {
+		WIDGET_IMAGE *Image = Self->data;
+		DelTree(Image->update_tree);
+		DelTree(Image->visible_tree);
+		if (Image->file)
+		    free(Image->file);
+		free(Self->data);
+		Self->data = NULL;
+	    }
+	}
+    }
+
+    return 0;
+
+}
+
+
+
+WIDGET_CLASS Widget_Image = {
+  name:"image",
+  type:WIDGET_TYPE_VIS,
+  init:widget_image_init,
+  draw:NULL,
+  quit:widget_image_quit,
+};
diff --git a/widget_image.h b/widget_image.h
new file mode 100644
index 0000000..1f89753
--- /dev/null
+++ b/widget_image.h
@@ -0,0 +1,47 @@
+/* $Id: widget_image.h,v 1.1 2006/01/22 09:16:11 reinelt Exp $
+ *
+ * image widget handling
+ *
+ * Copyright (C) 2006 Michael Reinelt <reinelt@eunet.at>
+ * Copyright (C) 2006 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_image.h,v $
+ * Revision 1.1  2006/01/22 09:16:11  reinelt
+ * Image Widget framework added
+ *
+ */
+
+
+#ifndef _WIDGET_IMAGE_H_
+#define _WIDGET_IMAGE_H_
+
+typedef struct WIDGET_IMAGE {
+    char *update_expr;		/* expression for update interval */
+    void *update_tree;		/* pre-compiled expression for update interval */
+    int update;			/* update interval (msec) */
+    char *visible_expr;		/* expression for visibility */
+    void *visible_tree;		/* pre-compiled expression for visibility */
+    int visible;		/* icon visible? */
+    char *file;	                /* file containing the image */
+} WIDGET_IMAGE;
+
+extern WIDGET_CLASS Widget_Image;
+
+#endif