add html widget (url_requested_cb): add function to load images from file

2001-10-18  Larry Ewing  <lewing@ximian.com>

	* gui/alarm-notify/alarm-notify-dialog.c: add html widget
	(url_requested_cb): add function to load images from file as they
	are requested.
	(write_html_heading): convert to using html.
	(alarm_notify_dialog): convert to use html display.
	(make_html_display): this is the function the custom widget in the
	galde file uses to create the html widget.

	* gui/alarm-notify/alarm-notify.glade: add placeholder for the
	custom html widget.

	* gui/alarm-notify/Makefile.am: add flags for gtkhtml and gal.

svn path=/trunk/; revision=13766

3 files changed, 154 insertions, 57 deletions

diff --git a/calendar/gui/alarm-notify/Makefile.am b/calendar/gui/alarm-notify/Makefile.am
index 8cf9b749fc..26965fffea 100644
--- a/calendar/gui/alarm-notify/Makefile.am
+++ b/calendar/gui/alarm-notify/Makefile.am
@@ -28,13 +28,18 @@ INCLUDES = 						\
 	-I$(top_builddir)/libical/src/libical		\
 	-I$(top_srcdir)/widgets				\
 	-I$(includedir)					\
+	$(GAL_CFLAGS)					\
 	$(BONOBO_VFS_GNOME_CFLAGS)			\
 	$(BONOBO_CONF_CFLAGS)				\
+	$(BONOBO_HTML_GNOME_LIBS)			\
 	$(EXTRA_GNOME_CFLAGS)				\
 	-DEVOLUTION_DATADIR=\""$(datadir)"\"		\
 	-DEVOLUTION_GLADEDIR=\""$(gladedir)"\"		\
+	-DEVOLUTION_ICONSDIR=\""$(iconsdir)"\"		\
 	-DEVOLUTION_LOCALEDIR=\""$(localedir)"\"
 
+iconsdir = $(datadir)/images/evolution
+
 gladedir   = $(datadir)/evolution/glade
 
 glade_DATA =		\
@@ -58,9 +63,12 @@ evolution_alarm_notify_LDADD =					\
 	$(top_builddir)/calendar/cal-util/libcal-util.la	\
 	$(top_builddir)/libical/src/libical/libical.la		\
 	$(top_builddir)/libwombat/libwombat.la			\
+	$(top_builddir)/e-util/libeutil.la						\
 	$(BONOBO_CONF_LIBS)					\
 	$(BONOBO_VFS_GNOME_LIBS)				\
+	$(BONOBO_HTML_GNOME_LIBS)				\
 	$(EXTRA_GNOME_LIBS)					\
+	$(GAL_LIBS)						\
 	$(INTLLIBS)
 
 oafdir = $(datadir)/oaf
diff --git a/calendar/gui/alarm-notify/alarm-notify-dialog.c b/calendar/gui/alarm-notify/alarm-notify-dialog.c
index 665419241f..c6644264c6 100644
--- a/calendar/gui/alarm-notify/alarm-notify-dialog.c
+++ b/calendar/gui/alarm-notify/alarm-notify-dialog.c
@@ -1,7 +1,7 @@
 /* Evolution calendar - alarm notification dialog
  *
  * Copyright (C) 2000 Ximian, Inc.
- * Copyright (C) 2000 Ximian, Inc.
+ * Copyright (C) 2001 Ximian, Inc.
  *
  * Author: Federico Mena-Quintero <federico@ximian.com>
  *
@@ -21,6 +21,8 @@
  */
 
 #include <config.h>
+#include <stdio.h>
+#include <string.h>
 #include <gtk/gtklabel.h>
 #include <gtk/gtkspinbutton.h>
 #include <gtk/gtksignal.h>
@@ -28,11 +30,18 @@
 #include <libgnome/gnome-defs.h>
 #include <libgnome/gnome-i18n.h>
 #include <libgnomeui/gnome-winhints.h>
+#include <libgnomeui/gnome-window-icon.h>
 #include <glade/glade.h>
+#include <e-util/e-time-utils.h>
+#include <e-util/e-unicode-i18n.h>
 #include <gal/widgets/e-unicode.h>
+#include <gal/widgets/e-scroll-frame.h>
+#include <gtkhtml/gtkhtml.h>
+#include <gtkhtml/gtkhtml-stream.h>
 #include "alarm-notify-dialog.h"
 
 
+GtkWidget *make_html_display (gchar *widget_name, char *s1, char *s2, int scroll, int shadow);
 
 /* The useful contents of the alarm notify dialog */
 typedef struct {
@@ -45,6 +54,7 @@ typedef struct {
 	GtkWidget *heading;
 	GtkWidget *message;
 	GtkWidget *snooze_time;
+	GtkWidget *html;
 
 	AlarmNotifyFunc func;
 	gpointer func_data;
@@ -122,18 +132,108 @@ edit_clicked_cb (GtkWidget *widget, gpointer data)
 	gtk_widget_destroy (an->dialog);
 }
 
+static void
+url_requested_cb (GtkHTML *html, const char *url, GtkHTMLStream *stream, gpointer data)
+{
+
+	if (!strncmp ("file:///", url, strlen ("file:///"))) {	
+		FILE *fp;
+		const char *filename = url + strlen ("file://");
+		char buf[4096];
+		size_t len;
+
+		fp = fopen (filename, "r");
+
+		if (fp == NULL) {
+			g_warning ("Error opening image: %s\n", url);
+			gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
+			return;
+		}
+		
+		while ((len = fread (buf, 1, sizeof(buf), fp)) > 0)
+			gtk_html_stream_write (stream, buf, len);
+		
+		if (feof (fp)) {
+			fclose (fp);
+			gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
+			return;
+		} 
+		
+		fclose (fp);
+	}
+
+	g_warning ("Error loading image");
+	gtk_html_stream_close (stream, GTK_HTML_STREAM_ERROR);
+	return;
+}
+
+GtkWidget *
+make_html_display (gchar *widget_name, char *s1, char *s2, int scroll, int shadow)
+{
+	GtkWidget *html, *frame;
+
+	gtk_widget_push_visual(gdk_rgb_get_visual());
+	gtk_widget_push_colormap(gdk_rgb_get_cmap());
+	
+	html = gtk_html_new();
+
+	gtk_html_set_default_content_type (GTK_HTML (html),
+					   "charset=utf-8");
+	gtk_html_load_empty (GTK_HTML (html));
+
+	gtk_signal_connect (GTK_OBJECT (html), "url_requested",
+			    GTK_SIGNAL_FUNC (url_requested_cb),
+			    NULL);
+
+	gtk_widget_pop_colormap();  
+	gtk_widget_pop_visual();
+
+	frame = e_scroll_frame_new(NULL, NULL);
+    
+	e_scroll_frame_set_policy(E_SCROLL_FRAME(frame),
+				  GTK_POLICY_AUTOMATIC,
+				  GTK_POLICY_AUTOMATIC);
+	
+	
+	e_scroll_frame_set_shadow_type (E_SCROLL_FRAME (frame),
+					GTK_SHADOW_IN);
+
+	gtk_widget_set_usize (frame, 300, 200);
+
+	gtk_container_add(GTK_CONTAINER (frame), html);
+	
+	gtk_widget_show_all(frame);
+	
+	gtk_object_set_user_data(GTK_OBJECT (frame), html);
+	return frame;        
+}
+
+static void
+write_times (GtkHTMLStream *stream, char *start, char *end)
+{
+	if (start)
+		gtk_html_stream_printf (stream, "<b>%s</b> %s<br>", U_("Starting:"), start);
+	if (end)
+		gtk_html_stream_printf (stream, "<b>%s</b> %s<br>", U_("Ending:"), end);
+
+}
+
 /* Creates a heading for the alarm notification dialog */
-static char *
-make_heading (CalComponentVType vtype, time_t occur_start, time_t occur_end)
+static void
+write_html_heading (GtkHTMLStream *stream, const char *message, CalComponentVType vtype, time_t occur_start, time_t occur_end)
 {
 	char *buf;
 	char s[128], e[128];
+	char *start = NULL, *end = NULL;
+	char *bg_path = "file://" EVOLUTION_ICONSDIR "/bcg.png";
+	char *image_path = "file://" EVOLUTION_ICONSDIR "/alarm.png";
 
 	if (occur_start != -1) {
 		struct tm tm;
 
 		tm = *localtime (&occur_start);
 		strftime (s, sizeof (s), "%A %b %d %Y %H:%M", &tm);
+		start = e_utf8_from_locale_string (s);
 	}
 
 	if (occur_end != -1) {
@@ -141,51 +241,33 @@ make_heading (CalComponentVType vtype, time_t occur_start, time_t occur_end)
 
 		tm = *localtime (&occur_end);
 		strftime (e, sizeof (e), "%A %b %d %Y %H:%M", &tm);
+		end = e_utf8_from_locale_string (e);
 	}
 
 	/* I love combinatorial explosion */
+	gtk_html_stream_printf (stream, 
+				"<HTML><BODY background=\"%s\">"
+				"<TABLE WIDTH=\"100%%\">"
+				"<TR>"
+				"<TD><IMG SRC=\"%s\" ALIGN=\"top\" BORDER=\"0\"></TD>"
+				"<TD><H1>%s</H1></TD>"
+				"</TR>"
+				"</TABLE>",
+				bg_path,
+				image_path,
+				U_("Evolution Alarm"));
+
+	gtk_html_stream_printf (stream, "<br><br><font size=\"+2\">%s</font><br><br>", message);
 
 	switch (vtype) {
 	case CAL_COMPONENT_EVENT:
-		if (occur_start != -1) {
-			if (occur_end != -1)
-				buf = g_strdup_printf (_("Notification about your appointment "
-							 "starting on %s and ending on %s"),
-						       s, e);
-			else
-				buf = g_strdup_printf (_("Notification about your appointment "
-							"starting on %s"),
-						      s);
-		} else {
-			if (occur_end != -1)
-				buf = g_strdup_printf (_("Notification about your appointment "
-							 "ending on %s"),
-						       e);
-			else
-				buf = g_strdup_printf (_("Notification about your appointment"));
-		}
+		/* gtk_html_stream_printf (stream, "%s<br>", U_("Notification about your appointment")); */
+		write_times (stream, start, end);
 		break;
-
 	case CAL_COMPONENT_TODO:
-		if (occur_start != -1) {
-			if (occur_end != -1)
-				buf = g_strdup_printf (_("Notification about your task "
-							 "starting on %s and ending on %s"),
-						       s, e);
-			else
-				buf = g_strdup_printf (_("Notification about your task "
-							"starting on %s"),
-						      s);
-		} else {
-			if (occur_end != -1)
-				buf = g_strdup_printf (_("Notification about your task "
-							 "ending on %s"),
-						       e);
-			else
-				buf = g_strdup_printf (_("Notification about your task"));
-		}
+		/* gtk_html_stream_printf (stream, "%s<br>", U_("Notification about your task")); */
+		write_times (stream, start, end);
 		break;
-
 	default:
 		/* Only VEVENTs and VTODOs can have alarms */
 		g_assert_not_reached ();
@@ -193,7 +275,9 @@ make_heading (CalComponentVType vtype, time_t occur_start, time_t occur_end)
 		break;
 	}
 
-	return buf;
+	g_free (start);
+	g_free (end);
+	return;
 }
 
 /**
@@ -218,9 +302,8 @@ alarm_notify_dialog (time_t trigger, time_t occur_start, time_t occur_end,
 {
 	AlarmNotify *an;
 	char buf[256];
-	char *heading;
-	char *msg;
 	struct tm tm_trigger;
+	GtkHTMLStream *stream;
 
 	g_return_val_if_fail (trigger != -1, FALSE);
 
@@ -248,6 +331,7 @@ alarm_notify_dialog (time_t trigger, time_t occur_start, time_t occur_end,
 	an->heading = glade_xml_get_widget (an->xml, "heading");
 	an->message = glade_xml_get_widget (an->xml, "message");
 	an->snooze_time = glade_xml_get_widget (an->xml, "snooze-time");
+	an->html = gtk_object_get_user_data (GTK_OBJECT (glade_xml_get_widget (an->xml, "frame")));
 
 	if (!(an->dialog && an->close && an->snooze && an->edit && an->heading && an->message
 	      && an->snooze_time)) {
@@ -262,25 +346,14 @@ alarm_notify_dialog (time_t trigger, time_t occur_start, time_t occur_end,
 			    GTK_SIGNAL_FUNC (dialog_destroy_cb), an);
 
 	/* Title */
-
 	tm_trigger = *localtime (&trigger);
 	strftime (buf, sizeof (buf), _("Alarm on %A %b %d %Y %H:%M"), &tm_trigger);
 	gtk_window_set_title (GTK_WINDOW (an->dialog), buf);
 
-	/* Heading */
-
-	heading = make_heading (vtype, occur_start, occur_end);
-	gtk_label_set_text (GTK_LABEL (an->heading), heading);
-	g_free (heading);
-
-	/* Message */
-
-	msg = e_utf8_to_gtk_string (an->message, message);
-	if (msg) {
-		gtk_label_set_text (GTK_LABEL (an->message), msg);
-		g_free (msg);
-	} else
-		g_message ("Could not convert the alarm message from UTF8");
+	/* html heading */
+	stream = gtk_html_begin (GTK_HTML (an->html));
+	write_html_heading (stream, message, vtype, occur_start, occur_end);
+	gtk_html_stream_close (stream, GTK_HTML_STREAM_OK);
 
 	/* Connect actions */
 
@@ -306,7 +379,9 @@ alarm_notify_dialog (time_t trigger, time_t occur_start, time_t occur_end,
 		gtk_widget_realize (an->dialog);
 
 	gnome_win_hints_set_state (an->dialog, WIN_STATE_STICKY);
+	gnome_window_icon_set_from_file (GTK_WINDOW (an->dialog), EVOLUTION_ICONSDIR "/alarm.png");
 
 	gtk_widget_show (an->dialog);
 	return TRUE;
 }
+
diff --git a/calendar/gui/alarm-notify/alarm-notify.glade b/calendar/gui/alarm-notify/alarm-notify.glade
index 19af18f010..e71828ca53 100644
--- a/calendar/gui/alarm-notify/alarm-notify.glade
+++ b/calendar/gui/alarm-notify/alarm-notify.glade
@@ -85,6 +85,20 @@
 	    <fill>False</fill>
 	  </child>
 	</widget>
+
+	<widget>
+	  <class>Custom</class>
+	  <name>frame</name>
+	  <creation_function>make_html_display</creation_function>
+	  <int1>0</int1>
+	  <int2>0</int2>
+	  <last_modification_time>Thu, 11 Oct 2001 08:19:04 GMT</last_modification_time>
+	  <child>
+	    <padding>0</padding>
+	    <expand>True</expand>
+	    <fill>True</fill>
+	  </child>
+	</widget>
       </widget>
 
       <widget>