New file that presents a quick view of the events in a particular day when

1998-09-28  Federico Mena Quintero  <federico@nuclecu.unam.mx>

	* quick-view.[ch]: New file that presents a quick view of the
	events in a particular day when the mouse is clicked on the year
	view.  Work in progress.

	* year-view.c (do_quick_view_popup): New function that creates a
	quick view for the events in a day.

	* Makefile.am (gnomecal_SOURCES): Added quick-view.[ch] to the
	list of sources.

svn path=/trunk/; revision=413

1 files changed, 217 insertions, 0 deletions

diff --git a/calendar/quick-view.c b/calendar/quick-view.c
new file mode 100644
index 0000000000..cbb5cfb5c0
--- /dev/null
+++ b/calendar/quick-view.c
@@ -0,0 +1,217 @@
+/* Quick view widget for Gnomecal
+ *
+ * Copyright (C) 1998 The Free Software Foundation
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx
+ */
+
+#include <config.h>
+#include "quick-view.h"
+#include "main.h"
+
+
+static void quick_view_class_init (QuickViewClass *class);
+static void quick_view_init       (QuickView      *qv);
+
+
+GtkType
+quick_view_get_type (void)
+{
+	static GtkType quick_view_type = 0;
+
+	if (!quick_view_type) {
+		GtkTypeInfo quick_view_info = {
+			"QuickView",
+			sizeof (QuickView),
+			sizeof (QuickViewClass),
+			(GtkClassInitFunc) quick_view_class_init,
+			(GtkObjectInitFunc) quick_view_init,
+			NULL, /* reserved_1 */
+			NULL, /* reserved_2 */
+			(GtkClassInitFunc) NULL
+		};
+
+		quick_view_type = gtk_type_unique (gtk_window_get_type (), &quick_view_info);
+	}
+
+	return quick_view_type;
+}
+
+static void
+quick_view_class_init (QuickViewClass *class)
+{
+}
+
+static void
+quick_view_init (QuickView *qv)
+{
+	GTK_WINDOW (qv)->type = GTK_WINDOW_POPUP;
+	gtk_window_position (GTK_WINDOW (qv), GTK_WIN_POS_MOUSE);
+}
+
+/* Handles button release events from the canvas in the quick view.  When a button release is
+ * received, it pops down the quick view and calls gtk_main_quit().
+ */
+static gint
+button_release (GtkWidget *widget, GdkEventButton *event, gpointer data)
+{
+	QuickView *qv;
+
+	qv = data;
+
+	if (event->button != qv->button)
+		return FALSE;
+
+	gdk_pointer_ungrab (event->time);
+	gtk_grab_remove (GTK_WIDGET (qv));
+	gtk_widget_hide (GTK_WIDGET (qv));
+
+	gtk_main_quit (); /* End modality */
+	return TRUE;
+}
+
+
+/* Creates the items corresponding to a single calendar object.  Takes in the y position of the
+ * items to create and returns the y position of the next item to create.
+ */
+double
+create_items_for_event (QuickView *qv, CalendarObject *co, double y)
+{
+	GnomeCanvas *canvas;
+	char start[100], end[100];
+	struct tm start_tm, end_tm;
+	char *str;
+
+	/* FIXME: make this nice */
+
+	canvas = GNOME_CANVAS (qv->canvas);
+
+	start_tm = *localtime (&co->ev_start);
+	end_tm = *localtime (&co->ev_end);
+
+	if (am_pm_flag) {
+		strftime (start, sizeof (start), "%I:%M%p", &start_tm);
+		strftime (end, sizeof (end), "%I:%M%p", &end_tm);
+	} else {
+		strftime (start, sizeof (start), "%H:%M", &start_tm);
+		strftime (end, sizeof (end), "%H:%M", &end_tm);
+	}
+
+	str = g_copy_strings (start, " - ", end, " ", co->ico->summary, NULL);
+
+	gnome_canvas_item_new (gnome_canvas_root (canvas),
+			       gnome_canvas_text_get_type (),
+			       "x", 0.0,
+			       "y", y,
+			       "anchor", GTK_ANCHOR_NW,
+			       "text", str,
+			       NULL);
+
+	g_free (str);
+
+	return (y + 16); /* FIXME */
+}
+
+/* Creates the canvas items corresponding to the events in the list */
+static void
+setup_event_list (QuickView *qv, GList *event_list)
+{
+	CalendarObject *co;
+	double y;
+
+	/* If there are no events, then just put a simple label */
+
+	if (!event_list) {
+		gnome_canvas_item_new (gnome_canvas_root (GNOME_CANVAS (qv->canvas)),
+				       gnome_canvas_text_get_type (),
+				       "x", 0.0,
+				       "y", 0.0,
+				       "anchor", GTK_ANCHOR_NW,
+				       "text", _("No appointments scheduled for this day"),
+				       NULL);
+		return;
+	}
+
+	/* Create the items for all the events in the list */
+
+	y = 0.0;
+
+	for (; event_list; event_list = event_list->next) {
+		co = event_list->data;
+		y = create_items_for_event (qv, co, y);
+	}
+
+	/* Set the scrolling region to fit all the items */
+
+	gnome_canvas_set_scroll_region (GNOME_CANVAS (qv->canvas),
+					0.0, 0.0,
+					300.0, y); /* FIXME: figure out reasonable sizes */
+
+	gnome_canvas_set_size (GNOME_CANVAS (qv->canvas), 300, y);
+}
+
+GtkWidget *
+quick_view_new (GnomeCalendar *calendar, char *title, GList *event_list)
+{
+	QuickView *qv;
+	GtkWidget *w;
+
+	g_return_val_if_fail (calendar != NULL, NULL);
+	g_return_val_if_fail (GNOME_IS_CALENDAR (calendar), NULL);
+
+	qv = gtk_type_new (quick_view_get_type ());
+	qv->calendar = calendar;
+
+	/* Create base widgets for the popup window */
+
+	w = gtk_frame_new (title);
+	gtk_container_add (GTK_CONTAINER (qv), w);
+	gtk_widget_show (w);
+
+	gtk_widget_push_visual (gdk_imlib_get_visual ());
+	gtk_widget_push_colormap (gdk_imlib_get_colormap ());
+
+	qv->canvas = gnome_canvas_new ();
+
+	gtk_widget_pop_colormap ();
+	gtk_widget_pop_visual ();
+
+	gtk_signal_connect (GTK_OBJECT (qv->canvas), "button_release_event",
+			    (GtkSignalFunc) button_release,
+			    qv);
+
+	gtk_container_add (GTK_CONTAINER (w), qv->canvas);
+	gtk_widget_show (qv->canvas);
+
+	/* Set up the event list */
+
+	setup_event_list (qv, event_list);
+
+	return GTK_WIDGET (qv);
+}
+
+void
+quick_view_do_popup (QuickView *qv, GdkEventButton *event)
+{
+	g_return_if_fail (qv != NULL);
+	g_return_if_fail (IS_QUICK_VIEW (qv));
+	g_return_if_fail (event != NULL);
+
+	/* Pop up the window */
+
+	gtk_widget_show (GTK_WIDGET (qv));
+	gtk_grab_add (GTK_WIDGET (qv));
+
+	gdk_pointer_grab (GTK_WIDGET (qv)->window,
+			  TRUE,
+			  GDK_BUTTON_RELEASE_MASK,
+			  NULL,
+			  NULL,
+			  event->time);
+
+	qv->button = event->button;
+
+	gtk_main (); /* Begin modality */
+
+	/* The button release event handler will call gtk_main_quit() */
+}