318 lines
8.5 KiB
C
318 lines
8.5 KiB
C
/*
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* Copyright (C) 2012 - Juan Ferrer Toribio
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "vn-date-chooser.h"
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#include <db/db.h>
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/**
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* SECTION:vn-date-chooser
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* @Short_description: an embedded popup date selector
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* @Title: VnDateChooser
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* @See_also: #VnField
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* @Image: date-chooser.png
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*
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* An embedded button and text field that pops-up a #GtkCalendar.
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*/
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G_DEFINE_TYPE (VnDateChooser, vn_date_chooser, VN_TYPE_FIELD);
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/**
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* vn_date_chooser_new:
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*
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* Creates a new #VnDateChooser
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*
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* Return value: a #VnDateChooser
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**/
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VnField * vn_date_chooser_new ()
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{
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return VN_FIELD (g_object_new (VN_TYPE_DATE_CHOOSER, NULL));
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Private
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static void vn_date_chooser_hide_popup (VnDateChooser * obj)
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{
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if (obj->device)
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{
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gdk_device_ungrab (obj->device, GDK_CURRENT_TIME);
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gtk_device_grab_remove (obj->popup, obj->device);
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}
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (obj->button), FALSE);
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gtk_widget_hide (obj->popup);
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}
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static void vn_date_chooser_changed (VnDateChooser * obj)
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{
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GDate * date = &obj->date;
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if (g_date_valid (date))
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{
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gchar * str;
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GDateWeekday wday;
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GDateMonth month;
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month = g_date_get_month (date);
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wday = g_date_get_weekday (date);
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str = g_strdup_printf (_("%s, %u %s %u")
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,GVN_ABR_WDAY[wday]
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,g_date_get_day (date)
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,GVN_ABR_MONTH[month]
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,g_date_get_year (date)
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);
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gtk_label_set_text (obj->label, str);
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g_free (str);
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}
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else
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gtk_label_set_text (obj->label, "");
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}
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static void vn_date_chooser_set_value (VnDateChooser * obj, const GValue * value)
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{
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GDate * date = NULL;
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if (G_VALUE_TYPE (value) != G_TYPE_DATE)
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{
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GValue new_value = {0};
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g_value_init (&new_value, G_TYPE_DATE);
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g_value_transform (value, &new_value);
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date = g_value_get_boxed (&new_value);
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}
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else if (!gvn_value_is_null (value))
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date = g_value_get_boxed (value);
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if (date)
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obj->date = *date;
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else
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g_date_clear (&obj->date, 1);
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vn_date_chooser_changed (obj);
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}
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static void vn_date_chooser_on_day_selected (GtkCalendar * calendar, VnDateChooser * obj)
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{
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guint year;
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guint month;
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guint day;
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GDate new_date;
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GValue value = {0};
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gtk_calendar_get_date (calendar, &year, &month, &day);
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month++;
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g_date_clear (&new_date, 1);
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g_date_set_dmy (&new_date, day, month, year);
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if (!g_date_valid (&obj->date) || g_date_compare (&new_date, &obj->date))
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{
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g_date_set_julian (&obj->date, g_date_get_julian (&new_date));
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g_value_init (&value, G_TYPE_DATE);
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g_value_set_boxed (&value, &obj->date);
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}
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else
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{
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g_value_init (&value, GVN_TYPE_NULL);
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g_date_clear (&obj->date, 1);
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}
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VN_FIELD_GET_CLASS (obj)->value_changed (VN_FIELD (obj), &value);
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g_value_unset (&value);
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vn_date_chooser_hide_popup (obj);
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vn_date_chooser_changed (obj);
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}
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static gboolean vn_date_chooser_on_buton_press (GtkWidget * widget,
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GdkEventButton * event, VnDateChooser * obj)
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{
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gint x, y;
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GtkAllocation allocation;
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gdk_window_get_origin (
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gtk_widget_get_window (obj->popup), &x, &y);
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gtk_widget_get_allocation (obj->popup, &allocation);
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if (!( event->x_root >= x && event->x_root <= x + allocation.width
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&& event->y_root >= y && event->y_root <= y + allocation.height))
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{
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vn_date_chooser_hide_popup (obj);
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return TRUE;
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}
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return FALSE;
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}
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static gboolean vn_date_chooser_on_key_press (GtkWidget * widget,
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GdkEventKey * event, VnDateChooser * obj)
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{
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if (event->keyval == GDK_KEY_Escape)
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{
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vn_date_chooser_hide_popup (obj);
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return TRUE;
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}
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return FALSE;
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}
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static void vn_date_chooser_on_toggled (GtkToggleButton * button, VnDateChooser * obj)
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{
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if (gtk_toggle_button_get_active (button))
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{
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gint x, y;
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GdkWindow * window;
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GdkScreen * screen;
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GtkRequisition req;
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GdkRectangle monitor;
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GtkAllocation allocation;
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GtkWidget * widget = GTK_WIDGET (button);
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// Set the date on the calendar
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if (g_date_valid (&obj->date))
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{
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gtk_calendar_select_month (obj->calendar
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,g_date_get_month (&obj->date) - 1
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,g_date_get_year (&obj->date)
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);
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gtk_calendar_select_day (obj->calendar,
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g_date_get_day (&obj->date));
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}
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else
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gtk_calendar_select_day (obj->calendar, 0);
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// Setting the position of the popup
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window = gtk_widget_get_window (widget);
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gtk_widget_get_allocation (widget, &allocation);
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gdk_window_get_origin (window, &x, &y);
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x += allocation.x;
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y += allocation.y;
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screen = gtk_widget_get_screen (widget);
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gdk_screen_get_monitor_geometry (screen,
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gdk_screen_get_monitor_at_point (screen, x, y), &monitor);
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gtk_widget_show (GTK_WIDGET (obj->calendar));
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gtk_widget_get_preferred_size (obj->popup, &req, NULL);
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if (y - monitor.y > monitor.height)
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y = monitor.y + monitor.height - req.height;
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else if ((y - monitor.y) + req.height + allocation.height > monitor.height)
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y -= req.height;
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else
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y += allocation.height;
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if ((x + allocation.width) - monitor.x > monitor.width)
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x = monitor.x + monitor.width - req.width;
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else if ((x - monitor.x) + req.width > monitor.width)
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x -= req.width - allocation.width;
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gtk_window_set_screen (GTK_WINDOW (obj->popup), screen);
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gtk_window_move (GTK_WINDOW (obj->popup), x, y);
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gtk_widget_show_all (obj->popup);
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// Graving the focus on the popup window
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obj->device = gtk_get_current_event_device ();
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if (obj->device && gdk_device_get_source (obj->device) == GDK_SOURCE_KEYBOARD)
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obj->device = gdk_device_get_associated_device (obj->device);
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if (!obj->device)
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{
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GList * devices;
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GdkDisplay * display;
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GdkDeviceManager * device_manager;
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display = gtk_widget_get_display (GTK_WIDGET (obj->popup));
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device_manager = gdk_display_get_device_manager (display);
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devices = gdk_device_manager_list_devices (device_manager,
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GDK_DEVICE_TYPE_MASTER);
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obj->device = devices->data;
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g_list_free (devices);
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}
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// gtk_widget_grab_focus (obj->popup);
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gtk_device_grab_add (obj->popup, obj->device, TRUE);
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gdk_device_grab (obj->device
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,gtk_widget_get_window (obj->popup)
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,GDK_OWNERSHIP_WINDOW, TRUE
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,GDK_BUTTON_PRESS_MASK, NULL
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,GDK_CURRENT_TIME
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);
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}
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else
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vn_date_chooser_hide_popup (obj);
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}
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//+++++++++++++++++++++++++++++++++++++++++++++++++++ Class
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static void vn_date_chooser_init (VnDateChooser * obj)
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{
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GtkWidget * image;
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obj->popup = NULL;
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obj->device = NULL;
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g_date_clear (&obj->date, 1);
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obj->box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 8);
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gtk_container_add (GTK_CONTAINER (obj), GTK_WIDGET (obj->box));
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VN_FIELD (obj)->field = obj->box;
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obj->button = gtk_toggle_button_new ();
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gtk_widget_set_tooltip_text (GTK_WIDGET (obj->button), _("Change date"));
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g_signal_connect (obj->button, "toggled",
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G_CALLBACK (vn_date_chooser_on_toggled), obj);
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gtk_box_pack_start (GTK_BOX (obj->box),
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GTK_WIDGET (obj->button), FALSE, FALSE, 0);
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image = gtk_image_new_from_stock (GTK_STOCK_EDIT, GTK_ICON_SIZE_BUTTON);
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gtk_button_set_image (GTK_BUTTON (obj->button), image);
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obj->label = GTK_LABEL (gtk_label_new (NULL));
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gtk_misc_set_alignment (GTK_MISC (obj->label), 0, 0.5);
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gtk_box_pack_end (GTK_BOX (obj->box),
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GTK_WIDGET (obj->label), TRUE, TRUE, 0);
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obj->popup = gtk_window_new (GTK_WINDOW_POPUP);
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g_object_connect (obj->popup
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,"signal::button-press-event", vn_date_chooser_on_buton_press, obj
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,"signal::key-press-event", vn_date_chooser_on_key_press, obj
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,NULL
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);
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obj->calendar = GTK_CALENDAR (gtk_calendar_new ());
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g_signal_connect (obj->calendar, "day-selected-double-click",
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G_CALLBACK (vn_date_chooser_on_day_selected), obj);
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gtk_container_add (GTK_CONTAINER (obj->popup), GTK_WIDGET (obj->calendar));
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}
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static void vn_date_chooser_finalize (VnDateChooser * obj)
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{
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gtk_widget_destroy (obj->popup);
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G_OBJECT_CLASS (vn_date_chooser_parent_class)->finalize (G_OBJECT (obj));
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}
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static void vn_date_chooser_class_init (VnDateChooserClass * klass)
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{
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G_OBJECT_CLASS (klass)->finalize = (GObjectFinalizeFunc) vn_date_chooser_finalize;
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VN_FIELD_CLASS (klass)->set_value = (VnFieldSetValueFunc) vn_date_chooser_set_value;
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}
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