/************************************************************************* * The following code implements a text view in a custom GtkCellRenderer. * * Copyright (C) 2020 Robert Fewell * * 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 of the * License, 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. *************************************************************************/ #include #include #include #include #include #include "gnc-cell-view.h" static void gnc_cell_view_editable_init (GtkCellEditableIface *iface); static void gnc_cell_view_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec); static void gnc_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec); enum { PROP_0, PROP_EDITING_CANCELED, }; G_DEFINE_TYPE_WITH_CODE (GncCellView, gnc_cell_view, GTK_TYPE_EVENT_BOX, G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_EDITABLE, gnc_cell_view_editable_init)) static void gnc_cell_view_dispose (GObject *gobject) { if (GNC_CELL_VIEW(gobject)->tooltip_id > 0) { g_source_remove (GNC_CELL_VIEW(gobject)->tooltip_id); GNC_CELL_VIEW(gobject)->tooltip_id = 0; } G_OBJECT_CLASS (gnc_cell_view_parent_class)->dispose (gobject); } static void gnc_cell_view_init (GncCellView *cv) { cv->editing_canceled = FALSE; cv->text_view = g_object_new (GTK_TYPE_TEXT_VIEW, "accepts-tab", FALSE, NULL); cv->buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW(cv->text_view)); gtk_text_view_set_left_margin (GTK_TEXT_VIEW(cv->text_view), 2); gtk_text_view_set_right_margin (GTK_TEXT_VIEW(cv->text_view), 2); gtk_widget_set_tooltip_text (GTK_WIDGET(cv->text_view), _("Use Shift combined with Return or Keypad Enter to finish editing")); gtk_container_add (GTK_CONTAINER(cv), GTK_WIDGET(cv->text_view)); gtk_widget_show (cv->text_view); cv->focus_out_id = 0; cv->populate_popup_id = 0; cv->tooltip_id = 0; gtk_widget_set_can_focus (GTK_WIDGET(cv->text_view), TRUE); gtk_widget_add_events (GTK_WIDGET(cv), GDK_KEY_PRESS_MASK); gtk_widget_add_events (GTK_WIDGET(cv), GDK_KEY_RELEASE_MASK); } static void gnc_cell_view_class_init (GncCellViewClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS(klass); gobject_class->dispose = gnc_cell_view_dispose; gobject_class->set_property = gnc_cell_view_set_property; gobject_class->get_property = gnc_cell_view_get_property; g_object_class_override_property (gobject_class, PROP_EDITING_CANCELED, "editing-canceled"); } static void gnc_cell_view_set_property (GObject *object, guint param_id, const GValue *value, GParamSpec *pspec) { GncCellView *cv = GNC_CELL_VIEW(object); switch (param_id) { case PROP_EDITING_CANCELED: cv->editing_canceled = g_value_get_boolean (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec); break; } } static void gnc_cell_view_get_property (GObject *object, guint param_id, GValue *value, GParamSpec *pspec) { GncCellView *cv = GNC_CELL_VIEW(object); switch (param_id) { case PROP_EDITING_CANCELED: g_value_set_boolean (value, cv->editing_canceled); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID(object, param_id, pspec); break; } } static gboolean gtk_cell_editable_key_press_event (GtkTextView *text_view, GdkEventKey *key_event, GncCellView *cv) { if (key_event->keyval == GDK_KEY_Escape) { cv->editing_canceled = TRUE; gtk_cell_editable_editing_done (GTK_CELL_EDITABLE(cv)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE(cv)); return TRUE; } if ((key_event->keyval == GDK_KEY_Return || key_event->keyval == GDK_KEY_KP_Enter) && (key_event->state & GDK_SHIFT_MASK)) { gtk_cell_editable_editing_done (GTK_CELL_EDITABLE(cv)); return TRUE; } return FALSE; } static void gcv_popup_unmap (GtkMenu *menu, GncCellView *cv) { cv->in_popup_menu = FALSE; } static void gcv_populate_popup (GtkTextView *text_view, GtkWidget *popup, GncCellView *cv) { cv->in_popup_menu = TRUE; g_signal_connect (popup, "unmap", G_CALLBACK (gcv_popup_unmap), cv); } static gboolean gcv_focus_out_event (GtkWidget *widget, GdkEvent *event, GncCellView *cv) { if (cv->in_popup_menu) return FALSE; cv->editing_canceled = TRUE; if (cv->focus_out_id > 0) { g_signal_handler_disconnect (cv->text_view, cv->focus_out_id); cv->focus_out_id = 0; } if (cv->populate_popup_id > 0) { g_signal_handler_disconnect (cv->text_view, cv->populate_popup_id); cv->populate_popup_id = 0; } gtk_cell_editable_editing_done (GTK_CELL_EDITABLE(cv)); gtk_cell_editable_remove_widget (GTK_CELL_EDITABLE(cv)); return FALSE; } static gboolean gcv_remove_tooltip (GncCellView *cv) { if (cv->tooltip_id > 0) { gtk_widget_set_tooltip_text (GTK_WIDGET(cv->text_view), NULL); cv->tooltip_id = 0; } return FALSE; } static void gcv_start_editing (GtkCellEditable *cell_editable, GdkEvent *event) { GncCellView *cv = GNC_CELL_VIEW(cell_editable); GtkTextIter siter, eiter; // Remove the text_view tooltip after 5secs to stop it recurring cv->tooltip_id = g_timeout_add (5000, (GSourceFunc) gcv_remove_tooltip, cv); gtk_text_buffer_get_bounds (cv->buffer, &siter, &eiter); gtk_text_buffer_select_range (cv->buffer, &eiter, &siter); gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW(cv->text_view), TRUE); gtk_widget_grab_focus (GTK_WIDGET(cv->text_view)); g_signal_connect (G_OBJECT(cv->text_view), "key_press_event", G_CALLBACK(gtk_cell_editable_key_press_event), cv); cv->focus_out_id = g_signal_connect (G_OBJECT(cv->text_view), "focus-out-event", G_CALLBACK(gcv_focus_out_event), cv); cv->populate_popup_id = g_signal_connect (G_OBJECT(cv->text_view), "populate-popup", G_CALLBACK(gcv_populate_popup), cv); } static void gnc_cell_view_editable_init (GtkCellEditableIface *iface) { iface->start_editing = gcv_start_editing; } void gnc_cell_view_set_text (GncCellView *cv, const gchar *text) { g_return_if_fail (GNC_IS_CELL_VIEW(cv)); gtk_text_buffer_set_text (cv->buffer, text ? text : "", -1); } gchar * gnc_cell_view_get_text (GncCellView *cv) { GtkTextIter siter, eiter; g_return_val_if_fail (GNC_IS_CELL_VIEW(cv), NULL); gtk_text_buffer_get_bounds (cv->buffer, &siter, &eiter); return gtk_text_buffer_get_text (cv->buffer, &siter, &eiter, TRUE); }