2015-04-01 12:43:50 +00:00
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/*
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2017-01-11 18:27:01 +00:00
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* Copyright (c) 2015-2017 Carsten Sonne Larsen <cs@innolan.dk>
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2015-04-01 12:43:50 +00:00
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifdef GTK
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#include <gtk/gtk.h>
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#include "system/graph_gtk.h"
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GtkGraphWindow::GtkGraphWindow(UserFunction* function)
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{
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}
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GtkGraphWindow::~GtkGraphWindow()
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{
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}
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/* Backing pixmap for drawing area */
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static GdkPixmap *pixmap = NULL;
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/* Create a new backing pixmap of the appropriate size */
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static gboolean configure_event( GtkWidget *widget,
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GdkEventConfigure *event )
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{
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if (pixmap)
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g_object_unref (pixmap);
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pixmap = gdk_pixmap_new (widget->window,
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widget->allocation.width,
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widget->allocation.height,
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-1);
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gdk_draw_rectangle (pixmap,
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widget->style->white_gc,
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TRUE,
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0, 0,
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widget->allocation.width,
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widget->allocation.height);
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return TRUE;
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}
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/* Redraw the screen from the backing pixmap */
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static gboolean expose_event( GtkWidget *widget,
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GdkEventExpose *event )
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{
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gdk_draw_drawable (widget->window,
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widget->style->fg_gc[gtk_widget_get_state (widget)],
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pixmap,
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event->area.x, event->area.y,
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event->area.x, event->area.y,
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event->area.width, event->area.height);
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return FALSE;
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}
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/* Draw a rectangle on the screen */
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static void draw_brush( GtkWidget *widget,
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gdouble x,
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gdouble y)
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{
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GdkRectangle update_rect;
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update_rect.x = x - 5;
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update_rect.y = y - 5;
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update_rect.width = 10;
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update_rect.height = 10;
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gdk_draw_rectangle (pixmap,
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widget->style->black_gc,
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TRUE,
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update_rect.x, update_rect.y,
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update_rect.width, update_rect.height);
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gtk_widget_queue_draw_area (widget,
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update_rect.x, update_rect.y,
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update_rect.width, update_rect.height);
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}
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static gboolean button_press_event( GtkWidget *widget,
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GdkEventButton *event )
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{
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if (event->button == 1 && pixmap != NULL)
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draw_brush (widget, event->x, event->y);
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return TRUE;
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}
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/*
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static gboolean motion_notify_event( GtkWidget *widget,
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GdkEventMotion *event )
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{
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int x, y;
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GdkModifierType state;
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if (event->is_hint)
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gdk_window_get_pointer (event->window, &x, &y, &state);
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else
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{
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x = event->x;
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y = event->y;
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state = event->state;
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}
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if (state & GDK_BUTTON1_MASK && pixmap != NULL)
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draw_brush (widget, x, y);
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return TRUE;
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}
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*/
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//void quit ()
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//{
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// exit (0);
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//}
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void GtkGraphWindow::DrawGraph()
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{
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GtkWidget *window;
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GtkWidget *drawing_area;
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GtkWidget *vbox;
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GtkWidget *button;
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gtk_init (NULL, NULL);
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_widget_set_name (window, "Test Input");
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vbox = gtk_vbox_new (FALSE, 0);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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gtk_widget_show (vbox);
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g_signal_connect (window, "destroy",
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G_CALLBACK (gtk_main_quit), NULL);
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/* Create the drawing area */
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drawing_area = gtk_drawing_area_new ();
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gtk_widget_set_size_request (GTK_WIDGET (drawing_area), 200, 200);
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gtk_box_pack_start (GTK_BOX (vbox), drawing_area, TRUE, TRUE, 0);
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gtk_widget_show (drawing_area);
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/* Signals used to handle backing pixmap */
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//g_signal_connect (drawing_area, "expose_event",
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// G_CALLBACK (expose_event), NULL);
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//g_signal_connect (drawing_area, "configure_event",
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// G_CALLBACK (configure_event), NULL);
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/* Event signals */
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//g_signal_connect (drawing_area, "motion_notify_event",
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// G_CALLBACK (motion_notify_event), NULL);
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//g_signal_connect (drawing_area, "button_press_event",
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// G_CALLBACK (button_press_event), NULL);
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gtk_widget_set_events (drawing_area, GDK_EXPOSURE_MASK
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| GDK_LEAVE_NOTIFY_MASK
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| GDK_BUTTON_PRESS_MASK
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| GDK_POINTER_MOTION_MASK
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| GDK_POINTER_MOTION_HINT_MASK);
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/* The following call enables tracking and processing of extension
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events for the drawing area */
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gtk_widget_set_extension_events (drawing_area, GDK_EXTENSION_EVENTS_CURSOR);
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/* .. And some buttons */
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button = gtk_button_new_with_label ("Input Dialog");
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
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//g_signal_connect (button, "clicked",
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// G_CALLBACK (create_input_dialog), NULL);
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gtk_widget_show (button);
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button = gtk_button_new_with_label ("Quit");
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gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
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g_signal_connect_swapped (button, "clicked",
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G_CALLBACK (gtk_widget_destroy),
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window);
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gtk_widget_show (button);
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gtk_widget_show (window);
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gtk_main ();
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}
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#endif
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