1 files changed, 112 insertions, 0 deletions
diff --git a/src/gui/window_events.cpp b/src/gui/window_events.cpp
new file mode 100644
index 0000000..635d86e
--- /dev/null
+++ b/src/gui/window_events.cpp
@@ -0,0 +1,112 @@
+////////////////////////////////////////////////////////////////////////////////
+// Copyright (C) 2018 Leo Tenenbaum
+// This file is part of GraphColoring.
+//
+// GraphColoring 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 3 of the License, or
+// (at your option) any later version.
+//
+// GraphColoring 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 GraphColoring.  If not, see <https://www.gnu.org/licenses/>.
+////////////////////////////////////////////////////////////////////////////////
+
+#include <iostream>
+#include "utils/errors.hpp"
+#include "window.hpp"
+#include "window_events_keyboard.hpp"
+#include "window_events_mouse.hpp"
+
+namespace gui
+{
+
+template<typename F>
+int Window::AddToCallbackMap(std::map<guint,std::vector<F>>& callback_map,
+    	guint id, F callback)
+{
+	if (callback_map.count(id))
+	{
+		// There are already callbacks for this key.
+		callback_map[id].push_back(callback);
+	}
+	else
+	{
+		std::vector<F> callbacks = {callback};
+		callback_map[id] = callbacks;
+	}
+	return callback_map[id].size()-1;
+}
+
+template<typename F>
+std::vector<F> Window::CheckCallbackMap(
+	std::map<guint,std::vector<F>>& callback_map, guint id)
+{
+	// mouse_x and mouse_y will be passed to the function if it is a
+	// mouse_callback_t. Otherwise, they will be set to -1, and will
+	// not be passed.
+	if (callback_map.count(id))
+	{
+		// There are callbacks for this key
+		return callback_map[id];
+	}
+	else
+	{
+		return std::vector<F>();
+	}
+}
+
+template<typename F>
+void Window::RemoveFromCallbackList(
+	std::vector<F>& callback_list, int id)
+{
+	if (id < 0 || id >= (int)callback_list.size())
+		utils::errors::Die("Invalid callback ID.");
+	callback_list[id] = nullptr;
+}
+
+template int Window::AddToCallbackMap<Window::mouse_callback_t>(
+		mouse_callback_map_t&, guint, mouse_callback_t);
+template int Window::AddToCallbackMap<Window::callback_t>(
+		callback_map_t&, guint, callback_t);
+
+template std::vector<Window::mouse_callback_t>
+	Window::CheckCallbackMap<Window::mouse_callback_t>(
+	mouse_callback_map_t&, guint);
+template std::vector<Window::callback_t>
+	Window::CheckCallbackMap<Window::callback_t>(callback_map_t&, guint);
+
+
+template void Window::RemoveFromCallbackList<Window::mouse_callback_t>(
+	std::vector<mouse_callback_t>&, int);
+template void Window::RemoveFromCallbackList<Window::callback_t>(
+	std::vector<callback_t>&, int);
+template void Window::RemoveFromCallbackList<Window::scroll_callback_t>(
+	std::vector<scroll_callback_t>&, int);
+
+void Window::InitializeEvents()
+{
+	gtk_widget_set_events(window, GDK_POINTER_MOTION_MASK | GDK_SCROLL_MASK
+			| GDK_BUTTON1_MASK | GDK_BUTTON2_MASK | GDK_BUTTON3_MASK
+			| GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_PRESS_MASK
+			| GDK_BUTTON_RELEASE_MASK);
+
+    g_signal_connect(G_OBJECT(window), "key-press-event",
+        G_CALLBACK(GtkKeydownCallback), this);
+    g_signal_connect(G_OBJECT(window), "key-release-event",
+        G_CALLBACK(GtkKeyupCallback), this);
+    g_signal_connect(G_OBJECT(window), "button-press-event",
+    	G_CALLBACK(GtkMousedownCallback), this);
+    g_signal_connect(G_OBJECT(window), "button-release-event",
+    	G_CALLBACK(GtkMouseupCallback), this);
+    g_signal_connect(G_OBJECT(window), "motion-notify-event",
+    	G_CALLBACK(GtkMousemotionCallback), this);
+    g_signal_connect(G_OBJECT(window), "scroll-event",
+    	G_CALLBACK(GtkScrollCallback), this);
+}
+
+} // namespace gui