Initial commit

engines/ultima/nuvie/gui/gui_drag_manager.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "ultima/nuvie/core/nuvie_defs.h"
+#include "ultima/nuvie/gui/gui_drag_area.h"
+#include "ultima/nuvie/gui/gui_drag_manager.h"
+#include "ultima/nuvie/core/game.h"  // -+- Included so we can set WAIT_MODE while dragging.
+#include "ultima/nuvie/core/events.h" // /
+#include "ultima/nuvie/gui/widgets/msg_scroll.h"
+
+namespace Ultima {
+namespace Nuvie {
+
+GUI_DragManager::GUI_DragManager(Screen *s): screen(s), message(0),
+		data(nullptr), drag_source(nullptr), is_out_of_range(false) {
+}
+
+GUI_status GUI_DragManager::start_drag(GUI_DragArea *src, int msg, void *d, unsigned char *icon_buf, uint16 w, uint16 h, uint8 bpp, bool out_of_range) {
+	DEBUG(false, LEVEL_DEBUGGING, "Start Drag\n");
+
+	drag_source = src;
+	message = msg;
+	data = d;
+	is_out_of_range = out_of_range;
+//Game::get_game()->get_event()->set_mode(WAIT_MODE);
+	Game::get_game()->pause_user();
+	return GUI_DRAG_AND_DROP;
+}
+
+void GUI_DragManager::drop(GUI_DragArea *drag_target, int x, int y) {
+	DEBUG(0, LEVEL_DEBUGGING, "Drop\n");
+
+//Game::get_game()->get_event()->endAction(); // WAIT_MODE
+	Game::get_game()->unpause_user();
+	if (is_out_of_range) {
+		MsgScroll *scroll = Game::get_game()->get_scroll();
+		scroll->display_string("Move-");
+		scroll->display_string(Game::get_game()->get_obj_manager()->look_obj((Obj *)data)); // getting obj name
+		scroll->message(".\n\nOut of range!\n\n");
+		drag_source->drag_drop_failed(x, y, message, data);
+	} else if (drag_target->drag_accept_drop(x, y, message, data)) {
+		//inform the source of the success so it can perform operations before the drop takes place.
+		drag_source->drag_drop_success(x, y, message, data);
+		drag_target->drag_perform_drop(x, y, message, data);
+	} else
+		drag_source->drag_drop_failed(x, y, message, data);
+
+
+	drag_source = nullptr;
+
+	return;
+}
+
+void GUI_DragManager::draw(int x, int y) {
+	if (!drag_source)
+		return;
+
+	drag_source->drag_draw(x, y, message, data);
+}
+
+GUI_DragArea *GUI_DragManager::get_source() {
+	return drag_source;
+}
+
+} // End of namespace Nuvie
+} // End of namespace Ultima