diff engine/core/view/renderers/cellselectionrenderer.cpp @ 0:4a0efb7baf70

* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
parents
children 90005975cdbb
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/engine/core/view/renderers/cellselectionrenderer.cpp	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,113 @@
+/***************************************************************************
+ *   Copyright (C) 2005-2008 by the FIFE Team                              *
+ *   http://www.fifengine.de                                               *
+ *   This file is part of FIFE.                                            *
+ *                                                                         *
+ *   FIFE 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.,                                       *
+ *   51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA              *
+ ***************************************************************************/
+
+// Standard C++ library includes
+
+// 3rd party library includes
+
+// FIFE includes
+// These includes are split up in two parts, separated by one empty line
+// First block: files included from the FIFE root src directory
+// Second block: files included from the same folder
+#include "video/renderbackend.h"
+#include "util/math/fife_math.h"
+#include "util/log/logger.h"
+#include "model/metamodel/grids/cellgrid.h"
+#include "model/structures/instance.h"
+#include "model/structures/layer.h"
+#include "model/structures/location.h"
+
+#include "view/camera.h"
+#include "cellselectionrenderer.h"
+
+
+namespace FIFE {
+	static Logger _log(LM_VIEWVIEW);
+
+	CellSelectionRenderer::CellSelectionRenderer(RenderBackend* renderbackend, int position):
+		RendererBase(renderbackend, position),
+		m_loc(NULL) {
+		setEnabled(true);
+	}
+
+ 	CellSelectionRenderer::CellSelectionRenderer(const CellSelectionRenderer& old):
+		RendererBase(old),
+		m_loc(NULL) {
+		setEnabled(true);
+	}
+
+	RendererBase* CellSelectionRenderer::clone() {
+		return new CellSelectionRenderer(*this);
+	}
+
+	CellSelectionRenderer::~CellSelectionRenderer() {
+	}
+
+	CellSelectionRenderer* CellSelectionRenderer::getInstance(IRendererContainer* cnt) {
+		return dynamic_cast<CellSelectionRenderer*>(cnt->getRenderer("CellSelectionRenderer"));
+	}
+	
+	void CellSelectionRenderer::reset() {
+		delete m_loc;
+		m_loc = NULL;
+	}
+
+	void CellSelectionRenderer::selectLocation(Location* loc) {
+		delete m_loc;
+		m_loc = NULL;
+		if (loc) {
+			m_loc = new Location(*loc);
+		}
+	}
+
+	void CellSelectionRenderer::render(Camera* cam, Layer* layer, std::vector<Instance*>& instances) {
+		if (!m_loc) {
+			return;
+		}
+		
+		if (layer != m_loc->getLayer()) {
+			return;
+		}
+		
+		CellGrid* cg = layer->getCellGrid();
+		if (!cg) {
+			FL_WARN(_log, "No cellgrid assigned to layer, cannot draw selection");
+			return;
+		}
+
+		std::vector<ExactModelCoordinate> vertices;
+		cg->getVertices(vertices, m_loc->getLayerCoordinates());
+		std::vector<ExactModelCoordinate>::const_iterator it = vertices.begin();
+		ScreenPoint firstpt = cam->toScreenCoordinates(cg->toMapCoordinates(*it));
+		Point pt1(firstpt.x, firstpt.y);
+		Point pt2;
+		++it;
+		for (; it != vertices.end(); it++) {
+			ScreenPoint pts = cam->toScreenCoordinates(cg->toMapCoordinates(*it));
+			pt2.x = pts.x; pt2.y = pts.y;
+			Point cpt1 = pt1;
+			Point cpt2 = pt2;
+			m_renderbackend->drawLine(cpt1, cpt2, 255, 0, 0);
+			pt1 = pt2;
+		}
+		m_renderbackend->drawLine(pt2, Point(firstpt.x, firstpt.y), 255, 0, 0);
+	}
+}