diff engine/core/gui/base/opengl/opengl_gui_graphics.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/gui/base/opengl/opengl_gui_graphics.cpp	Sun Jun 29 18:44:17 2008 +0000
@@ -0,0 +1,129 @@
+/***************************************************************************
+ *   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
+#include <guichan/opengl.hpp>
+#include <guichan/font.hpp>
+#include <guichan/exception.hpp>
+
+
+// FIFE includes
+// These includes are split up in two parts, separated by one empty line
+// First block: files included from the FIFE root src dir
+#include "video/image.h"
+#include "gui/base/gui_image.h"
+#include "util/structures/rect.h"
+
+#include "opengl_gui_graphics.h"
+
+namespace FIFE {
+	struct GLEnable {
+		GLenum m_flag;
+		GLboolean m_oldval;
+		GLEnable(GLenum flag) : m_flag(flag) { 
+			glGetBooleanv(flag, &m_oldval);
+			if (!m_oldval) {
+				glEnable(flag);
+			}
+		}
+		~GLEnable() { 
+			if (!m_oldval) {
+				glDisable(m_flag);
+			}
+		}
+	};
+
+	struct GLDisable {
+		GLenum m_flag;
+		GLboolean m_oldval;
+		GLDisable(GLenum flag) : m_flag(flag) { 
+			glGetBooleanv(flag, &m_oldval);
+			if (m_oldval) {
+				glDisable(flag);
+			}
+		}
+		~GLDisable() { 
+			if (m_oldval) {
+				glEnable(m_flag);
+			}
+		}
+	};
+
+	OpenGLGuiGraphics::OpenGLGuiGraphics(ImagePool& pool): m_pool(pool) {
+		mTarget = SDL_GetVideoSurface();
+		assert(mTarget);
+		setTargetPlane(mTarget->w, mTarget->h);
+		
+	}
+
+	void OpenGLGuiGraphics::drawImage(const gcn::Image* image, int srcX, int srcY, int dstX, int dstY, int width, int height) {
+		const GuiImage* g_img = dynamic_cast<const GuiImage*>(image);
+		assert(g_img);
+		Image& fifeimg = m_pool.getImage(g_img->getPoolId());
+		const gcn::ClipRectangle& clip = getCurrentClipArea();
+		Rect rect(dstX, dstY, width, height);
+		rect.x += clip.xOffset;
+		rect.y += clip.yOffset;
+		GLEnable flag(GL_TEXTURE_2D);
+		fifeimg.render(rect, mTarget);
+	}
+
+	void OpenGLGuiGraphics::drawText(const std::string& text, int x, int y,
+			unsigned int alignment) {
+		if (mFont == NULL)
+		{
+			throw GCN_EXCEPTION("No font set.");
+		}
+
+		GLEnable flag(GL_TEXTURE_2D);
+		switch (alignment)
+		{
+			case LEFT:
+				mFont->drawString(this, text, x, y);
+				break;
+			case CENTER:
+				mFont->drawString(this, text, x - mFont->getWidth(text) / 2, y);
+				break;
+			case RIGHT:
+				mFont->drawString(this, text, x - mFont->getWidth(text), y);
+				break;
+			default:
+				throw GCN_EXCEPTION("Unknown alignment.");
+		}
+	}
+
+	void OpenGLGuiGraphics::drawPoint(int x, int y) {
+		GLDisable flag(GL_TEXTURE_2D);
+		gcn::OpenGLGraphics::drawPoint(x, y);
+	}
+
+	void OpenGLGuiGraphics::drawLine(int x1, int y1, int x2, int y2) {
+		GLDisable flag(GL_TEXTURE_2D);
+		gcn::OpenGLGraphics::drawLine(x1, y1, x2, y2);
+	}
+
+	void OpenGLGuiGraphics::drawRectangle(const gcn::Rectangle& rectangle) {
+		GLDisable flag(GL_TEXTURE_2D);
+		gcn::OpenGLGraphics::drawRectangle(rectangle);
+	}
+}