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comparison engine/core/gui/base/opengl/opengl_gui_graphics.cpp @ 0:4a0efb7baf70

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* 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
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children 90005975cdbb
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-1:000000000000 0:4a0efb7baf70
1 /***************************************************************************
2 * Copyright (C) 2005-2008 by the FIFE team *
3 * http://www.fifengine.de *
4 * This file is part of FIFE. *
5 * *
6 * FIFE is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 * *
11 * This program is distributed in the hope that it will be useful, *
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
14 * GNU General Public License for more details. *
15 * *
16 * You should have received a copy of the GNU General Public License *
17 * along with this program; if not, write to the *
18 * Free Software Foundation, Inc., *
19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA *
20 ***************************************************************************/
21
22 // Standard C++ library includes
23
24 // 3rd party library includes
25 #include <guichan/opengl.hpp>
26 #include <guichan/font.hpp>
27 #include <guichan/exception.hpp>
28
29
30 // FIFE includes
31 // These includes are split up in two parts, separated by one empty line
32 // First block: files included from the FIFE root src dir
33 #include "video/image.h"
34 #include "gui/base/gui_image.h"
35 #include "util/structures/rect.h"
36
37 #include "opengl_gui_graphics.h"
38
39 namespace FIFE {
40 struct GLEnable {
41 GLenum m_flag;
42 GLboolean m_oldval;
43 GLEnable(GLenum flag) : m_flag(flag) {
44 glGetBooleanv(flag, &m_oldval);
45 if (!m_oldval) {
46 glEnable(flag);
47 }
48 }
49 ~GLEnable() {
50 if (!m_oldval) {
51 glDisable(m_flag);
52 }
53 }
54 };
55
56 struct GLDisable {
57 GLenum m_flag;
58 GLboolean m_oldval;
59 GLDisable(GLenum flag) : m_flag(flag) {
60 glGetBooleanv(flag, &m_oldval);
61 if (m_oldval) {
62 glDisable(flag);
63 }
64 }
65 ~GLDisable() {
66 if (m_oldval) {
67 glEnable(m_flag);
68 }
69 }
70 };
71
72 OpenGLGuiGraphics::OpenGLGuiGraphics(ImagePool& pool): m_pool(pool) {
73 mTarget = SDL_GetVideoSurface();
74 assert(mTarget);
75 setTargetPlane(mTarget->w, mTarget->h);
76
77 }
78
79 void OpenGLGuiGraphics::drawImage(const gcn::Image* image, int srcX, int srcY, int dstX, int dstY, int width, int height) {
80 const GuiImage* g_img = dynamic_cast<const GuiImage*>(image);
81 assert(g_img);
82 Image& fifeimg = m_pool.getImage(g_img->getPoolId());
83 const gcn::ClipRectangle& clip = getCurrentClipArea();
84 Rect rect(dstX, dstY, width, height);
85 rect.x += clip.xOffset;
86 rect.y += clip.yOffset;
87 GLEnable flag(GL_TEXTURE_2D);
88 fifeimg.render(rect, mTarget);
89 }
90
91 void OpenGLGuiGraphics::drawText(const std::string& text, int x, int y,
92 unsigned int alignment) {
93 if (mFont == NULL)
94 {
95 throw GCN_EXCEPTION("No font set.");
96 }
97
98 GLEnable flag(GL_TEXTURE_2D);
99 switch (alignment)
100 {
101 case LEFT:
102 mFont->drawString(this, text, x, y);
103 break;
104 case CENTER:
105 mFont->drawString(this, text, x - mFont->getWidth(text) / 2, y);
106 break;
107 case RIGHT:
108 mFont->drawString(this, text, x - mFont->getWidth(text), y);
109 break;
110 default:
111 throw GCN_EXCEPTION("Unknown alignment.");
112 }
113 }
114
115 void OpenGLGuiGraphics::drawPoint(int x, int y) {
116 GLDisable flag(GL_TEXTURE_2D);
117 gcn::OpenGLGraphics::drawPoint(x, y);
118 }
119
120 void OpenGLGuiGraphics::drawLine(int x1, int y1, int x2, int y2) {
121 GLDisable flag(GL_TEXTURE_2D);
122 gcn::OpenGLGraphics::drawLine(x1, y1, x2, y2);
123 }
124
125 void OpenGLGuiGraphics::drawRectangle(const gcn::Rectangle& rectangle) {
126 GLDisable flag(GL_TEXTURE_2D);
127 gcn::OpenGLGraphics::drawRectangle(rectangle);
128 }
129 }