FIFE  2008.0
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opengl_gui_graphics.cpp
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 *
7  * modify it under the terms of the GNU Lesser General Public *
8  * License as published by the Free Software Foundation; either *
9  * version 2.1 of the License, or (at your option) any later version. *
10  * *
11  * This library 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 GNU *
14  * Lesser General Public License for more details. *
15  * *
16  * You should have received a copy of the GNU Lesser General Public *
17  * License along with this library; if not, write to the *
18  * Free Software Foundation, Inc., *
19  * 51 Franklin Street, 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 #include "video/opengl/fife_opengl.h"
37 
38 #include "opengl_gui_graphics.h"
39 
40 namespace FIFE {
42  mTarget = SDL_GetVideoSurface();
43  assert(mTarget);
44  setTargetPlane(mTarget->w, mTarget->h);
45 
46  }
47 
48  void OpenGLGuiGraphics::drawImage(const gcn::Image* image, int srcX, int srcY, int dstX, int dstY, int width, int height) {
49  const GuiImage* g_img = dynamic_cast<const GuiImage*>(image);
50  assert(g_img);
51  Image& fifeimg = m_pool.getImage(g_img->getPoolId());
52  const gcn::ClipRectangle& clip = getCurrentClipArea();
53  Rect rect(dstX, dstY, width, height);
54  rect.x += clip.xOffset;
55  rect.y += clip.yOffset;
56  GLEnable flag(GL_TEXTURE_2D);
57  fifeimg.render(rect, mTarget);
58  }
59 
60  void OpenGLGuiGraphics::drawText(const std::string& text, int x, int y,
61  unsigned int alignment) {
62  if (mFont == NULL)
63  {
64  throw GCN_EXCEPTION("No font set.");
65  }
66 
67  GLEnable flag(GL_TEXTURE_2D);
68  switch (alignment)
69  {
70  case LEFT:
71  mFont->drawString(this, text, x, y);
72  break;
73  case CENTER:
74  mFont->drawString(this, text, x - mFont->getWidth(text) / 2, y);
75  break;
76  case RIGHT:
77  mFont->drawString(this, text, x - mFont->getWidth(text), y);
78  break;
79  default:
80  throw GCN_EXCEPTION("Unknown alignment.");
81  }
82  }
83 
84  void OpenGLGuiGraphics::drawPoint(int x, int y) {
85  GLDisable flag(GL_TEXTURE_2D);
86  gcn::OpenGLGraphics::drawPoint(x, y);
87  }
88 
89  void OpenGLGuiGraphics::drawLine(int x1, int y1, int x2, int y2) {
90  GLDisable flag(GL_TEXTURE_2D);
91  gcn::OpenGLGraphics::drawLine(x1, y1, x2, y2);
92  }
93 
94  void OpenGLGuiGraphics::drawRectangle(const gcn::Rectangle& rectangle) {
95  GLDisable flag(GL_TEXTURE_2D);
96  gcn::OpenGLGraphics::drawRectangle(rectangle);
97  }
98 }