[692] | 1 | /*
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| 2 | -----------------------------------------------------------------------------
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| 3 | This source file is part of OGRE
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| 4 | (Object-oriented Graphics Rendering Engine)
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| 5 | For the latest info, see http://www.ogre3d.org/
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| 6 |
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| 7 | Copyright (c) 2000-2005 The OGRE Team
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| 8 | Also see acknowledgements in Readme.html
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify it under
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software
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| 12 | Foundation; either version 2 of the License, or (at your option) any later
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| 13 | version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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| 22 | http://www.gnu.org/copyleft/lesser.txt.
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| 23 | -----------------------------------------------------------------------------
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| 24 | */
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| 25 | #include "OgreGLXConfig.h"
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| 26 | #include "OgreException.h"
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| 27 | #include "OgreImage.h"
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| 28 | #include "OgreLogManager.h"
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| 29 |
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| 30 | #include <cstdlib>
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| 31 | #include <iostream>
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| 32 |
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| 33 | #include <string>
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| 34 |
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| 35 | #include <X11/X.h>
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| 36 | #include <X11/Xutil.h>
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| 37 | #include <X11/Xlib.h>
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| 38 | #include <X11/keysym.h>
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| 39 |
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| 40 | #include <X11/Intrinsic.h>
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| 41 | #include <X11/StringDefs.h>
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| 42 | #include <X11/Xaw/Command.h>
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| 43 | #include <X11/Xaw/Form.h>
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| 44 | #include <X11/Xaw/Box.h>
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| 45 | #include <X11/Shell.h>
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| 46 | #include <X11/Xaw/Toggle.h>
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| 47 | #include <X11/Xaw/MenuButton.h>
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| 48 | #include <X11/Xaw/SimpleMenu.h>
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| 49 | #include <X11/Xaw/SmeBSB.h>
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| 50 |
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| 51 | #include <list>
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| 52 |
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| 53 | namespace {
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| 54 | /**
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| 55 | Backdrop image. This must be sized mWidth by mHeight, and produce a
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| 56 | RGB pixel format when loaded with Image::load .
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| 57 |
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| 58 | You can easily generate your own backdrop with the following python script:
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| 59 |
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| 60 | #!/usr/bin/python
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| 61 | import sys
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| 62 | pngstring=open(sys.argv[2], "rb").read()
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| 63 | print "char %s[%i]={%s};" % (sys.argv[1],len(pngstring), ",".join([str(ord(x)) for x in pngstring]))
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| 64 |
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| 65 | Call this with
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| 66 | $ bintoheader.py GLX_backdrop GLX_backdrop.png > GLX_backdrop.h
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| 67 |
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| 68 | */
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| 69 | #include "GLX_backdrop.h"
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| 70 |
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| 71 | };
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| 72 |
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| 73 | namespace Ogre {
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| 74 |
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| 75 | /**
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| 76 | * Single X window with image backdrop, making it possible to configure
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| 77 | * OGRE in a graphical way.
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| 78 | * XaW uses a not-very-smart widget positioning system, so I override it to use
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| 79 | * fixed positions. This works great, but it means you need to define the various
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| 80 | * positions manually.
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| 81 | * Furthermore, it has no OptionMenu by default, so I simulate this with dropdown
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| 82 | * buttons.
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| 83 | */
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| 84 | class GLXConfigurator {
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| 85 | /* GUI constants */
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| 86 | static const int wWidth = 400; // Width of window
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| 87 | static const int wHeight = 300; // Height of window
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| 88 | static const int col1x = 20; // Starting x of column 1 (labels)
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| 89 | static const int col2x = 180; // Starting x of column 2 (options)
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| 90 | static const int col1w = 150; // Width of column 1 (labels)
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| 91 | static const int col2w = 200; // Width of column 2 (options)
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| 92 | static const int ystart = 105; // Starting y of option table rows
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| 93 | static const int rowh = 20; // Height of one row in the option table
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| 94 |
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| 95 | public:
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| 96 | GLXConfigurator();
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| 97 | virtual ~GLXConfigurator();
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| 98 |
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| 99 | bool CreateWindow();
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| 100 | void Main();
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| 101 | /**
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| 102 | * Exit from main loop.
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| 103 | */
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| 104 | void Exit();
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| 105 | protected:
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| 106 | Display *mDisplay;
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| 107 | Window mWindow;
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| 108 | Pixmap mBackDrop;
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| 109 |
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| 110 | int mWidth, mHeight;
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| 111 | // Xt
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| 112 | XtAppContext appContext;
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| 113 | Widget toplevel;
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| 114 |
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| 115 | /**
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| 116 | * Create backdrop image, and return it as a Pixmap.
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| 117 | */
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| 118 | virtual Pixmap CreateBackdrop(Window rootWindow, int depth);
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| 119 | /**
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| 120 | * Called after window initialisation.
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| 121 | */
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| 122 | virtual bool Init();
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| 123 | /**
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| 124 | * Called initially, and on expose.
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| 125 | */
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| 126 | virtual void Draw();
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| 127 | public:
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| 128 | /* Local */
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| 129 | bool accept;
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| 130 | /* Class that binds a callback to a RenderSystem */
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| 131 | class RendererCallbackData {
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| 132 | public:
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| 133 | RendererCallbackData(GLXConfigurator *parent, RenderSystem *renderer, Widget optionmenu):
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| 134 | parent(parent),
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| 135 | renderer(renderer),
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| 136 | optionmenu(optionmenu) {
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| 137 | }
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| 138 | GLXConfigurator *parent;
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| 139 | RenderSystem *renderer;
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| 140 | Widget optionmenu;
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| 141 | };
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| 142 | std::list<RendererCallbackData> mRendererCallbackData;
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| 143 |
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| 144 | RenderSystem *mRenderer;
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| 145 | Widget box; // Box'o control widgets
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| 146 | std::list<Widget> mRenderOptionWidgets; // List of RenderSystem specific
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| 147 | // widgets for visibility management (cleared when another rendersystem is selected)
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| 148 | /* Class that binds a callback to a certain configuration option/value */
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| 149 | class ConfigCallbackData {
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| 150 | public:
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| 151 | ConfigCallbackData(GLXConfigurator *parent, const std::string &optionName, const std::string &valueName, Widget optionmenu):
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| 152 | parent(parent),
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| 153 | optionName(optionName),
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| 154 | valueName(valueName),
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| 155 | optionmenu(optionmenu) {
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| 156 | }
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| 157 | GLXConfigurator *parent;
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| 158 | std::string optionName, valueName;
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| 159 | Widget optionmenu;
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| 160 | };
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| 161 | std::list<ConfigCallbackData> mConfigCallbackData;
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| 162 |
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| 163 | void SetRenderSystem(RenderSystem *sys) {
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| 164 | mRenderer = sys;
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| 165 | }
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| 166 | private:
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| 167 | /* Callbacks that terminate modal dialog loop */
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| 168 | static void acceptHandler(Widget w, GLXConfigurator *obj, XtPointer callData) {
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| 169 | // Check if a renderer was selected, if not, don't accept
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| 170 | if(!obj->mRenderer)
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| 171 | return;
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| 172 | obj->accept = true;
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| 173 | obj->Exit();
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| 174 | }
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| 175 | static void cancelHandler(Widget w, GLXConfigurator *obj, XtPointer callData) {
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| 176 | obj->Exit();
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| 177 | }
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| 178 | /* Callbacks that set a setting */
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| 179 | static void renderSystemHandler(Widget w, RendererCallbackData *cdata, XtPointer callData) {
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| 180 | // Set selected renderer its name
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| 181 | XtVaSetValues(cdata->optionmenu, XtNlabel, cdata->renderer->getName().c_str(), 0, NULL);
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| 182 | // Notify Configurator (and Ogre)
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| 183 | cdata->parent->SetRenderer(cdata->renderer);
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| 184 | }
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| 185 | static void configOptionHandler(Widget w, ConfigCallbackData *cdata, XtPointer callData) {
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| 186 | // Set selected renderer its name
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| 187 | XtVaSetValues(cdata->optionmenu, XtNlabel, cdata->valueName.c_str(), 0, NULL);
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| 188 | // Notify Configurator (and Ogre)
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| 189 | cdata->parent->SetConfigOption(cdata->optionName, cdata->valueName);
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| 190 | }
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| 191 |
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| 192 | /* Functions reacting to GUI */
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| 193 | void SetRenderer(RenderSystem *);
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| 194 | void SetConfigOption(const std::string &optionName, const std::string &valueName);
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| 195 | };
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| 196 |
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| 197 | GLXConfigurator::GLXConfigurator():
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| 198 | mDisplay(0), mWindow(0), mBackDrop(0),
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| 199 | mWidth(wWidth), mHeight(wHeight),
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| 200 | appContext(0), toplevel(0),
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| 201 |
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| 202 | accept(false),
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| 203 | mRenderer(0) {
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| 204 | }
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| 205 | GLXConfigurator::~GLXConfigurator() {
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| 206 | if(mBackDrop)
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| 207 | XFreePixmap(mDisplay, mBackDrop);
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| 208 | if(toplevel) {
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| 209 | XtUnrealizeWidget(toplevel);
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| 210 | XtDestroyWidget(toplevel);
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| 211 | }
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| 212 | if(mDisplay) {
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| 213 | XCloseDisplay(mDisplay);
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| 214 | }
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| 215 | }
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| 216 |
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| 217 | bool GLXConfigurator::CreateWindow() {
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| 218 |
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| 219 |
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| 220 | char *bla[] = {"Rendering Settings", "-bg", "black", "-fg", "green","-bd","darkgreen"};
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| 221 | int argc = sizeof(bla)/sizeof(*bla);
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| 222 |
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| 223 | toplevel = XtVaOpenApplication(&appContext, "OGRE", NULL, 0, &argc, bla, NULL,sessionShellWidgetClass,
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| 224 | XtNwidth, mWidth,
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| 225 | XtNheight, mHeight,
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| 226 | XtNminWidth, mWidth,
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| 227 | XtNmaxWidth, mWidth,
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| 228 | XtNminHeight, mHeight,
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| 229 | XtNmaxHeight, mHeight,
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| 230 | XtNallowShellResize, False,
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| 231 | XtNborderWidth, 0,
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| 232 | XtNoverrideRedirect, True,
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| 233 | NULL, NULL);
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| 234 |
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| 235 | /* Find out display and screen used */
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| 236 | mDisplay = XtDisplay(toplevel);
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| 237 | int screen = DefaultScreen(mDisplay);
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| 238 | Window rootWindow = RootWindow(mDisplay,screen);
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| 239 |
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| 240 | /* Move to center of display */
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| 241 | int w = DisplayWidth(mDisplay, screen);
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| 242 | int h = DisplayHeight(mDisplay, screen);
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| 243 | XtVaSetValues(toplevel,
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| 244 | XtNx, w/2-mWidth/2,
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| 245 | XtNy, h/2-mHeight/2, 0, NULL);
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| 246 |
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| 247 | /* Backdrop stuff */
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| 248 | mBackDrop = CreateBackdrop(rootWindow, DefaultDepth(mDisplay,screen));
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| 249 |
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| 250 | /* Create toplevel */
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| 251 | box = XtVaCreateManagedWidget("box",formWidgetClass,toplevel,
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| 252 | XtNbackgroundPixmap, mBackDrop,
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| 253 | 0,NULL);
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| 254 |
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| 255 | /* Create renderer selection */
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| 256 | int cury = ystart + 0*rowh;
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| 257 |
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| 258 | Widget lb1 = XtVaCreateManagedWidget("topLabel", labelWidgetClass, box, XtNlabel, "Select Renderer", XtNborderWidth, 0,
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| 259 | XtNwidth, col1w, // Fixed width
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| 260 | XtNheight, 18,
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| 261 | XtNleft, XawChainLeft,
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| 262 | XtNtop, XawChainTop,
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| 263 | XtNright, XawChainLeft,
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| 264 | XtNbottom, XawChainTop,
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| 265 | XtNhorizDistance, col1x,
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| 266 | XtNvertDistance, cury,
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| 267 | XtNjustify, XtJustifyLeft,
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| 268 | NULL);
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| 269 | const char *curRenderName = " Select One "; // Name of current renderer, or hint to select one
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| 270 | if(mRenderer)
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| 271 | curRenderName = mRenderer->getName().c_str();
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| 272 | Widget mb1 = XtVaCreateManagedWidget("Menu", menuButtonWidgetClass, box, XtNlabel,curRenderName,
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| 273 | XtNresize, false,
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| 274 | XtNresizable, false,
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| 275 | XtNwidth, col2w, // Fixed width
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| 276 | XtNheight, 18,
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| 277 | XtNleft, XawChainLeft,
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| 278 | XtNtop, XawChainTop,
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| 279 | XtNright, XawChainLeft,
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| 280 | XtNbottom, XawChainTop,
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| 281 | XtNhorizDistance, col2x,
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| 282 | XtNvertDistance, cury,
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| 283 | NULL);
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| 284 |
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| 285 | Widget menu = XtVaCreatePopupShell("menu", simpleMenuWidgetClass, mb1,
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| 286 | 0, NULL);
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| 287 |
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| 288 | RenderSystemList* renderers = Root::getSingleton().getAvailableRenderers();
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| 289 | for (RenderSystemList::iterator pRend = renderers->begin();
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| 290 | pRend != renderers->end(); pRend++) {
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| 291 | // Create callback data
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| 292 | mRendererCallbackData.push_back(RendererCallbackData(this, *pRend, mb1));
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| 293 |
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| 294 | Widget entry = XtVaCreateManagedWidget("menuentry", smeBSBObjectClass, menu,
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| 295 | XtNlabel, (*pRend)->getName().c_str(),
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| 296 | 0, NULL);
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| 297 | XtAddCallback(entry, XtNcallback, (XtCallbackProc)&GLXConfigurator::renderSystemHandler, &mRendererCallbackData.back());
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| 298 | }
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| 299 |
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| 300 | Widget bottomPanel = XtVaCreateManagedWidget("bottomPanel", formWidgetClass, box,
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| 301 | XtNsensitive, True,
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| 302 | XtNborderWidth, 0,
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| 303 | XtNwidth, 150, // Fixed width
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| 304 | XtNleft, XawChainLeft,
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| 305 | XtNtop, XawChainTop,
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| 306 | XtNright, XawChainLeft,
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| 307 | XtNbottom, XawChainTop,
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| 308 | XtNhorizDistance, mWidth - 160,
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| 309 | XtNvertDistance, mHeight - 40,
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| 310 | NULL);
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| 311 |
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| 312 | Widget helloButton = XtVaCreateManagedWidget("cancelButton", commandWidgetClass, bottomPanel, XtNlabel," Cancel ", NULL);
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| 313 | XtAddCallback(helloButton, XtNcallback, (XtCallbackProc)&GLXConfigurator::cancelHandler, this);
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| 314 |
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| 315 | Widget exitButton = XtVaCreateManagedWidget("acceptButton", commandWidgetClass, bottomPanel, XtNlabel," Accept ", XtNfromHoriz,helloButton, NULL);
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| 316 | XtAddCallback(exitButton, XtNcallback, (XtCallbackProc)&GLXConfigurator::acceptHandler, this);
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| 317 |
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| 318 | XtRealizeWidget(toplevel);
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| 319 |
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| 320 | if(mRenderer)
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| 321 | /* There was already a renderer selected; display its options */
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| 322 | SetRenderer(mRenderer);
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| 323 |
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| 324 | return true;
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| 325 | }
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| 326 |
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| 327 | Pixmap GLXConfigurator::CreateBackdrop(Window rootWindow, int depth) {
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| 328 | int bpl;
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| 329 | /* Find out number of bytes per pixel */
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| 330 | switch(depth) {
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| 331 | default:
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| 332 | LogManager::getSingleton().logMessage("GLX backdrop: Undsupported bit depth");
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| 333 | /* Unsupported bit depth */
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| 334 | return 0;
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| 335 | case 15:
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| 336 | case 16:
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| 337 | bpl = 2; break;
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| 338 | case 24:
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| 339 | case 32:
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| 340 | bpl = 4; break;
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| 341 | }
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| 342 | /* Create background pixmap */
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| 343 | unsigned char *data = 0; // Must be allocated with malloc
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| 344 |
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| 345 | try {
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| 346 | String imgType = "png";
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| 347 | Image img;
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| 348 | MemoryDataStream *imgStream;
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| 349 | DataStreamPtr imgStreamPtr;
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| 350 |
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| 351 | // Load backdrop image using OGRE
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| 352 | imgStream = new MemoryDataStream((void*)GLX_backdrop_data, sizeof(GLX_backdrop_data), false);
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| 353 | imgStreamPtr = DataStreamPtr(imgStream);
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| 354 | img.load(imgStreamPtr, imgType);
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| 355 |
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| 356 | PixelBox src = img.getPixelBox(0, 0);
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| 357 |
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| 358 | // Convert and copy image
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| 359 | data = (unsigned char*)malloc(mWidth * mHeight * bpl); // Must be allocated with malloc
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| 360 |
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| 361 | PixelBox dst(src, bpl == 2 ? PF_B5G6R5 : PF_A8R8G8B8, data );
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| 362 |
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| 363 | PixelUtil::bulkPixelConversion(src, dst);
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| 364 | } catch(Exception &e) {
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| 365 | // Could not find image; never mind
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| 366 | LogManager::getSingleton().logMessage("GLX backdrop image not found: Warning");
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| 367 | return 0;
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| 368 | }
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| 369 |
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| 370 | GC context = XCreateGC (mDisplay, rootWindow, 0, NULL);
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| 371 |
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| 372 | /* put my pixmap data into the client side X image data structure */
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| 373 | XImage *image = XCreateImage (mDisplay, NULL, depth, ZPixmap, 0,
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| 374 | (char*)data,
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| 375 | mWidth, mHeight, 8,
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| 376 | mWidth*bpl);
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| 377 | #if OGRE_ENDIAN == OGRE_ENDIAN_BIG
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| 378 | image->byte_order = MSBFirst;
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| 379 | #else
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| 380 | image->byte_order = LSBFirst;
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| 381 | #endif
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| 382 |
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| 383 | /* tell server to start managing my pixmap */
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| 384 | Pixmap rv = XCreatePixmap(mDisplay, rootWindow, mWidth,
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| 385 | mHeight, depth);
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| 386 |
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| 387 | /* copy from client to server */
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| 388 | XPutImage(mDisplay, rv, context, image, 0, 0, 0, 0,
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| 389 | mWidth, mHeight);
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| 390 |
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| 391 | /* free up the client side pixmap data area */
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| 392 | XDestroyImage(image); // also cleans data
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| 393 | XFreeGC(mDisplay, context);
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| 394 |
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| 395 | return rv;
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| 396 | }
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| 397 | bool GLXConfigurator::Init() {
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| 398 | // Init misc resources
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| 399 | return true;
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| 400 | }
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| 401 | void GLXConfigurator::Draw() {
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| 402 | }
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| 403 | void GLXConfigurator::Main() {
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| 404 | XtAppMainLoop(appContext);
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| 405 | }
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| 406 | void GLXConfigurator::Exit() {
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| 407 | XtAppSetExitFlag(appContext);
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| 408 | }
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| 409 |
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| 410 | void GLXConfigurator::SetRenderer(RenderSystem *r) {
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| 411 | mRenderer = r;
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| 412 |
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| 413 | // Destroy each widget of GUI of previously selected renderer
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| 414 | for(std::list<Widget>::iterator i=mRenderOptionWidgets.begin(); i!=mRenderOptionWidgets.end(); i++)
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| 415 | XtDestroyWidget(*i);
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| 416 | mRenderOptionWidgets.clear();
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| 417 | mConfigCallbackData.back();
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| 418 |
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| 419 | // Create option GUI
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| 420 | int cury = ystart + 1*rowh + 10;
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| 421 |
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| 422 | ConfigOptionMap options = mRenderer->getConfigOptions();
|
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| 423 | // Process each option and create an optionmenu widget for it
|
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| 424 | for (ConfigOptionMap::iterator it = options.begin();
|
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| 425 | it != options.end(); it++) {
|
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| 426 | Widget lb1 = XtVaCreateManagedWidget("topLabel", labelWidgetClass, box, XtNlabel, it->second.name.c_str(), XtNborderWidth, 0,
|
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| 427 | XtNwidth, col1w, // Fixed width
|
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| 428 | XtNheight, 18,
|
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| 429 | XtNleft, XawChainLeft,
|
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| 430 | XtNtop, XawChainTop,
|
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| 431 | XtNright, XawChainLeft,
|
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| 432 | XtNbottom, XawChainTop,
|
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| 433 | XtNhorizDistance, col1x,
|
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| 434 | XtNvertDistance, cury,
|
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| 435 | XtNjustify, XtJustifyLeft,
|
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| 436 | NULL);
|
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| 437 | mRenderOptionWidgets.push_back(lb1);
|
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| 438 | Widget mb1 = XtVaCreateManagedWidget("Menu", menuButtonWidgetClass, box, XtNlabel, it->second.currentValue.c_str(),
|
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| 439 | XtNresize, false,
|
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| 440 | XtNresizable, false,
|
---|
| 441 | XtNwidth, col2w, // Fixed width
|
---|
| 442 | XtNheight, 18,
|
---|
| 443 | XtNleft, XawChainLeft,
|
---|
| 444 | XtNtop, XawChainTop,
|
---|
| 445 | XtNright, XawChainLeft,
|
---|
| 446 | XtNbottom, XawChainTop,
|
---|
| 447 | XtNhorizDistance, col2x,
|
---|
| 448 | XtNvertDistance, cury,
|
---|
| 449 | NULL);
|
---|
| 450 | mRenderOptionWidgets.push_back(mb1);
|
---|
| 451 |
|
---|
| 452 | Widget menu = XtVaCreatePopupShell("menu", simpleMenuWidgetClass, mb1,
|
---|
| 453 | 0, NULL);
|
---|
| 454 |
|
---|
| 455 | // Process each choice
|
---|
| 456 | StringVector::iterator opt_it;
|
---|
| 457 | for (opt_it = it->second.possibleValues.begin();
|
---|
| 458 | opt_it != it->second.possibleValues.end(); opt_it++) {
|
---|
| 459 | // Create callback data
|
---|
| 460 | mConfigCallbackData.push_back(ConfigCallbackData(this, it->second.name, *opt_it, mb1));
|
---|
| 461 |
|
---|
| 462 | Widget entry = XtVaCreateManagedWidget("menuentry", smeBSBObjectClass, menu,
|
---|
| 463 | XtNlabel, (*opt_it).c_str(),
|
---|
| 464 | 0, NULL);
|
---|
| 465 | XtAddCallback(entry, XtNcallback, (XtCallbackProc)&GLXConfigurator::configOptionHandler, &mConfigCallbackData.back());
|
---|
| 466 | }
|
---|
| 467 | cury += rowh;
|
---|
| 468 | }
|
---|
| 469 | }
|
---|
| 470 |
|
---|
| 471 | void GLXConfigurator::SetConfigOption(const std::string &optionName, const std::string &valueName) {
|
---|
| 472 | if(!mRenderer)
|
---|
| 473 | // No renderer set -- how can this be called?
|
---|
| 474 | return;
|
---|
| 475 | mRenderer->setConfigOption(optionName, valueName);
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 | bool GLXConfig::display(void) {
|
---|
| 479 | GLXConfigurator test;
|
---|
| 480 | /* Should this be called here? */
|
---|
| 481 | Root::getSingleton().restoreConfig();
|
---|
| 482 | /* Select previously selected rendersystem */
|
---|
| 483 | if(Root::getSingleton().getRenderSystem())
|
---|
| 484 | test.SetRenderSystem(Root::getSingleton().getRenderSystem());
|
---|
| 485 | /* Attempt to create the window */
|
---|
| 486 | if(!test.CreateWindow()) {
|
---|
| 487 | OGRE_EXCEPT(Exception::ERR_INTERNAL_ERROR,
|
---|
| 488 | "Could not create configuration dialog",
|
---|
| 489 | "GLXConfig::display");
|
---|
| 490 | }
|
---|
| 491 | /* Modal loop */
|
---|
| 492 | test.Main();
|
---|
| 493 | if(!test.accept) {
|
---|
| 494 | /* User did not accept */
|
---|
| 495 | return false;
|
---|
| 496 | }
|
---|
| 497 |
|
---|
| 498 | /* All done */
|
---|
| 499 | Root::getSingleton().setRenderSystem(test.mRenderer);
|
---|
| 500 | Root::getSingleton().saveConfig();
|
---|
| 501 |
|
---|
| 502 | return true;
|
---|
| 503 | }
|
---|
| 504 |
|
---|
| 505 | };
|
---|
| 506 |
|
---|