151 lines
4.2 KiB
C
151 lines
4.2 KiB
C
// ---------------------------------------------------------------------------
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//
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// @file TwEventGLUT.c
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// @brief Helper:
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// translate and re-send mouse and keyboard events
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// from GLUT event callbacks to AntTweakBar
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//
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// @author Philippe Decaudin - http://www.antisphere.com
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// @date 2006/05/10
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// @license This file is part of the AntTweakBar library.
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// For conditions of distribution and use, see License.txt
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//
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// ---------------------------------------------------------------------------
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#define GLUT_NO_LIB_PRAGMA // we do not want to force linkage with glut
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#ifdef _MSC_VER
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# pragma warning(disable: 4505) // glut generates 'unreferenced function' warnings
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# pragma warning(disable: 4100) // unreferenced parameter
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#endif // _MSC_VER
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// #include <GL/glut.h>
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#include "MiniGLUT.h" // a subset of glut.h needed to compile TwEventGLUT.c
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// note: AntTweakBar.dll does not need to link with GLUT,
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// it just needs some definitions for its helper functions.
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#include <AntTweakBar.h>
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int TW_GLUT_CALL TwEventMouseButtonGLUT(int glutButton, int glutState, int mouseX, int mouseY)
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{
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TwMouseAction action = (glutState==GLUT_DOWN) ? TW_MOUSE_PRESSED : TW_MOUSE_RELEASED;
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TwMouseMotion(mouseX, mouseY);
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switch( glutButton )
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{
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case GLUT_LEFT_BUTTON:
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return TwMouseButton(action, TW_MOUSE_LEFT);
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case GLUT_RIGHT_BUTTON:
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return TwMouseButton(action, TW_MOUSE_RIGHT);
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case GLUT_MIDDLE_BUTTON:
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return TwMouseButton(action, TW_MOUSE_MIDDLE);
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default:
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return 0;
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}
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}
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int TW_GLUT_CALL TwEventMouseMotionGLUT(int mouseX, int mouseY)
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{
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return TwMouseMotion(mouseX, mouseY);
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}
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// GLUT does not send modifiers state to 'Key' and 'Special' callbacks,
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// and we cannot call glutGetModifiers here because we do not want to link
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// AntTweakBar with glut, so the following function is used to store
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// a pointer to the glutGetModifiers function of the calling application.
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// It must be called at initialisation of the application.
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int (TW_CALL *g_GLUTGetModifiers)(void) = NULL;
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int TW_CALL TwGLUTModifiersFunc(int (TW_CALL *glutGetModifiersFunc)(void))
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{
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g_GLUTGetModifiers = glutGetModifiersFunc;
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return (g_GLUTGetModifiers==NULL) ? 0 : 1;
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}
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int TW_GLUT_CALL TwEventKeyboardGLUT(unsigned char glutKey, int mouseX, int mouseY)
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{
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int kmod = 0;
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if( g_GLUTGetModifiers!=NULL )
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{
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int glutMod = g_GLUTGetModifiers();
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if( glutMod&GLUT_ACTIVE_SHIFT )
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kmod |= TW_KMOD_SHIFT;
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if( glutMod&GLUT_ACTIVE_CTRL )
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kmod |= TW_KMOD_CTRL;
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if( glutMod&GLUT_ACTIVE_ALT )
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kmod |= TW_KMOD_ALT;
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}
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if( (kmod&TW_KMOD_CTRL) && (glutKey>0 && glutKey<27) ) // CTRL special case
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glutKey += 'a'-1;
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return TwKeyPressed((int)glutKey, kmod);
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}
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int TW_GLUT_CALL TwEventSpecialGLUT(int glutKey, int mouseX, int mouseY)
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{
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int k = 0, kmod = 0;
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if( g_GLUTGetModifiers!=NULL )
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{
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int glutMod = g_GLUTGetModifiers();
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if( glutMod&GLUT_ACTIVE_SHIFT )
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kmod |= TW_KMOD_SHIFT;
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if( glutMod&GLUT_ACTIVE_CTRL )
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kmod |= TW_KMOD_CTRL;
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if( glutMod&GLUT_ACTIVE_ALT )
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kmod |= TW_KMOD_ALT;
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}
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if( glutKey>=GLUT_KEY_F1 && glutKey<=GLUT_KEY_F12 )
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k = TW_KEY_F1 + (glutKey-GLUT_KEY_F1);
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else
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{
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switch( glutKey )
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{
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case GLUT_KEY_LEFT:
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k = TW_KEY_LEFT;
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break;
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case GLUT_KEY_UP:
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k = TW_KEY_UP;
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break;
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case GLUT_KEY_RIGHT:
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k = TW_KEY_RIGHT;
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break;
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case GLUT_KEY_DOWN:
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k = TW_KEY_DOWN;
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break;
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case GLUT_KEY_PAGE_UP:
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k = TW_KEY_PAGE_UP;
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break;
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case GLUT_KEY_PAGE_DOWN:
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k = TW_KEY_PAGE_DOWN;
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break;
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case GLUT_KEY_HOME:
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k = TW_KEY_HOME;
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break;
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case GLUT_KEY_END:
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k = TW_KEY_END;
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break;
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case GLUT_KEY_INSERT:
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k = TW_KEY_INSERT;
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break;
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}
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}
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if( k>0 && k<TW_KEY_LAST )
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return TwKeyPressed(k, kmod);
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else
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return 0;
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}
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