projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| dc3065a5 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/common/glcmn.cpp | |
| 3 | // Purpose: wxGLCanvasBase implementation | |
| 4 | // Author: Vadim Zeitlin | |
| 5 | // Created: 2007-04-09 | |
| 6 | // RCS-ID: $Id$ | |
| 7 | // Copyright: (c) 2007 Vadim Zeitlin <vadim@wxwindows.org> | |
| 8 | // Licence: wxWindows licence | |
| 9 | /////////////////////////////////////////////////////////////////////////////// | |
| 10 | ||
| 11 | // ============================================================================ | |
| 12 | // declarations | |
| 13 | // ============================================================================ | |
| 14 | ||
| 15 | // ---------------------------------------------------------------------------- | |
| 16 | // headers | |
| 17 | // ---------------------------------------------------------------------------- | |
| 18 | ||
| 19 | // for compilers that support precompilation, includes "wx.h". | |
| 20 | #include "wx/wxprec.h" | |
| 21 | ||
| 22 | #ifdef __BORLANDC__ | |
| 23 | #pragma hdrstop | |
| 24 | #endif | |
| 25 | ||
| 26 | #if wxUSE_GLCANVAS | |
| 27 | ||
| 28 | #ifndef WX_PRECOMP | |
| 29 | #include "wx/log.h" | |
| 30 | #endif // WX_PRECOMP | |
| 31 | ||
| 32 | #include "wx/glcanvas.h" | |
| 33 | ||
| 34 | // DLL options compatibility check: | |
| 35 | #include "wx/build.h" | |
| 36 | WX_CHECK_BUILD_OPTIONS("wxGL") | |
| 37 | ||
| 38 | IMPLEMENT_CLASS(wxGLApp, wxApp) | |
| 39 | ||
| 40 | // ============================================================================ | |
| 41 | // implementation | |
| 42 | // ============================================================================ | |
| 43 | ||
| 15b239c0 VZ |
44 | wxGLCanvasBase::wxGLCanvasBase() |
| 45 | { | |
| 46 | #if WXWIN_COMPATIBILITY_2_8 | |
| 47 | m_glContext = NULL; | |
| 48 | #endif | |
| 49 | ||
| 50 | // we always paint background entirely ourselves so prevent wx from erasing | |
| 51 | // it to avoid flicker | |
| 52 | SetBackgroundStyle(wxBG_STYLE_CUSTOM); | |
| 53 | } | |
| 54 | ||
| 5ec69e96 | 55 | bool wxGLCanvasBase::SetCurrent(const wxGLContext& context) const |
| dc3065a5 VZ |
56 | { |
| 57 | // although on MSW it works even if the window is still hidden, it doesn't | |
| 58 | // work in other ports (notably X11-based ones) and documentation mentions | |
| 59 | // that SetCurrent() can only be called for a shown window, so check for it | |
| 60 | wxASSERT_MSG( IsShownOnScreen(), _T("can't make hidden GL canvas current") ); | |
| 61 | ||
| 5ec69e96 | 62 | return context.SetCurrent(*wx_static_cast(const wxGLCanvas *, this)); |
| dc3065a5 VZ |
63 | } |
| 64 | ||
| 35f1f4f7 | 65 | bool wxGLCanvasBase::SetColour(const wxString& colour) |
| dc3065a5 VZ |
66 | { |
| 67 | wxColour col = wxTheColourDatabase->Find(colour); | |
| 68 | if ( !col.Ok() ) | |
| 69 | return false; | |
| 70 | ||
| 71 | GLboolean isRGBA; | |
| 72 | glGetBooleanv(GL_RGBA_MODE, &isRGBA); | |
| 73 | if ( isRGBA ) | |
| 74 | { | |
| 75 | glColor3f(col.Red() / 256., col.Green() / 256., col.Blue() / 256.); | |
| 76 | } | |
| 77 | else // indexed colour | |
| 78 | { | |
| 79 | GLint pix = GetColourIndex(col); | |
| 80 | if ( pix == -1 ) | |
| 81 | { | |
| 82 | wxLogError(_("Failed to allocate colour for OpenGL")); | |
| 83 | return false; | |
| 84 | } | |
| 85 | ||
| 86 | glIndexi(pix); | |
| 87 | } | |
| 88 | ||
| 89 | return true; | |
| 90 | } | |
| 91 | ||
| 92 | wxGLCanvasBase::~wxGLCanvasBase() | |
| 93 | { | |
| 94 | #if WXWIN_COMPATIBILITY_2_8 | |
| 95 | delete m_glContext; | |
| 96 | #endif // WXWIN_COMPATIBILITY_2_8 | |
| 97 | } | |
| 98 | ||
| 99 | #if WXWIN_COMPATIBILITY_2_8 | |
| 100 | ||
| 101 | wxGLContext *wxGLCanvasBase::GetContext() const | |
| 102 | { | |
| 103 | return m_glContext; | |
| 104 | } | |
| 105 | ||
| 106 | void wxGLCanvasBase::SetCurrent() | |
| 107 | { | |
| 108 | if ( m_glContext ) | |
| 109 | SetCurrent(*m_glContext); | |
| 110 | } | |
| 111 | ||
| 112 | void wxGLCanvasBase::OnSize(wxSizeEvent& WXUNUSED(event)) | |
| 113 | { | |
| 114 | } | |
| 115 | ||
| 116 | #endif // WXWIN_COMPATIBILITY_2_8 | |
| 117 | ||
| c39d2e0a VZ |
118 | /* static */ |
| 119 | bool wxGLCanvasBase::IsExtensionInList(const char *list, const char *extension) | |
| 120 | { | |
| 121 | for ( const char *p = list; *p; p++ ) | |
| 122 | { | |
| 123 | // advance up to the next possible match | |
| 124 | p = wxStrstr(p, extension); | |
| 125 | if ( !p ) | |
| 126 | break; | |
| 127 | ||
| 128 | // check that the extension appears at the beginning/ending of the list | |
| 129 | // or is preceded/followed by a space to avoid mistakenly finding | |
| 130 | // "glExtension" in a list containing some "glFunkyglExtension" | |
| 131 | if ( (p == list || p[-1] == ' ') ) | |
| 132 | { | |
| 133 | char c = p[strlen(extension)]; | |
| 134 | if ( c == '\0' || c == ' ' ) | |
| 135 | return true; | |
| 136 | } | |
| 137 | } | |
| 138 | ||
| 139 | return false; | |
| 140 | } | |
| 141 | ||
| dc3065a5 VZ |
142 | #endif // wxUSE_GLCANVAS |
| 143 |