+#include "wx/defs.h"
+
+#if wxUSE_GLCANVAS
+
+#include "wx/app.h"
+#include "wx/palette.h"
+#include "wx/window.h"
+
+class WXDLLIMPEXP_GL wxGLCanvas;
+class WXDLLIMPEXP_GL wxGLContext;
+
+// ----------------------------------------------------------------------------
+// Constants for attributes list
+// ----------------------------------------------------------------------------
+
+// The generic OpenGL implementation doesn't support most of these options,
+// such as stereo, auxiliary buffers, alpha channel, and accumulator buffer.
+// Other implementations may actually support them.
+enum
+{
+ WX_GL_RGBA=1, /* use true color palette */
+ WX_GL_BUFFER_SIZE, /* bits for buffer if not WX_GL_RGBA */
+ WX_GL_LEVEL, /* 0 for main buffer, >0 for overlay, <0 for underlay */
+ WX_GL_DOUBLEBUFFER, /* use doublebuffer */
+ WX_GL_STEREO, /* use stereoscopic display */
+ WX_GL_AUX_BUFFERS, /* number of auxiliary buffers */
+ WX_GL_MIN_RED, /* use red buffer with most bits (> MIN_RED bits) */
+ WX_GL_MIN_GREEN, /* use green buffer with most bits (> MIN_GREEN bits) */
+ WX_GL_MIN_BLUE, /* use blue buffer with most bits (> MIN_BLUE bits) */
+ WX_GL_MIN_ALPHA, /* use alpha buffer with most bits (> MIN_ALPHA bits) */
+ WX_GL_DEPTH_SIZE, /* bits for Z-buffer (0,16,32) */
+ WX_GL_STENCIL_SIZE, /* bits for stencil buffer */
+ WX_GL_MIN_ACCUM_RED, /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
+ WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
+ WX_GL_MIN_ACCUM_BLUE, /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
+ WX_GL_MIN_ACCUM_ALPHA /* use alpha buffer with most bits (> MIN_ACCUM_ALPHA bits) */
+};
+
+#define wxGLCanvasName _T("GLCanvas")
+
+// ----------------------------------------------------------------------------
+// wxGLContextBase: OpenGL rendering context
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLContextBase : public wxObject
+{
+public:
+ /*
+ The derived class should provide a ctor with this signature:
+
+ wxGLContext(wxGLCanvas *win, const wxGLContext *other = NULL);
+ */
+
+ // set this context as the current one
+ virtual void SetCurrent(const wxGLCanvas& win) const = 0;
+};
+
+// ----------------------------------------------------------------------------
+// wxGLCanvasBase: window which can be used for OpenGL rendering
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLCanvasBase : public wxWindow
+{
+public:
+ // default ctor doesn't initialize the window, use Create() later
+ wxGLCanvasBase();
+
+ virtual ~wxGLCanvasBase();
+
+
+ /*
+ The derived class should provide a ctor with this signature:
+
+ wxGLCanvas(wxWindow *parent,
+ wxWindowID id = wxID_ANY,
+ int* attribList = 0,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = 0,
+ const wxString& name = wxGLCanvasName,
+ const wxPalette& palette = wxNullPalette);
+ */
+
+ // operations
+ // ----------
+
+ // set the given context associated with this window as the current one
+ void SetCurrent(const wxGLContext& context) const;
+
+ // flush the back buffer (if we have it)
+ virtual void SwapBuffers() = 0;
+
+
+ // accessors
+ // ---------
+
+ const wxPalette *GetPalette() const { return &m_palette; }
+
+ // miscellaneous helper functions
+ // ------------------------------
+
+ // call glcolor() for the colour with the given name, return false if
+ // colour not found
+ bool SetColour(const wxChar *colour);
+
+
+
+ // deprecated methods using the implicit wxGLContext
+#if WXWIN_COMPATIBILITY_2_8
+ wxDEPRECATED( wxGLContext* GetContext() const );
+
+ wxDEPRECATED( void SetCurrent() );
+
+ wxDEPRECATED( void OnSize(wxSizeEvent& event) );
+#endif // WXWIN_COMPATIBILITY_2_8
+
+#ifdef __WXUNIVERSAL__
+ // resolve the conflict with wxWindowUniv::SetCurrent()
+ virtual bool SetCurrent(bool doit) { return wxWindow::SetCurrent(doit); };
+#endif
+
+protected:
+ // override this to implement SetColour() in GL_INDEX_MODE
+ // (currently only implemented in wxX11 and wxMotif ports)
+ virtual int GetColourIndex(const wxColour& WXUNUSED(col)) { return -1; }
+
+ // create default palette if we're not using RGBA mode
+ // (not supported in most ports)
+ virtual wxPalette CreateDefaultPalette() { return wxNullPalette; }
+
+
+ wxPalette m_palette;
+
+#if WXWIN_COMPATIBILITY_2_8
+ wxGLContext *m_glContext;
+#endif // WXWIN_COMPATIBILITY_2_8
+};
+
+// ----------------------------------------------------------------------------
+// wxGLApp: a special wxApp subclass for OpenGL applications which must be used
+// to select a visual compatible with the given attributes
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_GL wxGLAppBase : public wxApp
+{
+public:
+ wxGLAppBase() : wxApp() { }
+
+ // use this in the constructor of the user-derived wxGLApp class to
+ // determine if an OpenGL rendering context with these attributes
+ // is available - returns true if so, false if not.
+ virtual bool InitGLVisual(const int *attribList) = 0;
+};
+
projects / wxWidgets.git / blobdiff