account for scroll offset correctly in the mouse event handler

[wxWidgets.git] / include / wx / glcanvas.h

diff --git a/include/wx/glcanvas.h b/include/wx/glcanvas.h
index b4f2bac6b63755a310f3a6428fe8ded70c9506e8..4722a99a9483ae9b6b3effd7288e4b719c576865 100644 (file)
--- a/include/wx/glcanvas.h
+++ b/include/wx/glcanvas.h
@@ -16,43 +16,204 @@
 
 #if wxUSE_GLCANVAS
 
 
 #if wxUSE_GLCANVAS
 

+#include "wx/app.h"
+#include "wx/palette.h"
+#include "wx/window.h"
+
+class WXDLLIMPEXP_FWD_GL wxGLCanvas;
+class WXDLLIMPEXP_FWD_GL wxGLContext;
+
+// ----------------------------------------------------------------------------
+// Constants for attributes list
+// ----------------------------------------------------------------------------
+
+// Notice that not all implementation support options such as stereo, auxiliary
+// buffers, alpha channel, and accumulator buffer, use IsDisplaySupported() to
+// check for individual attributes support.
+enum
+{
+    WX_GL_RGBA = 1,        // use true color palette (on if no attrs specified)
+    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 double buffering (on if no attrs specified)
+    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)
+    WX_GL_SAMPLE_BUFFERS,  // 1 for multisampling support (antialiasing)
+    WX_GL_SAMPLES          // 4 for 2x2 antialising supersampling on most graphics cards
+};
+

 #define wxGLCanvasName _T("GLCanvas")
 
 #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 bool 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
+    bool SetCurrent(const wxGLContext& context) const;
+
+    // flush the back buffer (if we have it)
+    virtual bool SwapBuffers() = 0;
+
+
+    // accessors
+    // ---------
+
+    // check if the given attributes are supported without creating a canvas
+    static bool IsDisplaySupported(const int *attribList);
+
+    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 wxString& colour);
+
+
+    // return true if the extension with given name is supported
+    //
+    // notice that while this function is implemented for all of GLX, WGL and
+    // AGL the extensions names are usually not the same for different
+    // platforms and so the code using it still usually uses conditional
+    // compilation
+    static bool IsExtensionSupported(const char *extension);
+
+    // 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; }
+
+    // check if the given extension name is present in the space-separated list
+    // of extensions supported by the current implementation such as returned
+    // by glXQueryExtensionsString() or glGetString(GL_EXTENSIONS)
+    static bool IsExtensionInList(const char *list, const char *extension);
+
+    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;
+};
+

 #if defined(__WXMSW__)
 #if defined(__WXMSW__)

-#include "wx/msw/glcanvas.h"
-#elif defined(__WXMOTIF__)
-#include "wx/x11/glcanvas.h"
+    #include "wx/msw/glcanvas.h"
+#elif defined(__WXMOTIF__) || defined(__WXX11__)
+    #include "wx/x11/glcanvas.h"

 #elif defined(__WXGTK20__)
 #elif defined(__WXGTK20__)

-#include "wx/gtk/glcanvas.h"
+    #include "wx/gtk/glcanvas.h"

 #elif defined(__WXGTK__)
 #elif defined(__WXGTK__)

-#include "wx/gtk1/glcanvas.h"
-#elif defined(__WXX11__)
-#include "wx/x11/glcanvas.h"
+    #include "wx/gtk1/glcanvas.h"

 #elif defined(__WXMAC__)
 #elif defined(__WXMAC__)

-#include "wx/mac/glcanvas.h"
+    #include "wx/osx/glcanvas.h"

 #elif defined(__WXCOCOA__)
 #elif defined(__WXCOCOA__)

-#include "wx/cocoa/glcanvas.h"
-#elif defined(__WXPM__)
-#include "wx/os2/glcanvas.h"
+    #include "wx/cocoa/glcanvas.h"
+#else
+    #error "wxGLCanvas not supported in this wxWidgets port"

 #endif
 
 #endif
 

-#include "wx/app.h"
-class WXDLLIMPEXP_GL wxGLApp : public wxApp
+// wxMac and wxMSW don't need anything extra in wxGLAppBase, so declare it here
+#ifndef wxGL_APP_DEFINED
+
+class WXDLLIMPEXP_GL wxGLApp : public wxGLAppBase

 {
 public:
 {
 public:

-    wxGLApp() : wxApp() { }
-    virtual ~wxGLApp();
+    wxGLApp() : wxGLAppBase() { }

 
 

-    // 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.
-    bool InitGLVisual(int *attribList);
+    virtual bool InitGLVisual(const int *attribList);

 
 private:
     DECLARE_DYNAMIC_CLASS(wxGLApp)
 };
 
 
 private:
     DECLARE_DYNAMIC_CLASS(wxGLApp)
 };
 

-#endif
-    // wxUSE_GLCANVAS
-#endif
-    // _WX_GLCANVAS_H_BASE_
+#endif // !wxGL_APP_DEFINED
+
+#endif // wxUSE_GLCANVAS
+
+#endif // _WX_GLCANVAS_H_BASE_