src/gtk/renderer.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        gtk/renderer.cpp
   3 // Purpose:     implementation of wxRendererNative for wxGTK
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     20.07.2003
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28 #endif // WX_PRECOMP
  29
  30 #include <gtk/gtk.h>
  31 #include "wx/gtk/win_gtk.h"
  32
  33 #include "wx/window.h"
  34 #include "wx/dc.h"
  35 #include "wx/renderer.h"
  36
  37 // ----------------------------------------------------------------------------
  38 // wxRendererGTK: our wxRendererNative implementation
  39 // ----------------------------------------------------------------------------
  40
  41 class WXDLLEXPORT wxRendererGTK : public wxDelegateRendererNative
  42 {
  43 public:
  44     // draw the header control button (used by wxListCtrl)
  45     virtual void DrawHeaderButton(wxWindow *win,
  46                                   wxDC& dc,
  47                                   const wxRect& rect,
  48                                   int flags = 0);
  49
  50 #ifdef __WXGTK20__
  51     // draw the expanded/collapsed icon for a tree control item
  52     virtual void DrawTreeItemButton(wxWindow *win,
  53                                     wxDC& dc,
  54                                     const wxRect& rect,
  55                                     int flags = 0);
  56 #endif // GTK 2.0
  57
  58 };
  59
  60 // ============================================================================
  61 // implementation
  62 // ============================================================================
  63
  64 /* static */
  65 wxRendererNative& wxRendererNative::Get()
  66 {
  67     static wxRendererGTK s_rendererGTK;
  68
  69     return s_rendererGTK;
  70 }
  71
  72 void
  73 wxRendererGTK::DrawHeaderButton(wxWindow *win,
  74                                 wxDC& dc,
  75                                 const wxRect& rect,
  76                                 int flags)
  77 {
  78     gtk_paint_box
  79     (
  80         win->m_wxwindow->style,
  81         GTK_PIZZA(win->m_wxwindow)->bin_window,
  82         flags & wxCONTROL_DISABLED ? GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL,
  83         GTK_SHADOW_OUT,
  84         (GdkRectangle*) NULL,
  85         win->m_wxwindow,
  86         (char *)"button", // const_cast
  87         dc.XLOG2DEV(rect.x) - 1, rect.y - 1, rect.width + 2, rect.height + 2
  88     );
  89 }
  90
  91 #ifdef __WXGTK20__
  92
  93 // draw a ">" or "v" button
  94 //
  95 // TODO: isn't there a GTK function to draw it?
  96 void
  97 wxRendererGTK::DrawTreeItemButton(wxDC& dc, const wxRect& rect, int flags)
  98 {
  99     dc.SetBrush(*m_hilightBrush);
 100     dc.SetPen(*wxBLACK_PEN);
 101     wxPoint button[3];
 102
 103     const wxCoord xMiddle = rect.x + rect.width/2;
 104     const wxCoord yMiddle = rect.y + rect.height/2;
 105
 106     if ( flags & wxCONTROL_EXPANDED )
 107     {
 108         button[0].x = rect.GetLeft();
 109         button[0].y = yMiddle - 2;
 110         button[1].x = rect.GetRight();
 111         button[1].y = yMiddle - 2;
 112         button[2].x = xMiddle;
 113         button[2].y = yMiddle + 3;
 114     }
 115     else // collapsed
 116     {
 117         button[0].y = rect.GetBottom();
 118         button[0].x = xMiddle - 2;
 119         button[1].y = rect.GetTop();
 120         button[1].x = xMiddle - 2;
 121         button[2].y = yMiddle;
 122         button[2].x = xMiddle + 3;
 123     }
 124
 125     dc.DrawPolygon(3, button);
 126 }
 127
 128 #endif // GTK 2.0
 129
 130