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 #ifdef __WXGTK20__
  38     #include "wx/settings.h"
  39 #endif // GTK 2.0
  40
  41 // ----------------------------------------------------------------------------
  42 // wxRendererGTK: our wxRendererNative implementation
  43 // ----------------------------------------------------------------------------
  44
  45 class WXDLLEXPORT wxRendererGTK : public wxDelegateRendererNative
  46 {
  47 public:
  48     // draw the header control button (used by wxListCtrl)
  49     virtual void DrawHeaderButton(wxWindow *win,
  50                                   wxDC& dc,
  51                                   const wxRect& rect,
  52                                   int flags = 0);
  53
  54 #ifdef __WXGTK20__
  55     // draw the expanded/collapsed icon for a tree control item
  56     virtual void DrawTreeItemButton(wxWindow *win,
  57                                     wxDC& dc,
  58                                     const wxRect& rect,
  59                                     int flags = 0);
  60 #endif // GTK 2.0
  61
  62 };
  63
  64 // ============================================================================
  65 // implementation
  66 // ============================================================================
  67
  68 /* static */
  69 wxRendererNative& wxRendererNative::Get()
  70 {
  71     static wxRendererGTK s_rendererGTK;
  72
  73     return s_rendererGTK;
  74 }
  75
  76 void
  77 wxRendererGTK::DrawHeaderButton(wxWindow *win,
  78                                 wxDC& dc,
  79                                 const wxRect& rect,
  80                                 int flags)
  81 {
  82     gtk_paint_box
  83     (
  84         win->m_wxwindow->style,
  85         GTK_PIZZA(win->m_wxwindow)->bin_window,
  86         flags & wxCONTROL_DISABLED ? GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL,
  87         GTK_SHADOW_OUT,
  88         (GdkRectangle*) NULL,
  89         win->m_wxwindow,
  90         (char *)"button", // const_cast
  91         dc.XLOG2DEV(rect.x) - 1, rect.y - 1, rect.width + 2, rect.height + 2
  92     );
  93 }
  94
  95 #ifdef __WXGTK20__
  96
  97 // draw a ">" or "v" button
  98 //
  99 // TODO: isn't there a GTK function to draw it?
 100 void
 101 wxRendererGTK::DrawTreeItemButton(wxWindow* WXUNUSED(win),
 102                                   wxDC& dc, const wxRect& rect, int flags)
 103 {
 104     dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT),
 105                         wxSOLID));
 106     dc.SetPen(*wxBLACK_PEN);
 107     wxPoint button[3];
 108
 109     const wxCoord xMiddle = rect.x + rect.width/2;
 110     const wxCoord yMiddle = rect.y + rect.height/2;
 111
 112     if ( flags & wxCONTROL_EXPANDED )
 113     {
 114         button[0].x = rect.GetLeft();
 115         button[0].y = yMiddle - 2;
 116         button[1].x = rect.GetRight();
 117         button[1].y = yMiddle - 2;
 118         button[2].x = xMiddle;
 119         button[2].y = yMiddle + 3;
 120     }
 121     else // collapsed
 122     {
 123         button[0].y = rect.GetBottom();
 124         button[0].x = xMiddle - 2;
 125         button[1].y = rect.GetTop();
 126         button[1].x = xMiddle - 2;
 127         button[2].y = yMiddle;
 128         button[2].x = xMiddle + 3;
 129     }
 130
 131     dc.DrawPolygon(3, button);
 132 }
 133
 134 #endif // GTK 2.0
 135
 136