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     // draw a (vertical) sash
  63     //
  64     // VZ: doesn't work -- nothing is shown on screen, why?
  65 #if 0
  66     virtual void DrawSplitterSash(wxWindow *win,
  67                                   wxDC& dc,
  68                                   const wxSize& size,
  69                                   wxCoord position);
  70 #endif // 0
  71 };
  72
  73 // ============================================================================
  74 // implementation
  75 // ============================================================================
  76
  77 /* static */
  78 wxRendererNative& wxRendererNative::Get()
  79 {
  80     static wxRendererGTK s_rendererGTK;
  81
  82     return s_rendererGTK;
  83 }
  84
  85 void
  86 wxRendererGTK::DrawHeaderButton(wxWindow *win,
  87                                 wxDC& dc,
  88                                 const wxRect& rect,
  89                                 int flags)
  90 {
  91     gtk_paint_box
  92     (
  93         win->m_wxwindow->style,
  94         GTK_PIZZA(win->m_wxwindow)->bin_window,
  95         flags & wxCONTROL_DISABLED ? GTK_STATE_INSENSITIVE : GTK_STATE_NORMAL,
  96         GTK_SHADOW_OUT,
  97         (GdkRectangle*) NULL,
  98         win->m_wxwindow,
  99         (char *)"button", // const_cast
 100         dc.XLOG2DEV(rect.x) - 1, rect.y - 1, rect.width + 2, rect.height + 2
 101     );
 102 }
 103
 104 #ifdef __WXGTK20__
 105
 106 // draw a ">" or "v" button
 107 //
 108 // TODO: isn't there a GTK function to draw it?
 109 void
 110 wxRendererGTK::DrawTreeItemButton(wxWindow* WXUNUSED(win),
 111                                   wxDC& dc, const wxRect& rect, int flags)
 112 {
 113     dc.SetBrush(wxBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT),
 114                         wxSOLID));
 115     dc.SetPen(*wxBLACK_PEN);
 116     wxPoint button[3];
 117
 118     const wxCoord xMiddle = rect.x + rect.width/2;
 119     const wxCoord yMiddle = rect.y + rect.height/2;
 120
 121     if ( flags & wxCONTROL_EXPANDED )
 122     {
 123         button[0].x = rect.GetLeft();
 124         button[0].y = yMiddle - 2;
 125         button[1].x = rect.GetRight();
 126         button[1].y = yMiddle - 2;
 127         button[2].x = xMiddle;
 128         button[2].y = yMiddle + 3;
 129     }
 130     else // collapsed
 131     {
 132         button[0].y = rect.GetBottom();
 133         button[0].x = xMiddle - 2;
 134         button[1].y = rect.GetTop();
 135         button[1].x = xMiddle - 2;
 136         button[2].y = yMiddle;
 137         button[2].x = xMiddle + 3;
 138     }
 139
 140     dc.DrawPolygon(3, button);
 141 }
 142
 143 #endif // GTK 2.0
 144
 145 #if 0
 146
 147 // draw a (vertical) sash
 148 void
 149 wxRendererGTK::DrawSplitterSash(wxWindow *win,
 150                                 wxDC& dc,
 151                                 const wxSize& size,
 152                                 wxCoord position)
 153 {
 154     if ( !win->m_wxwindow->window )
 155     {
 156         // VZ: this happens on startup -- why?
 157         return;
 158     }
 159
 160     gtk_paint_vline
 161     (
 162         win->m_wxwindow->style,
 163         win->m_wxwindow->window,
 164         GTK_STATE_NORMAL,
 165         (GdkRectangle *)NULL,
 166         win->m_wxwindow,
 167         (char *)"vpaned", // const_cast
 168         0, size.y, position + 3
 169     );
 170
 171     gtk_paint_box
 172     (
 173         win->m_wxwindow->style,
 174         win->m_wxwindow->window,
 175         GTK_STATE_NORMAL,
 176         GTK_SHADOW_OUT,
 177         (GdkRectangle *)NULL,
 178         win->m_wxwindow,
 179         (char *)"paned", // const_cast
 180         position, 5, 10, 10
 181     );
 182 }
 183
 184 #endif // 0
 185