src/generic/clrpickerg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/clrpickerg.cpp
   3 // Purpose:     wxGenericColourButton class implementation
   4 // Author:      Francesco Montorsi (readapted code written by Vadim Zeitlin)
   5 // Modified by:
   6 // Created:     15/04/2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Vadim Zeitlin, Francesco Montorsi
   9 // Licence:     wxWindows licence
  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 #if wxUSE_COLOURPICKERCTRL
  28
  29 #include "wx/clrpicker.h"
  30 #include "wx/colordlg.h"
  31 #include "wx/dcmemory.h"
  32
  33
  34 // ============================================================================
  35 // implementation
  36 // ============================================================================
  37
  38 wxColourData wxGenericColourButton::ms_data;
  39 IMPLEMENT_DYNAMIC_CLASS(wxGenericColourButton, wxBitmapButton)
  40
  41 // ----------------------------------------------------------------------------
  42 // wxGenericColourButton
  43 // ----------------------------------------------------------------------------
  44
  45 bool wxGenericColourButton::Create( wxWindow *parent, wxWindowID id,
  46                         const wxColour &col, const wxPoint &pos,
  47                         const wxSize &size, long style,
  48                         const wxValidator& validator, const wxString &name)
  49 {
  50     m_bitmap = wxBitmap( 60, 13 );
  51
  52     // create this button
  53     if (!wxBitmapButton::Create( parent, id, m_bitmap, pos,
  54                            size, style | wxBU_AUTODRAW, validator, name ))
  55     {
  56         wxFAIL_MSG( wxT("wxGenericColourButton creation failed") );
  57         return false;
  58     }
  59
  60     // and handle user clicks on it
  61     Connect(GetId(), wxEVT_COMMAND_BUTTON_CLICKED,
  62             wxCommandEventHandler(wxGenericColourButton::OnButtonClick),
  63             NULL, this);
  64
  65     m_colour = col;
  66     UpdateColour();
  67     InitColourData();
  68
  69     return true;
  70 }
  71
  72 void wxGenericColourButton::InitColourData()
  73 {
  74     ms_data.SetChooseFull(true);
  75     unsigned char grey = 0;
  76     for (int i = 0; i < 16; i++, grey += 16)
  77     {
  78         // fill with grey tones the custom colors palette
  79         wxColour colour(grey, grey, grey);
  80         ms_data.SetCustomColour(i, colour);
  81     }
  82 }
  83
  84 void wxGenericColourButton::OnButtonClick(wxCommandEvent& WXUNUSED(ev))
  85 {
  86     // update the wxColouData to be shown in the the dialog
  87     ms_data.SetColour(m_colour);
  88
  89     // create the colour dialog and display it
  90     wxColourDialog dlg(this, &ms_data);
  91     if (dlg.ShowModal() == wxID_OK)
  92     {
  93         ms_data = dlg.GetColourData();
  94         SetColour(ms_data.GetColour());
  95
  96         // fire an event
  97         wxColourPickerEvent event(this, GetId(), m_colour);
  98         GetEventHandler()->ProcessEvent(event);
  99     }
 100 }
 101
 102 void wxGenericColourButton::UpdateColour()
 103 {
 104     wxMemoryDC dc(m_bitmap);
 105     dc.SetPen( *wxTRANSPARENT_PEN );
 106     dc.SetBrush( wxBrush(m_colour) );
 107     dc.DrawRectangle( 0,0,m_bitmap.GetWidth(),m_bitmap.GetHeight() );
 108
 109     if ( HasFlag(wxCLRP_SHOW_LABEL) )
 110     {
 111         wxColour col( ~m_colour.Red(), ~m_colour.Green(), ~m_colour.Blue() );
 112         dc.SetTextForeground( col );
 113         dc.SetFont( GetFont() );
 114         dc.DrawText( m_colour.GetAsString(wxC2S_HTML_SYNTAX), 0, 0 );
 115     }
 116
 117     dc.SelectObject( wxNullBitmap );
 118     SetBitmapLabel( m_bitmap );
 119 }
 120
 121 wxSize wxGenericColourButton::DoGetBestSize() const
 122 {
 123     wxSize sz(wxBitmapButton::DoGetBestSize());
 124 #ifdef __WXMAC__
 125     sz.y += 6;
 126 #else
 127     sz.y += 2;
 128 #endif
 129     sz.x += 30;
 130     if ( HasFlag(wxCLRP_SHOW_LABEL) )
 131         return sz;
 132
 133     // if we have no label, then make this button a square
 134     // (like e.g. native GTK version of this control) ???
 135     // sz.SetWidth(sz.GetHeight());
 136     return sz;
 137 }
 138
 139 #endif      // wxUSE_COLOURPICKERCTRL