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 #ifndef WX_PRECOMP
  28     #include "wx/window.h"
  29 #endif //WX_PRECOMP
  30
  31 #include "wx/clrpicker.h"
  32 #include "wx/colordlg.h"
  33
  34
  35 // ============================================================================
  36 // implementation
  37 // ============================================================================
  38
  39 #if wxUSE_COLOURPICKERCTRL
  40
  41 wxColourData wxGenericColourButton::ms_data;
  42 IMPLEMENT_DYNAMIC_CLASS(wxGenericColourButton, wxButton)
  43
  44 // ----------------------------------------------------------------------------
  45 // wxGenericColourButton
  46 // ----------------------------------------------------------------------------
  47
  48 bool wxGenericColourButton::Create( wxWindow *parent, wxWindowID id,
  49                         const wxColour &col, const wxPoint &pos,
  50                         const wxSize &size, long style,
  51                         const wxValidator& validator, const wxString &name)
  52 {
  53     // create this button
  54     if (!wxButton::Create( parent, id, wxEmptyString, pos,
  55                            size, style, validator, name ))
  56     {
  57         wxFAIL_MSG( wxT("wxGenericColourButton creation failed") );
  58         return false;
  59     }
  60
  61     // and handle user clicks on it
  62     Connect(wxEVT_COMMAND_BUTTON_CLICKED,
  63             wxCommandEventHandler(wxGenericColourButton::OnButtonClick),
  64             NULL, this);
  65
  66     m_colour = col;
  67     UpdateColour();
  68     InitColourData();
  69
  70     return true;
  71 }
  72
  73 void wxGenericColourButton::InitColourData()
  74 {
  75     ms_data.SetChooseFull(true);
  76     unsigned char grey = 0;
  77     for (int i = 0; i < 16; i++, grey += 16)
  78     {
  79         // fill with grey tones the custom colors palette
  80         wxColour colour(grey, grey, grey);
  81         ms_data.SetCustomColour(i, colour);
  82     }
  83 }
  84
  85 void wxGenericColourButton::OnButtonClick(wxCommandEvent& WXUNUSED(ev))
  86 {
  87     // update the wxColouData to be shown in the the dialog
  88     ms_data.SetColour(m_colour);
  89
  90     // create the colour dialog and display it
  91     wxColourDialog dlg(this, &ms_data);
  92     if (dlg.ShowModal() == wxID_OK)
  93     {
  94         ms_data = dlg.GetColourData();
  95         SetColour(ms_data.GetColour());
  96
  97         // fire an event
  98         wxColourPickerEvent event(this, GetId(), m_colour);
  99         GetEventHandler()->ProcessEvent(event);
 100     }
 101 }
 102
 103 void wxGenericColourButton::UpdateColour()
 104 {
 105     if ( !m_colour.Ok() )
 106     {
 107         if ( HasFlag(wxCLRP_SHOW_LABEL) )
 108             SetLabel(wxEmptyString);
 109         return;
 110     }
 111
 112     // some combinations of the fg/bg colours may be unreadable, so we invert
 113     // the colour to make sure fg colour is different enough from m_colour
 114     wxColour colFg(~m_colour.Red(), ~m_colour.Green(), ~m_colour.Blue());
 115
 116     SetForegroundColour(colFg);
 117     SetBackgroundColour(m_colour);
 118
 119     if ( HasFlag(wxCLRP_SHOW_LABEL) )
 120         SetLabel(m_colour.GetAsString(wxC2S_HTML_SYNTAX));
 121 }
 122
 123 #endif      // wxUSE_COLOURPICKERCTRL