src/msw/colordlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/colordlg.cpp
   3 // Purpose:     wxColourDialog class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_COLOURDLG && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
  27
  28 #include "wx/colordlg.h"
  29 #include "wx/modalhook.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/msw/wrapcdlg.h"
  33     #include <stdio.h>
  34     #include "wx/colour.h"
  35     #include "wx/gdicmn.h"
  36     #include "wx/utils.h"
  37     #include "wx/math.h"
  38 #endif
  39
  40 #include "wx/msw/private.h"
  41
  42 #include <stdlib.h>
  43 #include <string.h>
  44
  45 // ----------------------------------------------------------------------------
  46 // globals
  47 // ----------------------------------------------------------------------------
  48
  49 // standard colors dialog size for the Windows systems
  50 // this is ok if color dialog created with standart color
  51 // and "Define Custom Colors" extension not shown
  52 static wxRect gs_rectDialog(0, 0, 222, 324);
  53
  54 // ----------------------------------------------------------------------------
  55 // wxWin macros
  56 // ----------------------------------------------------------------------------
  57
  58 IMPLEMENT_DYNAMIC_CLASS(wxColourDialog, wxDialog)
  59
  60 // ============================================================================
  61 // implementation
  62 // ============================================================================
  63
  64 // ----------------------------------------------------------------------------
  65 // colour dialog hook proc
  66 // ----------------------------------------------------------------------------
  67
  68 UINT_PTR CALLBACK
  69 wxColourDialogHookProc(HWND hwnd,
  70                        UINT uiMsg,
  71                        WPARAM WXUNUSED(wParam),
  72                        LPARAM lParam)
  73 {
  74     if ( uiMsg == WM_INITDIALOG )
  75     {
  76         CHOOSECOLOR *pCC = (CHOOSECOLOR *)lParam;
  77         wxColourDialog * const
  78             dialog = reinterpret_cast<wxColourDialog *>(pCC->lCustData);
  79
  80         const wxString title = dialog->GetTitle();
  81         if ( !title.empty() )
  82             ::SetWindowText(hwnd, title.t_str());
  83
  84         dialog->MSWOnInitDone((WXHWND)hwnd);
  85     }
  86
  87     return 0;
  88 }
  89
  90 // ----------------------------------------------------------------------------
  91 // wxColourDialog
  92 // ----------------------------------------------------------------------------
  93
  94 void wxColourDialog::Init()
  95 {
  96     m_movedWindow = false;
  97     m_centreDir = 0;
  98
  99     // reset to zero, otherwise the wx routines won't size the window the
 100     // second time the dialog is shown, because they would believe it already
 101     // has the requested size/position
 102     gs_rectDialog.x =
 103     gs_rectDialog.y = 0;
 104 }
 105
 106 bool wxColourDialog::Create(wxWindow *parent, wxColourData *data)
 107 {
 108     m_parent = parent;
 109     if (data)
 110         m_colourData = *data;
 111
 112     return true;
 113 }
 114
 115 int wxColourDialog::ShowModal()
 116 {
 117     WX_HOOK_MODAL_DIALOG();
 118
 119     // initialize the struct used by Windows
 120     CHOOSECOLOR chooseColorStruct;
 121     memset(&chooseColorStruct, 0, sizeof(CHOOSECOLOR));
 122
 123     size_t i;
 124
 125     // and transfer data from m_colourData to it
 126     COLORREF custColours[16];
 127     for ( i = 0; i < WXSIZEOF(custColours); i++ )
 128     {
 129         if ( m_colourData.GetCustomColour(i).IsOk() )
 130             custColours[i] = wxColourToRGB(m_colourData.GetCustomColour(i));
 131         else
 132             custColours[i] = RGB(255,255,255);
 133     }
 134
 135     chooseColorStruct.lStructSize = sizeof(CHOOSECOLOR);
 136     if ( m_parent )
 137         chooseColorStruct.hwndOwner = GetHwndOf(m_parent);
 138     chooseColorStruct.rgbResult = wxColourToRGB(m_colourData.GetColour());
 139     chooseColorStruct.lpCustColors = custColours;
 140
 141     chooseColorStruct.Flags = CC_RGBINIT | CC_ENABLEHOOK;
 142     chooseColorStruct.lCustData = (LPARAM)this;
 143     chooseColorStruct.lpfnHook = wxColourDialogHookProc;
 144
 145     if ( m_colourData.GetChooseFull() )
 146         chooseColorStruct.Flags |= CC_FULLOPEN;
 147
 148     // do show the modal dialog
 149     if ( !::ChooseColor(&chooseColorStruct) )
 150     {
 151         // 0 error means the dialog was simply cancelled, i.e. no real error
 152         // occurred
 153         const DWORD err = CommDlgExtendedError();
 154         if ( err )
 155         {
 156             wxLogError(_("Colour selection dialog failed with error %0lx."), err);
 157         }
 158
 159         return wxID_CANCEL;
 160     }
 161
 162
 163     // transfer the values chosen by user back into m_colourData
 164     for ( i = 0; i < WXSIZEOF(custColours); i++ )
 165     {
 166       wxRGBToColour(m_colourData.m_custColours[i], custColours[i]);
 167     }
 168
 169     wxRGBToColour(m_colourData.GetColour(), chooseColorStruct.rgbResult);
 170
 171     // this doesn't seem to work (contrary to what MSDN implies) on current
 172     // Windows versions: CC_FULLOPEN is never set on return if it wasn't
 173     // initially set and vice versa
 174     //m_colourData.SetChooseFull((chooseColorStruct.Flags & CC_FULLOPEN) != 0);
 175
 176     return wxID_OK;
 177 }
 178
 179 // ----------------------------------------------------------------------------
 180 // title
 181 // ----------------------------------------------------------------------------
 182
 183 void wxColourDialog::SetTitle(const wxString& title)
 184 {
 185     m_title = title;
 186 }
 187
 188 wxString wxColourDialog::GetTitle() const
 189 {
 190     return m_title;
 191 }
 192
 193 // ----------------------------------------------------------------------------
 194 // position/size
 195 // ----------------------------------------------------------------------------
 196
 197 void wxColourDialog::DoGetPosition(int *x, int *y) const
 198 {
 199     if ( x )
 200         *x = gs_rectDialog.x;
 201     if ( y )
 202         *y = gs_rectDialog.y;
 203 }
 204
 205 void wxColourDialog::DoCentre(int dir)
 206 {
 207     m_centreDir = dir;
 208
 209     // it's unnecessary to do anything else at this stage as we'll redo it in
 210     // MSWOnInitDone() anyhow
 211 }
 212
 213 void wxColourDialog::DoMoveWindow(int x, int y, int WXUNUSED(w), int WXUNUSED(h))
 214 {
 215     gs_rectDialog.x = x;
 216     gs_rectDialog.y = y;
 217
 218     // our HWND is only set when we're called from MSWOnInitDone(), test if
 219     // this is the case
 220     HWND hwnd = GetHwnd();
 221     if ( hwnd )
 222     {
 223         // size of the dialog can't be changed because the controls are not
 224         // laid out correctly then
 225        ::SetWindowPos(hwnd, HWND_TOP, x, y, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
 226     }
 227     else // just remember that we were requested to move the window
 228     {
 229         m_movedWindow = true;
 230
 231         // if Centre() had been called before, it shouldn't be taken into
 232         // account now
 233         m_centreDir = 0;
 234     }
 235 }
 236
 237 void wxColourDialog::DoGetSize(int *width, int *height) const
 238 {
 239     if ( width )
 240         *width = gs_rectDialog.width;
 241     if ( height )
 242         *height = gs_rectDialog.height;
 243 }
 244
 245 void wxColourDialog::DoGetClientSize(int *width, int *height) const
 246 {
 247     if ( width )
 248         *width = gs_rectDialog.width;
 249     if ( height )
 250         *height = gs_rectDialog.height;
 251 }
 252
 253 void wxColourDialog::MSWOnInitDone(WXHWND hDlg)
 254 {
 255     // set HWND so that our DoMoveWindow() works correctly
 256     SetHWND(hDlg);
 257
 258     if ( m_centreDir )
 259     {
 260         // now we have the real dialog size, remember it
 261         RECT rect;
 262         ::GetWindowRect((HWND)hDlg, &rect);
 263         gs_rectDialog = wxRectFromRECT(rect);
 264
 265         // and position the window correctly: notice that we must use the base
 266         // class version as our own doesn't do anything except setting flags
 267         wxDialog::DoCentre(m_centreDir);
 268     }
 269     else if ( m_movedWindow ) // need to just move it to the correct place
 270     {
 271         SetPosition(GetPosition());
 272     }
 273
 274     // we shouldn't destroy hDlg, so disassociate from it
 275     SetHWND(NULL);
 276 }
 277
 278 #endif // wxUSE_COLOURDLG && !(__SMARTPHONE__ && __WXWINCE__)