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 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   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_COLOURDLG && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
  28
  29 #include "wx/colordlg.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/dialog.h"
  38     #include "wx/cmndata.h"
  39     #include "wx/math.h"
  40 #endif
  41
  42 #include "wx/msw/private.h"
  43
  44 #include <stdlib.h>
  45 #include <string.h>
  46
  47 // ----------------------------------------------------------------------------
  48 // globals
  49 // ----------------------------------------------------------------------------
  50
  51 // standard colors dialog size for the Windows systems
  52 // this is ok if color dialog created with standart color
  53 // and "Define Custom Colors" extension not shown
  54 static wxRect gs_rectDialog(0, 0, 222, 324);
  55
  56 // ----------------------------------------------------------------------------
  57 // wxWin macros
  58 // ----------------------------------------------------------------------------
  59
  60 IMPLEMENT_DYNAMIC_CLASS(wxColourDialog, wxDialog)
  61
  62 // ============================================================================
  63 // implementation
  64 // ============================================================================
  65
  66 // ----------------------------------------------------------------------------
  67 // colour dialog hook proc
  68 // ----------------------------------------------------------------------------
  69
  70 UINT_PTR CALLBACK
  71 wxColourDialogHookProc(HWND hwnd,
  72                        UINT uiMsg,
  73                        WPARAM WXUNUSED(wParam),
  74                        LPARAM lParam)
  75 {
  76     if ( uiMsg == WM_INITDIALOG )
  77     {
  78         CHOOSECOLOR *pCC = (CHOOSECOLOR *)lParam;
  79         wxColourDialog * const
  80             dialog = wx_reinterpret_cast(wxColourDialog *, pCC->lCustData);
  81
  82         const wxString title = dialog->GetTitle();
  83         if ( !title.empty() )
  84             ::SetWindowText(hwnd, title.wx_str());
  85
  86         dialog->MSWOnInitDone((WXHWND)hwnd);
  87     }
  88
  89     return 0;
  90 }
  91
  92 // ----------------------------------------------------------------------------
  93 // wxColourDialog
  94 // ----------------------------------------------------------------------------
  95
  96 void wxColourDialog::Init()
  97 {
  98     m_movedWindow = false;
  99     m_centreDir = 0;
 100
 101     // reset to zero, otherwise the wx routines won't size the window the
 102     // second time the dialog is shown, because they would believe it already
 103     // has the requested size/position
 104     gs_rectDialog.x =
 105     gs_rectDialog.y = 0;
 106 }
 107
 108 bool wxColourDialog::Create(wxWindow *parent, wxColourData *data)
 109 {
 110     m_parent = parent;
 111     if (data)
 112         m_colourData = *data;
 113
 114     return true;
 115 }
 116
 117 int wxColourDialog::ShowModal()
 118 {
 119     CHOOSECOLOR chooseColorStruct;
 120     COLORREF custColours[16];
 121     memset(&chooseColorStruct, 0, sizeof(CHOOSECOLOR));
 122
 123     int i;
 124     for (i = 0; i < 16; i++)
 125     {
 126         if (m_colourData.m_custColours[i].Ok())
 127             custColours[i] = wxColourToRGB(m_colourData.m_custColours[i]);
 128         else
 129             custColours[i] = RGB(255,255,255);
 130     }
 131
 132     chooseColorStruct.lStructSize = sizeof(CHOOSECOLOR);
 133     if ( m_parent )
 134         chooseColorStruct.hwndOwner = GetHwndOf(m_parent);
 135     chooseColorStruct.rgbResult = wxColourToRGB(m_colourData.m_dataColour);
 136     chooseColorStruct.lpCustColors = custColours;
 137
 138     chooseColorStruct.Flags = CC_RGBINIT | CC_ENABLEHOOK;
 139     chooseColorStruct.lCustData = (LPARAM)this;
 140     chooseColorStruct.lpfnHook = wxColourDialogHookProc;
 141
 142     if (m_colourData.GetChooseFull())
 143         chooseColorStruct.Flags |= CC_FULLOPEN;
 144
 145     // Do the modal dialog
 146     bool success = ::ChooseColor(&(chooseColorStruct)) != 0;
 147
 148     // Try to highlight the correct window (the parent)
 149     if (GetParent())
 150     {
 151       HWND hWndParent = (HWND) GetParent()->GetHWND();
 152       if (hWndParent)
 153         ::BringWindowToTop(hWndParent);
 154     }
 155
 156
 157     // Restore values
 158     for (i = 0; i < 16; i++)
 159     {
 160       wxRGBToColour(m_colourData.m_custColours[i], custColours[i]);
 161     }
 162
 163     wxRGBToColour(m_colourData.m_dataColour, chooseColorStruct.rgbResult);
 164
 165     return success ? wxID_OK : wxID_CANCEL;
 166 }
 167
 168 // ----------------------------------------------------------------------------
 169 // title
 170 // ----------------------------------------------------------------------------
 171
 172 void wxColourDialog::SetTitle(const wxString& title)
 173 {
 174     m_title = title;
 175 }
 176
 177 wxString wxColourDialog::GetTitle() const
 178 {
 179     return m_title;
 180 }
 181
 182 // ----------------------------------------------------------------------------
 183 // position/size
 184 // ----------------------------------------------------------------------------
 185
 186 void wxColourDialog::DoGetPosition(int *x, int *y) const
 187 {
 188     if ( x )
 189         *x = gs_rectDialog.x;
 190     if ( y )
 191         *y = gs_rectDialog.y;
 192 }
 193
 194 void wxColourDialog::DoCentre(int dir)
 195 {
 196     m_centreDir = dir;
 197
 198     // it's unnecessary to do anything else at this stage as we'll redo it in
 199     // MSWOnInitDone() anyhow
 200 }
 201
 202 void wxColourDialog::DoMoveWindow(int x, int y, int WXUNUSED(w), int WXUNUSED(h))
 203 {
 204     gs_rectDialog.x = x;
 205     gs_rectDialog.y = y;
 206
 207     // our HWND is only set when we're called from MSWOnInitDone(), test if
 208     // this is the case
 209     HWND hwnd = GetHwnd();
 210     if ( hwnd )
 211     {
 212         // size of the dialog can't be changed because the controls are not
 213         // laid out correctly then
 214        ::SetWindowPos(hwnd, HWND_TOP, x, y, 0, 0, SWP_NOZORDER | SWP_NOSIZE);
 215     }
 216     else // just remember that we were requested to move the window
 217     {
 218         m_movedWindow = true;
 219
 220         // if Centre() had been called before, it shouldn't be taken into
 221         // account now
 222         m_centreDir = 0;
 223     }
 224 }
 225
 226 void wxColourDialog::DoGetSize(int *width, int *height) const
 227 {
 228     if ( width )
 229         *width = gs_rectDialog.width;
 230     if ( height )
 231         *height = gs_rectDialog.height;
 232 }
 233
 234 void wxColourDialog::DoGetClientSize(int *width, int *height) const
 235 {
 236     if ( width )
 237         *width = gs_rectDialog.width;
 238     if ( height )
 239         *height = gs_rectDialog.height;
 240 }
 241
 242 void wxColourDialog::MSWOnInitDone(WXHWND hDlg)
 243 {
 244     // set HWND so that our DoMoveWindow() works correctly
 245     SetHWND(hDlg);
 246
 247     if ( m_centreDir )
 248     {
 249         // now we have the real dialog size, remember it
 250         RECT rect;
 251         ::GetWindowRect((HWND)hDlg, &rect);
 252         gs_rectDialog = wxRectFromRECT(rect);
 253
 254         // and position the window correctly: notice that we must use the base
 255         // class version as our own doesn't do anything except setting flags
 256         wxDialog::DoCentre(m_centreDir);
 257     }
 258     else if ( m_movedWindow ) // need to just move it to the correct place
 259     {
 260         SetPosition(GetPosition());
 261     }
 262
 263     // we shouldn't destroy hDlg, so disassociate from it
 264     SetHWND(NULL);
 265 }
 266
 267 #endif // wxUSE_COLOURDLG && !(__SMARTPHONE__ && __WXWINCE__)