don't clear clipboard if it was changed by another application since we used it ...

[wxWidgets.git] / src / msw / control.cpp

diff --git a/src/msw/control.cpp b/src/msw/control.cpp
index 17c62f087c86172660d6a3f259126663742f7284..e8a3e921d881365a58ef68c5a6df065c2c258cbc 100644 (file)
--- a/src/msw/control.cpp
+++ b/src/msw/control.cpp
@@ -1,61 +1,105 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        control.cpp
+// Name:        src/msw/control.cpp

 // Purpose:     wxControl class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$
 // Purpose:     wxControl class
 // Author:      Julian Smart
 // Modified by:
 // Created:     01/02/97
 // RCS-ID:      $Id$

-// Copyright:   (c) Julian Smart and Markus Holzem
+// Copyright:   (c) Julian Smart

 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "control.h"
-#endif
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------

 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__

-#pragma hdrstop
+    #pragma hdrstop

 #endif
 
 #endif
 

+#if wxUSE_CONTROLS
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

-#include "wx/event.h"
-#include "wx/app.h"
-#include "wx/dcclient.h"
+    #include "wx/event.h"
+    #include "wx/app.h"
+    #include "wx/dcclient.h"
+    #include "wx/log.h"
+    #include "wx/settings.h"

 #endif
 
 #include "wx/control.h"
 
 #endif
 
 #include "wx/control.h"
 

+#if wxUSE_LISTCTRL
+    #include "wx/listctrl.h"
+#endif // wxUSE_LISTCTRL
+
+#if wxUSE_TREECTRL
+    #include "wx/treectrl.h"
+#endif // wxUSE_TREECTRL
+

 #include "wx/msw/private.h"
 #include "wx/msw/private.h"

+#include "wx/msw/uxtheme.h"

 
 

-#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS)
-#include <commctrl.h>
-#endif
+// include <commctrl.h> "properly"
+#include "wx/msw/wrapcctl.h"
+
+// ----------------------------------------------------------------------------
+// wxWin macros
+// ----------------------------------------------------------------------------

 
 

-#if !USE_SHARED_LIBRARY

 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
 
 IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow)
 

-BEGIN_EVENT_TABLE(wxControl, wxWindow)
-    EVT_ERASE_BACKGROUND(wxControl::OnEraseBackground)
-END_EVENT_TABLE()
-#endif
+// ============================================================================
+// wxControl implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxControl ctor/dtor
+// ----------------------------------------------------------------------------
+
+wxControl::~wxControl()
+{
+    m_isBeingDeleted = true;
+}

 
 

-// Item members
-wxControl::wxControl()
+// ----------------------------------------------------------------------------
+// control window creation
+// ----------------------------------------------------------------------------
+
+bool wxControl::Create(wxWindow *parent,
+                       wxWindowID id,
+                       const wxPoint& pos,
+                       const wxSize& size,
+                       long style,
+                       const wxValidator& wxVALIDATOR_PARAM(validator),
+                       const wxString& name)

 {
 {

-    m_backgroundColour = *wxWHITE;
-    m_foregroundColour = *wxBLACK;
+    if ( !wxWindow::Create(parent, id, pos, size, style, name) )
+        return false;
+
+#if wxUSE_VALIDATORS
+    SetValidator(validator);
+#endif

 
 

-#if WXWIN_COMPATIBILITY
-    m_callback = 0;
-#endif // WXWIN_COMPATIBILITY
+    return true;

 }
 
 }
 

-wxControl::~wxControl()
+bool wxControl::MSWCreateControl(const wxChar *classname,
+                                 const wxString& label,
+                                 const wxPoint& pos,
+                                 const wxSize& size)

 {
 {

-    m_isBeingDeleted = TRUE;
+    WXDWORD exstyle;
+    WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), &exstyle);
+
+    return MSWCreateControl(classname, msStyle, pos, size, label, exstyle);

 }
 
 bool wxControl::MSWCreateControl(const wxChar *classname,
 }
 
 bool wxControl::MSWCreateControl(const wxChar *classname,


@@ -65,19 +109,34 @@ bool wxControl::MSWCreateControl(const wxChar *classname,
                                  const wxString& label,
                                  WXDWORD exstyle)
 {
                                  const wxString& label,
                                  WXDWORD exstyle)
 {

-    // VZ: if someone could put a comment here explaining what exactly this is
-    //     needed for, it would be nice...
-    bool want3D;
-

     // if no extended style given, determine it ourselves
     if ( exstyle == (WXDWORD)-1 )
     {
     // if no extended style given, determine it ourselves
     if ( exstyle == (WXDWORD)-1 )
     {

-        exstyle = GetExStyle(style, &want3D);
+        exstyle = 0;
+        (void) MSWGetStyle(GetWindowStyle(), &exstyle);
+    }
+
+    // all controls should have this style
+    style |= WS_CHILD;
+
+    // create the control visible if it's currently shown for wxWidgets
+    if ( m_isShown )
+    {
+        style |= WS_VISIBLE;

     }
 
     }
 

-    // all controls have these childs (wxWindows creates all controls visible
-    // by default)
-    style |= WS_CHILD | WS_VISIBLE;
+    // choose the position for the control: we have a problem with default size
+    // here as we can't calculate the best size before the control exists
+    // (DoGetBestSize() may need to use m_hWnd), so just choose the minimal
+    // possible but non 0 size because 0 window width/height result in problems
+    // elsewhere
+    int x = pos.x == wxDefaultCoord ? 0 : pos.x,
+        y = pos.y == wxDefaultCoord ? 0 : pos.y,
+        w = size.x == wxDefaultCoord ? 1 : size.x,
+        h = size.y == wxDefaultCoord ? 1 : size.y;
+
+    // ... and adjust it to account for a possible parent frames toolbar
+    AdjustForParentClientOrigin(x, y);

 
     m_hWnd = (WXHWND)::CreateWindowEx
                        (
 
     m_hWnd = (WXHWND)::CreateWindowEx
                        (


@@ -85,8 +144,7 @@ bool wxControl::MSWCreateControl(const wxChar *classname,
                         classname,          // the kind of control to create
                         label,              // the window name
                         style,              // the window style
                         classname,          // the kind of control to create
                         label,              // the window name
                         style,              // the window style

-                        pos.x, pos.y,       // the window position
-                        size.x, size.y,     //            and size
+                        x, y, w, h,         // the window position and size

                         GetHwndOf(GetParent()),  // parent
                         (HMENU)GetId(),     // child id
                         wxGetInstance(),    // app instance
                         GetHwndOf(GetParent()),  // parent
                         (HMENU)GetId(),     // child id
                         wxGetInstance(),    // app instance


@@ -96,58 +154,166 @@ bool wxControl::MSWCreateControl(const wxChar *classname,
     if ( !m_hWnd )
     {
 #ifdef __WXDEBUG__
     if ( !m_hWnd )
     {
 #ifdef __WXDEBUG__

-        wxLogError(wxT("Failed to create a control of class '%s'"), classname);
-#endif // DEBUG
-
-        return FALSE;
+        wxFAIL_MSG(wxString::Format
+                   (
+                    _T("CreateWindowEx(\"%s\", flags=%08x, ex=%08x) failed"),
+                    classname, (unsigned int)style, (unsigned int)exstyle
+                   ));
+#endif // __WXDEBUG__
+
+        return false;

     }
 
     }
 

-#if wxUSE_CTL3D
-    if ( want3D )
+    // install wxWidgets window proc for this window
+    SubclassWin(m_hWnd);
+
+    // set up fonts and colours
+    InheritAttributes();
+    if ( !m_hasFont )

     {
     {

-        Ctl3dSubclassCtl(GetHwnd());
-        m_useCtl3D = TRUE;
+#if wxUSE_LISTCTRL || wxUSE_TREECTRL
+        // if we set a font for {list,tree}ctrls and the font size is changed in
+        // the display properties then the font size for these controls doesn't
+        // automatically adjust when they receive WM_SETTINGCHANGE
+        if ( wxDynamicCastThis(wxListCtrl) || wxDynamicCastThis(wxTreeCtrl) )
+        {
+            // not sure if we need to explicitly set the font here for Win95/NT4
+            // but we definitely can't do it for any newer version
+            // see wxGetCCDefaultFont() in src/msw/settings.cpp for explanation
+            // of why this test works
+
+            // TODO: test Win95/NT4 to see if this is needed or breaks the
+            // font resizing as it does on newer versions
+            wxFont font = GetDefaultAttributes().font;
+            if ( font == wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT) )
+            {
+                SetFont(font);
+            }
+        }
+        else
+#endif // wxUSE_LISTCTRL || wxUSE_TREECTRL
+        {
+            SetFont(GetDefaultAttributes().font);
+        }

     }
     }

-#endif // wxUSE_CTL3D

 
 

-    // subclass again for purposes of dialog editing mode
-    SubclassWin(m_hWnd);
+    // set the size now if no initial size specified
+    SetInitialBestSize(size);

 
 

-    // controls use the same font and colours as their parent dialog by default
-    InheritAttributes();
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+// various accessors
+// ----------------------------------------------------------------------------
+
+wxBorder wxControl::GetDefaultBorder() const
+{
+    // we want to automatically give controls a sunken style (confusingly,
+    // it may not really mean sunken at all as we map it to WS_EX_CLIENTEDGE
+    // which is not sunken at all under Windows XP -- rather, just the default)
+#if defined(__POCKETPC__) || defined(__SMARTPHONE__)
+    return wxBORDER_SIMPLE;
+#else
+    return wxBORDER_SUNKEN;
+#endif
+}
+
+WXDWORD wxControl::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    long msStyle = wxWindow::MSWGetStyle(style, exstyle);

 
 

-    return TRUE;
+    if ( AcceptsFocus() )
+    {
+        msStyle |= WS_TABSTOP;
+    }
+
+    return msStyle;

 }
 
 }
 

-wxSize wxControl::DoGetBestSize()
+wxSize wxControl::DoGetBestSize() const

 {
     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 }
 
 {
     return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT);
 }
 

-bool wxControl::ProcessCommand(wxCommandEvent& event)
+// This is a helper for all wxControls made with UPDOWN native control.
+// In wxMSW it was only wxSpinCtrl derived from wxSpinButton but in
+// WinCE of Smartphones this happens also for native wxTextCtrl,
+// wxChoice and others.
+wxSize wxControl::GetBestSpinnerSize(const bool is_vertical) const

 {
 {

-#if WXWIN_COMPATIBILITY
-    if ( m_callback )
-    {
-        (void)(*m_callback)(this, event);
+    // take size according to layout
+    wxSize bestSize(
+#if defined(__SMARTPHONE__) && defined(__WXWINCE__)
+                    0,GetCharHeight()
+#else
+                    ::GetSystemMetrics(is_vertical ? SM_CXVSCROLL : SM_CXHSCROLL),
+                    ::GetSystemMetrics(is_vertical ? SM_CYVSCROLL : SM_CYHSCROLL)
+#endif
+    );

 
 

-        return TRUE;
-    }
+    // correct size as for undocumented MSW variants cases (WinCE and perhaps others)
+    if (bestSize.x==0)
+        bestSize.x = bestSize.y;
+    if (bestSize.y==0)
+        bestSize.y = bestSize.x;
+
+    // double size according to layout
+    if (is_vertical)
+        bestSize.y *= 2;

     else
     else

-#endif // WXWIN_COMPATIBILITY
+        bestSize.x *= 2;
+
+    return bestSize;
+}
+
+/* static */ wxVisualAttributes
+wxControl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+    wxVisualAttributes attrs;
+
+    // old school (i.e. not "common") controls use the standard dialog font
+    // by default
+    attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+
+    // most, or at least many, of the controls use the same colours as the
+    // buttons -- others will have to override this (and possibly simply call
+    // GetCompositeControlsDefaultAttributes() from their versions)
+    attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT);
+    attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);

 
 

+    return attrs;
+}
+
+// another version for the "composite", i.e. non simple controls
+/* static */ wxVisualAttributes
+wxControl::GetCompositeControlsDefaultAttributes(wxWindowVariant WXUNUSED(variant))
+{
+    wxVisualAttributes attrs;
+    attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
+    attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT);
+    attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
+
+    return attrs;
+}
+
+// ----------------------------------------------------------------------------
+// message handling
+// ----------------------------------------------------------------------------
+
+bool wxControl::ProcessCommand(wxCommandEvent& event)
+{

     return GetEventHandler()->ProcessEvent(event);
 }
 
     return GetEventHandler()->ProcessEvent(event);
 }
 

-#ifdef __WIN95__

 bool wxControl::MSWOnNotify(int idCtrl,
                             WXLPARAM lParam,
                             WXLPARAM* result)
 {
 bool wxControl::MSWOnNotify(int idCtrl,
                             WXLPARAM lParam,
                             WXLPARAM* result)
 {

-    wxCommandEvent event(wxEVT_NULL, m_windowId);
-    wxEventType eventType = wxEVT_NULL;
-    NMHDR *hdr1 = (NMHDR*) lParam;
-    switch ( hdr1->code )
+    wxEventType eventType wxDUMMY_INITIALIZE(wxEVT_NULL);
+
+    NMHDR *hdr = (NMHDR*) lParam;
+    switch ( hdr->code )

     {
         case NM_CLICK:
             eventType = wxEVT_COMMAND_LEFT_CLICK;
     {
         case NM_CLICK:
             eventType = wxEVT_COMMAND_LEFT_CLICK;


@@ -181,52 +347,83 @@ bool wxControl::MSWOnNotify(int idCtrl,
             return wxWindow::MSWOnNotify(idCtrl, lParam, result);
     }
 
             return wxWindow::MSWOnNotify(idCtrl, lParam, result);
     }
 

+    wxCommandEvent event(wxEVT_NULL, m_windowId);

     event.SetEventType(eventType);
     event.SetEventObject(this);
 
     return GetEventHandler()->ProcessEvent(event);
 }
     event.SetEventType(eventType);
     event.SetEventObject(this);
 
     return GetEventHandler()->ProcessEvent(event);
 }

-#endif // Win95

 
 

-void wxControl::OnEraseBackground(wxEraseEvent& event)
+WXHBRUSH wxControl::DoMSWControlColor(WXHDC pDC, wxColour colBg, WXHWND hWnd)

 {
 {

-    // In general, you don't want to erase the background of a control,
-    // or you'll get a flicker.
-    // TODO: move this 'null' function into each control that
-    // might flicker.
+    HDC hdc = (HDC)pDC;
+    if ( m_hasFgCol )
+    {
+        ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
+    }

 
 

-    RECT rect;
-    ::GetClientRect(GetHwnd(), &rect);
+    WXHBRUSH hbr = 0;
+    if ( !colBg.Ok() )
+    {
+        hbr = MSWGetBgBrush(pDC, hWnd);

 
 

-    HBRUSH hBrush = ::CreateSolidBrush(wxColourToRGB(GetBackgroundColour()));
+        // if the control doesn't have any bg colour, foreground colour will be
+        // ignored as the return value would be 0 -- so forcefully give it a
+        // non default background brush in this case
+        if ( !hbr && m_hasFgCol )
+            colBg = GetBackgroundColour();
+    }
+
+    // use the background colour override if a valid colour is given
+    if ( colBg.Ok() )
+    {
+        ::SetBkColor(hdc, wxColourToRGB(colBg));

 
 

-    HDC hdc = GetHdcOf((*event.GetDC()));
-    int mode = ::SetMapMode(hdc, MM_TEXT);
+        // draw children with the same colour as the parent
+        wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBg, wxSOLID);

 
 

-    ::FillRect(hdc, &rect, hBrush);
-    ::DeleteObject(hBrush);
-    ::SetMapMode(hdc, mode);
+        hbr = (WXHBRUSH)brush->GetResourceHandle();
+
+        // if we use custom background, we should set foreground ourselves too
+        if ( !m_hasFgCol )
+        {
+            ::SetTextColor(hdc, ::GetSysColor(COLOR_WINDOWTEXT));
+        }
+        //else: already set above
+    }
+
+    return hbr;

 }
 
 }
 

-WXDWORD wxControl::GetExStyle(WXDWORD& style, bool *want3D) const
+WXHBRUSH wxControl::MSWControlColor(WXHDC pDC, WXHWND hWnd)

 {
 {

-    WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, want3D);
+    wxColour colBg;
+
+    if ( HasTransparentBackground() )
+        ::SetBkMode((HDC)pDC, TRANSPARENT);
+    else // if the control is opaque it shouldn't use the parents background
+        colBg = GetBackgroundColour();

 
 

-    // Even with extended styles, need to combine with WS_BORDER for them to
-    // look right.
-    if ( *want3D || wxStyleHasBorder(m_windowStyle) )
-        style |= WS_BORDER;
+    return DoMSWControlColor(pDC, colBg, hWnd);
+}

 
 

-    return exStyle;
+WXHBRUSH wxControl::MSWControlColorDisabled(WXHDC pDC)
+{
+    return DoMSWControlColor(pDC,
+                             wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE),
+                             GetHWND());

 }
 
 // ---------------------------------------------------------------------------
 // global functions
 // ---------------------------------------------------------------------------
 
 }
 
 // ---------------------------------------------------------------------------
 // global functions
 // ---------------------------------------------------------------------------
 

+// this is used in radiobox.cpp and slider95.cpp and should be removed as soon
+// as it is not needed there any more!
+//

 // Call this repeatedly for several wnds to find the overall size
 // of the widget.
 // Call this repeatedly for several wnds to find the overall size
 // of the widget.

-// Call it initially with -1 for all values in rect.
+// Call it initially with wxDefaultCoord for all values in rect.

 // Keep calling for other widgets, and rect will be modified
 // to calculate largest bounding rectangle.
 void wxFindMaxSize(WXHWND wnd, RECT *rect)
 // Keep calling for other widgets, and rect will be modified
 // to calculate largest bounding rectangle.
 void wxFindMaxSize(WXHWND wnd, RECT *rect)


@@ -254,3 +451,4 @@ void wxFindMaxSize(WXHWND wnd, RECT *rect)
         rect->bottom = bottom;
 }
 
         rect->bottom = bottom;
 }
 

+#endif // wxUSE_CONTROLS