guard against nullptr

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

diff --git a/src/msw/bmpbuttn.cpp b/src/msw/bmpbuttn.cpp
index e1be21611f2270c55b891b3106919f67fcb30a17..4cbbbbb97890eb7d63b2518419a82961b4a9a219 100644 (file)
--- a/src/msw/bmpbuttn.cpp
+++ b/src/msw/bmpbuttn.cpp
@@ -9,10 +9,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "bmpbuttn.h"
-#endif
-

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


@@ -22,73 +18,42 @@
 
 #if wxUSE_BMPBUTTON
 
 
 #if wxUSE_BMPBUTTON
 

+#include "wx/bmpbuttn.h"
+

 #ifndef WX_PRECOMP
 #ifndef WX_PRECOMP

-    #include "wx/bmpbuttn.h"

     #include "wx/log.h"
     #include "wx/dcmemory.h"
     #include "wx/log.h"
     #include "wx/dcmemory.h"

+    #include "wx/image.h"

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

-#include "wx/image.h"
-
-// ----------------------------------------------------------------------------
-// macros
-// ----------------------------------------------------------------------------
-
-#if wxUSE_EXTENDED_RTTI
-
-WX_DEFINE_FLAGS( wxBitmapButtonStyle )
+#include "wx/msw/dc.h"          // for wxDCTemp

 
 

-wxBEGIN_FLAGS( wxBitmapButtonStyle )
-    // new style border flags, we put them first to
-    // use them for streaming out
-    wxFLAGS_MEMBER(wxBORDER_SIMPLE)
-    wxFLAGS_MEMBER(wxBORDER_SUNKEN)
-    wxFLAGS_MEMBER(wxBORDER_DOUBLE)
-    wxFLAGS_MEMBER(wxBORDER_RAISED)
-    wxFLAGS_MEMBER(wxBORDER_STATIC)
-    wxFLAGS_MEMBER(wxBORDER_NONE)
+#include "wx/msw/uxtheme.h"

 
 

-    // old style border flags
-    wxFLAGS_MEMBER(wxSIMPLE_BORDER)
-    wxFLAGS_MEMBER(wxSUNKEN_BORDER)
-    wxFLAGS_MEMBER(wxDOUBLE_BORDER)
-    wxFLAGS_MEMBER(wxRAISED_BORDER)
-    wxFLAGS_MEMBER(wxSTATIC_BORDER)
-    wxFLAGS_MEMBER(wxBORDER)
+#if wxUSE_UXTHEME
+    // no need to include tmschema.h
+    #ifndef BP_PUSHBUTTON
+        #define BP_PUSHBUTTON 1

 
 

-    // standard window styles
-    wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
-    wxFLAGS_MEMBER(wxCLIP_CHILDREN)
-    wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
-    wxFLAGS_MEMBER(wxWANTS_CHARS)
-    wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
-    wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
-    wxFLAGS_MEMBER(wxVSCROLL)
-    wxFLAGS_MEMBER(wxHSCROLL)
+        #define PBS_NORMAL    1
+        #define PBS_HOT       2
+        #define PBS_PRESSED   3
+        #define PBS_DISABLED  4
+        #define PBS_DEFAULTED 5

 
 

-    wxFLAGS_MEMBER(wxBU_AUTODRAW)
-    wxFLAGS_MEMBER(wxBU_LEFT)
-    wxFLAGS_MEMBER(wxBU_RIGHT)
-    wxFLAGS_MEMBER(wxBU_TOP)
-    wxFLAGS_MEMBER(wxBU_BOTTOM)
-wxEND_FLAGS( wxBitmapButtonStyle )
+        #define TMT_CONTENTMARGINS 3602
+    #endif
+#endif // wxUSE_UXTHEME

 
 

-IMPLEMENT_DYNAMIC_CLASS_XTI(wxBitmapButton, wxButton,"wx/bmpbuttn.h")
-
-wxBEGIN_PROPERTIES_TABLE(wxBitmapButton)
-    wxPROPERTY_FLAGS( WindowStyle , wxBitmapButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
-wxEND_PROPERTIES_TABLE()
-
-wxBEGIN_HANDLERS_TABLE(wxBitmapButton)
-wxEND_HANDLERS_TABLE()
-
-wxCONSTRUCTOR_5( wxBitmapButton , wxWindow* , Parent , wxWindowID , Id , wxBitmap , Bitmap , wxPoint , Position , wxSize , Size )
-
-#else
-IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
+#ifndef ODS_NOFOCUSRECT
+    #define ODS_NOFOCUSRECT     0x0200

 #endif
 
 #endif
 

+// ----------------------------------------------------------------------------
+// macros
+// ----------------------------------------------------------------------------
+

 BEGIN_EVENT_TABLE(wxBitmapButton, wxBitmapButtonBase)
     EVT_SYS_COLOUR_CHANGED(wxBitmapButton::OnSysColourChanged)
 END_EVENT_TABLE()
 BEGIN_EVENT_TABLE(wxBitmapButton, wxBitmapButtonBase)
     EVT_SYS_COLOUR_CHANGED(wxBitmapButton::OnSysColourChanged)
 END_EVENT_TABLE()


@@ -103,404 +68,79 @@ bitmap "focus" ,
 bitmap "disabled" ,
 */
 
 bitmap "disabled" ,
 */
 

-#define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1)
-
-bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id,
-    const wxBitmap& bitmap,
-    const wxPoint& pos,
-    const wxSize& size, long style,
-    const wxValidator& wxVALIDATOR_PARAM(validator),
-    const wxString& name)
+bool wxBitmapButton::Create(wxWindow *parent,
+                            wxWindowID id,
+                            const wxBitmap& bitmap,
+                            const wxPoint& pos,
+                            const wxSize& size, long style,
+                            const wxValidator& validator,
+                            const wxString& name)

 {
 {

-    m_bmpNormal = bitmap;
-    SetName(name);
-
-#if wxUSE_VALIDATORS
-    SetValidator(validator);
-#endif // wxUSE_VALIDATORS
-
-    parent->AddChild(this);
-
-    m_backgroundColour = parent->GetBackgroundColour();
-    m_foregroundColour = parent->GetForegroundColour();
-    m_windowStyle = style;
-
-    if ( style & wxBU_AUTODRAW )
-    {
-        m_marginX = wxDEFAULT_BUTTON_MARGIN;
-        m_marginY = wxDEFAULT_BUTTON_MARGIN;
-    }
-
-    if (id == wxID_ANY)
-        m_windowId = NewControlId();
-    else
-        m_windowId = id;
-
-    long msStyle = WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ;
-
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        msStyle |= WS_CLIPSIBLINGS;
-
-#ifdef __WIN32__
-    if(m_windowStyle & wxBU_LEFT)
-        msStyle |= BS_LEFT;
-    if(m_windowStyle & wxBU_RIGHT)
-        msStyle |= BS_RIGHT;
-    if(m_windowStyle & wxBU_TOP)
-        msStyle |= BS_TOP;
-    if(m_windowStyle & wxBU_BOTTOM)
-        msStyle |= BS_BOTTOM;
-#endif
-
-    m_hWnd = (WXHWND) CreateWindowEx(
-                    0,
-                    wxT("BUTTON"),
-                    wxEmptyString,
-                    msStyle,
-                    0, 0, 0, 0,
-                    GetWinHwnd(parent),
-                    (HMENU)m_windowId,
-                    wxGetInstance(),
-                    NULL
-                   );
-
-    // Subclass again for purposes of dialog editing mode
-    SubclassWin(m_hWnd);
-
-    SetPosition(pos);
-    SetBestSize(size);
-
-    return true;
-}
-
-bool wxBitmapButton::SetBackgroundColour(const wxColour& colour)
-{
-    if ( !wxBitmapButtonBase::SetBackgroundColour(colour) )
-    {
-        // didn't change
+    if ( !wxBitmapButtonBase::Create(parent, id, pos, size, style,
+                                     validator, name) )

         return false;
         return false;

-    }
-
-    // invalidate the brush, it will be recreated the next time it's needed
-    m_brushDisabled = wxNullBrush;
-
-    return true;
-}
-
-void wxBitmapButton::OnSysColourChanged(wxSysColourChangedEvent& event)
-{
-    m_brushDisabled = wxNullBrush;
-
-    if ( !IsEnabled() )
-    {
-        // this change affects our current state
-        Refresh();
-    }
-
-    event.Skip();
-}

 
 

-// VZ: should be at the very least less than wxDEFAULT_BUTTON_MARGIN
-#define FOCUS_MARGIN 3
+    if ( bitmap.IsOk() )
+        SetBitmapLabel(bitmap);

 
 

-bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
-{
-#ifndef __WXWINCE__
-    long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
-    if (style & BS_BITMAP)
+    if ( !size.IsFullySpecified() )

     {
     {

-        // Let default procedure draw the bitmap, which is defined
-        // in the Windows resource.
-        return false;
-    }
-#endif
-
-    LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
-    HDC hDC                = lpDIS->hDC;
-    UINT state             = lpDIS->itemState;
-    bool isSelected        = (state & ODS_SELECTED) != 0;
-    bool autoDraw          = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
-
-
-    // choose the bitmap to use depending on the button state
-    wxBitmap* bitmap;
-
-    if ( isSelected && m_bmpSelected.Ok() )
-        bitmap = &m_bmpSelected;
-    else if ((state & ODS_FOCUS) && m_bmpFocus.Ok())
-        bitmap = &m_bmpFocus;
-    else if ((state & ODS_DISABLED) && m_bmpDisabled.Ok())
-        bitmap = &m_bmpDisabled;
-    else
-        bitmap = &m_bmpNormal;
-
-    if ( !bitmap->Ok() )
-        return false;
-
-    // centre the bitmap in the control area
-    int x      = lpDIS->rcItem.left;
-    int y      = lpDIS->rcItem.top;
-    int width  = lpDIS->rcItem.right - x;
-    int height = lpDIS->rcItem.bottom - y;
-    int wBmp   = bitmap->GetWidth();
-    int hBmp   = bitmap->GetHeight();
-
-    int x1,y1;
-
-    if(m_windowStyle & wxBU_LEFT)
-        x1 = x + (FOCUS_MARGIN+1);
-    else if(m_windowStyle & wxBU_RIGHT)
-        x1 = x + (width - wBmp) - (FOCUS_MARGIN+1);
-    else
-        x1 = x + (width - wBmp) / 2;
-
-    if(m_windowStyle & wxBU_TOP)
-        y1 = y + (FOCUS_MARGIN+1);
-    else if(m_windowStyle & wxBU_BOTTOM)
-        y1 = y + (height - hBmp) - (FOCUS_MARGIN+1);
-    else
-        y1 = y + (height - hBmp) / 2;
-
-    if ( isSelected && autoDraw )
-    {
-        x1++;
-        y1++;
-    }
-
-    // draw the face, if auto-drawing
-    if ( autoDraw )
-    {
-        DrawFace((WXHDC) hDC,
-                 lpDIS->rcItem.left, lpDIS->rcItem.top,
-                 lpDIS->rcItem.right, lpDIS->rcItem.bottom,
-                 isSelected);
-    }
-
-    // draw the bitmap
-    wxDC dst;
-    dst.SetHDC((WXHDC) hDC, false);
-    dst.DrawBitmap(*bitmap, x1, y1, true);
-
-    // draw focus / disabled state, if auto-drawing
-    if ( (state & ODS_DISABLED) && autoDraw )
-    {
-        DrawButtonDisable((WXHDC) hDC,
-                          lpDIS->rcItem.left, lpDIS->rcItem.top,
-                          lpDIS->rcItem.right, lpDIS->rcItem.bottom,
-                          true);
-    }
-    else if ( (state & ODS_FOCUS) && autoDraw )
-    {
-        DrawButtonFocus((WXHDC) hDC,
-                        lpDIS->rcItem.left,
-                        lpDIS->rcItem.top,
-                        lpDIS->rcItem.right,
-                        lpDIS->rcItem.bottom,
-                        isSelected);
+        // As our bitmap has just changed, our best size has changed as well so
+        // reset the initial size using the new value.
+        SetInitialSize(size);

     }
 
     return true;
 }
 
     }
 
     return true;
 }
 

-// GRG Feb/2000, support for bmp buttons with Win95/98 standard LNF
-
-#if defined(__WIN95__)
-
-void wxBitmapButton::DrawFace( WXHDC dc, int left, int top,
-    int right, int bottom, bool sel )
-{
-    HPEN oldp;
-    HPEN penHiLight;
-    HPEN penLight;
-    HPEN penShadow;
-    HPEN penDkShadow;
-    HBRUSH brushFace;
-
-    // create needed pens and brush
-    penHiLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DHILIGHT));
-    penLight    = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DLIGHT));
-    penShadow   = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
-    penDkShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DDKSHADOW));
-    // brushFace   = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
-    // Taking the background colour fits in better with
-    // Windows XP themes.
-    brushFace   = CreateSolidBrush(m_backgroundColour.m_pixel);
-
-    // draw the rectangle
-    RECT rect;
-    rect.left   = left;
-    rect.right  = right;
-    rect.top    = top;
-    rect.bottom = bottom;
-    FillRect((HDC) dc, &rect, brushFace);
-
-    // draw the border
-    oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
-
-    wxDrawLine((HDC) dc, left, top, right-1, top);
-    wxDrawLine((HDC) dc, left, top+1, left, bottom-1);
-
-    SelectObject( (HDC) dc, sel? penShadow : penLight);
-    wxDrawLine((HDC) dc, left+1, top+1, right-2, top+1);
-    wxDrawLine((HDC) dc, left+1, top+2, left+1, bottom-2);
-
-    SelectObject( (HDC) dc, sel? penLight : penShadow);
-    wxDrawLine((HDC) dc, left+1, bottom-2, right-1, bottom-2);
-    wxDrawLine((HDC) dc, right-2, bottom-3, right-2, top);
-
-    SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
-    wxDrawLine((HDC) dc, left, bottom-1, right+2, bottom-1);
-    wxDrawLine((HDC) dc, right-1, bottom-2, right-1, top-1);
-
-    // delete allocated resources
-    SelectObject((HDC) dc,oldp);
-    DeleteObject(penHiLight);
-    DeleteObject(penLight);
-    DeleteObject(penShadow);
-    DeleteObject(penDkShadow);
-    DeleteObject(brushFace);
-}
-
-#else
-
-void wxBitmapButton::DrawFace( WXHDC dc, int left, int top,
-    int right, int bottom, bool sel )
-{
-    HPEN oldp;
-    HPEN penBorder;
-    HPEN penLight;
-    HPEN penShadow;
-    HBRUSH brushFace;
-
-    // create needed pens and brush
-    penBorder = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOWFRAME));
-    penShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNSHADOW));
-    penLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNHIGHLIGHT));
-    brushFace = CreateSolidBrush(COLOR_BTNFACE);
-
-    // draw the rectangle
-    RECT rect;
-    rect.left   = left;
-    rect.right  = right;
-    rect.top    = top;
-    rect.bottom = bottom;
-    FillRect((HDC) dc, &rect, brushFace);
-
-    // draw the border
-    oldp = (HPEN) SelectObject( (HDC) dc, penBorder);
-    MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
-    MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
-    MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
-    MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
-
-    SelectObject( (HDC) dc, penShadow);
-    if (sel)
-    {
-        MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
-        LineTo((HDC) dc,  left+1    ,top+1);
-        LineTo((HDC) dc,  right-2   ,top+1);
-    }
-    else
-    {
-        MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
-        LineTo((HDC) dc,  right-2   ,bottom-2);
-        LineTo((HDC) dc,  right-2   ,top);
-
-        MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL);
-        LineTo((HDC) dc,  right-3   ,bottom-3);
-        LineTo((HDC) dc,  right-3   ,top+1);
-
-        SelectObject( (HDC) dc, penLight);
-
-        MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
-        LineTo((HDC) dc,  left+1    ,top+1);
-        LineTo((HDC) dc,  right-2   ,top+1);
-    }
-
-    // delete allocated resources
-    SelectObject((HDC) dc,oldp);
-    DeleteObject(penBorder);
-    DeleteObject(penLight);
-    DeleteObject(penShadow);
-    DeleteObject(brushFace);
-}
-
-#endif // defined(__WIN95__)
-
-
-void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right,
-    int bottom, bool WXUNUSED(sel) )
-{
-    RECT rect;
-    rect.left = left;
-    rect.top = top;
-    rect.right = right;
-    rect.bottom = bottom;
-    InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
-
-    // GRG: the focus rectangle should not move when the button is pushed!
-/*
-    if ( sel )
-        OffsetRect( &rect, 1, 1 );
-*/
-
-    DrawFocusRect( (HDC) dc, &rect );
-}
-
-void
-wxBitmapButton::DrawButtonDisable( WXHDC dc,
-                                   int left, int top, int right, int bottom,
-                                   bool with_marg )
+void wxBitmapButton::DoSetBitmap(const wxBitmap& bitmap, State which)

 {
 {

-    if ( !m_brushDisabled.Ok() )
+    if ( bitmap.IsOk() )

     {
     {

-        // draw a bitmap with two black and two background colour pixels
-        wxBitmap bmp(2, 2);
-        wxMemoryDC dc;
-        dc.SelectObject(bmp);
-        dc.SetPen(*wxBLACK_PEN);
-        dc.DrawPoint(0, 0);
-        dc.DrawPoint(1, 1);
-        dc.SetPen(GetBackgroundColour());
-        dc.DrawPoint(0, 1);
-        dc.DrawPoint(1, 0);
-
-        m_brushDisabled = wxBrush(bmp);
-    }
-
-    SelectInHDC selectBrush((HDC)dc, GetHbrushOf(m_brushDisabled));
-
-    // ROP for "dest |= pattern" operation -- as it doesn't have a standard
-    // name, give it our own
-    static const DWORD PATTERNPAINT = 0xFA0089UL;
-
-    if ( with_marg )
-    {
-        left += m_marginX;
-        top += m_marginY;
-        right -= 2 * m_marginX;
-        bottom -= 2 * m_marginY;
-    }
-
-    ::PatBlt( (HDC) dc, left, top, right, bottom, PATTERNPAINT);
-}
-
-void wxBitmapButton::SetDefault()
-{
-    wxButton::SetDefault();
-}
-
-wxSize wxBitmapButton::DoGetBestSize() const
-{
-    if ( m_bmpNormal.Ok() )
-    {
-        return wxSize(m_bmpNormal.GetWidth() + 2*m_marginX,
-                      m_bmpNormal.GetHeight() + 2*m_marginY);
+        switch ( which )
+        {
+#if wxUSE_IMAGE
+            case State_Normal:
+                if ( !HasFlag(wxBU_AUTODRAW) && !m_disabledSetByUser )
+                {
+                    wxImage img(bitmap.ConvertToImage().ConvertToGreyscale());
+                    wxBitmapButtonBase::DoSetBitmap(img, State_Disabled);
+                }
+                break;
+#endif // wxUSE_IMAGE
+
+            case State_Focused:
+                // if the focus bitmap is specified but current one isn't, use
+                // the focus bitmap for hovering as well if this is consistent
+                // with the current Windows version look and feel
+                //
+                // rationale: this is compatible with the old wxGTK behaviour
+                // and also makes it much easier to do "the right thing" for
+                // all platforms (some of them, such as Windows XP, have "hot"
+                // buttons while others don't)
+                if ( !m_hoverSetByUser )
+                    wxBitmapButtonBase::DoSetBitmap(bitmap, State_Current);
+                break;
+
+            case State_Current:
+                // don't overwrite it with the focused bitmap
+                m_hoverSetByUser = true;
+                break;
+
+            case State_Disabled:
+                // don't overwrite it with the version automatically created
+                // from the normal one
+                m_disabledSetByUser = true;
+                break;
+
+            default:
+                // nothing special to do but include the default clause to
+                // suppress gcc warnings
+                ;
+        }

     }
 
     }
 

-    // no idea what our best size should be, defer to the base class
-    return wxBitmapButtonBase::DoGetBestSize();
+    wxBitmapButtonBase::DoSetBitmap(bitmap, which);

 }
 
 #endif // wxUSE_BMPBUTTON
 }
 
 #endif // wxUSE_BMPBUTTON

-