tbar95.cpp

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/////////////////////////////////////////////////////////////////////////////
// Name:        msw/tbar95.cpp
// Purpose:     wxToolBar
// Author:      Julian Smart
// Modified by:
// Created:     04/01/98
// RCS-ID:      $Id: tbar95.cpp,v 1.157.2.8 2006/04/01 18:16:17 JS Exp $
// Copyright:   (c) Julian Smart
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
    #pragma implementation "tbar95.h"
#endif

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

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/frame.h"
    #include "wx/log.h"
    #include "wx/intl.h"
    #include "wx/dynarray.h"
    #include "wx/settings.h"
    #include "wx/bitmap.h"
    #include "wx/dcmemory.h"
    #include "wx/control.h"
#endif

#if wxUSE_TOOLBAR && wxUSE_TOOLBAR_NATIVE && !defined(__SMARTPHONE__)

#include "wx/toolbar.h"
#include "wx/sysopt.h"
#include "wx/image.h"

#include "wx/msw/private.h"

#if wxUSE_UXTHEME
#include "wx/msw/uxtheme.h"
#endif

// include <commctrl.h> "properly"
#include "wx/msw/wrapcctl.h"

#include "wx/app.h"         // for GetComCtl32Version

// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------

// these standard constants are not always defined in compilers headers

// Styles
#ifndef TBSTYLE_FLAT
    #define TBSTYLE_LIST            0x1000
    #define TBSTYLE_FLAT            0x0800
#endif

#ifndef TBSTYLE_TRANSPARENT
    #define TBSTYLE_TRANSPARENT     0x8000
#endif

#ifndef TBSTYLE_TOOLTIPS
    #define TBSTYLE_TOOLTIPS        0x0100
#endif

// Messages
#ifndef TB_GETSTYLE
    #define TB_SETSTYLE             (WM_USER + 56)
    #define TB_GETSTYLE             (WM_USER + 57)
#endif

#ifndef TB_HITTEST
    #define TB_HITTEST              (WM_USER + 69)
#endif

#ifndef TB_GETMAXSIZE
    #define TB_GETMAXSIZE           (WM_USER + 83)
#endif

// these values correspond to those used by comctl32.dll
#define DEFAULTBITMAPX   16
#define DEFAULTBITMAPY   15

// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxToolBar, wxControl)

/*
    TOOLBAR PROPERTIES
        tool
            bitmap
            bitmap2
            tooltip
            longhelp
            radio (bool)
            toggle (bool)
        separator
        style ( wxNO_BORDER | wxTB_HORIZONTAL)
        bitmapsize
        margins
        packing
        separation

        dontattachtoframe
*/

BEGIN_EVENT_TABLE(wxToolBar, wxToolBarBase)
    EVT_MOUSE_EVENTS(wxToolBar::OnMouseEvent)
    EVT_SYS_COLOUR_CHANGED(wxToolBar::OnSysColourChanged)
    EVT_ERASE_BACKGROUND(wxToolBar::OnEraseBackground)
END_EVENT_TABLE()

// ----------------------------------------------------------------------------
// private classes
// ----------------------------------------------------------------------------

class wxToolBarTool : public wxToolBarToolBase
{
public:
    wxToolBarTool(wxToolBar *tbar,
                  int id,
                  const wxString& label,
                  const wxBitmap& bmpNormal,
                  const wxBitmap& bmpDisabled,
                  wxItemKind kind,
                  wxObject *clientData,
                  const wxString& shortHelp,
                  const wxString& longHelp)
        : wxToolBarToolBase(tbar, id, label, bmpNormal, bmpDisabled, kind,
                            clientData, shortHelp, longHelp)
    {
        m_nSepCount = 0;
    }

    wxToolBarTool(wxToolBar *tbar, wxControl *control)
        : wxToolBarToolBase(tbar, control)
    {
        m_nSepCount = 1;
    }

    virtual void SetLabel(const wxString& label)
    {
        if ( label == m_label )
            return;

        wxToolBarToolBase::SetLabel(label);

        // we need to update the label shown in the toolbar because it has a
        // pointer to the internal buffer of the old label
        //
        // TODO: use TB_SETBUTTONINFO
    }

    // set/get the number of separators which we use to cover the space used by
    // a control in the toolbar
    void SetSeparatorsCount(size_t count) { m_nSepCount = count; }
    size_t GetSeparatorsCount() const { return m_nSepCount; }

private:
    size_t m_nSepCount;

    DECLARE_NO_COPY_CLASS(wxToolBarTool)
};


// ============================================================================
// implementation
// ============================================================================

// ----------------------------------------------------------------------------
// wxToolBarTool
// ----------------------------------------------------------------------------

wxToolBarToolBase *wxToolBar::CreateTool(int id,
                                         const wxString& label,
                                         const wxBitmap& bmpNormal,
                                         const wxBitmap& bmpDisabled,
                                         wxItemKind kind,
                                         wxObject *clientData,
                                         const wxString& shortHelp,
                                         const wxString& longHelp)
{
    return new wxToolBarTool(this, id, label, bmpNormal, bmpDisabled, kind,
                             clientData, shortHelp, longHelp);
}

wxToolBarToolBase *wxToolBar::CreateTool(wxControl *control)
{
    return new wxToolBarTool(this, control);
}

// ----------------------------------------------------------------------------
// wxToolBar construction
// ----------------------------------------------------------------------------

void wxToolBar::Init()
{
    m_hBitmap = 0;
    m_disabledImgList = NULL;

    m_nButtons = 0;

    m_defaultWidth = DEFAULTBITMAPX;
    m_defaultHeight = DEFAULTBITMAPY;

    m_pInTool = 0;
}

bool wxToolBar::Create(wxWindow *parent,
                       wxWindowID id,
                       const wxPoint& pos,
                       const wxSize& size,
                       long style,
                       const wxString& name)
{
    // common initialisation
    if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
        return false;

    // MSW-specific initialisation
    if ( !MSWCreateToolbar(pos, size) )
        return false;

    wxSetCCUnicodeFormat(GetHwnd());

    // set up the colors and fonts
    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE));
    SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));

    // workaround for flat toolbar on Windows XP classic style: we have to set
    // the style after creating the control, doing it at creation time doesn't
    // work
#if wxUSE_UXTHEME
    if ( style & wxTB_FLAT )
    {
        LRESULT style = ::SendMessage(GetHwnd(), TB_GETSTYLE, 0, 0L);

        if ( !(style & TBSTYLE_FLAT) )
        {
            ::SendMessage(GetHwnd(), TB_SETSTYLE, 0, style | TBSTYLE_FLAT);
        }
    }
#endif // wxUSE_UXTHEME

    return true;
}

bool wxToolBar::MSWCreateToolbar(const wxPoint& pos, const wxSize& size)
{
    if ( !MSWCreateControl(TOOLBARCLASSNAME, wxEmptyString, pos, size) )
        return false;

    // toolbar-specific post initialisation
    ::SendMessage(GetHwnd(), TB_BUTTONSTRUCTSIZE, sizeof(TBBUTTON), 0);

    return true;
}

void wxToolBar::Recreate()
{
    const HWND hwndOld = GetHwnd();
    if ( !hwndOld )
    {
        // we haven't been created yet, no need to recreate
        return;
    }

    // get the position and size before unsubclassing the old toolbar
    const wxPoint pos = GetPosition();
    const wxSize size = GetSize();

    UnsubclassWin();

    if ( !MSWCreateToolbar(pos, size) )
    {
        // what can we do?
        wxFAIL_MSG( _T("recreating the toolbar failed") );

        return;
    }

    // reparent all our children under the new toolbar
    for ( wxWindowList::compatibility_iterator node = m_children.GetFirst();
          node;
          node = node->GetNext() )
    {
        wxWindow *win = node->GetData();
        if ( !win->IsTopLevel() )
            ::SetParent(GetHwndOf(win), GetHwnd());
    }

    // only destroy the old toolbar now -- after all the children had been
    // reparented
    ::DestroyWindow(hwndOld);

    // it is for the old bitmap control and can't be used with the new one
    if ( m_hBitmap )
    {
        ::DeleteObject((HBITMAP) m_hBitmap);
        m_hBitmap = 0;
    }

    if ( m_disabledImgList )
    {
        delete m_disabledImgList;
        m_disabledImgList = NULL;
    }

    Realize();
}

wxToolBar::~wxToolBar()
{
    // we must refresh the frame size when the toolbar is deleted but the frame
    // is not - otherwise toolbar leaves a hole in the place it used to occupy
    wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
    if ( frame && !frame->IsBeingDeleted() )
    {
        frame->SendSizeEvent();
    }

    if ( m_hBitmap )
    {
        ::DeleteObject((HBITMAP) m_hBitmap);
    }

    delete m_disabledImgList;
}

wxSize wxToolBar::DoGetBestSize() const
{
    wxSize sizeBest;

    SIZE size;
    if ( !::SendMessage(GetHwnd(), TB_GETMAXSIZE, 0, (LPARAM)&size) )
    {
        // maybe an old (< 0x400) Windows version? try to approximate the
        // toolbar size ourselves
        sizeBest = GetToolSize();
        sizeBest.y += 2 * ::GetSystemMetrics(SM_CYBORDER); // Add borders
        sizeBest.x *= GetToolsCount();

        // reverse horz and vertical components if necessary
        if ( HasFlag(wxTB_VERTICAL) )
        {
            int t = sizeBest.x;
            sizeBest.x = sizeBest.y;
            sizeBest.y = t;
        }
    }
    else
    {
        sizeBest.x = size.cx;
        sizeBest.y = size.cy;
    }

    CacheBestSize(sizeBest);
    return sizeBest;
}

WXDWORD wxToolBar::MSWGetStyle(long style, WXDWORD *exstyle) const
{
    // toolbars never have border, giving one to them results in broken
    // appearance
    WXDWORD msStyle = wxControl::MSWGetStyle
                      (
                        (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
                      );

    // always include this one, it never hurts and setting it later only if we
    // do have tooltips wouldn't work
    msStyle |= TBSTYLE_TOOLTIPS;

    if ( style & (wxTB_FLAT | wxTB_HORZ_LAYOUT) )
    {
        // static as it doesn't change during the program lifetime
        static int s_verComCtl = wxApp::GetComCtl32Version();

        // comctl32.dll 4.00 doesn't support the flat toolbars and using this
        // style with 6.00 (part of Windows XP) leads to the toolbar with
        // incorrect background colour - and not using it still results in the
        // correct (flat) toolbar, so don't use it there
        if ( s_verComCtl > 400 && s_verComCtl < 600 )
        {
            msStyle |= TBSTYLE_FLAT | TBSTYLE_TRANSPARENT;
        }

        if ( s_verComCtl >= 470 && style & wxTB_HORZ_LAYOUT )
        {
            msStyle |= TBSTYLE_LIST;
        }
    }

    if ( style & wxTB_NODIVIDER )
        msStyle |= CCS_NODIVIDER;

    if ( style & wxTB_NOALIGN )
        msStyle |= CCS_NOPARENTALIGN;

    if ( style & wxTB_VERTICAL )
        msStyle |= CCS_VERT;

    return msStyle;
}

// ----------------------------------------------------------------------------
// adding/removing tools
// ----------------------------------------------------------------------------

bool wxToolBar::DoInsertTool(size_t WXUNUSED(pos), wxToolBarToolBase *tool)
{
    // nothing special to do here - we really create the toolbar buttons in