fontdlg.cpp

很牛的GUI源码wxWidgets-2.8.0.zip 可在多种平台下运行.

/////////////////////////////////////////////////////////////////////////////
// Name:        src/mac/carbon/fontdlg.cpp
// Purpose:     wxFontDialog class for carbon 10.2+.
// Author:      Ryan Norton
// Modified by:
// Created:     1998-01-01
// RCS-ID:      $Id: fontdlg.cpp,v 1.39 2006/10/21 16:39:41 VZ Exp $
// Copyright:   (c) Ryan Norton
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

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

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

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

#if wxUSE_FONTDLG

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/intl.h"
    #include "wx/wxchar.h"
    #include "wx/dcclient.h"
    #include "wx/frame.h"
    #include "wx/textctrl.h"
    #include "wx/listbox.h"
    #include "wx/checkbox.h"
    #include "wx/choice.h"
    #include "wx/sizer.h"
    #include "wx/stattext.h"
    #include "wx/button.h"
#endif

#include "wx/fontdlg.h"

#if wxMAC_USE_EXPERIMENTAL_FONTDIALOG

IMPLEMENT_DYNAMIC_CLASS(wxFontDialog, wxDialog)

#include "wx/mac/private.h"

// ---------------------------------------------------------------------------
// wxFontDialog
// ---------------------------------------------------------------------------

static const EventTypeSpec eventList[] =
{
    { kEventClassFont, kEventFontSelection } ,
} ;


pascal OSStatus wxMacCarbonFontPanelHandler(EventHandlerCallRef nextHandler, EventRef event, void *userData)
{
    OSStatus result = eventNotHandledErr ;
    wxFontDialog *fontdialog = (wxFontDialog*) userData ;
    wxFontData& fontdata= fontdialog->GetFontData() ;

    wxMacCarbonEvent cEvent( event );
    switch(cEvent.GetKind())
    {
        case kEventFontSelection :
        {
            ATSUFontID fontId = 0 ;
            if ( cEvent.GetParameter<ATSUFontID>(kEventParamATSUFontID, &fontId) == noErr )
            {
                FMFontStyle fontStyle = cEvent.GetParameter<FMFontStyle>(kEventParamFMFontStyle);
                FMFontSize fontSize = cEvent.GetParameter<FMFontSize>(kEventParamFMFontSize);

                CFStringRef cfName = NULL;
#if 1
                FMFontFamily fontFamily = cEvent.GetParameter<FMFontFamily>(kEventParamFMFontFamily);
                ATSFontFamilyRef atsfontfamilyref = FMGetATSFontFamilyRefFromFontFamily( fontFamily ) ;
                OSStatus err = ATSFontFamilyGetName( atsfontfamilyref , kATSOptionFlagsDefault , &cfName ) ;
                wxASSERT_MSG( err == noErr , wxT("ATSFontFamilyGetName failed") );
#else
                // we don't use the ATSU naming anymore
                ByteCount actualLength = 0;
                char *c = NULL;
                OSStatus err = ATSUFindFontName(fontId , kFontFamilyName, kFontUnicodePlatform, kFontNoScriptCode,
                    kFontNoLanguageCode , 0 , NULL , &actualLength , NULL );
                if ( err == noErr)
                {
                    actualLength += 1 ;
                    char *c = (char*)malloc( actualLength );
                    err = ATSUFindFontName(fontId, kFontFamilyName, kFontUnicodePlatform, kFontNoScriptCode,
                        kFontNoLanguageCode, actualLength, c , NULL, NULL);
                    cfName = CFStringCreateWithCharacters(NULL, (UniChar*) c, (actualLength-1) >> 1);
                }
                else
                {
                    err = ATSUFindFontName(fontId , kFontFamilyName, kFontNoPlatformCode, kFontNoScriptCode,
                    kFontNoLanguageCode , 0 , NULL , &actualLength , NULL );
                    if ( err == noErr )
                    {
                        actualLength += 1 ;
                        c = (char*)malloc(actualLength);
                        err = ATSUFindFontName(fontId, kFontFamilyName, kFontNoPlatformCode, kFontNoScriptCode,
                            kFontNoLanguageCode, actualLength, c , NULL, NULL);
                        c[actualLength-1] = 0;
                        cfName = CFStringCreateWithCString(NULL, c, kCFStringEncodingMacRoman );
                    }
                }
                if ( c!=NULL )
                    free(c);
#endif
                 
                if ( cfName!=NULL )
                {
                    fontdata.m_chosenFont.SetFaceName(wxMacCFStringHolder(cfName).AsString(wxLocale::GetSystemEncoding()));
                    fontdata.m_chosenFont.SetPointSize(fontSize);
                    fontdata.m_chosenFont.SetStyle(fontStyle & italic ? wxFONTSTYLE_ITALIC : wxFONTSTYLE_NORMAL);
                    fontdata.m_chosenFont.SetUnderlined((fontStyle & underline)!=0);
                    fontdata.m_chosenFont.SetWeight(fontStyle & bold ? wxFONTWEIGHT_BOLD : wxFONTWEIGHT_NORMAL);
                }
            }

            RGBColor fontColor ;
            if ( cEvent.GetParameter<RGBColor>(kEventParamFontColor, &fontColor) == noErr )
                fontdata.m_fontColour.FromRGBColor((WXCOLORREF*) &fontColor);
            else
            {
                CFDictionaryRef dict ;
                if ( cEvent.GetParameter<CFDictionaryRef>(kEventParamDictionary, &dict) == noErr )
                {
                    CFDictionaryRef attributesDict ;
                    if ( CFDictionaryGetValueIfPresent(dict, kFontPanelAttributesKey, (const void **)&attributesDict) )
                    {
                        CFDataRef tagsData;
                        CFDataRef sizesData;
                        CFDataRef valuesData;
                        if ( CFDictionaryGetValueIfPresent(attributesDict, kFontPanelAttributeTagsKey, (const void **)&tagsData) &&
                             CFDictionaryGetValueIfPresent(attributesDict, kFontPanelAttributeSizesKey, (const void **)&sizesData) &&
                             CFDictionaryGetValueIfPresent(attributesDict, kFontPanelAttributeValuesKey, (const void **)&valuesData) )
                        {
                            ItemCount count = CFDataGetLength(tagsData)/sizeof(ATSUAttributeTag);
                            ATSUAttributeTag *tagPtr = (ATSUAttributeTag *)CFDataGetBytePtr(tagsData);
                            ByteCount *sizePtr = (ByteCount *)CFDataGetBytePtr(sizesData);
                            UInt32 *bytePtr = (UInt32*)CFDataGetBytePtr(valuesData);
                            ATSUAttributeValuePtr valuesPtr = bytePtr ;
                            for ( ItemCount i = 0 ; i < count ; ++i)
                            {
                                if ( tagPtr[i] == kATSUColorTag && sizePtr[i] == sizeof(RGBColor))
                                {
                                    fontdata.m_fontColour.FromRGBColor((WXCOLORREF*) valuesPtr);
                                    break ;
                                }
                                bytePtr = (UInt32*)( (UInt8*)bytePtr + sizePtr[i]);
                            }
                        }
                    }
                }
            }
        }
            break ;
    } ;

    return result ;
}

DEFINE_ONE_SHOT_HANDLER_GETTER( wxMacCarbonFontPanelHandler )

wxFontDialog::wxFontDialog()
{
}

wxFontDialog::wxFontDialog(wxWindow *parent, const wxFontData&  data)
{
    Create(parent, data);
}

wxFontDialog::~wxFontDialog()
{
}

bool wxFontDialog::Create(wxWindow *parent, const wxFontData& data)
{
    m_fontData = data;
    return true ;
}

int wxFontDialog::ShowModal()
{
    OSStatus err ;
    wxFont font = *wxNORMAL_FONT ;
    if ( m_fontData.m_initialFont.Ok() )
    {
        font = m_fontData.m_initialFont ;
    }

    ATSUStyle style = (ATSUStyle)font.MacGetATSUStyle();
    err = SetFontInfoForSelection (kFontSelectionATSUIType,1, &style , NULL);
    // just clicking on ENTER will not send us any font setting event, therefore we have to make sure
    // that field is already correct
    m_fontData.m_chosenFont = font ;

    EventHandlerRef handler ;

    err = InstallApplicationEventHandler( GetwxMacCarbonFontPanelHandlerUPP(), GetEventTypeCount(eventList), eventList, this , &handler );

    if ( !FPIsFontPanelVisible() )
        FPShowHideFontPanel();

    int retval = RunMixedFontDialog(this);

    ::RemoveEventHandler(handler);

    return retval ;
}

#else

#if !USE_NATIVE_FONT_DIALOG_FOR_MACOSX

#undef wxFontDialog

#include "wx/mac/fontdlg.h"

#include "wx/fontenum.h"
#include "wx/colordlg.h"
#include "wx/spinctrl.h"

// ---------------------------------------------------------------------------
// wxFontDialog stub for mac OS's without a native font dialog
// ---------------------------------------------------------------------------

static const wxChar *FontFamilyIntToString(int family);
static int FontFamilyStringToInt(const wxChar *family);


//-----------------------------------------------------------------------------
// helper class - wxFontPreviewCtrl
//-----------------------------------------------------------------------------

class WXDLLEXPORT wxFontPreviewCtrl : public wxWindow
{
public:
    wxFontPreviewCtrl(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition, const wxSize& sz = wxDefaultSize, long style = 0) :
        wxWindow(parent, id, pos, sz, style)
    {
        SetBackgroundColour(*wxWHITE);
    }

private:
    void OnPaint(wxPaintEvent& event);
    DECLARE_EVENT_TABLE()
};

BEGIN_EVENT_TABLE(wxFontPreviewCtrl, wxWindow)
    EVT_PAINT(wxFontPreviewCtrl::OnPaint)
END_EVENT_TABLE()

void wxFontPreviewCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
{
    wxPaintDC dc(this);

    wxSize size = GetSize();
    wxFont font = GetFont();

    if ( font.Ok() )
    {
        dc.SetFont(font);
        // Calculate vertical centre
        long w = 0, h = 0;
        dc.GetTextExtent( wxT("X"), &w, &h);
        dc.SetTextForeground(GetForegroundColour());
        dc.SetClippingRegion(2, 2, size.x-4, size.y-4);
        dc.DrawText(_("ABCDEFGabcdefg12345"),
                     10, size.y/2 - h/2);
        dc.DestroyClippingRegion();
    }
}

/*
 * A control for displaying a small preview of a colour or bitmap
 */

class wxFontColourSwatchCtrl: public wxControl
{
    DECLARE_CLASS(wxFontColourSwatchCtrl)
public:
    wxFontColourSwatchCtrl(wxWindow* parent, wxWindowID id, const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0);
    virtual ~wxFontColourSwatchCtrl();

    void OnPaint(wxPaintEvent& event);
    void OnMouseEvent(wxMouseEvent& event);

    void SetColour(const wxColour& colour) { m_colour = colour; SetBackgroundColour(m_colour); }

    wxColour& GetColour() { return m_colour; }

    virtual wxSize DoGetBestSize() const { return GetSize(); }

protected:
    wxColour    m_colour;

DECLARE_EVENT_TABLE()
};

/*
 * A control for displaying a small preview of a colour or bitmap
 */

BEGIN_EVENT_TABLE(wxFontColourSwatchCtrl, wxControl)
    EVT_MOUSE_EVENTS(wxFontColourSwatchCtrl::OnMouseEvent)
END_EVENT_TABLE()

IMPLEMENT_CLASS(wxFontColourSwatchCtrl, wxControl)

wxFontColourSwatchCtrl::wxFontColourSwatchCtrl(wxWindow* parent, wxWindowID id, const wxPoint& pos, const wxSize& size, long style):
    wxControl(parent, id, pos, size, style)
{
    SetColour(* wxWHITE);
    SetBackgroundStyle(wxBG_STYLE_COLOUR);
}

wxFontColourSwatchCtrl::~wxFontColourSwatchCtrl()
{
}

void wxFontColourSwatchCtrl::OnMouseEvent(wxMouseEvent& event)
{
    if (event.LeftDown())
    {
        wxWindow* parent = GetParent();
        while (parent != NULL && !parent->IsKindOf(CLASSINFO(wxDialog)) && !parent->IsKindOf(CLASSINFO(wxFrame)))
            parent = parent->GetParent();

        wxColourData data;
        data.SetChooseFull(true);
        data.SetColour(m_colour);
        wxColourDialog *dialog = new wxColourDialog(parent, &data);
        // Crashes on wxMac (no m_peer)
#ifndef __WXMAC__
        dialog->SetTitle(_("Background colour"));
#endif
        if (dialog->ShowModal() == wxID_OK)
        {
            wxColourData retData = dialog->GetColourData();
            m_colour = retData.GetColour();
            SetBackgroundColour(m_colour);
        }
        dialog->Destroy();
        Refresh();

        wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId());
        GetEventHandler()->ProcessEvent(event);
    }
}

/*!
 * wxFontDialog type definition
 */

IMPLEMENT_DYNAMIC_CLASS( wxFontDialog, wxDialog )

/*!
 * wxFontDialog event table definition
 */

BEGIN_EVENT_TABLE( wxFontDialog, wxDialog )
    EVT_LISTBOX( wxID_FONTDIALOG_FACENAME, wxFontDialog::OnFontdialogFacenameSelected )
    EVT_SPINCTRL( wxID_FONTDIALOG_FONTSIZE, wxFontDialog::OnFontdialogFontsizeUpdated )
    EVT_TEXT( wxID_FONTDIALOG_FONTSIZE, wxFontDialog::OnFontdialogFontsizeTextUpdated )
    EVT_CHECKBOX( wxID_FONTDIALOG_BOLD, wxFontDialog::OnFontdialogBoldClick )
    EVT_CHECKBOX( wxID_FONTDIALOG_ITALIC, wxFontDialog::OnFontdialogItalicClick )
    EVT_CHECKBOX( wxID_FONTDIALOG_UNDERLINED, wxFontDialog::OnFontdialogUnderlinedClick )
    EVT_BUTTON( wxID_OK, wxFontDialog::OnOkClick )
    EVT_BUTTON(wxID_FONTDIALOG_COLOUR, wxFontDialog::OnColourChanged)
END_EVENT_TABLE()

/*!
 * wxFontDialog constructors
 */

wxFontDialog::wxFontDialog( )
{
    m_dialogParent = NULL;
}

wxFontDialog::wxFontDialog(wxWindow* parent, const wxFontData& fontData)
{
    m_dialogParent = NULL;

    Create(parent, fontData);
}