wxWidgets/include/wx/fontpicker.h

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/////////////////////////////////////////////////////////////////////////////
// Name: wx/fontpicker.h
// Purpose: wxFontPickerCtrl base header
// Author: Francesco Montorsi
// Modified by:
// Created: 14/4/2006
// Copyright: (c) Francesco Montorsi
// RCS-ID: $Id$
// Licence: wxWindows Licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_FONTPICKER_H_BASE_
#define _WX_FONTPICKER_H_BASE_
#include "wx/defs.h"
#if wxUSE_FONTPICKERCTRL
#include "wx/pickerbase.h"
class WXDLLIMPEXP_CORE wxFontPickerEvent;
extern WXDLLEXPORT_DATA(const wxChar) wxFontPickerWidgetNameStr[];
extern WXDLLEXPORT_DATA(const wxChar) wxFontPickerCtrlNameStr[];
// ----------------------------------------------------------------------------
// wxFontPickerWidgetBase: a generic abstract interface which must be
// implemented by controls used by wxFontPickerCtrl
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxFontPickerWidgetBase
{
public:
wxFontPickerWidgetBase() { m_selectedFont = *wxNORMAL_FONT; }
virtual ~wxFontPickerWidgetBase() {}
wxFont GetSelectedFont() const
{ return m_selectedFont; }
virtual void SetSelectedFont(const wxFont &f)
{ m_selectedFont = f; UpdateFont(); }
protected:
virtual void UpdateFont() = 0;
// the current font (may be invalid if none)
// NOTE: don't call this m_font as wxWindow::m_font already exists
wxFont m_selectedFont;
};
// Styles which must be supported by all controls implementing wxFontPickerWidgetBase
// NB: these styles must be defined to carefully-chosen values to
// avoid conflicts with wxButton's styles
// keeps the label of the button updated with the fontface name + font size
// E.g. choosing "Times New Roman bold, italic with size 10" from the fontdialog,
// updates the wxFontButtonGeneric's label (overwriting any previous label)
// with the "Times New Roman, 10" text (only fontface + fontsize is displayed
// to avoid extralong labels).
#define wxFNTP_FONTDESC_AS_LABEL 0x0008
// uses the currently selected font to draw the label of the button
#define wxFNTP_USEFONT_FOR_LABEL 0x0010
// since GTK > 2.4, there is GtkFontButton
#if defined(__WXGTK24__) && !defined(__WXUNIVERSAL__)
#include "wx/gtk/fontpicker.h"
#define wxFontPickerWidget wxFontButton
#else
#include "wx/generic/fontpickerg.h"
#define wxFontPickerWidget wxGenericFontButton
#endif
// ----------------------------------------------------------------------------
// wxFontPickerCtrl specific flags
// ----------------------------------------------------------------------------
#define wxFNTP_USE_TEXTCTRL (wxPB_USE_TEXTCTRL)
#define wxFNTP_DEFAULT_STYLE (wxFNTP_FONTDESC_AS_LABEL|wxFNTP_USEFONT_FOR_LABEL)
// not a style but rather the default value of the maximum pointsize allowed
#define wxFNTP_MAXPOINT_SIZE 100
// ----------------------------------------------------------------------------
// wxFontPickerCtrl: platform-independent class which embeds the
// platform-dependent wxFontPickerWidget andm if wxFNTP_USE_TEXTCTRL style is
// used, a textctrl next to it.
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxFontPickerCtrl : public wxPickerBase
{
public:
wxFontPickerCtrl()
: m_bIgnoreNextTextCtrlUpdate(false),
m_nMaxPointSize(wxFNTP_MAXPOINT_SIZE)
{
}
virtual ~wxFontPickerCtrl() {}
wxFontPickerCtrl(wxWindow *parent,
wxWindowID id,
const wxFont& initial = wxNullFont,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxFNTP_DEFAULT_STYLE,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxFontPickerCtrlNameStr)
: m_bIgnoreNextTextCtrlUpdate(false),
m_nMaxPointSize(wxFNTP_MAXPOINT_SIZE)
{
Create(parent, id, initial, pos, size, style, validator, name);
}
bool Create(wxWindow *parent,
wxWindowID id,
const wxFont& initial = wxNullFont,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
long style = wxFNTP_DEFAULT_STYLE,
const wxValidator& validator = wxDefaultValidator,
const wxString& name = wxFontPickerCtrlNameStr);
public: // public API
// get the font chosen
wxFont GetSelectedFont() const
{ return ((wxFontPickerWidget *)m_picker)->GetSelectedFont(); }
// sets currently displayed font
void SetSelectedFont(const wxFont& f);
// set/get the max pointsize
void SetMaxPointSize(unsigned int max)
{ m_nMaxPointSize=max; }
unsigned int GetMaxPointSize() const
{ return m_nMaxPointSize; }
public: // internal functions
void UpdatePickerFromTextCtrl();
void UpdateTextCtrlFromPicker();
// event handler for our picker
void OnFontChange(wxFontPickerEvent &);
// used to convert wxString <-> wxFont
virtual wxString Font2String(const wxFont &font);
virtual wxFont String2Font(const wxString &font);
protected:
// extracts the style for our picker from wxFontPickerCtrl's style
long GetPickerStyle(long style) const
{ return (style & (wxFNTP_FONTDESC_AS_LABEL|wxFNTP_USEFONT_FOR_LABEL)); }
// true if the next UpdateTextCtrl() call is to ignore
bool m_bIgnoreNextTextCtrlUpdate;
// the maximum pointsize allowed to the user
unsigned int m_nMaxPointSize;
private:
DECLARE_DYNAMIC_CLASS(wxFontPickerCtrl)
};
// ----------------------------------------------------------------------------
// wxFontPickerEvent: used by wxFontPickerCtrl only
// ----------------------------------------------------------------------------
BEGIN_DECLARE_EVENT_TYPES()
DECLARE_EXPORTED_EVENT_TYPE(WXDLLIMPEXP_CORE, wxEVT_COMMAND_FONTPICKER_CHANGED, 1102)
END_DECLARE_EVENT_TYPES()
class WXDLLIMPEXP_CORE wxFontPickerEvent : public wxCommandEvent
{
public:
wxFontPickerEvent() {}
wxFontPickerEvent(wxObject *generator, int id, const wxFont &f)
: wxCommandEvent(wxEVT_COMMAND_FONTPICKER_CHANGED, id),
m_font(f)
{
SetEventObject(generator);
}
wxFont GetFont() const { return m_font; }
void SetFont(const wxFont &c) { m_font = c; }
// default copy ctor, assignment operator and dtor are ok
virtual wxEvent *Clone() const { return new wxFontPickerEvent(*this); }
private:
wxFont m_font;
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(wxFontPickerEvent)
};
// ----------------------------------------------------------------------------
// event types and macros
// ----------------------------------------------------------------------------
typedef void (wxEvtHandler::*wxFontPickerEventFunction)(wxFontPickerEvent&);
#define wxFontPickerEventHandler(func) \
(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(wxFontPickerEventFunction, &func)
#define EVT_FONTPICKER_CHANGED(id, fn) \
wx__DECLARE_EVT1(wxEVT_COMMAND_FONTPICKER_CHANGED, id, wxFontPickerEventHandler(fn))
#endif // wxUSE_FONTPICKERCTRL
#endif
// _WX_FONTPICKER_H_BASE_