0d3820b348
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@176 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
135 lines
5.3 KiB
C++
135 lines
5.3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: ownerdrw.h
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// Purpose: interface for owner-drawn GUI elements
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 11.11.97
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// RCS-ID: $Id$
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// Copyright: (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
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// Licence: wxWindows license
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _OWNERDRW_H
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#define _OWNERDRW_H
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#ifdef __GNUG__
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#pragma interface "ownerdrw.h"
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#endif
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typedef wxColour wxColor;
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typedef unsigned int uint;
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// ----------------------------------------------------------------------------
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// wxOwnerDrawn - a mix-in base class, derive from it to implement owner-drawn
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// behaviour
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//
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// wxOwnerDrawn supports drawing of an item with non standard font, color and
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// also supports 3 bitmaps: either a checked/unchecked bitmap for a checkable
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// element or one unchangeable bitmap otherwise.
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// ----------------------------------------------------------------------------
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class WXDLLEXPORT wxOwnerDrawn
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{
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public:
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// ctor & dtor
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wxOwnerDrawn(const wxTString& str = "",
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bool bCheckable = FALSE,
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bool bMenuItem = FALSE); // ## kludge for colors
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virtual ~wxOwnerDrawn() { }
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// fix appearance
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inline void SetFont(const wxFont& font)
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{ m_font = font; m_bOwnerDrawn = TRUE; }
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inline wxFont& GetFont() const { return (wxFont &)m_font; }
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inline void SetTextColour(const wxColour& colText)
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{ m_colText = colText; m_bOwnerDrawn = TRUE; }
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inline wxColour& GetTextColour() const { return (wxColour&) m_colText; }
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inline void SetBackgroundColour(const wxColour& colBack)
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{ m_colBack = colBack; m_bOwnerDrawn = TRUE; }
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inline wxColour& GetBackgroundColour() const
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{ return (wxColour&) m_colBack ; }
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inline void SetBitmaps(const wxBitmap& bmpChecked,
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const wxBitmap& bmpUnchecked = wxNullBitmap)
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{ m_bmpChecked = bmpChecked;
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m_bmpUnchecked = bmpUnchecked;
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m_bOwnerDrawn = TRUE; }
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inline wxBitmap& GetBitmap(bool bChecked = TRUE) const
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{ return (wxBitmap &)(bChecked ? m_bmpChecked : m_bmpUnchecked); }
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// the height of the menu checkmark (or bitmap) is determined by the font
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// for the current item, but the width should be always the same (for the
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// items to be aligned), so by default it's taken to be the same as for
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// the last item (and default width for the first one).
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//
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// NB: default is too small for bitmaps, but ok for checkmarks.
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inline void SetMarginWidth(int nWidth)
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{ ms_nLastMarginWidth = m_nMarginWidth = (uint) nWidth;
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if ( ((uint) nWidth) != ms_nDefaultMarginWidth ) m_bOwnerDrawn = TRUE; }
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inline int GetMarginWidth() const { return (int) m_nMarginWidth; }
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inline static int GetDefaultMarginWidth() { return (int) ms_nDefaultMarginWidth; }
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// accessors
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void SetName(const wxString& strName) { m_strName = strName; }
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const wxString& GetName() const { return m_strName; }
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bool IsCheckable() const { return m_bCheckable; }
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// this function might seem strange, but if it returns FALSE it means that
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// no non-standard attribute are set, so there is no need for this control
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// to be owner-drawn. Moreover, you can force owner-drawn to FALSE if you
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// want to change, say, the color for the item but only if it is owner-drawn
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// (see wxMenuItem::wxMenuItem for example)
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inline bool IsOwnerDrawn() const { return m_bOwnerDrawn; }
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inline void ResetOwnerDrawn() { m_bOwnerDrawn = FALSE; }
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public:
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// constants used in OnDrawItem
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// (they have the same values as corresponding Win32 constants)
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enum wxODAction
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{
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wxODDrawAll = 0x0001, // redraw entire control
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wxODSelectChanged = 0x0002, // selection changed (see Status.Select)
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wxODFocusChanged = 0x0004, // keyboard focus changed (see Status.Focus)
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};
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enum wxODStatus
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{
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wxODSelected = 0x0001, // control is currently selected
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wxODGrayed = 0x0002, // item is to be grayed
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wxODDisabled = 0x0004, // item is to be drawn as disabled
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wxODChecked = 0x0008, // item is to be checked
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wxODHasFocus = 0x0010, // item has the keyboard focus
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wxODDefault = 0x0020, // item is the default item
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};
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// virtual functions to implement drawing (return TRUE if processed)
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virtual bool OnMeasureItem(uint *pwidth, uint *pheight);
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virtual bool OnDrawItem(wxDC& dc, const wxRect& rc, wxODAction act, wxODStatus stat);
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protected:
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wxString m_strName; // label for a manu item
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private:
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static uint ms_nDefaultMarginWidth; // menu check mark width
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static uint ms_nLastMarginWidth; // handy for aligning all items
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bool m_bCheckable, // used only for menu or check listbox items
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m_bOwnerDrawn; // true if something is non standard
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wxFont m_font; // font to use for drawing
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wxColor m_colText, // color ----"---"---"----
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m_colBack; // background color
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wxBitmap m_bmpChecked, // bitmap to put near the item
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m_bmpUnchecked; // (checked is used also for 'uncheckable' items)
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uint m_nHeight, // font height
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m_nMarginWidth; // space occupied by bitmap to the left of the item
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};
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#endif //_OWNERDRW_H
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