b5dbe15d0b
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47254 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
411 lines
16 KiB
C++
411 lines
16 KiB
C++
///////////////////////////////////////////////////////////////////////////////
|
|
// Name: wx/renderer.h
|
|
// Purpose: wxRendererNative class declaration
|
|
// Author: Vadim Zeitlin
|
|
// Modified by:
|
|
// Created: 20.07.2003
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
|
|
// Licence: wxWindows licence
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
Renderers are used in wxWidgets for two similar but different things:
|
|
(a) wxUniversal uses them to draw everything, i.e. all the control
|
|
(b) all the native ports use them to draw generic controls only
|
|
|
|
wxUniversal needs more functionality than what is included in the base class
|
|
as it needs to draw stuff like scrollbars which are never going to be
|
|
generic. So we put the bare minimum needed by the native ports here and the
|
|
full wxRenderer class is declared in wx/univ/renderer.h and is only used by
|
|
wxUniveral (although note that native ports can load wxRenderer objects from
|
|
theme DLLs and use them as wxRendererNative ones, of course).
|
|
*/
|
|
|
|
#ifndef _WX_RENDERER_H_
|
|
#define _WX_RENDERER_H_
|
|
|
|
class WXDLLIMPEXP_FWD_CORE wxDC;
|
|
class WXDLLIMPEXP_FWD_CORE wxWindow;
|
|
|
|
#include "wx/gdicmn.h" // for wxPoint
|
|
#include "wx/colour.h"
|
|
#include "wx/font.h"
|
|
#include "wx/bitmap.h"
|
|
#include "wx/string.h"
|
|
|
|
// some platforms have their own renderers, others use the generic one
|
|
#if defined(__WXMSW__) || defined(__WXMAC__) || defined(__WXGTK__)
|
|
#define wxHAS_NATIVE_RENDERER
|
|
#else
|
|
#undef wxHAS_NATIVE_RENDERER
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// constants
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// control state flags used in wxRenderer and wxColourScheme
|
|
enum
|
|
{
|
|
wxCONTROL_DISABLED = 0x00000001, // control is disabled
|
|
wxCONTROL_FOCUSED = 0x00000002, // currently has keyboard focus
|
|
wxCONTROL_PRESSED = 0x00000004, // (button) is pressed
|
|
wxCONTROL_SPECIAL = 0x00000008, // control-specific bit:
|
|
wxCONTROL_ISDEFAULT = wxCONTROL_SPECIAL, // only for the buttons
|
|
wxCONTROL_ISSUBMENU = wxCONTROL_SPECIAL, // only for the menu items
|
|
wxCONTROL_EXPANDED = wxCONTROL_SPECIAL, // only for the tree items
|
|
wxCONTROL_SIZEGRIP = wxCONTROL_SPECIAL, // only for the status bar panes
|
|
wxCONTROL_FLAT = wxCONTROL_SPECIAL, // checkboxes only: flat border
|
|
wxCONTROL_CURRENT = 0x00000010, // mouse is currently over the control
|
|
wxCONTROL_SELECTED = 0x00000020, // selected item in e.g. listbox
|
|
wxCONTROL_CHECKED = 0x00000040, // (check/radio button) is checked
|
|
wxCONTROL_CHECKABLE = 0x00000080, // (menu) item can be checked
|
|
wxCONTROL_UNDETERMINED = wxCONTROL_CHECKABLE, // (check) undetermined state
|
|
|
|
wxCONTROL_FLAGS_MASK = 0x000000ff,
|
|
|
|
// this is a pseudo flag not used directly by wxRenderer but rather by some
|
|
// controls internally
|
|
wxCONTROL_DIRTY = 0x80000000
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// helper structs
|
|
// ----------------------------------------------------------------------------
|
|
|
|
// wxSplitterWindow parameters
|
|
struct WXDLLEXPORT wxSplitterRenderParams
|
|
{
|
|
// the only way to initialize this struct is by using this ctor
|
|
wxSplitterRenderParams(wxCoord widthSash_, wxCoord border_, bool isSens_)
|
|
: widthSash(widthSash_), border(border_), isHotSensitive(isSens_)
|
|
{
|
|
}
|
|
|
|
// the width of the splitter sash
|
|
const wxCoord widthSash;
|
|
|
|
// the width of the border of the splitter window
|
|
const wxCoord border;
|
|
|
|
// true if the splitter changes its appearance when the mouse is over it
|
|
const bool isHotSensitive;
|
|
};
|
|
|
|
|
|
// extra optional parameters for DrawHeaderButton
|
|
struct WXDLLEXPORT wxHeaderButtonParams
|
|
{
|
|
wxHeaderButtonParams()
|
|
: m_labelAlignment(wxALIGN_LEFT)
|
|
{ }
|
|
|
|
wxColour m_arrowColour;
|
|
wxColour m_selectionColour;
|
|
wxString m_labelText;
|
|
wxFont m_labelFont;
|
|
wxColour m_labelColour;
|
|
wxBitmap m_labelBitmap;
|
|
int m_labelAlignment;
|
|
};
|
|
|
|
enum wxHeaderSortIconType {
|
|
wxHDR_SORT_ICON_NONE, // Header button has no sort arrow
|
|
wxHDR_SORT_ICON_UP, // Header button an an up sort arrow icon
|
|
wxHDR_SORT_ICON_DOWN // Header button an a down sort arrow icon
|
|
};
|
|
|
|
|
|
// wxRendererNative interface version
|
|
struct WXDLLEXPORT wxRendererVersion
|
|
{
|
|
wxRendererVersion(int version_, int age_) : version(version_), age(age_) { }
|
|
|
|
// default copy ctor, assignment operator and dtor are ok
|
|
|
|
// the current version and age of wxRendererNative interface: different
|
|
// versions are incompatible (in both ways) while the ages inside the same
|
|
// version are upwards compatible, i.e. the version of the renderer must
|
|
// match the version of the main program exactly while the age may be
|
|
// highergreater or equal to it
|
|
//
|
|
// NB: don't forget to increment age after adding any new virtual function!
|
|
enum
|
|
{
|
|
Current_Version = 1,
|
|
Current_Age = 5
|
|
};
|
|
|
|
|
|
// check if the given version is compatible with the current one
|
|
static bool IsCompatible(const wxRendererVersion& ver)
|
|
{
|
|
return ver.version == Current_Version && ver.age >= Current_Age;
|
|
}
|
|
|
|
const int version;
|
|
const int age;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxRendererNative: abstracts drawing methods needed by the native controls
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxRendererNative
|
|
{
|
|
public:
|
|
// drawing functions
|
|
// -----------------
|
|
|
|
// draw the header control button (used by wxListCtrl) Returns optimal
|
|
// width for the label contents.
|
|
virtual int DrawHeaderButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0,
|
|
wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
|
|
wxHeaderButtonParams* params=NULL) = 0;
|
|
|
|
|
|
// Draw the contents of a header control button (label, sort arrows, etc.)
|
|
// Normally only called by DrawHeaderButton.
|
|
virtual int DrawHeaderButtonContents(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0,
|
|
wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
|
|
wxHeaderButtonParams* params=NULL) = 0;
|
|
|
|
// Returns the default height of a header button, either a fixed platform
|
|
// height if available, or a generic height based on the window's font.
|
|
virtual int GetHeaderButtonHeight(wxWindow *win) = 0;
|
|
|
|
|
|
// draw the expanded/collapsed icon for a tree control item
|
|
virtual void DrawTreeItemButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// draw the border for sash window: this border must be such that the sash
|
|
// drawn by DrawSash() blends into it well
|
|
virtual void DrawSplitterBorder(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// draw a (vertical) sash
|
|
virtual void DrawSplitterSash(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxSize& size,
|
|
wxCoord position,
|
|
wxOrientation orient,
|
|
int flags = 0) = 0;
|
|
|
|
// draw a combobox dropdown button
|
|
//
|
|
// flags may use wxCONTROL_PRESSED and wxCONTROL_CURRENT
|
|
virtual void DrawComboBoxDropButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// draw a dropdown arrow
|
|
//
|
|
// flags may use wxCONTROL_PRESSED and wxCONTROL_CURRENT
|
|
virtual void DrawDropArrow(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// draw check button
|
|
//
|
|
// flags may use wxCONTROL_CHECKED, wxCONTROL_UNDETERMINED and wxCONTROL_CURRENT
|
|
virtual void DrawCheckBox(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// draw blank button
|
|
//
|
|
// flags may use wxCONTROL_PRESSED, wxCONTROL_CURRENT and wxCONTROL_ISDEFAULT
|
|
virtual void DrawPushButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// draw rectangle indicating that an item in e.g. a list control
|
|
// has been selected or focused
|
|
//
|
|
// flags may use
|
|
// wxCONTROL_SELECTED (item is selected, e.g. draw background)
|
|
// wxCONTROL_CURRENT (item is the current item, e.g. dotted border)
|
|
// wxCONTROL_FOCUSED (the whole control has focus, e.g. blue background vs. grey otherwise)
|
|
virtual void DrawItemSelectionRect(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0) = 0;
|
|
|
|
// geometry functions
|
|
// ------------------
|
|
|
|
// get the splitter parameters: the x field of the returned point is the
|
|
// sash width and the y field is the border width
|
|
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win) = 0;
|
|
|
|
|
|
// pseudo constructors
|
|
// -------------------
|
|
|
|
// return the currently used renderer
|
|
static wxRendererNative& Get();
|
|
|
|
// return the generic implementation of the renderer
|
|
static wxRendererNative& GetGeneric();
|
|
|
|
// return the default (native) implementation for this platform
|
|
static wxRendererNative& GetDefault();
|
|
|
|
|
|
// changing the global renderer
|
|
// ----------------------------
|
|
|
|
#if wxUSE_DYNLIB_CLASS
|
|
// load the renderer from the specified DLL, the returned pointer must be
|
|
// deleted by caller if not NULL when it is not used any more
|
|
static wxRendererNative *Load(const wxString& name);
|
|
#endif // wxUSE_DYNLIB_CLASS
|
|
|
|
// set the renderer to use, passing NULL reverts to using the default
|
|
// renderer
|
|
//
|
|
// return the previous renderer used with Set() or NULL if none
|
|
static wxRendererNative *Set(wxRendererNative *renderer);
|
|
|
|
|
|
// miscellaneous stuff
|
|
// -------------------
|
|
|
|
// this function is used for version checking: Load() refuses to load any
|
|
// DLLs implementing an older or incompatible version; it should be
|
|
// implemented simply by returning wxRendererVersion::Current_XXX values
|
|
virtual wxRendererVersion GetVersion() const = 0;
|
|
|
|
// virtual dtor for any base class
|
|
virtual ~wxRendererNative();
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxDelegateRendererNative: allows reuse of renderers code
|
|
// ----------------------------------------------------------------------------
|
|
|
|
class WXDLLEXPORT wxDelegateRendererNative : public wxRendererNative
|
|
{
|
|
public:
|
|
wxDelegateRendererNative()
|
|
: m_rendererNative(GetGeneric()) { }
|
|
|
|
wxDelegateRendererNative(wxRendererNative& rendererNative)
|
|
: m_rendererNative(rendererNative) { }
|
|
|
|
|
|
virtual int DrawHeaderButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0,
|
|
wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
|
|
wxHeaderButtonParams* params = NULL)
|
|
{ return m_rendererNative.DrawHeaderButton(win, dc, rect, flags, sortArrow, params); }
|
|
|
|
virtual int DrawHeaderButtonContents(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0,
|
|
wxHeaderSortIconType sortArrow = wxHDR_SORT_ICON_NONE,
|
|
wxHeaderButtonParams* params = NULL)
|
|
{ return m_rendererNative.DrawHeaderButtonContents(win, dc, rect, flags, sortArrow, params); }
|
|
|
|
virtual int GetHeaderButtonHeight(wxWindow *win)
|
|
{ return m_rendererNative.GetHeaderButtonHeight(win); }
|
|
|
|
virtual void DrawTreeItemButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0)
|
|
{ m_rendererNative.DrawTreeItemButton(win, dc, rect, flags); }
|
|
|
|
virtual void DrawSplitterBorder(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0)
|
|
{ m_rendererNative.DrawSplitterBorder(win, dc, rect, flags); }
|
|
|
|
virtual void DrawSplitterSash(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxSize& size,
|
|
wxCoord position,
|
|
wxOrientation orient,
|
|
int flags = 0)
|
|
{ m_rendererNative.DrawSplitterSash(win, dc, size,
|
|
position, orient, flags); }
|
|
|
|
virtual void DrawComboBoxDropButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0)
|
|
{ m_rendererNative.DrawComboBoxDropButton(win, dc, rect, flags); }
|
|
|
|
virtual void DrawDropArrow(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0)
|
|
{ m_rendererNative.DrawDropArrow(win, dc, rect, flags); }
|
|
|
|
virtual void DrawCheckBox(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0 )
|
|
{ m_rendererNative.DrawCheckBox( win, dc, rect, flags ); }
|
|
|
|
virtual void DrawPushButton(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0 )
|
|
{ m_rendererNative.DrawPushButton( win, dc, rect, flags ); }
|
|
|
|
virtual void DrawItemSelectionRect(wxWindow *win,
|
|
wxDC& dc,
|
|
const wxRect& rect,
|
|
int flags = 0 )
|
|
{ m_rendererNative.DrawItemSelectionRect( win, dc, rect, flags ); }
|
|
|
|
virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win)
|
|
{ return m_rendererNative.GetSplitterParams(win); }
|
|
|
|
virtual wxRendererVersion GetVersion() const
|
|
{ return m_rendererNative.GetVersion(); }
|
|
|
|
protected:
|
|
wxRendererNative& m_rendererNative;
|
|
|
|
DECLARE_NO_COPY_CLASS(wxDelegateRendererNative)
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// inline functions implementation
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#ifndef wxHAS_NATIVE_RENDERER
|
|
|
|
// default native renderer is the generic one then
|
|
/* static */ inline
|
|
wxRendererNative& wxRendererNative::GetDefault()
|
|
{
|
|
return GetGeneric();
|
|
}
|
|
|
|
#endif // !wxHAS_NATIVE_RENDERER
|
|
|
|
#endif // _WX_RENDERER_H_
|