// Modified by:
// Created: 20.07.2003
// RCS-ID: $Id$
-// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
+// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
/*
- Renderers are used in wxWindows for two similar but different things:
+ 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
#ifndef _WX_RENDERER_H_
#define _WX_RENDERER_H_
-class WXDLLEXPORT wxDC;
-class WXDLLEXPORT wxWindow;
+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
wxCONTROL_DISABLED = 0x00000001, // control is disabled
wxCONTROL_FOCUSED = 0x00000002, // currently has keyboard focus
wxCONTROL_PRESSED = 0x00000004, // (button) is pressed
- wxCONTROL_ISDEFAULT = 0x00000008, // only applies to the buttons
- wxCONTROL_ISSUBMENU = wxCONTROL_ISDEFAULT, // only for menu items
- wxCONTROL_EXPANDED = wxCONTROL_ISDEFAULT, // only for the tree items
+ 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,
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:
- virtual ~wxRendererNative() { } // stop GCC warning
-
// drawing functions
// -----------------
- // draw the header control button (used by wxListCtrl)
- virtual void DrawHeaderButton(wxWindow *win,
+ // 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) = 0;
+ 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,
// drawn by DrawSash() blends into it well
virtual void DrawSplitterBorder(wxWindow *win,
wxDC& dc,
- const wxRect& rect) = 0;
+ const wxRect& rect,
+ int flags = 0) = 0;
// draw a (vertical) sash
virtual void DrawSplitterSash(wxWindow *win,
wxDC& dc,
const wxSize& size,
- wxCoord position) = 0;
+ 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;
+
+ // draw the focus rectangle around the label contained in the given rect
+ //
+ // only wxCONTROL_SELECTED makes sense in flags here
+ virtual void DrawFocusRect(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 wxPoint GetSplitterSashAndBorder(const wxWindow *win) = 0;
+ virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win) = 0;
// pseudo constructors
// 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();
};
// ----------------------------------------------------------------------------
: m_rendererNative(rendererNative) { }
- virtual void DrawHeaderButton(wxWindow *win,
+ virtual int DrawHeaderButton(wxWindow *win,
wxDC& dc,
const wxRect& rect,
- int flags = 0)
- { m_rendererNative.DrawHeaderButton(win, dc, rect, flags); }
+ 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,
virtual void DrawSplitterBorder(wxWindow *win,
wxDC& dc,
- const wxRect& rect)
- { m_rendererNative.DrawSplitterBorder(win, dc, rect); }
+ 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)
- { m_rendererNative.DrawSplitterSash(win, dc, size, position); }
-
-
- virtual wxPoint GetSplitterSashAndBorder(const wxWindow *win)
- { return m_rendererNative.GetSplitterSashAndBorder(win); }
+ 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 void DrawFocusRect(wxWindow* win, wxDC& dc, const wxRect& rect, int flags = 0)
+ { m_rendererNative.DrawFocusRect( 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)
};
-#endif // _WX_RENDERER_H_
+// ----------------------------------------------------------------------------
+// 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_
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