X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/62dc9cb4f159e2d4cac08308b96e63238935e6bb..f77c0fe312a1dedde4a86c9b967d095802c10384:/include/wx/renderer.h diff --git a/include/wx/renderer.h b/include/wx/renderer.h index adb2076bc5..14ffb00d94 100644 --- a/include/wx/renderer.h +++ b/include/wx/renderer.h @@ -5,12 +5,12 @@ // Modified by: // Created: 20.07.2003 // RCS-ID: $Id$ -// Copyright: (c) 2003 Vadim Zeitlin +// Copyright: (c) 2003 Vadim Zeitlin // 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 @@ -25,10 +25,21 @@ #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 @@ -40,13 +51,17 @@ enum 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, @@ -55,6 +70,84 @@ enum 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 // ---------------------------------------------------------------------------- @@ -62,16 +155,32 @@ enum 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, @@ -83,22 +192,67 @@ public: // 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, - wxOrientation orient) = 0; + 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 wxPoint GetSplitterSashAndBorder(const wxWindow *win) = 0; + virtual wxSplitterRenderParams GetSplitterParams(const wxWindow *win) = 0; // pseudo constructors @@ -109,6 +263,37 @@ public: // 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(); }; // ---------------------------------------------------------------------------- @@ -125,11 +310,24 @@ public: : 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, @@ -139,19 +337,54 @@ public: 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, - wxOrientation orient) - { m_rendererNative.DrawSplitterSash(win, dc, size, position, orient); } - - - virtual wxPoint GetSplitterSashAndBorder(const wxWindow *win) - { return m_rendererNative.GetSplitterSashAndBorder(win); } + 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; @@ -159,5 +392,19 @@ protected: 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_