404 lines
15 KiB
C++
404 lines
15 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/odcombo.h
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// Purpose: wxOwnerDrawnComboBox and wxVListBoxPopup
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// Author: Jaakko Salli
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// Modified by:
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// Created: Apr-30-2006
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// Copyright: (c) Jaakko Salli
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_ODCOMBO_H_
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#define _WX_ODCOMBO_H_
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#include "wx/defs.h"
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#if wxUSE_ODCOMBOBOX
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#include "wx/combo.h"
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#include "wx/ctrlsub.h"
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#include "wx/vlbox.h"
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#include "wx/timer.h"
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//
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// New window styles for wxOwnerDrawnComboBox
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//
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enum
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{
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// Double-clicking cycles item if wxCB_READONLY is also used.
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wxODCB_DCLICK_CYCLES = wxCC_SPECIAL_DCLICK,
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// If used, control itself is not custom paint using callback.
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// Even if this is not used, writable combo is never custom paint
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// until SetCustomPaintWidth is called
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wxODCB_STD_CONTROL_PAINT = 0x1000
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};
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//
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// Callback flags (see wxOwnerDrawnComboBox::OnDrawItem)
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//
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enum wxOwnerDrawnComboBoxPaintingFlags
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{
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// when set, we are painting the selected item in control,
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// not in the popup
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wxODCB_PAINTING_CONTROL = 0x0001,
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// when set, we are painting an item which should have
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// focus rectangle painted in the background. Text colour
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// and clipping region are then appropriately set in
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// the default OnDrawBackground implementation.
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wxODCB_PAINTING_SELECTED = 0x0002
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};
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// ----------------------------------------------------------------------------
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// wxVListBoxComboPopup is a wxVListBox customized to act as a popup control.
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//
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// Notes:
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// wxOwnerDrawnComboBox uses this as its popup. However, it always derives
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// from native wxComboCtrl. If you need to use this popup with
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// wxGenericComboControl, then remember that vast majority of item manipulation
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// functionality is implemented in the wxVListBoxComboPopup class itself.
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//
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_ADV wxVListBoxComboPopup : public wxVListBox,
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public wxComboPopup
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{
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friend class wxOwnerDrawnComboBox;
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public:
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// init and dtor
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wxVListBoxComboPopup() : wxVListBox(), wxComboPopup() { }
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virtual ~wxVListBoxComboPopup();
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// required virtuals
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virtual void Init() wxOVERRIDE;
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virtual bool Create(wxWindow* parent) wxOVERRIDE;
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virtual void SetFocus() wxOVERRIDE;
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virtual wxWindow *GetControl() wxOVERRIDE { return this; }
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virtual void SetStringValue( const wxString& value ) wxOVERRIDE;
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virtual wxString GetStringValue() const wxOVERRIDE;
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// more customization
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virtual void OnPopup() wxOVERRIDE;
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virtual wxSize GetAdjustedSize( int minWidth, int prefHeight, int maxHeight ) wxOVERRIDE;
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virtual void PaintComboControl( wxDC& dc, const wxRect& rect ) wxOVERRIDE;
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virtual void OnComboKeyEvent( wxKeyEvent& event ) wxOVERRIDE;
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virtual void OnComboCharEvent( wxKeyEvent& event ) wxOVERRIDE;
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virtual void OnComboDoubleClick() wxOVERRIDE;
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virtual bool LazyCreate() wxOVERRIDE;
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virtual bool FindItem(const wxString& item, wxString* trueItem) wxOVERRIDE;
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// Item management
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void SetSelection( int item );
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void Insert( const wxString& item, int pos );
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int Append(const wxString& item);
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void Clear();
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void Delete( unsigned int item );
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void SetItemClientData(unsigned int n, void* clientData, wxClientDataType clientDataItemsType);
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void *GetItemClientData(unsigned int n) const;
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void SetString( int item, const wxString& str );
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wxString GetString( int item ) const;
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unsigned int GetCount() const;
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int FindString(const wxString& s, bool bCase = false) const;
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int GetSelection() const;
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//void Populate( int n, const wxString choices[] );
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void Populate( const wxArrayString& choices );
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void ClearClientDatas();
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// helpers
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int GetItemAtPosition( const wxPoint& pos ) { return HitTest(pos); }
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wxCoord GetTotalHeight() const { return EstimateTotalHeight(); }
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wxCoord GetLineHeight(int line) const { return OnGetRowHeight(line); }
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protected:
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// Called by OnComboDoubleClick and OnCombo{Key,Char}Event
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bool HandleKey( int keycode, bool saturate, wxChar keychar = 0 );
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// sends combobox select event from the parent combo control
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void SendComboBoxEvent( int selection );
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// gets value, sends event and dismisses
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void DismissWithEvent();
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// OnMeasureItemWidth will be called on next GetAdjustedSize.
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void ItemWidthChanged(unsigned int item)
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{
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m_widths[item] = -1;
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m_widthsDirty = true;
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}
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// Callbacks for drawing and measuring items. Override in a derived class for
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// owner-drawnness. Font, background and text colour have been prepared according
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// to selection, focus and such.
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//
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// item: item index to be drawn, may be wxNOT_FOUND when painting combo control itself
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// and there is no valid selection
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// flags: wxODCB_PAINTING_CONTROL is set if painting to combo control instead of list
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//
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// NOTE: If wxVListBoxComboPopup is used with a wxComboCtrl class not derived from
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// wxOwnerDrawnComboBox, this method must be overridden.
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virtual void OnDrawItem( wxDC& dc, const wxRect& rect, int item, int flags) const;
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// This is same as in wxVListBox
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virtual wxCoord OnMeasureItem( size_t item ) const wxOVERRIDE;
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// Return item width, or -1 for calculating from text extent (default)
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virtual wxCoord OnMeasureItemWidth( size_t item ) const;
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// Draw item and combo control background. Flags are same as with OnDrawItem.
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// NB: Can't use name OnDrawBackground because of virtual function hiding warnings.
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virtual void OnDrawBg(wxDC& dc, const wxRect& rect, int item, int flags) const;
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// Additional wxVListBox implementation (no need to override in derived classes)
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virtual void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const wxOVERRIDE;
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void OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const wxOVERRIDE;
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// filter mouse move events happening outside the list box
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// move selection with cursor
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void OnMouseMove(wxMouseEvent& event);
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void OnKey(wxKeyEvent& event);
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void OnChar(wxKeyEvent& event);
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void OnLeftClick(wxMouseEvent& event);
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// Return the widest item width (recalculating it if necessary)
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int GetWidestItemWidth() { CalcWidths(); return m_widestWidth; }
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// Return the index of the widest item (recalculating it if necessary)
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int GetWidestItem() { CalcWidths(); return m_widestItem; }
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// Stop partial completion (when some other event occurs)
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void StopPartialCompletion();
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wxArrayString m_strings;
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wxVector<void*> m_clientDatas;
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wxFont m_useFont;
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//wxString m_stringValue; // displayed text (may be different from m_strings[m_value])
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int m_value; // selection
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int m_itemHover; // on which item the cursor is
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int m_itemHeight; // default item height (calculate from font size
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// and used in the absence of callback)
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wxClientDataType m_clientDataItemsType;
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private:
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// Cached item widths (in pixels).
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wxVector<int> m_widths;
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// Width of currently widest item.
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int m_widestWidth;
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// Index of currently widest item.
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int m_widestItem;
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// Measure some items in next GetAdjustedSize?
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bool m_widthsDirty;
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// Find widest item in next GetAdjustedSize?
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bool m_findWidest;
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// has the mouse been released on this control?
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bool m_clicked;
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// Recalculate widths if they are dirty
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void CalcWidths();
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// Partial completion string
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wxString m_partialCompletionString;
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wxString m_stringValue;
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#if wxUSE_TIMER
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// Partial completion timer
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wxTimer m_partialCompletionTimer;
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#endif // wxUSE_TIMER
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wxDECLARE_EVENT_TABLE();
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};
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// ----------------------------------------------------------------------------
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// wxOwnerDrawnComboBox: a generic wxComboBox that allows custom paint items
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// in addition to many other types of customization already allowed by
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// the wxComboCtrl.
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_ADV wxOwnerDrawnComboBox :
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public wxWindowWithItems<wxComboCtrl, wxItemContainer>
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{
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//friend class wxComboPopupWindow;
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friend class wxVListBoxComboPopup;
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public:
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// ctors and such
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wxOwnerDrawnComboBox() { Init(); }
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wxOwnerDrawnComboBox(wxWindow *parent,
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wxWindowID id,
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const wxString& value,
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const wxPoint& pos,
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const wxSize& size,
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int n,
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const wxString choices[],
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxComboBoxNameStr))
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{
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Init();
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(void)Create(parent, id, value, pos, size, n,
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choices, style, validator, name);
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}
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bool Create(wxWindow *parent,
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wxWindowID id,
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const wxString& value = wxEmptyString,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxComboBoxNameStr));
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wxOwnerDrawnComboBox(wxWindow *parent,
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wxWindowID id,
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const wxString& value = wxEmptyString,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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const wxArrayString& choices = wxArrayString(),
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxComboBoxNameStr));
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bool Create(wxWindow *parent,
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wxWindowID id,
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const wxString& value,
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const wxPoint& pos,
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const wxSize& size,
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int n,
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const wxString choices[],
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxComboBoxNameStr));
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bool Create(wxWindow *parent,
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wxWindowID id,
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const wxString& value,
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const wxPoint& pos,
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const wxSize& size,
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const wxArrayString& choices,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxASCII_STR(wxComboBoxNameStr));
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virtual ~wxOwnerDrawnComboBox();
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// Prevent app from using wxComboPopup
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void SetPopupControl(wxVListBoxComboPopup* popup)
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{
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DoSetPopupControl(popup);
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}
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// wxControlWithItems methods
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virtual unsigned int GetCount() const wxOVERRIDE;
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virtual wxString GetString(unsigned int n) const wxOVERRIDE;
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virtual void SetString(unsigned int n, const wxString& s) wxOVERRIDE;
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virtual int FindString(const wxString& s, bool bCase = false) const wxOVERRIDE;
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virtual void Select(int n);
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virtual int GetSelection() const wxOVERRIDE;
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// See wxComboBoxBase discussion of IsEmpty().
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bool IsListEmpty() const { return wxItemContainer::IsEmpty(); }
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bool IsTextEmpty() const { return wxTextEntry::IsEmpty(); }
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// Override these just to maintain consistency with virtual methods
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// between classes.
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virtual void Clear() wxOVERRIDE;
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virtual void GetSelection(long *from, long *to) const wxOVERRIDE;
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virtual void SetSelection(int n) wxOVERRIDE { Select(n); }
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// Prevent a method from being hidden
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virtual void SetSelection(long from, long to) wxOVERRIDE
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{
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wxComboCtrl::SetSelection(from,to);
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}
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// Return the widest item width (recalculating it if necessary)
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virtual int GetWidestItemWidth() { EnsurePopupControl(); return GetVListBoxComboPopup()->GetWidestItemWidth(); }
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// Return the index of the widest item (recalculating it if necessary)
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virtual int GetWidestItem() { EnsurePopupControl(); return GetVListBoxComboPopup()->GetWidestItem(); }
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virtual bool IsSorted() const wxOVERRIDE { return HasFlag(wxCB_SORT); }
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protected:
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virtual void DoClear() wxOVERRIDE;
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virtual void DoDeleteOneItem(unsigned int n) wxOVERRIDE;
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// Callback for drawing. Font, background and text colour have been
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// prepared according to selection, focus and such.
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// item: item index to be drawn, may be wxNOT_FOUND when painting combo control itself
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// and there is no valid selection
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// flags: wxODCB_PAINTING_CONTROL is set if painting to combo control instead of list
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virtual void OnDrawItem( wxDC& dc, const wxRect& rect, int item, int flags ) const;
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// Callback for item height, or -1 for default
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virtual wxCoord OnMeasureItem( size_t item ) const;
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// Callback for item width, or -1 for default/undetermined
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virtual wxCoord OnMeasureItemWidth( size_t item ) const;
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// override base implementation so we can return the size for the
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// largest item
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virtual wxSize DoGetBestSize() const wxOVERRIDE;
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// Callback for background drawing. Flags are same as with
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// OnDrawItem.
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virtual void OnDrawBackground( wxDC& dc, const wxRect& rect, int item, int flags ) const;
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// NULL popup can be used to indicate default interface
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virtual void DoSetPopupControl(wxComboPopup* popup) wxOVERRIDE;
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// clears all allocated client data
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void ClearClientDatas();
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wxVListBoxComboPopup* GetVListBoxComboPopup() const
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{
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return (wxVListBoxComboPopup*) m_popupInterface;
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}
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virtual int DoInsertItems(const wxArrayStringsAdapter& items,
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unsigned int pos,
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void **clientData, wxClientDataType type) wxOVERRIDE;
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virtual void DoSetItemClientData(unsigned int n, void* clientData) wxOVERRIDE;
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virtual void* DoGetItemClientData(unsigned int n) const wxOVERRIDE;
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// temporary storage for the initial choices
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//const wxString* m_baseChoices;
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//int m_baseChoicesCount;
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wxArrayString m_initChs;
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private:
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void Init();
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wxDECLARE_EVENT_TABLE();
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wxDECLARE_DYNAMIC_CLASS(wxOwnerDrawnComboBox);
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};
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#endif // wxUSE_ODCOMBOBOX
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#endif
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// _WX_ODCOMBO_H_
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