ddadf560da
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62537 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
780 lines
28 KiB
C++
780 lines
28 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/combo.h
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// Purpose: wxComboCtrl declaration
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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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// RCS-ID: $Id$
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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_COMBOCONTROL_H_BASE_
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#define _WX_COMBOCONTROL_H_BASE_
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/*
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A few words about all the classes defined in this file are probably in
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order: why do we need extra wxComboCtrl and wxComboPopup classes?
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This is because a traditional combobox is a combination of a text control
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(with a button allowing to open the pop down list) with a listbox and
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wxComboBox class is exactly such control, however we want to also have other
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combinations - in fact, we want to allow anything at all to be used as pop
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down list, not just a wxListBox.
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So we define a base wxComboCtrl which can use any control as pop down
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list and wxComboBox deriving from it which implements the standard wxWidgets
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combobox API. wxComboCtrl needs to be told somehow which control to use
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and this is done by SetPopupControl(). However, we need something more than
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just a wxControl in this method as, for example, we need to call
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SetSelection("initial text value") and wxControl doesn't have such method.
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So we also need a wxComboPopup which is just a very simple interface which
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must be implemented by a control to be usable as a popup.
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We couldn't derive wxComboPopup from wxControl as this would make it
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impossible to have a class deriving from both wxListBx and from it, so
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instead it is just a mix-in.
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*/
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#include "wx/defs.h"
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#if wxUSE_COMBOCTRL
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#include "wx/control.h"
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#include "wx/renderer.h" // this is needed for wxCONTROL_XXX flags
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#include "wx/bitmap.h" // wxBitmap used by-value
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class WXDLLIMPEXP_FWD_CORE wxTextCtrl;
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class WXDLLIMPEXP_FWD_CORE wxComboPopup;
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//
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// New window styles for wxComboCtrlBase
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//
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enum
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{
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// Double-clicking a read-only combo triggers call to popup's OnComboPopup.
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// In wxOwnerDrawnComboBox, for instance, it cycles item.
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wxCC_SPECIAL_DCLICK = 0x0100,
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// Dropbutton acts like standard push button.
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wxCC_STD_BUTTON = 0x0200
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};
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// wxComboCtrl internal flags
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enum
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{
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// First those that can be passed to Customize.
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// It is Windows style for all flags to be clear.
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// Button is preferred outside the border (GTK style)
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wxCC_BUTTON_OUTSIDE_BORDER = 0x0001,
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// Show popup on mouse up instead of mouse down (which is the Windows style)
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wxCC_POPUP_ON_MOUSE_UP = 0x0002,
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// All text is not automatically selected on click
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wxCC_NO_TEXT_AUTO_SELECT = 0x0004,
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// Drop-button stays down as long as popup is displayed.
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wxCC_BUTTON_STAYS_DOWN = 0x0008,
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// Drop-button covers the entire control.
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wxCC_FULL_BUTTON = 0x0010,
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// Drop-button goes over the custom-border (used under WinVista).
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wxCC_BUTTON_COVERS_BORDER = 0x0020,
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// Internal use: signals creation is complete
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wxCC_IFLAG_CREATED = 0x0100,
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// Internal use: really put button outside
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wxCC_IFLAG_BUTTON_OUTSIDE = 0x0200,
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// Internal use: SetMargins has been succesfully called
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wxCC_IFLAG_LEFT_MARGIN_SET = 0x0400,
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// Internal use: Set wxTAB_TRAVERSAL to parent when popup is dismissed
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wxCC_IFLAG_PARENT_TAB_TRAVERSAL = 0x0800,
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// Internal use: Secondary popup window type should be used (if available).
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wxCC_IFLAG_USE_ALT_POPUP = 0x1000,
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// Internal use: Skip popup animation.
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wxCC_IFLAG_DISABLE_POPUP_ANIM = 0x2000,
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// Internal use: Drop-button is a bitmap button or has non-default size
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// (but can still be on either side of the control).
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wxCC_IFLAG_HAS_NONSTANDARD_BUTTON = 0x4000
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};
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// Flags used by PreprocessMouseEvent and HandleButtonMouseEvent
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enum
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{
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wxCC_MF_ON_BUTTON = 0x0001, // cursor is on dropbutton area
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wxCC_MF_ON_CLICK_AREA = 0x0002 // cursor is on dropbutton or other area
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// that can be clicked to show the popup.
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};
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// Namespace for wxComboCtrl feature flags
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struct wxComboCtrlFeatures
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{
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enum
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{
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MovableButton = 0x0001, // Button can be on either side of control
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BitmapButton = 0x0002, // Button may be replaced with bitmap
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ButtonSpacing = 0x0004, // Button can have spacing from the edge
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// of the control
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TextIndent = 0x0008, // SetMargins can be used to control
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// left margin.
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PaintControl = 0x0010, // Combo control itself can be custom painted
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PaintWritable = 0x0020, // A variable-width area in front of writable
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// combo control's textctrl can be custom
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// painted
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Borderless = 0x0040, // wxNO_BORDER window style works
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// There are no feature flags for...
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// PushButtonBitmapBackground - if its in wxRendererNative, then it should be
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// not an issue to have it automatically under the bitmap.
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All = MovableButton|BitmapButton|
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ButtonSpacing|TextIndent|
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PaintControl|PaintWritable|
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Borderless
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};
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};
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class WXDLLIMPEXP_CORE wxComboCtrlBase : public wxControl
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{
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friend class wxComboPopup;
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public:
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// ctors and such
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wxComboCtrlBase() : wxControl() { Init(); }
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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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long style,
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const wxValidator& validator,
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const wxString& name);
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virtual ~wxComboCtrlBase();
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// show/hide popup window
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virtual void ShowPopup();
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virtual void HidePopup(bool generateEvent=false);
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// Override for totally custom combo action
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virtual void OnButtonClick();
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// return true if the popup is currently shown
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bool IsPopupShown() const { return m_popupWinState == Visible; }
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// set interface class instance derived from wxComboPopup
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// NULL popup can be used to indicate default in a derived class
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void SetPopupControl( wxComboPopup* popup )
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{
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DoSetPopupControl(popup);
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}
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// get interface class instance derived from wxComboPopup
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wxComboPopup* GetPopupControl()
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{
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EnsurePopupControl();
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return m_popupInterface;
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}
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// get the popup window containing the popup control
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wxWindow *GetPopupWindow() const { return m_winPopup; }
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// Get the text control which is part of the combobox.
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wxTextCtrl *GetTextCtrl() const { return m_text; }
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// get the dropdown button which is part of the combobox
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// note: its not necessarily a wxButton or wxBitmapButton
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wxWindow *GetButton() const { return m_btn; }
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// forward these methods to all subcontrols
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virtual bool Enable(bool enable = true);
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virtual bool Show(bool show = true);
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virtual bool SetFont(const wxFont& font);
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#if wxUSE_VALIDATORS
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virtual void SetValidator(const wxValidator &validator);
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virtual wxValidator *GetValidator();
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#endif // wxUSE_VALIDATORS
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// wxTextCtrl methods - for readonly combo they should return
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// without errors.
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virtual wxString GetValue() const;
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virtual void SetValue(const wxString& value);
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virtual void Copy();
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virtual void Cut();
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virtual void Paste();
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virtual void SetInsertionPoint(long pos);
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virtual void SetInsertionPointEnd();
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virtual long GetInsertionPoint() const;
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virtual long GetLastPosition() const;
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virtual void Replace(long from, long to, const wxString& value);
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virtual void Remove(long from, long to);
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virtual void SetSelection(long from, long to);
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virtual void Undo();
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// This method sets the text without affecting list selection
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// (ie. wxComboPopup::SetStringValue doesn't get called).
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void SetText(const wxString& value);
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// This method sets value and also optionally sends EVT_TEXT
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// (needed by combo popups)
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void SetValueWithEvent(const wxString& value, bool withEvent = true);
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//
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// Popup customization methods
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//
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// Sets minimum width of the popup. If wider than combo control, it will extend to the left.
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// Remarks:
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// * Value -1 indicates the default.
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// * Custom popup may choose to ignore this (wxOwnerDrawnComboBox does not).
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void SetPopupMinWidth( int width )
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{
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m_widthMinPopup = width;
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}
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// Sets preferred maximum height of the popup.
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// Remarks:
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// * Value -1 indicates the default.
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// * Custom popup may choose to ignore this (wxOwnerDrawnComboBox does not).
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void SetPopupMaxHeight( int height )
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{
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m_heightPopup = height;
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}
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// Extends popup size horizontally, relative to the edges of the combo control.
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// Remarks:
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// * Popup minimum width may override extLeft (ie. it has higher precedence).
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// * Values 0 indicate default.
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// * Custom popup may not take this fully into account (wxOwnerDrawnComboBox takes).
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void SetPopupExtents( int extLeft, int extRight )
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{
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m_extLeft = extLeft;
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m_extRight = extRight;
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}
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// Set width, in pixels, of custom paint area in writable combo.
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// In read-only, used to indicate area that is not covered by the
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// focus rectangle (which may or may not be drawn, depending on the
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// popup type).
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void SetCustomPaintWidth( int width );
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int GetCustomPaintWidth() const { return m_widthCustomPaint; }
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// Set side of the control to which the popup will align itself.
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// Valid values are wxLEFT, wxRIGHT and 0. The default value 0 wmeans
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// that the side of the button will be used.
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void SetPopupAnchor( int anchorSide )
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{
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m_anchorSide = anchorSide;
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}
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// Set position of dropdown button.
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// width: button width. <= 0 for default.
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// height: button height. <= 0 for default.
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// side: wxLEFT or wxRIGHT, indicates on which side the button will be placed.
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// spacingX: empty space on sides of the button. Default is 0.
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// Remarks:
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// There is no spacingY - the button will be centered vertically.
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void SetButtonPosition( int width = -1,
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int height = -1,
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int side = wxRIGHT,
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int spacingX = 0 );
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// Returns current size of the dropdown button.
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wxSize GetButtonSize();
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//
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// Sets dropbutton to be drawn with custom bitmaps.
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//
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// bmpNormal: drawn when cursor is not on button
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// pushButtonBg: Draw push button background below the image.
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// NOTE! This is usually only properly supported on platforms with appropriate
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// method in wxRendererNative.
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// bmpPressed: drawn when button is depressed
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// bmpHover: drawn when cursor hovers on button. This is ignored on platforms
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// that do not generally display hover differently.
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// bmpDisabled: drawn when combobox is disabled.
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void SetButtonBitmaps( const wxBitmap& bmpNormal,
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bool pushButtonBg = false,
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const wxBitmap& bmpPressed = wxNullBitmap,
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const wxBitmap& bmpHover = wxNullBitmap,
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const wxBitmap& bmpDisabled = wxNullBitmap );
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#if WXWIN_COMPATIBILITY_2_8
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//
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// This will set the space in pixels between left edge of the control and the
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// text, regardless whether control is read-only (ie. no wxTextCtrl) or not.
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// Platform-specific default can be set with value-1.
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// Remarks
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// * This method may do nothing on some native implementations.
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wxDEPRECATED( void SetTextIndent( int indent ) );
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// Returns actual indentation in pixels.
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wxDEPRECATED( wxCoord GetTextIndent() const );
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#endif
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// Returns area covered by the text field.
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const wxRect& GetTextRect() const
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{
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return m_tcArea;
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}
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// Call with enable as true to use a type of popup window that guarantees ability
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// to focus the popup control, and normal function of common native controls.
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// This alternative popup window is usually a wxDialog, and as such it's parent
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// frame will appear as if the focus has been lost from it.
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void UseAltPopupWindow( bool enable = true )
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{
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wxASSERT_MSG( !m_winPopup,
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wxT("call this only before SetPopupControl") );
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if ( enable )
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m_iFlags |= wxCC_IFLAG_USE_ALT_POPUP;
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else
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m_iFlags &= ~wxCC_IFLAG_USE_ALT_POPUP;
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}
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// Call with false to disable popup animation, if any.
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void EnablePopupAnimation( bool enable = true )
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{
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if ( enable )
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m_iFlags &= ~wxCC_IFLAG_DISABLE_POPUP_ANIM;
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else
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m_iFlags |= wxCC_IFLAG_DISABLE_POPUP_ANIM;
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}
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//
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// Utilies needed by the popups or native implementations
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//
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// Returns true if given key combination should toggle the popup.
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// NB: This is a separate from other keyboard handling because:
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// 1) Replaceability.
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// 2) Centralized code (otherwise it'd be split up between
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// wxComboCtrl key handler and wxVListBoxComboPopup's
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// key handler).
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virtual bool IsKeyPopupToggle(const wxKeyEvent& event) const = 0;
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// Prepare background of combo control or an item in a dropdown list
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// in a way typical on platform. This includes painting the focus/disabled
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// background and setting the clipping region.
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// Unless you plan to paint your own focus indicator, you should always call this
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// in your wxComboPopup::PaintComboControl implementation.
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// In addition, it sets pen and text colour to what looks good and proper
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// against the background.
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// flags: wxRendererNative flags: wxCONTROL_ISSUBMENU: is drawing a list item instead of combo control
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// wxCONTROL_SELECTED: list item is selected
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// wxCONTROL_DISABLED: control/item is disabled
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virtual void PrepareBackground( wxDC& dc, const wxRect& rect, int flags ) const;
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// Returns true if focus indicator should be drawn in the control.
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bool ShouldDrawFocus() const
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{
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const wxWindow* curFocus = FindFocus();
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return ( IsPopupWindowState(Hidden) &&
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(curFocus == m_mainCtrlWnd || (m_btn && curFocus == m_btn)) &&
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(m_windowStyle & wxCB_READONLY) );
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}
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// These methods return references to appropriate dropbutton bitmaps
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const wxBitmap& GetBitmapNormal() const { return m_bmpNormal; }
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const wxBitmap& GetBitmapPressed() const { return m_bmpPressed; }
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const wxBitmap& GetBitmapHover() const { return m_bmpHover; }
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const wxBitmap& GetBitmapDisabled() const { return m_bmpDisabled; }
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// Margins functions mirrored from TextEntryBase
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// (wxComboCtrl does not inherit from wxTextEntry, but may embed a
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// wxTextCtrl, so we need these). Also note that these functions
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// have replaced SetTextIndent() in wxWidgets 2.9.1 and later.
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bool SetMargins(const wxPoint& pt)
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{ return DoSetMargins(pt); }
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bool SetMargins(wxCoord left, wxCoord top = -1)
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{ return DoSetMargins(wxPoint(left, top)); }
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wxPoint GetMargins() const
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{ return DoGetMargins(); }
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// Return internal flags
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wxUint32 GetInternalFlags() const { return m_iFlags; }
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// Return true if Create has finished
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bool IsCreated() const { return m_iFlags & wxCC_IFLAG_CREATED ? true : false; }
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// common code to be called on popup hide/dismiss
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void OnPopupDismiss(bool generateEvent);
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// PopupShown states
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enum
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{
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Hidden = 0,
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//Closing = 1,
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Animating = 2,
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Visible = 3
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};
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bool IsPopupWindowState( int state ) const { return (state == m_popupWinState) ? true : false; }
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wxByte GetPopupWindowState() const { return m_popupWinState; }
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// Set value returned by GetMainWindowOfCompositeControl
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void SetCtrlMainWnd( wxWindow* wnd ) { m_mainCtrlWnd = wnd; }
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// This is public so we can access it from wxComboCtrlTextCtrl
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virtual wxWindow *GetMainWindowOfCompositeControl()
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{ return m_mainCtrlWnd; }
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protected:
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//
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// Override these for customization purposes
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//
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// called from wxSizeEvent handler
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virtual void OnResize() = 0;
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// Return native text identation
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// (i.e. text margin, for pure text, not textctrl)
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virtual wxCoord GetNativeTextIndent() const;
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// Called in syscolourchanged handler and base create
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virtual void OnThemeChange();
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// Creates wxTextCtrl.
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// extraStyle: Extra style parameters
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void CreateTextCtrl( int extraStyle, const wxValidator& validator );
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// Installs standard input handler to combo (and optionally to the textctrl)
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void InstallInputHandlers();
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// Flags for DrawButton
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enum
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{
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Button_PaintBackground = 0x0001, // Paints control background below the button
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Button_BitmapOnly = 0x0002 // Only paints the bitmap
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};
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// Draws dropbutton. Using wxRenderer or bitmaps, as appropriate.
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// Flags are defined above.
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virtual void DrawButton( wxDC& dc, const wxRect& rect, int flags = Button_PaintBackground );
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// Call if cursor is on button area or mouse is captured for the button.
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//bool HandleButtonMouseEvent( wxMouseEvent& event, bool isInside );
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bool HandleButtonMouseEvent( wxMouseEvent& event, int flags );
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// returns true if event was consumed or filtered (event type is also set to 0 in this case)
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bool PreprocessMouseEvent( wxMouseEvent& event, int flags );
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//
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// This will handle left_down and left_dclick events outside button in a Windows-like manner.
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// If you need alternate behaviour, it is recommended you manipulate and filter events to it
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// instead of building your own handling routine (for reference, on wxEVT_LEFT_DOWN it will
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// toggle popup and on wxEVT_LEFT_DCLICK it will do the same or run the popup's dclick method,
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// if defined - you should pass events of other types of it for common processing).
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void HandleNormalMouseEvent( wxMouseEvent& event );
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// Creates popup window, calls interface->Create(), etc
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void CreatePopup();
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// Destroy popup window and all related constructs
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void DestroyPopup();
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// override the base class virtuals involved in geometry calculations
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virtual wxSize DoGetBestSize() const;
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// NULL popup can be used to indicate default in a derived class
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virtual void DoSetPopupControl(wxComboPopup* popup);
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// ensures there is atleast the default popup
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void EnsurePopupControl();
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// Recalculates button and textctrl areas. Called when size or button setup change.
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// btnWidth: default/calculated width of the dropbutton. 0 means unchanged,
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// just recalculate.
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void CalculateAreas( int btnWidth = 0 );
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|
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// Standard textctrl positioning routine. Just give it platform-dependant
|
|
// textctrl coordinate adjustment.
|
|
virtual void PositionTextCtrl( int textCtrlXAdjust, int textCtrlYAdjust );
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|
|
|
// event handlers
|
|
void OnSizeEvent( wxSizeEvent& event );
|
|
void OnFocusEvent(wxFocusEvent& event);
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|
void OnIdleEvent(wxIdleEvent& event);
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|
void OnTextCtrlEvent(wxCommandEvent& event);
|
|
void OnSysColourChanged(wxSysColourChangedEvent& event);
|
|
void OnKeyEvent(wxKeyEvent& event);
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|
|
|
// Set customization flags (directs how wxComboCtrlBase helpers behave)
|
|
void Customize( wxUint32 flags ) { m_iFlags |= flags; }
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|
|
|
// Dispatches size event and refreshes
|
|
void RecalcAndRefresh();
|
|
|
|
// Flags for DoShowPopup and AnimateShow
|
|
enum
|
|
{
|
|
ShowBelow = 0x0000, // Showing popup below the control
|
|
ShowAbove = 0x0001, // Showing popup above the control
|
|
CanDeferShow = 0x0002 // Can only return true from AnimateShow if this is set
|
|
};
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|
|
|
// Shows and positions the popup.
|
|
virtual void DoShowPopup( const wxRect& rect, int flags );
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|
|
|
// Implement in derived class to create a drop-down animation.
|
|
// Return true if finished immediately. Otherwise popup is only
|
|
// shown when the derived class call DoShowPopup.
|
|
// Flags are same as for DoShowPopup.
|
|
virtual bool AnimateShow( const wxRect& rect, int flags );
|
|
|
|
#if wxUSE_TOOLTIPS
|
|
virtual void DoSetToolTip( wxToolTip *tip );
|
|
#endif
|
|
|
|
// margins functions
|
|
virtual bool DoSetMargins(const wxPoint& pt);
|
|
virtual wxPoint DoGetMargins() const;
|
|
|
|
// This is used when m_text is hidden (readonly).
|
|
wxString m_valueString;
|
|
|
|
// the text control and button we show all the time
|
|
wxTextCtrl* m_text;
|
|
wxWindow* m_btn;
|
|
|
|
// wxPopupWindow or similar containing the window managed by the interface.
|
|
wxWindow* m_winPopup;
|
|
|
|
// the popup control/panel
|
|
wxWindow* m_popup;
|
|
|
|
// popup interface
|
|
wxComboPopup* m_popupInterface;
|
|
|
|
// this is input etc. handler for the text control
|
|
wxEvtHandler* m_textEvtHandler;
|
|
|
|
// this is for the top level window
|
|
wxEvtHandler* m_toplevEvtHandler;
|
|
|
|
// this is for the control in popup
|
|
wxEvtHandler* m_popupExtraHandler;
|
|
|
|
// this is for the popup window
|
|
wxEvtHandler* m_popupWinEvtHandler;
|
|
|
|
// main (ie. topmost) window of a composite control (default = this)
|
|
wxWindow* m_mainCtrlWnd;
|
|
|
|
// used to prevent immediate re-popupping incase closed popup
|
|
// by clicking on the combo control (needed because of inconsistent
|
|
// transient implementation across platforms).
|
|
wxLongLong m_timeCanAcceptClick;
|
|
|
|
// how much popup should expand to the left/right of the control
|
|
wxCoord m_extLeft;
|
|
wxCoord m_extRight;
|
|
|
|
// minimum popup width
|
|
wxCoord m_widthMinPopup;
|
|
|
|
// preferred popup height
|
|
wxCoord m_heightPopup;
|
|
|
|
// how much of writable combo is custom-paint by callback?
|
|
// also used to indicate area that is not covered by "blue"
|
|
// selection indicator.
|
|
wxCoord m_widthCustomPaint;
|
|
|
|
// left margin, in pixels
|
|
wxCoord m_marginLeft;
|
|
|
|
// side on which the popup is aligned
|
|
int m_anchorSide;
|
|
|
|
// Width of the "fake" border
|
|
wxCoord m_widthCustomBorder;
|
|
|
|
// The button and textctrl click/paint areas
|
|
wxRect m_tcArea;
|
|
wxRect m_btnArea;
|
|
|
|
// current button state (uses renderer flags)
|
|
int m_btnState;
|
|
|
|
// button position
|
|
int m_btnWid;
|
|
int m_btnHei;
|
|
int m_btnSide;
|
|
int m_btnSpacingX;
|
|
|
|
// last default button width
|
|
int m_btnWidDefault;
|
|
|
|
// custom dropbutton bitmaps
|
|
wxBitmap m_bmpNormal;
|
|
wxBitmap m_bmpPressed;
|
|
wxBitmap m_bmpHover;
|
|
wxBitmap m_bmpDisabled;
|
|
|
|
// area used by the button
|
|
wxSize m_btnSize;
|
|
|
|
// platform-dependant customization and other flags
|
|
wxUint32 m_iFlags;
|
|
|
|
// draw blank button background under bitmap?
|
|
bool m_blankButtonBg;
|
|
|
|
// is the popup window currenty shown?
|
|
wxByte m_popupWinState;
|
|
|
|
// should the focus be reset to the textctrl in idle time?
|
|
bool m_resetFocus;
|
|
|
|
private:
|
|
void Init();
|
|
|
|
wxByte m_ignoreEvtText; // Number of next EVT_TEXTs to ignore
|
|
|
|
// Is popup window wxPopupTransientWindow, wxPopupWindow or wxDialog?
|
|
wxByte m_popupWinType;
|
|
|
|
DECLARE_EVENT_TABLE()
|
|
|
|
DECLARE_ABSTRACT_CLASS(wxComboCtrlBase)
|
|
};
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// wxComboPopup is the interface which must be implemented by a control to be
|
|
// used as a popup by wxComboCtrl
|
|
// ----------------------------------------------------------------------------
|
|
|
|
|
|
// wxComboPopup internal flags
|
|
enum
|
|
{
|
|
wxCP_IFLAG_CREATED = 0x0001 // Set by wxComboCtrlBase after Create is called
|
|
};
|
|
|
|
class WXDLLIMPEXP_FWD_CORE wxComboCtrl;
|
|
|
|
|
|
class WXDLLIMPEXP_CORE wxComboPopup
|
|
{
|
|
friend class wxComboCtrlBase;
|
|
public:
|
|
wxComboPopup()
|
|
{
|
|
m_combo = NULL;
|
|
m_iFlags = 0;
|
|
}
|
|
|
|
// This is called immediately after construction finishes. m_combo member
|
|
// variable has been initialized before the call.
|
|
// NOTE: It is not in constructor so the derived class doesn't need to redefine
|
|
// a default constructor of its own.
|
|
virtual void Init() { }
|
|
|
|
virtual ~wxComboPopup();
|
|
|
|
// Create the popup child control.
|
|
// Return true for success.
|
|
virtual bool Create(wxWindow* parent) = 0;
|
|
|
|
// We must have an associated control which is subclassed by the combobox.
|
|
virtual wxWindow *GetControl() = 0;
|
|
|
|
// Called immediately after the popup is shown
|
|
virtual void OnPopup();
|
|
|
|
// Called when popup is dismissed
|
|
virtual void OnDismiss();
|
|
|
|
// Called just prior to displaying popup.
|
|
// Default implementation does nothing.
|
|
virtual void SetStringValue( const wxString& value );
|
|
|
|
// Gets displayed string representation of the value.
|
|
virtual wxString GetStringValue() const = 0;
|
|
|
|
// This is called to custom paint in the combo control itself (ie. not the popup).
|
|
// Default implementation draws value as string.
|
|
virtual void PaintComboControl( wxDC& dc, const wxRect& rect );
|
|
|
|
// Receives key events from the parent wxComboCtrl.
|
|
// Events not handled should be skipped, as usual.
|
|
virtual void OnComboKeyEvent( wxKeyEvent& event );
|
|
|
|
// Implement if you need to support special action when user
|
|
// double-clicks on the parent wxComboCtrl.
|
|
virtual void OnComboDoubleClick();
|
|
|
|
// Return final size of popup. Called on every popup, just prior to OnShow.
|
|
// minWidth = preferred minimum width for window
|
|
// prefHeight = preferred height. Only applies if > 0,
|
|
// maxHeight = max height for window, as limited by screen size
|
|
// and should only be rounded down, if necessary.
|
|
virtual wxSize GetAdjustedSize( int minWidth, int prefHeight, int maxHeight );
|
|
|
|
// Return true if you want delay call to Create until the popup is shown
|
|
// for the first time. It is more efficient, but note that it is often
|
|
// more convenient to have the control created immediately.
|
|
// Default returns false.
|
|
virtual bool LazyCreate();
|
|
|
|
//
|
|
// Utilies
|
|
//
|
|
|
|
// Hides the popup
|
|
void Dismiss();
|
|
|
|
// Returns true if Create has been called.
|
|
bool IsCreated() const
|
|
{
|
|
return (m_iFlags & wxCP_IFLAG_CREATED) ? true : false;
|
|
}
|
|
|
|
// Returns pointer to the associated parent wxComboCtrl.
|
|
wxComboCtrl* GetComboCtrl() const;
|
|
|
|
// Default PaintComboControl behaviour
|
|
static void DefaultPaintComboControl( wxComboCtrlBase* combo,
|
|
wxDC& dc,
|
|
const wxRect& rect );
|
|
|
|
protected:
|
|
wxComboCtrlBase* m_combo;
|
|
wxUint32 m_iFlags;
|
|
|
|
private:
|
|
// Called in wxComboCtrlBase::SetPopupControl
|
|
void InitBase(wxComboCtrlBase *combo)
|
|
{
|
|
m_combo = combo;
|
|
}
|
|
};
|
|
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// include the platform-dependent header defining the real class
|
|
// ----------------------------------------------------------------------------
|
|
|
|
#if defined(__WXUNIVERSAL__)
|
|
// No native universal (but it must still be first in the list)
|
|
#elif defined(__WXMSW__)
|
|
#include "wx/msw/combo.h"
|
|
#endif
|
|
|
|
// Any ports may need generic as an alternative
|
|
#include "wx/generic/combo.h"
|
|
|
|
#endif // wxUSE_COMBOCTRL
|
|
|
|
#endif
|
|
// _WX_COMBOCONTROL_H_BASE_
|