#include </home/zeitlin/src/wx/github/interface/wx/combo.h>

Inheritance diagram for wxComboCtrl:

Detailed Description

A combo control is a generic combobox that allows totally custom popup.

In addition it has other customization features. For instance, position and size of the dropdown button can be changed.

Setting Custom Popup for wxComboCtrl

wxComboCtrl needs to be told somehow which control to use and this is done by SetPopupControl(). However, we need something more than just a wxControl in this method as, for example, we need to call SetStringValue("initial text value") and wxControl doesn't have such method. So we also need a wxComboPopup which is an interface which must be implemented by a control to be usable as a popup.

We couldn't derive wxComboPopup from wxControl as this would make it impossible to have a class deriving from a wxWidgets control and from it, so instead it is just a mix-in.

Here's a minimal sample of wxListView popup:

    #include <wx/combo.h>
    #include <wx/listctrl.h>

    class wxListViewComboPopup : public wxListView, public wxComboPopup
    {
    public:
        // Initialize member variables
        virtual void Init()
        {
            m_value = -1;
        }

        // Create popup control
        virtual bool Create(wxWindow* parent)
        {
            return wxListView::Create(parent,1,wxPoint(0,0),wxDefaultSize);
        }

        // Return pointer to the created control
        virtual wxWindow *GetControl() { return this; }

        // Translate string into a list selection
        virtual void SetStringValue(const wxString& s)
        {
            int n = wxListView::FindItem(-1,s);
            if ( n >= 0 && n < wxListView::GetItemCount() )
                wxListView::Select(n);
        }

        // Get list selection as a string
        virtual wxString GetStringValue() const
        {
            if ( m_value >= 0 )
            return wxListView::GetItemText(m_value);
            return wxEmptyString;
        }

        // Do mouse hot-tracking (which is typical in list popups)
        void OnMouseMove(wxMouseEvent& event)
        {
            // TODO: Move selection to cursor
        }

        // On mouse left up, set the value and close the popup
        void OnMouseClick(wxMouseEvent& WXUNUSED(event))
        {
            m_value = wxListView::GetFirstSelected();

            // TODO: Send event as well

            Dismiss();
        }

    protected:

        int m_value; // current item index

    private:
        wxDECLARE_EVENT_TABLE();
    };

    wxBEGIN_EVENT_TABLE(wxListViewComboPopup, wxListView)
        EVT_MOTION(wxListViewComboPopup::OnMouseMove)
        EVT_LEFT_UP(wxListViewComboPopup::OnMouseClick)
    wxEND_EVENT_TABLE()

Here's how you would create and populate it in a dialog constructor:

    wxComboCtrl* comboCtrl = new wxComboCtrl(this, wxID_ANY, wxEmptyString);

    wxListViewComboPopup* popupCtrl = new wxListViewComboPopup();

    // It is important to call SetPopupControl() as soon as possible
    comboCtrl->SetPopupControl(popupCtrl);

    // Populate using wxListView methods
    popupCtrl->InsertItem(popupCtrl->GetItemCount(), "First Item");
    popupCtrl->InsertItem(popupCtrl->GetItemCount(), "Second Item");
    popupCtrl->InsertItem(popupCtrl->GetItemCount(), "Third Item");

Styles

This class supports the following styles:

wxCB_READONLY:
Text will not be editable.
wxCB_SORT:
Sorts the entries in the list alphabetically.
wxTE_PROCESS_ENTER:
The control will generate the event wxEVT_COMMAND_TEXT_ENTER (otherwise pressing Enter key is either processed internally by the control or used for navigation between dialog controls). Windows only.
wxCC_SPECIAL_DCLICK:
Double-clicking triggers a call to popup's OnComboDoubleClick. Actual behaviour is defined by a derived class. For instance, wxOwnerDrawnComboBox will cycle an item. This style only applies if wxCB_READONLY is used as well.
wxCC_STD_BUTTON:
Drop button will behave more like a standard push button.

Events emitted by this class

The following event handler macros redirect the events to member function handlers 'func' with prototypes like:

void handlerFuncName(wxCommandEvent& event)

Event macros for events emitted by this class:

EVT_TEXT(id, func):
Process a wxEVT_COMMAND_TEXT_UPDATED event, when the text changes.
EVT_TEXT_ENTER(id, func):
Process a wxEVT_COMMAND_TEXT_ENTER event, when RETURN is pressed in the combo control.
EVT_COMBOBOX_DROPDOWN(id, func):
Process a wxEVT_COMMAND_COMBOBOX_DROPDOWN event, which is generated when the popup window is shown (drops down).
EVT_COMBOBOX_CLOSEUP(id, func):
Process a wxEVT_COMMAND_COMBOBOX_CLOSEUP event, which is generated when the popup window of the combo control disappears (closes up). You should avoid adding or deleting items in this event.

Library: wxBase

Category: Controls

Appearance:


wxMSW appearance	wxGTK appearance	wxMac appearance

参照:: wxComboBox, wxChoice, wxOwnerDrawnComboBox, wxComboPopup, wxCommandEvent

Public Member Functions
	wxComboCtrl ()
	Default constructor.
	wxComboCtrl (wxWindow *parent, wxWindowID id=wxID_ANY, const wxString &value=wxEmptyString, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxValidator &validator=wxDefaultValidator, const wxString &name=wxComboBoxNameStr)
	Constructor, creating and showing a combo control.
virtual	~wxComboCtrl ()
	Destructor, destroying the combo control.
virtual void	Copy ()
	Copies the selected text to the clipboard.
bool	Create (wxWindow *parent, wxWindowID id=wxID_ANY, const wxString &value=wxEmptyString, const wxPoint &pos=wxDefaultPosition, const wxSize &size=wxDefaultSize, long style=0, const wxValidator &validator=wxDefaultValidator, const wxString &name=wxComboBoxNameStr)
	Creates the combo control for two-step construction.
virtual void	Cut ()
	Copies the selected text to the clipboard and removes the selection.
virtual void	Dismiss ()
	Dismisses the popup window.
void	EnablePopupAnimation (bool enable=true)
	Enables or disables popup animation, if any, depending on the value of the argument.
virtual bool	IsKeyPopupToggle (const wxKeyEvent &event) const
	Returns true if given key combination should toggle the popup.
virtual void	PrepareBackground (wxDC &dc, const wxRect &rect, int flags) const
	Prepare background of combo control or an item in a dropdown list in a way typical on platform.
bool	ShouldDrawFocus () const
	Returns true if focus indicator should be drawn in the control.
const wxBitmap &	GetBitmapDisabled () const
	Returns disabled button bitmap that has been set with SetButtonBitmaps().
const wxBitmap &	GetBitmapHover () const
	Returns button mouse hover bitmap that has been set with SetButtonBitmaps().
const wxBitmap &	GetBitmapNormal () const
	Returns default button bitmap that has been set with SetButtonBitmaps().
const wxBitmap &	GetBitmapPressed () const
	Returns depressed button bitmap that has been set with SetButtonBitmaps().
wxSize	GetButtonSize ()
	Returns current size of the dropdown button.
int	GetCustomPaintWidth () const
	Returns custom painted area in control.
virtual wxString	GetHint () const
	Returns the current hint string.
virtual long	GetInsertionPoint () const
	Returns the insertion point for the combo control's text field.
virtual long	GetLastPosition () const
	Returns the last position in the combo control text field.
wxPoint	GetMargins () const
	Returns the margins used by the control.
wxComboPopup *	GetPopupControl ()
	Returns current popup interface that has been set with SetPopupControl().
wxWindow *	GetPopupWindow () const
	Returns popup window containing the popup control.
wxTextCtrl *	GetTextCtrl () const
	Get the text control which is part of the combo control.
wxCoord	GetTextIndent () const
	Returns actual indentation in pixels.
const wxRect &	GetTextRect () const
	Returns area covered by the text field (includes everything except borders and the dropdown button).
virtual wxString	GetValue () const
	Returns text representation of the current value.
virtual void	HidePopup (bool generateEvent=false)
	Dismisses the popup window.
bool	IsPopupShown () const
	Returns true if the popup is currently shown.
bool	IsPopupWindowState (int state) const
	Returns true if the popup window is in the given state.
virtual void	OnButtonClick ()
	Implement in a derived class to define what happens on dropdown button click.
virtual void	Paste ()
	Pastes text from the clipboard to the text field.
virtual void	Popup ()
	Shows the popup portion of the combo control.
virtual void	Remove (long from, long to)
	Removes the text between the two positions in the combo control text field.
virtual void	Replace (long from, long to, const wxString &text)
	Replaces the text between two positions with the given text, in the combo control text field.
void	SetButtonBitmaps (const wxBitmap &bmpNormal, bool pushButtonBg=false, const wxBitmap &bmpPressed=wxNullBitmap, const wxBitmap &bmpHover=wxNullBitmap, const wxBitmap &bmpDisabled=wxNullBitmap)
	Sets custom dropdown button graphics.
void	SetButtonPosition (int width=-1, int height=-1, int side=wxRIGHT, int spacingX=0)
	Sets size and position of dropdown button.
void	SetCustomPaintWidth (int width)
	Set width, in pixels, of custom painted area in control without `wxCB_READONLY` style.
virtual bool	SetHint (const wxString &hint)
	Sets a hint shown in an empty unfocused combo control.
virtual void	SetInsertionPoint (long pos)
	Sets the insertion point in the text field.
virtual void	SetInsertionPointEnd ()
	Sets the insertion point at the end of the combo control text field.
void	SetPopupAnchor (int anchorSide)
	Set side of the control to which the popup will align itself.
void	SetPopupControl (wxComboPopup *popup)
	Set popup interface class derived from wxComboPopup.
void	SetPopupExtents (int extLeft, int extRight)
	Extends popup size horizontally, relative to the edges of the combo control.
void	SetPopupMaxHeight (int height)
	Sets preferred maximum height of the popup.
void	SetPopupMinWidth (int width)
	Sets minimum width of the popup.
virtual void	SetSelection (long from, long to)
	Selects the text between the two positions, in the combo control text field.
void	SetText (const wxString &value)
	Sets the text for the text field without affecting the popup.
void	SetTextCtrlStyle (int style)
	Set a custom window style for the embedded wxTextCtrl.
void	SetTextIndent (int indent)
	This will set the space in pixels between left edge of the control and the text, regardless whether control is read-only or not.
virtual void	SetValue (const wxString &value)
	Sets the text for the combo control text field.
void	SetValueByUser (const wxString &value)
	Changes value of the control as if user had done it by selecting an item from a combo box drop-down list.
virtual void	ShowPopup ()
	Show the popup.
virtual void	Undo ()
	Undoes the last edit in the text field.
void	UseAltPopupWindow (bool enable=true)
	Enable or disable usage of an alternative popup window, which guarantees ability to focus the popup control, and allows common native controls to function normally.

bool	SetMargins (const wxPoint &pt)
	Attempts to set the control margins.
bool	SetMargins (wxCoord left, wxCoord top=-1)
	Attempts to set the control margins.
Static Public Member Functions
static int	GetFeatures ()
	Returns features supported by wxComboCtrl.
Protected Member Functions
virtual bool	AnimateShow (const wxRect &rect, int flags)
	This member function is not normally called in application code.
virtual void	DoSetPopupControl (wxComboPopup *popup)
	This member function is not normally called in application code.
virtual void	DoShowPopup (const wxRect &rect, int flags)
	This member function is not normally called in application code.

List of all members.

Constructor & Destructor Documentation

wxComboCtrl::wxComboCtrl ( )

Default constructor.

wxComboCtrl::wxComboCtrl	(	wxWindow *	parent,
		wxWindowID	id = `wxID_ANY`,
		const wxString &	value = `wxEmptyString`,
		const wxPoint &	pos = `wxDefaultPosition`,
		const wxSize &	size = `wxDefaultSize`,
		long	style = `0`,
		const wxValidator &	validator = `wxDefaultValidator`,
		const wxString &	name = `wxComboBoxNameStr`
	)

Constructor, creating and showing a combo control.

Parameters:

parent	Parent window. Must not be NULL.
id	Window identifier. The value wxID_ANY indicates a default value.
value	Initial selection string. An empty string indicates no selection.
pos	Window position. If wxDefaultPosition is specified then a default position is chosen.
size	Window size. If wxDefaultSize is specified then the window is sized appropriately.
style	Window style. See wxComboCtrl.
validator	Window validator.
name	Window name.

参照:: Create(), wxValidator

virtual wxComboCtrl::~wxComboCtrl ( ) [virtual]

Destructor, destroying the combo control.

Member Function Documentation

virtual bool wxComboCtrl::AnimateShow	(	const wxRect &	rect,
		int	flags
	)		`[protected, virtual]`

This member function is not normally called in application code.

Instead, it can be implemented in a derived class to create a custom popup animation.

The parameters are the same as those for DoShowPopup().

Returns:: true if animation finishes before the function returns, false otherwise. In the latter case you need to manually call DoShowPopup() after the animation ends.

virtual void wxComboCtrl::Copy ( ) [virtual]

Copies the selected text to the clipboard.

Reimplemented from wxTextEntry.

bool wxComboCtrl::Create	(	wxWindow *	parent,
		wxWindowID	id = `wxID_ANY`,
		const wxString &	value = `wxEmptyString`,
		const wxPoint &	pos = `wxDefaultPosition`,
		const wxSize &	size = `wxDefaultSize`,
		long	style = `0`,
		const wxValidator &	validator = `wxDefaultValidator`,
		const wxString &	name = `wxComboBoxNameStr`
	)

Creates the combo control for two-step construction.

Derived classes should call or replace this function. See wxComboCtrl() for further details.

Reimplemented in wxOwnerDrawnComboBox.

virtual void wxComboCtrl::Cut ( ) [virtual]

Copies the selected text to the clipboard and removes the selection.

virtual void wxComboCtrl::Dismiss ( ) [virtual]

Dismisses the popup window.

Notice that calling this function will generate a wxEVT_COMMAND_COMBOBOX_CLOSEUP event.

Since:: 2.9.2

virtual void wxComboCtrl::DoSetPopupControl ( wxComboPopup * popup ) [protected, virtual]

This member function is not normally called in application code.

Instead, it can be implemented in a derived class to return default wxComboPopup, in case popup is NULL.

注:: If you have implemented OnButtonClick() to do something else than show the popup, then DoSetPopupControl() must always set popup to NULL.

virtual void wxComboCtrl::DoShowPopup	(	const wxRect &	rect,
		int	flags
	)		`[protected, virtual]`

This member function is not normally called in application code.

Instead, it must be called in a derived class to make sure popup is properly shown after a popup animation has finished (but only if AnimateShow() did not finish the animation within its function scope).

Parameters:

rect Position to show the popup window at, in screen coordinates.

flags

Combination of any of the following:

wxComboCtrl::ShowAbove	Popup is shown above the control instead of below.
wxComboCtrl::CanDeferShow	Showing the popup can be deferred to happen sometime after ShowPopup() has finished. In this case, AnimateShow() must return false.

void wxComboCtrl::EnablePopupAnimation ( bool enable = true )

Enables or disables popup animation, if any, depending on the value of the argument.

const wxBitmap& wxComboCtrl::GetBitmapDisabled ( ) const

Returns disabled button bitmap that has been set with SetButtonBitmaps().

Returns:: A reference to the disabled state bitmap.

const wxBitmap& wxComboCtrl::GetBitmapHover ( ) const

Returns button mouse hover bitmap that has been set with SetButtonBitmaps().

Returns:: A reference to the mouse hover state bitmap.

const wxBitmap& wxComboCtrl::GetBitmapNormal ( ) const

Returns default button bitmap that has been set with SetButtonBitmaps().

Returns:: A reference to the normal state bitmap.

const wxBitmap& wxComboCtrl::GetBitmapPressed ( ) const

Returns depressed button bitmap that has been set with SetButtonBitmaps().

Returns:: A reference to the depressed state bitmap.

wxSize wxComboCtrl::GetButtonSize ( )

Returns current size of the dropdown button.

int wxComboCtrl::GetCustomPaintWidth ( ) const

Returns custom painted area in control.

参照:: SetCustomPaintWidth().

static int wxComboCtrl::GetFeatures ( ) [static]

Returns features supported by wxComboCtrl.

If needed feature is missing, you need to instead use wxGenericComboCtrl, which however may lack a native look and feel (but otherwise sports identical API).

Returns:: Value returned is a combination of the flags defined in wxComboCtrlFeatures.

virtual wxString wxComboCtrl::GetHint ( ) const [virtual]

Returns the current hint string.

See SetHint() for more information about hints.

Since:: 2.9.1

Reimplemented from wxTextEntry.

virtual long wxComboCtrl::GetInsertionPoint ( ) const [virtual]

Returns the insertion point for the combo control's text field.

注:: Under Windows, this function always returns 0 if the combo control doesn't have the focus.

Reimplemented from wxTextEntry.

virtual long wxComboCtrl::GetLastPosition ( ) const [virtual]

Returns the last position in the combo control text field.

Reimplemented from wxTextEntry.

wxPoint wxComboCtrl::GetMargins ( ) const

Returns the margins used by the control.

The x field of the returned point is the horizontal margin and the y field is the vertical one.

注意:: If given margin cannot be accurately determined, its value will be set to -1.

参照:: SetMargins()

Since:: 2.9.1

Reimplemented from wxTextEntry.

wxComboPopup* wxComboCtrl::GetPopupControl ( )

Returns current popup interface that has been set with SetPopupControl().

wxWindow* wxComboCtrl::GetPopupWindow ( ) const

Returns popup window containing the popup control.

wxTextCtrl* wxComboCtrl::GetTextCtrl ( ) const

Get the text control which is part of the combo control.

wxCoord wxComboCtrl::GetTextIndent ( ) const

Returns actual indentation in pixels.

Deprecated:: Use GetMargins() instead.

const wxRect& wxComboCtrl::GetTextRect ( ) const

Returns area covered by the text field (includes everything except borders and the dropdown button).

virtual wxString wxComboCtrl::GetValue ( ) const [virtual]

Returns text representation of the current value.

For writable combo control it always returns the value in the text field.

Reimplemented from wxTextEntry.

virtual void wxComboCtrl::HidePopup ( bool generateEvent = false ) [virtual]

Dismisses the popup window.

Parameters:

generateEvent Set this to true in order to generate wxEVT_COMMAND_COMBOBOX_CLOSEUP event.

Deprecated:: Use Dismiss() instead.

virtual bool wxComboCtrl::IsKeyPopupToggle ( const wxKeyEvent & event ) const [virtual]

Returns true if given key combination should toggle the popup.

bool wxComboCtrl::IsPopupShown ( ) const

Returns true if the popup is currently shown.

bool wxComboCtrl::IsPopupWindowState ( int state ) const

Returns true if the popup window is in the given state.

Possible values are:

wxComboCtrl::Hidden	Popup window is hidden.
wxComboCtrl::Animating	Popup window is being shown, but the popup animation has not yet finished.
wxComboCtrl::Visible	Popup window is fully visible.

virtual void wxComboCtrl::OnButtonClick ( ) [virtual]

Implement in a derived class to define what happens on dropdown button click.

Default action is to show the popup.

注:: If you implement this to do something else than show the popup, you must then also implement DoSetPopupControl() to always return NULL.

virtual void wxComboCtrl::Paste ( ) [virtual]

Pastes text from the clipboard to the text field.

Reimplemented from wxTextEntry.

virtual void wxComboCtrl::Popup ( ) [virtual]

Shows the popup portion of the combo control.

Notice that calling this function will generate a wxEVT_COMMAND_COMBOBOX_DROPDOWN event.

Since:: 2.9.2

virtual void wxComboCtrl::PrepareBackground	(	wxDC &	dc,
		const wxRect &	rect,
		int	flags
	)		const `[virtual]`

Prepare background of combo control or an item in a dropdown list in a way typical on platform.

This includes painting the focus/disabled background and setting the clipping region.

Unless you plan to paint your own focus indicator, you should always call this in your wxComboPopup::PaintComboControl implementation. In addition, it sets pen and text colour to what looks good and proper against the background.

flags: wxRendererNative flags: wxCONTROL_ISSUBMENU: is drawing a list item instead of combo control wxCONTROL_SELECTED: list item is selected wxCONTROL_DISABLED: control/item is disabled

virtual void wxComboCtrl::Remove	(	long	from,
		long	to
	)		`[virtual]`

Removes the text between the two positions in the combo control text field.

Parameters:

from	The first position.
to	The last position.

Reimplemented from wxTextEntry.

virtual void wxComboCtrl::Replace	(	long	from,
		long	to,
		const wxString &	text
	)		`[virtual]`

Replaces the text between two positions with the given text, in the combo control text field.

Parameters:

from	The first position.
to	The second position.
text	The text to insert.

Reimplemented from wxTextEntry.

void wxComboCtrl::SetButtonBitmaps	(	const wxBitmap &	bmpNormal,
		bool	pushButtonBg = `false`,
		const wxBitmap &	bmpPressed = `wxNullBitmap`,
		const wxBitmap &	bmpHover = `wxNullBitmap`,
		const wxBitmap &	bmpDisabled = `wxNullBitmap`
	)

Sets custom dropdown button graphics.

Parameters:

bmpNormal	Default button image.
pushButtonBg	If true, blank push button background is painted below the image.
bmpPressed	Depressed button image.
bmpHover	Button image when mouse hovers above it. This should be ignored on platforms and themes that do not generally draw different kind of button on mouse hover.
bmpDisabled	Disabled button image.

void wxComboCtrl::SetButtonPosition	(	int	width = `-1`,
		int	height = `-1`,
		int	side = `wxRIGHT`,
		int	spacingX = `0`
	)

Sets size and position of dropdown button.

Parameters:

width	Button width. Value = 0 specifies default.
height	Button height. Value = 0 specifies default.
side	Indicates which side the button will be placed. Value can be wxLEFT or wxRIGHT.
spacingX	Horizontal spacing around the button. Default is 0.

void wxComboCtrl::SetCustomPaintWidth ( int width )

Set width, in pixels, of custom painted area in control without wxCB_READONLY style.

In read-only wxOwnerDrawnComboBox, this is used to indicate area that is not covered by the focus rectangle.

virtual bool wxComboCtrl::SetHint ( const wxString & hint ) [virtual]

Sets a hint shown in an empty unfocused combo control.

Notice that hints are known as cue banners under MSW or placeholder strings under OS X.

参照:: wxTextEntry::SetHint()

Since:: 2.9.1

Reimplemented from wxTextEntry.

virtual void wxComboCtrl::SetInsertionPoint ( long pos ) [virtual]

Sets the insertion point in the text field.

Parameters:

pos	The new insertion point.

Reimplemented from wxTextEntry.

virtual void wxComboCtrl::SetInsertionPointEnd ( ) [virtual]

Sets the insertion point at the end of the combo control text field.

Reimplemented from wxTextEntry.

bool wxComboCtrl::SetMargins ( const wxPoint & pt )

Attempts to set the control margins.

When margins are given as wxPoint, x indicates the left and y the top margin. Use -1 to indicate that an existing value should be used.

Returns:: true if setting of all requested margins was successful.

Since:: 2.9.1

Reimplemented from wxTextEntry.

bool wxComboCtrl::SetMargins	(	wxCoord	left,
		wxCoord	top = `-1`
	)

Attempts to set the control margins.

When margins are given as wxPoint, x indicates the left and y the top margin. Use -1 to indicate that an existing value should be used.

Returns:: true if setting of all requested margins was successful.

Since:: 2.9.1

Reimplemented from wxTextEntry.

void wxComboCtrl::SetPopupAnchor ( int anchorSide )

Set side of the control to which the popup will align itself.

Valid values are wxLEFT, wxRIGHT and 0. The default value 0 means that the most appropriate side is used (which, currently, is always wxLEFT).

void wxComboCtrl::SetPopupControl ( wxComboPopup * popup )

Set popup interface class derived from wxComboPopup.

This method should be called as soon as possible after the control has been created, unless OnButtonClick() has been overridden.

void wxComboCtrl::SetPopupExtents	(	int	extLeft,
		int	extRight
	)

Extends popup size horizontally, relative to the edges of the combo control.

Parameters:

extLeft	How many pixel to extend beyond the left edge of the control. Default is 0.
extRight	How many pixel to extend beyond the right edge of the control. Default is 0.

注意:: Popup minimum width may override arguments. It is up to the popup to fully take this into account.

void wxComboCtrl::SetPopupMaxHeight ( int height )

Sets preferred maximum height of the popup.

注意:: Value -1 indicates the default.

void wxComboCtrl::SetPopupMinWidth ( int width )

Sets minimum width of the popup.

If wider than combo control, it will extend to the left.

注意:: Value -1 indicates the default. Also, popup implementation may choose to ignore this.

virtual void wxComboCtrl::SetSelection	(	long	from,
		long	to
	)		`[virtual]`

Selects the text between the two positions, in the combo control text field.

Parameters:

from	The first position.
to	The second position.

Reimplemented from wxTextEntry.

void wxComboCtrl::SetText ( const wxString & value )

Sets the text for the text field without affecting the popup.

Thus, unlike SetValue(), it works equally well with combo control using wxCB_READONLY style.

void wxComboCtrl::SetTextCtrlStyle ( int style )

Set a custom window style for the embedded wxTextCtrl.

Usually you will need to use this during two-step creation, just before Create(). 以下に例を示します:

            wxComboCtrl* comboCtrl = new wxComboCtrl();

            // Let's make the text right-aligned
            comboCtrl->SetTextCtrlStyle(wxTE_RIGHT);

            comboCtrl->Create(parent, wxID_ANY, wxEmptyString);

void wxComboCtrl::SetTextIndent ( int indent )

This will set the space in pixels between left edge of the control and the text, regardless whether control is read-only or not.

Value -1 can be given to indicate platform default.

Deprecated:: Use SetMargins() instead.

virtual void wxComboCtrl::SetValue ( const wxString & value ) [virtual]

Sets the text for the combo control text field.

注:: For a combo control with wxCB_READONLY style the string must be accepted by the popup (for instance, exist in the dropdown list), otherwise the call to SetValue() is ignored.

Reimplemented from wxTextEntry.

void wxComboCtrl::SetValueByUser ( const wxString & value )

Changes value of the control as if user had done it by selecting an item from a combo box drop-down list.

bool wxComboCtrl::ShouldDrawFocus ( ) const

Returns true if focus indicator should be drawn in the control.

virtual void wxComboCtrl::ShowPopup ( ) [virtual]

Show the popup.

Deprecated:: Use Popup() instead.

virtual void wxComboCtrl::Undo ( ) [virtual]

Undoes the last edit in the text field.

Windows only.

Reimplemented from wxTextEntry.

void wxComboCtrl::UseAltPopupWindow ( bool enable = true )

Enable or disable usage of an alternative popup window, which guarantees ability to focus the popup control, and allows common native controls to function normally.

This alternative popup window is usually a wxDialog, and as such, when it is shown, its parent top-level window will appear as if the focus has been lost from it.

Detailed Description

Setting Custom Popup for wxComboCtrl

Styles

Events emitted by this class

Public Member Functions

Static Public Member Functions

Protected Member Functions

Constructor & Destructor Documentation

Member Function Documentation