X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2e7789a933dd68fe41cf73325cda6094bef4d27d..92c0fc34c104c8d7c12d6a3b78ea232690fc23f4:/interface/wx/combobox.h diff --git a/interface/wx/combobox.h b/interface/wx/combobox.h index ca08253bf4..d3e75c84ab 100644 --- a/interface/wx/combobox.h +++ b/interface/wx/combobox.h @@ -2,8 +2,7 @@ // Name: combobox.h // Purpose: interface of wxComboBox // Author: wxWidgets team -// RCS-ID: $Id$ -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// /** @@ -13,7 +12,7 @@ It can be displayed as static list with editable or read-only text field; or a drop-down list with text field; or a drop-down list without a text - field. + field depending on the platform and presence of wxCB_READONLY style. A combobox permits a single selection only. Combobox items are numbered from zero. @@ -22,43 +21,58 @@ wxOwnerDrawnComboBox, wxComboPopup and the ready-to-use wxBitmapComboBox. Please refer to wxTextEntry documentation for the description of methods - operating with the text entry part of the combobox. + operating with the text entry part of the combobox and to wxItemContainer + for the methods operating with the list of strings. Notice that at least + under MSW wxComboBox doesn't behave correctly if it contains strings + differing in case only so portable programs should avoid adding such + strings to this control. @beginStyleTable @style{wxCB_SIMPLE} Creates a combobox with a permanently displayed list. Windows only. @style{wxCB_DROPDOWN} - Creates a combobox with a drop-down list. + Creates a combobox with a drop-down list. MSW and Motif only. @style{wxCB_READONLY} - Same as wxCB_DROPDOWN but only the strings specified as the combobox - choices can be selected, it is impossible to select (even from a - program) a string which is not in the choices list. + A combobox with this style behaves like a wxChoice (and may look in + the same way as well, although this is platform-dependent), i.e. it + allows the user to choose from the list of options but doesn't allow + to enter a value not present in the list. @style{wxCB_SORT} Sorts the entries in the list alphabetically. @style{wxTE_PROCESS_ENTER} - The control will generate the event wxEVT_COMMAND_TEXT_ENTER + The control will generate the event @c wxEVT_TEXT_ENTER (otherwise pressing Enter key is either processed internally by the - control or used for navigation between dialog controls). Windows - only. + control or used for navigation between dialog controls). @endStyleTable @beginEventEmissionTable{wxCommandEvent} @event{EVT_COMBOBOX(id, func)} - Process a wxEVT_COMMAND_COMBOBOX_SELECTED event, when an item on + Process a @c wxEVT_COMBOBOX event, when an item on the list is selected. Note that calling GetValue() returns the new value of selection. @event{EVT_TEXT(id, func)} - Process a wxEVT_COMMAND_TEXT_UPDATED event, when the combobox text + Process a @c wxEVT_TEXT event, when the combobox text changes. @event{EVT_TEXT_ENTER(id, func)} - Process a wxEVT_COMMAND_TEXT_ENTER event, when RETURN is pressed in + Process a @c wxEVT_TEXT_ENTER event, when RETURN is pressed in the combobox (notice that the combobox must have been created with wxTE_PROCESS_ENTER style to receive this event). + @event{EVT_COMBOBOX_DROPDOWN(id, func)} + Process a @c wxEVT_COMBOBOX_DROPDOWN event, which is generated + when the list box part of the combo box is shown (drops down). + Notice that this event is currently only supported by wxMSW and + wxGTK with GTK+ 2.10 or later. + @event{EVT_COMBOBOX_CLOSEUP(id, func)} + Process a @c wxEVT_COMBOBOX_CLOSEUP event, which is generated + when the list box of the combo box disappears (closes up). This + event is only generated for the same platforms as + @c wxEVT_COMBOBOX_DROPDOWN above. Also note that only wxMSW + supports adding or deleting items in this event. @endEventTable @library{wxcore} @category{ctrl} - @appearance{combobox.png} + @appearance{combobox} @see wxListBox, wxTextCtrl, wxChoice, wxCommandEvent */ @@ -72,7 +86,6 @@ public: */ wxComboBox(); - //@{ /** Constructor, creating and showing a combobox. @@ -82,11 +95,14 @@ public: Window identifier. The value wxID_ANY indicates a default value. @param value Initial selection string. An empty string indicates no selection. + Notice that for the controls with @c wxCB_READONLY style this + string must be one of the valid choices if it is not empty. @param pos Window position. + If ::wxDefaultPosition is specified then a default position is chosen. @param size - Window size. If wxDefaultSize is specified then the window is sized - appropriately. + Window size. + If ::wxDefaultSize is specified then the window is sized appropriately. @param n Number of strings with which to initialise the control. @param choices @@ -98,10 +114,9 @@ public: @param name Window name. - @beginWxPythonOnly - The wxComboBox constructor in wxPython reduces the @a n and @a choices - arguments are to a single argument, which is a list of strings. - @endWxPythonOnly + @beginWxPerlOnly + Not supported by wxPerl. + @endWxPerlOnly @see Create(), wxValidator */ @@ -137,10 +152,9 @@ public: @param name Window name. - @beginWxPythonOnly - The wxComboBox constructor in wxPython reduces the @a n and @a choices - arguments are to a single argument, which is a list of strings. - @endWxPythonOnly + @beginWxPerlOnly + Use an array reference for the @a choices parameter. + @endWxPerlOnly @see Create(), wxValidator */ @@ -152,7 +166,6 @@ public: long style = 0, const wxValidator& validator = wxDefaultValidator, const wxString& name = wxComboBoxNameStr); - //@} /** Destructor, destroying the combobox. @@ -200,25 +213,100 @@ public: virtual long GetInsertionPoint() const; /** - Same as wxTextEntry::SetSelection(). + IsEmpty() is not available in this class. + + This method is documented here only to notice that it can't be used + with this class because of the ambiguity between the methods with the + same name inherited from wxItemContainer and wxTextEntry base classes. + + Because of this, any attempt to call it results in a compilation error + and you should use either IsListEmpty() or IsTextEmpty() depending on + what exactly do you want to test. + */ + bool IsEmpty() const; + + /** + Returns true if the list of combobox choices is empty. - @beginWxPythonOnly - This method is called SetMark() in wxPython, "SetSelection" is kept for - wxControlWithItems::SetSelection(). - @endWxPythonOnly + Use this method instead of (not available in this class) IsEmpty() to + test if the list of items is empty. + + @since 2.9.3 + */ + bool IsListEmpty() const; + + /** + Returns true if the text of the combobox is empty. + + Use this method instead of (not available in this class) IsEmpty() to + test if the text currently entered into the combobox is empty. + + @since 2.9.3 + */ + bool IsTextEmpty() const; + + /** + Same as wxTextEntry::SetSelection(). */ virtual void SetSelection(long from, long to); /** Sets the text for the combobox text field. + Notice that this method will generate a @c wxEVT_TEXT + event, use wxTextEntry::ChangeValue() if this is undesirable. + @note For a combobox with @c wxCB_READONLY style the string must be in the combobox choices list, otherwise the call to SetValue() is - ignored. + ignored. This is case insensitive. @param text The text to set. */ virtual void SetValue(const wxString& text); + + /** + Shows the list box portion of the combo box. + + Currently this method is implemented in wxMSW, wxGTK and wxOSX/Cocoa. + + Notice that calling this function will generate a + @c wxEVT_COMBOBOX_DROPDOWN event except under wxOSX where + generation of this event is not supported at all. + + @since 2.9.1 + */ + virtual void Popup(); + + /** + Hides the list box portion of the combo box. + + Currently this method is implemented in wxMSW, wxGTK and wxOSX/Cocoa. + + Notice that calling this function will generate a + @c wxEVT_COMBOBOX_CLOSEUP event except under wxOSX where + generation of this event is not supported at all. + + @since 2.9.1 + */ + virtual void Dismiss(); + + virtual int GetSelection() const; + virtual void GetSelection(long *from, long *to) const; + virtual void SetSelection(int n); + virtual int FindString(const wxString& s, bool bCase = false) const; + virtual wxString GetString(unsigned int n) const; + virtual wxString GetStringSelection() const; + + /** + Changes the text of the specified combobox item. + + Notice that if the item is the currently selected one, i.e. if its text + is displayed in the text part of the combobox, then the text is also + replaced with the new @a text. + */ + virtual void SetString(unsigned int n, const wxString& text); + + virtual unsigned int GetCount() const; };