728 lines
23 KiB
C
728 lines
23 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: ctrlsub.h
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// Purpose: interface of wxControlWithItems
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// Author: wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/**
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@class wxItemContainerImmutable
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wxItemContainer defines an interface which is implemented by all controls
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which have string subitems each of which may be selected.
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It is decomposed in wxItemContainerImmutable which omits all methods
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adding/removing items and is used by wxRadioBox and wxItemContainer itself.
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Note that this is not a control, it's a mixin interface that classes
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have to derive from in addition to wxControl or wxWindow.
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Examples: wxListBox, wxCheckListBox, wxChoice and wxComboBox (which
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implements an extended interface deriving from this one)
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@library{wxcore}
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@category{ctrl}
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@see wxControlWithItems, wxItemContainer
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*/
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class wxItemContainerImmutable
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{
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public:
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/// Constructor
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wxItemContainerImmutable();
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//@{
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/**
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Returns the number of items in the control.
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@see IsEmpty()
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*/
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virtual unsigned int GetCount() const = 0;
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/**
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Returns @true if the control is empty or @false if it has some items.
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@see GetCount()
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*/
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bool IsEmpty() const;
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/**
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Returns the label of the item with the given index.
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@param n
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The zero-based index.
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@return The label of the item or an empty string if the position was
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invalid.
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*/
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virtual wxString GetString(unsigned int n) const = 0;
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/**
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Returns the array of the labels of all items in the control.
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*/
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wxArrayString GetStrings() const;
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/**
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Sets the label for the given item.
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@param n
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The zero-based item index.
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@param string
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The label to set.
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*/
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virtual void SetString(unsigned int n, const wxString& string) = 0;
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/**
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Finds an item whose label matches the given string.
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@param string
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String to find.
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@param caseSensitive
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Whether search is case sensitive (default is not).
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@return The zero-based position of the item, or wxNOT_FOUND if the
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string was not found.
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*/
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virtual int FindString(const wxString& string, bool caseSensitive = false) const;
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//@}
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/// @name Selection
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//@{
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/**
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Sets the selection to the given item @a n or removes the selection
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entirely if @a n == @c wxNOT_FOUND.
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Note that this does not cause any command events to be emitted nor does
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it deselect any other items in the controls which support multiple
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selections.
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@param n
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The string position to select, starting from zero.
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@see SetString(), SetStringSelection()
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*/
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virtual void SetSelection(int n) = 0;
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/**
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Returns the index of the selected item or @c wxNOT_FOUND if no item is
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selected.
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@return The position of the current selection.
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@remarks This method can be used with single selection list boxes only,
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you should use wxListBox::GetSelections() for the list
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boxes with wxLB_MULTIPLE style.
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@see SetSelection(), GetStringSelection()
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*/
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virtual int GetSelection() const = 0;
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/**
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Selects the item with the specified string in the control.
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This method doesn't cause any command events to be emitted.
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Notice that this method is case-insensitive, i.e. the string is
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compared with all the elements of the control case-insensitively and
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the first matching entry is selected, even if it doesn't have exactly
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the same case as this string and there is an exact match afterwards.
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@param string
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The string to select.
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@return @true if the specified string has been selected, @false if it
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wasn't found in the control.
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*/
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bool SetStringSelection(const wxString& string);
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/**
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Returns the label of the selected item or an empty string if no item is
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selected.
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@see GetSelection()
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*/
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virtual wxString GetStringSelection() const;
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/**
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This is the same as SetSelection() and exists only because it is
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slightly more natural for controls which support multiple selection.
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*/
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void Select(int n);
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//@}
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};
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/**
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@class wxItemContainer
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This class is an abstract base class for some wxWidgets controls which
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contain several items such as wxListBox, wxCheckListBox, wxComboBox or
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wxChoice. It defines an interface which is implemented by all controls
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which have string subitems each of which may be selected.
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wxItemContainer extends wxItemContainerImmutable interface with methods
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for adding/removing items.
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It defines the methods for accessing the controls items and although each
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of the derived classes implements them differently, they still all conform
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to the same interface.
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The items in a wxItemContainer have (non-empty) string labels and,
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optionally, client data associated with them. Client data may be of two
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different kinds: either simple untyped (@c void *) pointers which are
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simply stored by the control but not used in any way by it, or typed
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pointers (wxClientData*) which are owned by the control meaning that the
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typed client data (and only it) will be deleted when an item is deleted
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using Delete() or the entire control is cleared using Clear(), which also
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happens when it is destroyed.
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Finally note that in the same control all items must have client data of
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the same type (typed or untyped), if any. This type is determined by the
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first call to Append() (the version with client data pointer) or
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SetClientData().
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Note that this is not a control, it's a mixin interface that classes
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have to derive from in addition to wxControl or wxWindow. Convenience
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class wxControlWithItems is provided for this purpose.
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@library{wxcore}
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@category{ctrl}
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@see wxControlWithItems, wxItemContainerImmutable
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*/
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class wxItemContainer : public wxItemContainerImmutable
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{
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public:
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//@{
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/**
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Appends item into the control.
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@param item
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String to add.
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@return The return value is the index of the newly inserted item.
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Note that this may be different from the last one if the
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control is sorted (e.g. has @c wxLB_SORT or @c wxCB_SORT
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style).
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*/
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int Append(const wxString& item);
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/**
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Appends item into the control.
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@param item
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String to add.
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@param clientData
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Pointer to client data to associate with the new item.
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@return The return value is the index of the newly inserted item.
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Note that this may be different from the last one if the
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control is sorted (e.g. has @c wxLB_SORT or @c wxCB_SORT
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style).
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*/
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int Append(const wxString& item, void* clientData);
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/**
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Appends item into the control.
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@param item
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String to add.
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@param clientData
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Pointer to client data to associate with the new item.
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@return The return value is the index of the newly inserted item.
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Note that this may be different from the last one if the
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control is sorted (e.g. has @c wxLB_SORT or @c wxCB_SORT
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style).
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*/
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int Append(const wxString& item, wxClientData* clientData);
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/**
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Appends several items at once into the control.
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Notice that calling this method is usually much faster than appending
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them one by one if you need to add a lot of items.
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@param items
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Array of strings to insert.
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*/
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int Append(const wxArrayString& items);
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/**
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Appends several items at once into the control.
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Notice that calling this method is usually much faster than appending
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them one by one if you need to add a lot of items.
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@param items
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Array of strings to insert.
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@param clientData
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Array of client data pointers of the same size as @a items to
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associate with the new items.
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*/
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int Append(const wxArrayString& items, void **clientData);
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/**
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Appends several items at once into the control.
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Notice that calling this method is usually much faster than appending
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them one by one if you need to add a lot of items.
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@param items
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Array of strings to insert.
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@param clientData
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Array of client data pointers of the same size as @a items to
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associate with the new items.
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*/
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int Append(const wxArrayString& items, wxClientData **clientData);
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/**
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Appends several items at once into the control.
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Notice that calling this method is usually much faster than appending
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them one by one if you need to add a lot of items.
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@param n
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Number of items in the @a items array.
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@param items
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Array of strings of size @a n.
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*/
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int Append(unsigned int n, const wxString* items);
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/**
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Appends several items at once into the control.
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Notice that calling this method is usually much faster than appending
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them one by one if you need to add a lot of items.
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@param n
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Number of items in the @a items array.
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@param items
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Array of strings of size @a n.
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@param clientData
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Array of client data pointers of size @a n to associate with the
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new items.
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*/
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int Append(unsigned int n, const wxString* items,
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void** clientData);
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/**
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Appends several items at once into the control.
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Notice that calling this method is usually much faster than appending
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them one by one if you need to add a lot of items.
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@param n
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Number of items in the @a items array.
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@param items
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Array of strings of size @a n.
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@param clientData
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Array of client data pointers of size @a n to associate with the
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new items.
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*/
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int Append(unsigned int n, const wxString* items,
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wxClientData** clientData);
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//@}
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/**
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Removes all items from the control.
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Clear() also deletes the client data of the existing items if it is
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owned by the control.
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*/
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void Clear();
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/**
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Deletes an item from the control.
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The client data associated with the item will be also deleted if it is
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owned by the control. Note that it is an error (signalled by an assert
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failure in debug builds) to remove an item with the index negative or
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greater or equal than the number of items in the control.
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@param n
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The zero-based item index.
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@see Clear()
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*/
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void Delete(unsigned int n);
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/**
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Returns the client object associated with the given item and transfers
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its ownership to the caller.
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This method, unlike GetClientObject(), expects the caller to delete the
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returned pointer. It also replaces the internally stored pointer with
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@NULL, i.e. completely detaches the client object pointer from the
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control.
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It's an error to call this method unless HasClientObjectData() returns
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@true.
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@param n
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The zero-based item index.
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@return The associated client object pointer to be deleted by caller or
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@NULL.
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@since 2.9.2
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*/
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wxClientData *DetachClientObject(unsigned int n);
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/**
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Returns true, if either untyped data (@c void*) or object data (wxClientData*)
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is associated with the items of the control.
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*/
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bool HasClientData() const;
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/**
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Returns true, if object data is associated with the items of the
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control.
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Object data pointers have the type @c wxClientData* instead of @c void*
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and, importantly, are owned by the control, i.e. will be deleted by it,
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unlike their untyped counterparts.
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*/
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bool HasClientObjectData() const;
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/**
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Returns true, if untyped data (@c void*)
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is associated with the items of the control.
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*/
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bool HasClientUntypedData() const;
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//@{
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/**
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Returns a pointer to the client data associated with the given item (if
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any). It is an error to call this function for a control which doesn't
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have untyped client data at all although it is OK to call it even if
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the given item doesn't have any client data associated with it (but
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other items do).
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@param n
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The zero-based position of the item.
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@return A pointer to the client data, or @NULL if not present.
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*/
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void* GetClientData(unsigned int n) const;
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/**
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Returns a pointer to the client data associated with the given item (if
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any). It is an error to call this function for a control which doesn't
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have typed client data at all although it is OK to call it even if the
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given item doesn't have any client data associated with it (but other
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items do).
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Notice that the returned pointer is still owned by the control and will
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be deleted by it, use DetachClientObject() if you want to remove the
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pointer from the control.
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@param n
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The zero-based position of the item.
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@return A pointer to the client data, or @NULL if not present.
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*/
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wxClientData* GetClientObject(unsigned int n) const;
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/**
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Associates the given untyped client data pointer with the given item.
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Note that it is an error to call this function if any typed client data
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pointers had been associated with the control items before.
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@param n
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The zero-based item index.
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@param data
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The client data to associate with the item.
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*/
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void SetClientData(unsigned int n, void* data);
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/**
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Associates the given typed client data pointer with the given item: the
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@a data object will be deleted when the item is deleted (either
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explicitly by using Delete() or implicitly when the control itself is
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destroyed). Note that it is an error to call this function if any
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untyped client data pointers had been associated with the control items
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before.
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@param n
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The zero-based item index.
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@param data
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The client data to associate with the item.
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*/
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void SetClientObject(unsigned int n, wxClientData* data);
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//@}
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//@{
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/**
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Inserts item into the control.
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@param item
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String to add.
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@param pos
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Position to insert item before, zero based.
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@return The return value is the index of the newly inserted item.
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If the insertion failed for some reason, -1 is returned.
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*/
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int Insert(const wxString& item, unsigned int pos);
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/**
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Inserts item into the control.
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@param item
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String to add.
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@param pos
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Position to insert item before, zero based.
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@param clientData
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Pointer to client data to associate with the new item.
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@return The return value is the index of the newly inserted item.
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If the insertion failed for some reason, -1 is returned.
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*/
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int Insert(const wxString& item, unsigned int pos, void* clientData);
|
||
|
|
||
|
/**
|
||
|
Inserts item into the control.
|
||
|
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|
@param item
|
||
|
String to add.
|
||
|
@param pos
|
||
|
Position to insert item before, zero based.
|
||
|
@param clientData
|
||
|
Pointer to client data to associate with the new item.
|
||
|
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|
@return The return value is the index of the newly inserted item.
|
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|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(const wxString& item, unsigned int pos,
|
||
|
wxClientData* clientData);
|
||
|
|
||
|
/**
|
||
|
Inserts several items at once into the control.
|
||
|
|
||
|
Notice that calling this method is usually much faster than inserting
|
||
|
them one by one if you need to insert a lot of items.
|
||
|
|
||
|
@param items
|
||
|
Array of strings to insert.
|
||
|
@param pos
|
||
|
Position to insert the items before, zero based.
|
||
|
@return The return value is the index of the last inserted item.
|
||
|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(const wxArrayString& items, unsigned int pos);
|
||
|
|
||
|
/**
|
||
|
Inserts several items at once into the control.
|
||
|
|
||
|
Notice that calling this method is usually much faster than inserting
|
||
|
them one by one if you need to insert a lot of items.
|
||
|
|
||
|
@param items
|
||
|
Array of strings to insert.
|
||
|
@param pos
|
||
|
Position to insert the items before, zero based.
|
||
|
@param clientData
|
||
|
Array of client data pointers of the same size as @a items to
|
||
|
associate with the new items.
|
||
|
@return The return value is the index of the last inserted item.
|
||
|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(const wxArrayString& items, unsigned int pos,
|
||
|
void **clientData);
|
||
|
|
||
|
/**
|
||
|
Inserts several items at once into the control.
|
||
|
|
||
|
Notice that calling this method is usually much faster than inserting
|
||
|
them one by one if you need to insert a lot of items.
|
||
|
|
||
|
@param items
|
||
|
Array of strings to insert.
|
||
|
@param pos
|
||
|
Position to insert the items before, zero based.
|
||
|
@param clientData
|
||
|
Array of client data pointers of the same size as @a items to
|
||
|
associate with the new items.
|
||
|
@return The return value is the index of the last inserted item.
|
||
|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(const wxArrayString& items, unsigned int pos,
|
||
|
wxClientData **clientData);
|
||
|
|
||
|
/**
|
||
|
Inserts several items at once into the control.
|
||
|
|
||
|
Notice that calling this method is usually much faster than inserting
|
||
|
them one by one if you need to insert a lot of items.
|
||
|
|
||
|
@param n
|
||
|
Number of items in the @a items array.
|
||
|
@param items
|
||
|
Array of strings of size @a n.
|
||
|
@param pos
|
||
|
Position to insert the items before, zero based.
|
||
|
@return The return value is the index of the last inserted item.
|
||
|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(unsigned int n, const wxString* items,
|
||
|
unsigned int pos);
|
||
|
|
||
|
/**
|
||
|
Inserts several items at once into the control.
|
||
|
|
||
|
Notice that calling this method is usually much faster than inserting
|
||
|
them one by one if you need to insert a lot of items.
|
||
|
|
||
|
@param n
|
||
|
Number of items in the @a items array.
|
||
|
@param items
|
||
|
Array of strings of size @a n.
|
||
|
@param pos
|
||
|
Position to insert the new items before, zero based.
|
||
|
@param clientData
|
||
|
Array of client data pointers of size @a n to associate with the
|
||
|
new items.
|
||
|
@return The return value is the index of the last inserted item.
|
||
|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(unsigned int n, const wxString* items,
|
||
|
unsigned int pos,
|
||
|
void** clientData);
|
||
|
|
||
|
/**
|
||
|
Inserts several items at once into the control.
|
||
|
|
||
|
Notice that calling this method is usually much faster than inserting
|
||
|
them one by one if you need to insert a lot of items.
|
||
|
|
||
|
@param n
|
||
|
Number of items in the @a items array.
|
||
|
@param items
|
||
|
Array of strings of size @a n.
|
||
|
@param pos
|
||
|
Position to insert the new items before, zero based.
|
||
|
@param clientData
|
||
|
Array of client data pointers of size @a n to associate with the
|
||
|
new items.
|
||
|
@return The return value is the index of the last inserted item.
|
||
|
If the insertion failed for some reason, -1 is returned.
|
||
|
*/
|
||
|
int Insert(unsigned int n, const wxString* items,
|
||
|
unsigned int pos,
|
||
|
wxClientData** clientData);
|
||
|
//@}
|
||
|
|
||
|
//@{
|
||
|
/**
|
||
|
Replaces the current control contents with the given items.
|
||
|
|
||
|
Notice that calling this method is usually much faster than appending
|
||
|
them one by one if you need to add a lot of items.
|
||
|
|
||
|
@param items
|
||
|
Array of strings to insert.
|
||
|
*/
|
||
|
void Set(const wxArrayString& items);
|
||
|
|
||
|
/**
|
||
|
Replaces the current control contents with the given items.
|
||
|
|
||
|
Notice that calling this method is usually much faster than appending
|
||
|
them one by one if you need to add a lot of items.
|
||
|
|
||
|
@param items
|
||
|
Array of strings to insert.
|
||
|
@param clientData
|
||
|
Array of client data pointers of the same size as @a items to
|
||
|
associate with the new items.
|
||
|
*/
|
||
|
void Set(const wxArrayString& items, void **clientData);
|
||
|
|
||
|
/**
|
||
|
Replaces the current control contents with the given items.
|
||
|
|
||
|
Notice that calling this method is usually much faster than appending
|
||
|
them one by one if you need to add a lot of items.
|
||
|
|
||
|
@param items
|
||
|
Array of strings to insert.
|
||
|
@param clientData
|
||
|
Array of client data pointers of the same size as @a items to
|
||
|
associate with the new items.
|
||
|
*/
|
||
|
void Set(const wxArrayString& items, wxClientData **clientData);
|
||
|
|
||
|
/**
|
||
|
Replaces the current control contents with the given items.
|
||
|
|
||
|
Notice that calling this method is usually much faster than appending
|
||
|
them one by one if you need to add a lot of items.
|
||
|
|
||
|
@param n
|
||
|
Number of items in the @a items array.
|
||
|
@param items
|
||
|
Array of strings of size @a n.
|
||
|
*/
|
||
|
void Set(unsigned int n, const wxString* items);
|
||
|
|
||
|
/**
|
||
|
Replaces the current control contents with the given items.
|
||
|
|
||
|
Notice that calling this method is usually much faster than appending
|
||
|
them one by one if you need to add a lot of items.
|
||
|
|
||
|
@param n
|
||
|
Number of items in the @a items array.
|
||
|
@param items
|
||
|
Array of strings of size @a n.
|
||
|
@param clientData
|
||
|
Array of client data pointers of size @a n to associate with the
|
||
|
new items.
|
||
|
*/
|
||
|
void Set(unsigned int n, const wxString* items, void** clientData);
|
||
|
|
||
|
/**
|
||
|
Replaces the current control contents with the given items.
|
||
|
|
||
|
Notice that calling this method is usually much faster than appending
|
||
|
them one by one if you need to add a lot of items.
|
||
|
|
||
|
@param n
|
||
|
Number of items in the @a items array.
|
||
|
@param items
|
||
|
Array of strings of size @a n.
|
||
|
@param clientData
|
||
|
Array of client data pointers of size @a n to associate with the
|
||
|
new items.
|
||
|
*/
|
||
|
void Set(unsigned int n, const wxString* items, wxClientData** clientData);
|
||
|
//@}
|
||
|
};
|
||
|
|
||
|
|
||
|
/**
|
||
|
@class wxControlWithItems
|
||
|
|
||
|
This is convenience class that derives from both wxControl and
|
||
|
wxItemContainer. It is used as basis for some wxWidgets controls
|
||
|
(wxChoice and wxListBox).
|
||
|
|
||
|
@library{wxcore}
|
||
|
@category{ctrl}
|
||
|
|
||
|
@see wxItemContainer, wxItemContainerImmutable
|
||
|
*/
|
||
|
class wxControlWithItems : public wxControl, public wxItemContainer
|
||
|
{
|
||
|
};
|
||
|
|