Since you will usually also allow the wxDataViewCtrl to change your data
through its graphical interface, you will also have to override
wxDataViewModel::SetValue which the wxDataViewCtrl will call when a change
- to some data has been commited.
+ to some data has been committed.
wxDataViewModel (as indeed the entire wxDataViewCtrl code) is using wxVariant
to store data and its type in a generic way. wxVariant can be extended to contain
wxDataViewIndexListModel, wxDataViewVirtualListModel, wxDataViewTreeStore,
wxDataViewListStore.
- Note that wxDataViewModel is reference counted, derives from wxObjectRefData
+ Note that wxDataViewModel is reference counted, derives from wxRefCounter
and cannot be deleted directly as it can be shared by several wxDataViewCtrls.
This implies that you need to decrease the reference count after
associating the model with a control like this:
wxDataViewModel *musicModel = new MyMusicModel;
m_musicCtrl->AssociateModel( musicModel );
musicModel->DecRef(); // avoid memory leak !!
-
+
// add columns now
@endcode
@library{wxadv}
@category{dvc}
*/
-class wxDataViewModel : public wxObjectRefData
+class wxDataViewModel : public wxRefCounter
{
public:
/**
*/
void AddNotifier(wxDataViewModelNotifier* notifier);
+ /**
+ Change the value of the given item and update the control to reflect
+ it.
+
+ This function simply calls SetValue() and, if it succeeded,
+ ValueChanged().
+
+ @since 2.9.1
+
+ @param variant
+ The new value.
+ @param item
+ The item (row) to update.
+ @param col
+ The column to update.
+ @return
+ @true if both SetValue() and ValueChanged() returned @true.
+ */
+ bool ChangeValue(const wxVariant& variant,
+ const wxDataViewItem& item,
+ unsigned int col);
+
/**
Called to inform the model that all data has been cleared.
The control will reread the data from the model again.
virtual int Compare(const wxDataViewItem& item1,
const wxDataViewItem& item2,
unsigned int column,
- bool ascending);
+ bool ascending) const;
/**
Override this to indicate that the item has special font attributes.
This only affects the wxDataViewTextRendererText renderer.
+ The base class version always simply returns @false.
+
@see wxDataViewItemAttr.
+
+ @param item
+ The item for which the attribute is requested.
+ @param col
+ The column of the item for which the attribute is requested.
+ @param attr
+ The attribute to be filled in if the function returns @true.
+ @return
+ @true if this item has an attribute or @false otherwise.
*/
virtual bool GetAttr(const wxDataViewItem& item, unsigned int col,
- wxDataViewItemAttr& attr);
+ wxDataViewItemAttr& attr) const;
/**
Override this so the control can query the child items of an item.
*/
virtual bool HasDefaultCompare() const;
+ /**
+ Return true if there is a value in the given column of this item.
+
+ All normal items have values in all columns but the container items
+ only show their label in the first column (@a col == 0) by default (but
+ see HasContainerColumns()). So this function always returns true for
+ the first column while for the other ones it returns true only if the
+ item is not a container or HasContainerColumns() was overridden to
+ return true for it.
+
+ @since 2.9.1
+ */
+ bool HasValue(const wxDataViewItem& item, unsigned col) const;
+
/**
Override this to indicate of @a item is a container, i.e. if
it can have child items.
/**
This gets called in order to set a value in the data model.
+
The most common scenario is that the wxDataViewCtrl calls this method
after the user changed some data in the view.
- Afterwards ValueChanged() has to be called!
+ This is the function you need to override in your derived class but if
+ you want to call it, ChangeValue() is usually more convenient as
+ otherwise you need to manually call ValueChanged() to update the
+ control itself.
*/
- virtual bool SetValue(const wxVariant& variant, const wxDataViewItem& item,
+ virtual bool SetValue(const wxVariant& variant,
+ const wxDataViewItem& item,
unsigned int col) = 0;
/**
Override this to indicate that the row has special font attributes.
This only affects the wxDataViewTextRendererText() renderer.
+ The base class version always simply returns @false.
+
@see wxDataViewItemAttr.
+
+ @param row
+ The row for which the attribute is requested.
+ @param col
+ The column for which the attribute is requested.
+ @param attr
+ The attribute to be filled in if the function returns @true.
+ @return
+ @true if this item has an attribute or @false otherwise.
*/
virtual bool GetAttrByRow(unsigned int row, unsigned int col,
- wxDataViewItemAttr& attr);
+ wxDataViewItemAttr& attr) const;
+
+ /**
+ Returns the number of items (i.e. rows) in the list.
+ */
+ unsigned int GetCount() const;
/**
Returns the wxDataViewItem at the given @e row.
Constructor.
*/
wxDataViewVirtualListModel(unsigned int initial_size = 0);
+
+ /**
+ Returns the number of virtual items (i.e. rows) in the list.
+ */
+ unsigned int GetCount() const;
};
@class wxDataViewItem
wxDataViewItem is a small opaque class that represents an item in a wxDataViewCtrl
- in a persistent way, i.e. indepent of the position of the item in the control
+ in a persistent way, i.e. independent of the position of the item in the control
or changes to its contents.
It must hold a unique ID of type @e void* in its only field and can be converted
@style{wxDV_VARIABLE_LINE_HEIGHT}
Allow variable line heights.
This can be inefficient when displaying large number of items.
+ @style{wxDV_NO_HEADER}
+ Do not show column headers (which are shown by default).
@endStyleTable
@beginEventEmissionTable{wxDataViewEvent}
One instance of a renderer class is owned by a wxDataViewColumn.
There is a number of ready-to-use renderers provided:
- wxDataViewTextRenderer,
- - wxDataViewTextRendererAttr,
- wxDataViewIconTextRenderer,
- wxDataViewToggleRenderer,
- wxDataViewProgressRenderer,
- wxDataViewBitmapRenderer,
- wxDataViewDateRenderer,
- wxDataViewSpinRenderer.
+ - wxDataViewChoiceRenderer.
Additionally, the user can write own renderers by deriving from
wxDataViewCustomRenderer.
wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
int align = wxDVR_DEFAULT_ALIGNMENT );
+ /**
+ Enable or disable replacing parts of the item text with ellipsis to
+ make it fit the column width.
+
+ This method only makes sense for the renderers working with text, such
+ as wxDataViewTextRenderer or wxDataViewIconTextRenderer.
+
+ By default wxELLIPSIZE_MIDDLE is used.
+
+ @param mode
+ Ellipsization mode, use wxELLIPSIZE_NONE to disable.
+
+ @since 2.9.1
+ */
+ void EnableEllipsize(wxEllipsizeMode mode = wxELLIPSIZE_MIDDLE);
+
+ /**
+ Disable replacing parts of the item text with ellipsis.
+
+ If ellipsizing is disabled, the string will be truncated if it doesn't
+ fit.
+
+ This is the same as @code EnableEllipsize(wxELLIPSIZE_NONE) @endcode.
+
+ @since 2.9.1
+ */
+ void DisableEllipsize();
+
/**
Returns the alignment. See SetAlignment()
*/
virtual int GetAlignment() const;
+ /**
+ Returns the ellipsize mode used by the renderer.
+
+ If the return value is wxELLIPSIZE_NONE, the text is simply truncated
+ if it doesn't fit.
+
+ @see EnableEllipsize()
+ */
+ wxEllipsizeMode GetEllipsizeMode() const;
+
/**
Returns the cell mode.
*/
a small icon next to it as it is typically done in a file manager.
This classes uses the wxDataViewIconText helper class to store its data.
- wxDataViewIonText can be converted to and from a wxVariant using the left shift
- operator.
+ wxDataViewIconText can be converted to and from a wxVariant using the left
+ shift operator.
@library{wxadv}
@category{dvc}
};
-
/**
- @class wxDataViewDateRenderer
+ @class wxDataViewChoiceRenderer
- This class is used by wxDataViewCtrl to render calendar controls.
+ This class is used by wxDataViewCtrl to render choice controls.
+ It stores a string so that SetValue() and GetValue() operate
+ on a variant holding a string.
@library{wxadv}
@category{dvc}
*/
-class wxDataViewDateRenderer : public wxDataViewRenderer
+
+class wxDataViewChoiceRenderer: public wxDataViewRenderer
{
public:
/**
The ctor.
*/
- wxDataViewDateRenderer(const wxString& varianttype = "datetime",
- wxDataViewCellMode mode = wxDATAVIEW_CELL_ACTIVATABLE,
- int align = wxDVR_DEFAULT_ALIGNMENT);
-};
+ wxDataViewChoiceRenderer( const wxArrayString &choices,
+ wxDataViewCellMode mode = wxDATAVIEW_CELL_EDITABLE,
+ int alignment = wxDVR_DEFAULT_ALIGNMENT );
+ /**
+ Returns the choice referred to by index.
+ */
+ wxString GetChoice(size_t index) const;
+
+ /**
+ Returns all choices.
+ */
+ const wxArrayString& GetChoices() const;
+};
/**
- @class wxDataViewTextRendererAttr
-
- The same as wxDataViewTextRenderer but with support for font attributes.
- Font attributes are currently only supported under GTK+ and MSW.
+ @class wxDataViewDateRenderer
- @see wxDataViewModel::GetAttr and wxDataViewItemAttr.
+ This class is used by wxDataViewCtrl to render calendar controls.
@library{wxadv}
@category{dvc}
*/
-class wxDataViewTextRendererAttr : public wxDataViewTextRenderer
+class wxDataViewDateRenderer : public wxDataViewRenderer
{
public:
/**
The ctor.
*/
- wxDataViewTextRendererAttr(const wxString& varianttype = "string",
- wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
- int align = wxDVR_DEFAULT_ALIGNMENT);
+ wxDataViewDateRenderer(const wxString& varianttype = "datetime",
+ wxDataViewCellMode mode = wxDATAVIEW_CELL_ACTIVATABLE,
+ int align = wxDVR_DEFAULT_ALIGNMENT);
};
const wxVariant& value);
/**
- Create DC on request. Internal.
- */
- virtual wxDC* GetDC();
+ Return the attribute to be used for rendering.
+
+ This function may be called from Render() implementation to use the
+ attributes defined for the item if the renderer supports them.
+
+ Notice that when Render() is called, the wxDC object passed to it is
+ already set up to use the correct attributes (e.g. its font is set to
+ bold or italic version if wxDataViewItemAttr::GetBold() or GetItalic()
+ returns true) so it may not be necessary to call it explicitly if you
+ only want to render text using the items attributes.
+
+ @since 2.9.1
+ */
+ const wxDataViewItemAttr& GetAttr() const;
/**
Return size required to show content.
virtual wxSize GetSize() const = 0;
/**
- Overrride this so that the renderer can get the value from the editor
+ Override this so that the renderer can get the value from the editor
control (pointed to by @a editor):
@code
{
virtual bool HasEditorCtrl() const;
/**
- Overrride this to react to a left click.
+ Override this to react to a left click.
This method will only be called in @c wxDATAVIEW_CELL_ACTIVATABLE mode.
*/
virtual bool LeftClick( wxPoint cursor,
wxDC* dc, int state);
/**
- Overrride this to start a drag operation. Not yet supported.
+ Override this to start a drag operation. Not yet supported.
*/
virtual bool StartDrag(wxPoint cursor, wxRect cell,
wxDataViewModel* model,
data.push_back( wxVariant("row 3") );
listctrl->AppendItem( data );
@endcode
-
+
@beginStyleTable
See wxDataViewCtrl for the list of supported styles.
@endStyleTable
-
+
@beginEventEmissionTable
See wxDataViewCtrl for the list of events emitted by this class.
@endEventTable
@name Column management functions
*/
//@{
-
+
/**
Appends a column to the control and additionally appends a
column to the store with the type string.
/**
Appends a text column to the control and the store.
-
+
See wxDataViewColumn::wxDataViewColumn for more info about
the parameters.
*/
wxDataViewColumn *AppendTextColumn( const wxString &label,
wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
- int width = -1, wxAlignment align = wxALIGN_LEFT,
+ int width = -1, wxAlignment align = wxALIGN_LEFT,
int flags = wxDATAVIEW_COL_RESIZABLE );
/**
Appends a toggle column to the control and the store.
-
+
See wxDataViewColumn::wxDataViewColumn for more info about
the parameters.
*/
wxDataViewColumn *AppendToggleColumn( const wxString &label,
wxDataViewCellMode mode = wxDATAVIEW_CELL_ACTIVATABLE,
- int width = -1, wxAlignment align = wxALIGN_LEFT,
+ int width = -1, wxAlignment align = wxALIGN_LEFT,
int flags = wxDATAVIEW_COL_RESIZABLE );
/**
*/
wxDataViewColumn *AppendProgressColumn( const wxString &label,
wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
- int width = -1, wxAlignment align = wxALIGN_LEFT,
+ int width = -1, wxAlignment align = wxALIGN_LEFT,
int flags = wxDATAVIEW_COL_RESIZABLE );
/**
*/
wxDataViewColumn *AppendIconTextColumn( const wxString &label,
wxDataViewCellMode mode = wxDATAVIEW_CELL_INERT,
- int width = -1, wxAlignment align = wxALIGN_LEFT,
+ int width = -1, wxAlignment align = wxALIGN_LEFT,
int flags = wxDATAVIEW_COL_RESIZABLE );
/**
Inserts a column to the control and additionally inserts a
column to the list store with the type @a varianttype.
*/
- void InsertColumn( unsigned int pos, wxDataViewColumn *column,
+ void InsertColumn( unsigned int pos, wxDataViewColumn *column,
const wxString &varianttype );
/**
void PrependColumn( wxDataViewColumn *column, const wxString &varianttype );
//@}
-
-
+
+
/**
@name Item management functions
*/
//@{
-
+
/**
Appends an item (=row) to the control and store.
*/
respective column.
*/
bool GetToggleValue( unsigned int row, unsigned int col ) const;
-
+
//@}
};
and forwards most of its API to that class.
Additionally, it uses a wxImageList to store a list of icons.
- The main purpose of this class is to represent a possible replacement for
- wxTreeCtrl.
+ The main purpose of this class is to provide a simple upgrade path for code
+ using wxTreeCtrl.
@beginStyleTable
See wxDataViewCtrl for the list of supported styles.
@endStyleTable
-
+
@beginEventEmissionTable
See wxDataViewCtrl for the list of events emitted by this class.
@endEventTable
wxDataViewTreeCtrl();
/**
- Constructor. Calls Create().
+ Constructor.
+
+ Calls Create().
*/
wxDataViewTreeCtrl(wxWindow* parent, wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
- long style = wxDV_NO_HEADER,
+ long style = wxDV_NO_HEADER | wxDV_ROW_LINES,
const wxValidator& validator = wxDefaultValidator);
/**
/**
Creates the control and a wxDataViewTreeStore as its internal model.
+
+ The default tree column created by this method is an editable column
+ using wxDataViewIconTextRenderer as its renderer.
*/
bool Create(wxWindow* parent, wxWindowID id,
const wxPoint& pos = wxDefaultPosition,
const wxSize& size = wxDefaultSize,
- long style = wxDV_NO_HEADER,
+ long style = wxDV_NO_HEADER | wxDV_ROW_LINES,
const wxValidator& validator = wxDefaultValidator);
/**
int icon = -1,
wxClientData* data = NULL);
+ /**
+ Returns true if item is a container.
+ */
+ bool IsContainer( const wxDataViewItem& item );
+
/**
Calls the same method from wxDataViewTreeStore but uses
an index position in the image list instead of a wxIcon.
Process a @c wxEVT_COMMAND_DATAVIEW_ITEM_DROP_POSSIBLE event.
@event{EVT_DATAVIEW_ITEM_DROP(id, func)}
Process a @c wxEVT_COMMAND_DATAVIEW_ITEM_DROP event.
+ @event{EVT_DATAVIEW_CACHE_HINT(id, func)}
+ Process a @c wxEVT_COMMAND_DATAVIEW_CACHE_HINT event.
@endEventTable
-
+
@library{wxadv}
@category{events,dvc}
*/
Gets the data buffer for a drop data transfer.
*/
void *GetDataBuffer() const;
+
+ /**
+ Return the first row that will be displayed.
+ */
+ int GetCacheFrom() const;
+
+ /**
+ Return the last row that will be displayed.
+ */
+ int GetCacheTo() const;
};
projects / wxWidgets.git / blobdiff