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wxFrameManager

wxFrameManager is the central class of the wxAUI class framework.

See also wxAUI overview.

wxFrameManager manages the panes associated with it for a particular wxFrame, using a pane's wxPaneInfo information to determine each pane's docking and floating behavior. wxFrameManager uses wxWidgets' sizer mechanism to plan the layout of each frame. It uses a replaceable dock art class to do all drawing, so all drawing is localized in one area, and may be customized depending on an applications' specific needs.

wxFrameManager works as follows: The programmer adds panes to the class, or makes changes to existing pane properties (dock position, floating state, show state, etc.). To apply these changes, wxFrameManager's Update() function is called. This batch processing can be used to avoid flicker, by modifying more than one pane at a time, and then "committing" all of the changes at once by calling Update().

Panes can be added quite easily:

wxTextCtrl* text1 = new wxTextCtrl(this, -1);
wxTextCtrl* text2 = new wxTextCtrl(this, -1);
m_mgr.AddPane(text1, wxLEFT, wxT("Pane Caption"));
m_mgr.AddPane(text2, wxBOTTOM, wxT("Pane Caption"));
m_mgr.Update();
Later on, the positions can be modified easily. The following will float an existing pane in a tool window:

m_mgr.GetPane(text1).Float();
Layers, Rows and Directions, Positions

Inside wxAUI, the docking layout is figured out by checking several pane parameters. Four of these are important for determining where a pane will end up:

Direction: Each docked pane has a direction, Top, Bottom, Left, Right, or Center. This is fairly self-explanatory. The pane will be placed in the location specified by this variable.

Position: More than one pane can be placed inside of a dock. Imagine to panes being docked on the left side of a window. One pane can be placed over another. In proportionally managed docks, the pane position indicates it's sequential position, starting with zero. So, in our scenario with two panes docked on the left side, the top pane in the dock would have position 0, and the second one would occupy position 1.

Row: A row can allow for two docks to be placed next to each other. One of the most common places for this to happen is in the toolbar. Multiple toolbar rows are allowed, the first row being in row 0, and the second in row 1. Rows can also be used on vertically docked panes.

Layer: A layer is akin to an onion. Layer 0 is the very center of the managed pane. Thus, if a pane is in layer 0, it will be closest to the center window (also sometimes known as the "content window"). Increasing layers "swallow up" all layers of a lower value. This can look very similar to multiple rows, but is different because all panes in a lower level yield to panes in higher levels. The best way to understand layers is by running the wxAUI sample.

Derived from

wxEvent

Include files

<wx/aui/aui.h>

See also

wxPaneInfo

Data structures

enum wxFrameManagerDock
{
    wxAUI_DOCK_NONE = 0,
    wxAUI_DOCK_TOP = 1,
    wxAUI_DOCK_RIGHT = 2,
    wxAUI_DOCK_BOTTOM = 3,
    wxAUI_DOCK_LEFT = 4,
    wxAUI_DOCK_CENTER = 5,
    wxAUI_DOCK_CENTRE = wxAUI_DOCK_CENTER
}

enum wxFrameManagerOption

    wxAUI_MGR_ALLOW_FLOATING           = 1 << 0,
    wxAUI_MGR_ALLOW_ACTIVE_PANE        = 1 << 1,
    wxAUI_MGR_TRANSPARENT_DRAG         = 1 << 2,
    wxAUI_MGR_TRANSPARENT_HINT         = 1 << 3,
    wxAUI_MGR_VENETIAN_BLINDS_HINT     = 1 << 4,
    wxAUI_MGR_RECTANGLE_HINT           = 1 << 5,
    wxAUI_MGR_HINT_FADE                = 1 << 6,
    wxAUI_MGR_NO_VENETIAN_BLINDS_FADE  = 1 << 7,

    wxAUI_MGR_DEFAULT = wxAUI_MGR_ALLOW_FLOATING |
                        wxAUI_MGR_TRANSPARENT_HINT |
                        wxAUI_MGR_HINT_FADE |
                        wxAUI_MGR_NO_VENETIAN_BLINDS_FADE

Members

wxFrameManager::wxFrameManager
wxFrameManager::~wxFrameManager
wxFrameManager::AddPane
wxFrameManager::DetachPane
wxFrameManager::GetAllPanes
wxFrameManager::GetArtProvider
wxFrameManager::GetFlags
wxFrameManager::GetManagedWindow
wxFrameManager::GetPane
wxFrameManager::HideHint
wxFrameManager::InsertPane
wxFrameManager::LoadPaneInfo
wxFrameManager::LoadPerspective
wxFrameManager::ProcessDockResult
wxFrameManager::SavePaneInfo
wxFrameManager::SavePerspective
wxFrameManager::SetArtProvider
wxFrameManager::SetFlags
wxFrameManager::SetManagedWindow
wxFrameManager::ShowHint
wxFrameManager::UnInit
wxFrameManager::Update


wxFrameManager::wxFrameManager

wxFrameManager(wxWindow* managed_wnd = NULL, unsigned int flags = wxAUI_MGR_DEFAULT)

Constructor. frame specifies the wxFrame which should be managed. flags specifies options which allow the frame management behavior to be modified.


wxFrameManager::~wxFrameManager

~wxFrameManager()


wxFrameManager::AddPane

bool AddPane(wxWindow* window, const wxPaneInfo& pane_info)

bool AddPane(wxWindow* window, int direction = wxLEFT, const wxString& caption = wxEmptyString)

bool AddPane(wxWindow* window, const wxPaneInfo& pane_info, const wxPoint& drop_pos)

AddPane() tells the frame manager to start managing a child window. There are several versions of this function. The first version allows the full spectrum of pane parameter possibilities. The second version is used for simpler user interfaces which do not require as much configuration. The last version allows a drop position to be specified, which will determine where the pane will be added.


wxFrameManager::DetachPane

bool DetachPane(wxWindow* window)

Tells the wxFrameManager to stop managing the pane specified by window. The window, if in a floated frame, is reparented to the frame managed by wxFrameManager.


wxFrameManager::GetAllPanes

wxPaneInfoArray& GetAllPanes()

Returns an array of all panes managed by the frame manager.


wxFrameManager::GetArtProvider

wxDockArt* GetArtProvider() const

Returns the current art provider being used.


wxFrameManager::GetFlags

unsigned int GetFlags() const

Returns the current manager's flags.


wxFrameManager::GetManagedWindow

wxWindow* GetManagedWindow() const

Returns the frame currently being managed by wxFrameManager.


wxFrameManager::GetPane

wxPaneInfo& GetPane(wxWindow* window)

wxPaneInfo& GetPane(const wxString& name)

GetPane is used to lookup a wxPaneInfo object either by window pointer or by pane name, which acts as a unique id for a window pane. The returned wxPaneInfo object may then be modified to change a pane's look, state or position. After one or more modifications to wxPaneInfo, wxFrameManager::Update() should be called to commit the changes to the user interface. If the lookup failed (meaning the pane could not be found in the manager), a call to the returned wxPaneInfo's IsOk() method will return false.


wxFrameManager::HideHint

void HideHint()

HideHint() hides any docking hint that may be visible.


wxFrameManager::InsertPane

bool InsertPane(wxWindow* window, const wxPaneInfo& insert_location, int insert_level = wxAUI_INSERT_PANE)

This method is used to insert either a previously unmanaged pane window into the frame manager, or to insert a currently managed pane somewhere else. InsertPane will push all panes, rows, or docks aside and insert the window into the position specified by insert_location. Because insert_location can specify either a pane, dock row, or dock layer, the insert_level parameter is used to disambiguate this. The parameter insert_level can take a value of wxAUI_INSERT_PANE, wxAUI_INSERT_ROW or wxAUI_INSERT_DOCK.


wxFrameManager::LoadPaneInfo

void LoadPaneInfo(wxString pane_part, wxPaneInfo& pane)

LoadPaneInfo() is similar to to LoadPerspective, with the exception that it only loads information about a single pane. It is used in combination with SavePaneInfo().


wxFrameManager::LoadPerspective

bool LoadPerspective(const wxString& perspective, bool update = true)

Loads a saved perspective. If update is true, wxFrameManager::Update() is automatically invoked, thus realizing the saved perspective on screen.


wxFrameManager::ProcessDockResult

bool ProcessDockResult(wxPaneInfo& target, const wxPaneInfo& new_pos)

ProcessDockResult() is a protected member of the wxAUI layout manager. It can be overridden by derived classes to provide custom docking calculations.


wxFrameManager::SavePaneInfo

wxString SavePaneInfo(wxPaneInfo& pane)

SavePaneInfo() is similar to SavePerspective, with the exception that it only saves information about a single pane. It is used in combination with LoadPaneInfo().


wxFrameManager::SavePerspective

wxString SavePerspective()

Saves the entire user interface layout into an encoded wxString, which can then be stored by the application (probably using wxConfig). When a perspective is restored using LoadPerspective(), the entire user interface will return to the state it was when the perspective was saved.


wxFrameManager::SetArtProvider

void SetArtProvider(wxDockArt* art_provider)

Instructs wxFrameManager to use art provider specified by parameter art_provider for all drawing calls. This allows plugable look-and-feel features. The previous art provider object, if any, will be deleted by wxFrameManager.


wxFrameManager::SetFlags

void SetFlags(unsigned int flags)

This method is used to specify wxFrameManager's settings flags. flags specifies options which allow the frame management behavior to be modified.


wxFrameManager::SetManagedWindow

void SetManagedWindow(wxWindow* managed_wnd)

Called to specify the frame or window which is to be managed by wxFrameManager. Frame management is not restricted to just frames. Child windows or custom controls are also allowed.


wxFrameManager::ShowHint

void ShowHint(const wxRect& rect)

This function is used by controls to explicitly show a hint window at the specified rectangle. It is rarely called, and is mostly used by controls implementing custom pane drag/drop behaviour. The specified rectangle should be in screen coordinates.


wxFrameManager::UnInit

void UnInit()

Uninitializes the framework and should be called before a managed frame or window is destroyed. UnInit() is usually called in the managed wxFrame's destructor. It is necessary to call this function before the managed frame or window is destroyed, otherwise the manager cannot remove its custom event handlers from a window.


wxFrameManager::Update

void Update()

This method is called after any number of changes are made to any of the managed panes. Update() must be invoked after AddPane() or InsertPane() are called in order to "realize" or "commit" the changes. In addition, any number of changes may be made to wxPaneInfo structures (retrieved with wxFrameManager::GetPane), but to realize the changes, Update() must be called. This construction allows pane flicker to be avoided by updating the whole layout at one time.