# wxRibbonArtProvider Class Reference
[Ribbon User Interface]

`#include <wx/ribbon/art.h>`

## Detailed Description

wxRibbonArtProvider is responsible for drawing all the components of the ribbon interface.

This allows a ribbon bar to have a pluggable look-and-feel, while retaining the same underlying behaviour. As a single art provider is used for all ribbon components, a ribbon bar usually has a consistent (though unique) appearance.

By default, a wxRibbonBar uses an instance of this class called `wxRibbonDefaultArtProvider`, which resolves to `wxRibbonAUIArtProvider`, `wxRibbonMSWArtProvider`, or `wxRibbonOSXArtProvider` - whichever is most appropriate to the current platform. These art providers are all slightly configurable with regard to colours and fonts, but for larger modifications, you can derive from one of these classes, or write a completely new art provider class. Call wxRibbonBar::SetArtProvider to change the art provider being used.

##

Library: wxRibbon

Category: Ribbon User Interface

See also:
  wxRibbonBar

## Public Member Functions
| wxRibbonArtProvider ()
| Constructor.
virtual | ~wxRibbonArtProvider ()
| Destructor.
virtual wxRibbonArtProvider * | Clone () const =0
| Create a new art provider which is a clone of this one.
virtual void | SetFlags (long flags)=0
| Set the style flags.
virtual long | GetFlags () const =0
| Get the previously set style flags.
virtual int | GetMetric (int id) const =0
| Get the value of a certain integer setting.
virtual void | SetMetric (int id, int new_val)=0
| Set the value of a certain integer setting to the value new_val.
virtual void | SetFont (int id, const wxFont &font)=0
| Set the value of a certain font setting to the value font.
virtual wxFont | GetFont (int id) const =0
| Get the value of a certain font setting.
virtual wxColour | GetColour (int id) const =0
| Get the value of a certain colour setting.
virtual void | SetColour (int id, const wxColor &colour)=0
| Set the value of a certain colour setting to the value colour.
wxColour | GetColor (int id) const
void | SetColor (int id, const wxColour &color)
virtual void | GetColourScheme (wxColour *primary, wxColour *secondary, wxColour *tertiary) const =0
| Get the current colour scheme.
virtual void | SetColourScheme (const wxColour &primary, const wxColour &secondary, const wxColour &tertiary)=0
| Set all applicable colour settings from a few base colours.
virtual void | DrawTabCtrlBackground (wxDC &dc, wxWindow *wnd, const wxRect &rect)=0
| Draw the background of the tab region of a ribbon bar.
virtual void | DrawTab (wxDC &dc, wxWindow *wnd, const wxRibbonPageTabInfo &tab)=0
| Draw a single tab in the tab region of a ribbon bar.
virtual void | DrawTabSeparator (wxDC &dc, wxWindow *wnd, const wxRect &rect, double visibility)=0
| Draw a separator between two tabs in a ribbon bar.
virtual void | DrawPageBackground (wxDC &dc, wxWindow *wnd, const wxRect &rect)=0
| Draw the background of a ribbon page.
virtual void | DrawScrollButton (wxDC &dc, wxWindow *wnd, const wxRect &rect, long style)=0
| Draw a ribbon-style scroll button.
virtual void | DrawPanelBackground (wxDC &dc, wxRibbonPanel *wnd, const wxRect &rect)=0
| Draw the background and chrome for a ribbon panel.
virtual void | DrawGalleryBackground (wxDC &dc, wxRibbonGallery *wnd, const wxRect &rect)=0
| Draw the background and chrome for a wxRibbonGallery control.
virtual void | DrawGalleryItemBackground (wxDC &dc, wxRibbonGallery *wnd, const wxRect &rect, wxRibbonGalleryItem *item)=0
| Draw the background of a single item in a wxRibbonGallery control.
virtual void | DrawMinimisedPanel (wxDC &dc, wxRibbonPanel *wnd, const wxRect &rect, wxBitmap &bitmap)=0
| Draw a minimised ribbon panel.
virtual void | DrawButtonBarBackground (wxDC &dc, wxWindow *wnd, const wxRect &rect)=0
| Draw the background for a wxRibbonButtonBar control.
virtual void | DrawButtonBarButton (wxDC &dc, wxWindow *wnd, const wxRect &rect, wxRibbonButtonBarButtonKind kind, long state, const wxString &label, const wxBitmap &bitmap_large, const wxBitmap &bitmap_small)=0
| Draw a single button for a wxRibbonButtonBar control.
virtual void | DrawToolBarBackground (wxDC &dc, wxWindow *wnd, const wxRect &rect)=0
| Draw the background for a wxRibbonToolBar control.
virtual void | DrawToolGroupBackground (wxDC &dc, wxWindow *wnd, const wxRect &rect)=0
| Draw the background for a group of tools on a wxRibbonToolBar control.
virtual void | DrawTool (wxDC &dc, wxWindow *wnd, const wxRect &rect, const wxBitmap &bitmap, wxRibbonButtonKind kind, long state)=0
| Draw a single tool (for a wxRibbonToolBar control).
virtual void | GetBarTabWidth (wxDC &dc, wxWindow *wnd, const wxString &label, const wxBitmap &bitmap, int *ideal, int *small_begin_need_separator, int *small_must_have_separator, int *minimum)=0
| Calculate the ideal and minimum width (in pixels) of a tab in a ribbon bar.
virtual int | GetTabCtrlHeight (wxDC &dc, wxWindow *wnd, const wxRibbonPageTabInfoArray &pages)=0
| Calculate the height (in pixels) of the tab region of a ribbon bar.
virtual wxSize | GetScrollButtonMinimumSize (wxDC &dc, wxWindow *wnd, long style)=0
| Calculate the minimum size (in pixels) of a scroll button.
virtual wxSize | GetPanelSize (wxDC &dc, const wxRibbonPanel *wnd, wxSize client_size, wxPoint *client_offset)=0
| Calculate the size of a panel for a given client size.
virtual wxSize | GetPanelClientSize (wxDC &dc, const wxRibbonPanel *wnd, wxSize size, wxPoint *client_offset)=0
| Calculate the client size of a panel for a given overall size.
virtual wxSize | GetGallerySize (wxDC &dc, const wxRibbonGallery *wnd, wxSize client_size)=0
| Calculate the size of a wxRibbonGallery control for a given client size.
virtual wxSize | GetGalleryClientSize (wxDC &dc, const wxRibbonGallery *wnd, wxSize size, wxPoint *client_offset, wxRect *scroll_up_button, wxRect *scroll_down_button, wxRect *extension_button)=0
| Calculate the client size of a wxRibbonGallery control for a given size.
virtual wxRect | GetPageBackgroundRedrawArea (wxDC &dc, const wxRibbonPage *wnd, wxSize page_old_size, wxSize page_new_size)=0
| Calculate the portion of a page background which needs to be redrawn when a page is resized.
virtual bool | GetButtonBarButtonSize (wxDC &dc, wxWindow *wnd, wxRibbonButtonBarButtonKind kind, wxRibbonButtonBarButtonState size, const wxString &label, wxSize bitmap_size_large, wxSize bitmap_size_small, wxSize *button_size, wxRect *normal_region, wxRect *dropdown_region)=0
| Calculate the size of a button within a wxRibbonButtonBar.
virtual wxSize | GetMinimisedPanelMinimumSize (wxDC &dc, const wxRibbonPanel *wnd, wxSize *desired_bitmap_size, wxDirection *expanded_panel_direction)=0
| Calculate the size of a minimised ribbon panel.
virtual wxSize | GetToolSize (wxDC &dc, wxWindow *wnd, wxSize bitmap_size, wxRibbonButtonKind kind, bool is_first, bool is_last, wxRect *dropdown_region)=0
| Calculate the size of a tool within a wxRibbonToolBar.

List of all members.

## Constructor & Destructor Documentation

wxRibbonArtProvider::wxRibbonArtProvider | ( |  | ) |

Constructor.

virtual wxRibbonArtProvider::~wxRibbonArtProvider | ( |  | ) | `[virtual]`

Destructor.

## Member Function Documentation

virtual wxRibbonArtProvider* wxRibbonArtProvider::Clone | ( |  | ) | const`[pure virtual]`

Create a new art provider which is a clone of this one.

virtual void wxRibbonArtProvider::DrawButtonBarBackground | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background for a wxRibbonButtonBar control.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto (which will typically be the button bar itself, though this is not guaranteed).
  | rect | The rectangle within which to draw.

virtual void wxRibbonArtProvider::DrawButtonBarButton | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect,
|  | wxRibbonButtonBarButtonKind | kind,
|  | long | state,
|  | const wxString & | label,
|  | const wxBitmap & | bitmap_large,
|  | const wxBitmap & | bitmap_small |
| ) |  |  | `[pure virtual]`

Draw a single button for a wxRibbonButtonBar control.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto.
  | rect | The rectangle within which to draw. The size of this rectangle will be a size previously returned by GetButtonBarButtonSize(), and the rectangle will be entirely within a rectangle on the same device context previously painted with DrawButtonBarBackground().
  | kind | The kind of button to draw (normal, dropdown or hybrid).
  | state | Combination of a size flag and state flags from the wxRibbonButtonBarButtonState enumeration.
  | label | The label of the button.
  | bitmap_large | The large bitmap of the button (or the large disabled bitmap when wxRIBBON_BUTTONBAR_BUTTON_DISABLED is set in state).
  | bitmap_small | The small bitmap of the button (or the small disabled bitmap when wxRIBBON_BUTTONBAR_BUTTON_DISABLED is set in state).

virtual void wxRibbonArtProvider::DrawGalleryBackground | ( | wxDC & | dc,
|  | wxRibbonGallery * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background and chrome for a wxRibbonGallery control.

This should draw the border, background, scroll buttons, extension button, and any other UI elements which are not attached to a specific gallery item.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto, which is always the gallery whose background and chrome is being drawn. Attributes used during drawing like the gallery hover state and individual button states can be queried from this parameter by wxRibbonGallery::IsHovered(), wxRibbonGallery::GetExtensionButtonState(), wxRibbonGallery::GetUpButtonState(), and wxRibbonGallery::GetDownButtonState().
  | rect | The rectangle within which to draw. This rectangle is the entire area of the gallery control, not just the client rectangle.

virtual void wxRibbonArtProvider::DrawGalleryItemBackground | ( | wxDC & | dc,
|  | wxRibbonGallery * | wnd,
|  | const wxRect & | rect,
|  | wxRibbonGalleryItem * | item |
| ) |  |  | `[pure virtual]`

Draw the background of a single item in a wxRibbonGallery control.

This is painted on top of a gallery background, and behind the items bitmap. Unlike DrawButtonBarButton() and DrawTool(), it is not expected to draw the item bitmap - that is done by the gallery control itself.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto, which is always the gallery which contains the item being drawn.
  | rect | The rectangle within which to draw. The size of this rectangle will be the size of the item's bitmap, expanded by gallery item padding values (wxRIBBON_ART_GALLERY_BITMAP_PADDING_LEFT_SIZE, wxRIBBON_ART_GALLERY_BITMAP_PADDING_RIGHT_SIZE, wxRIBBON_ART_GALLERY_BITMAP_PADDING_TOP_SIZE, and wxRIBBON_ART_GALLERY_BITMAP_PADDING_BOTTOM_SIZE). The drawing rectangle will be entirely within a rectangle on the same device context previously painted with DrawGalleryBackground().
  | item | The item whose background is being painted. Typically the background will vary if the item is hovered, active, or selected; wxRibbonGallery::GetSelection(), wxRibbonGallery::GetActiveItem(), and wxRibbonGallery::GetHoveredItem() can be called to test if the given item is in one of these states.

virtual void wxRibbonArtProvider::DrawMinimisedPanel | ( | wxDC & | dc,
|  | wxRibbonPanel * | wnd,
|  | const wxRect & | rect,
|  | wxBitmap & | bitmap |
| ) |  |  | `[pure virtual]`

Draw a minimised ribbon panel.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto, which is always the panel which is minimised. The panel label can be obtained from this window. The minimised icon obtained from querying the window may not be the size requested by GetMinimisedPanelMinimumSize() - the bitmap argument contains the icon in the requested size.
  | rect | The rectangle within which to draw. The size of the rectangle will be at least the size returned by GetMinimisedPanelMinimumSize().
  | bitmap | A copy of the panel's minimised bitmap rescaled to the size returned by GetMinimisedPanelMinimumSize().

virtual void wxRibbonArtProvider::DrawPageBackground | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background of a ribbon page.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto (which is commonly the wxRibbonPage whose background is being drawn, but doesn't have to be).
  | rect | The rectangle within which to draw.

See also:
  GetPageBackgroundRedrawArea

virtual void wxRibbonArtProvider::DrawPanelBackground | ( | wxDC & | dc,
|  | wxRibbonPanel * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background and chrome for a ribbon panel.

This should draw the border, background, label, and any other items of a panel which are outside the client area of a panel.

Note that when a panel is minimised, this function is not called - only DrawMinimisedPanel() is called, so a background should be explicitly painted by that if required.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto, which is always the panel whose background and chrome is being drawn. The panel label and other panel attributes can be obtained by querying this.
  | rect | The rectangle within which to draw.

virtual void wxRibbonArtProvider::DrawScrollButton | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect,
|  | long | style |
| ) |  |  | `[pure virtual]`

Draw a ribbon-style scroll button.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto.
  | rect | The rectangle within which to draw. The size of this rectangle will be at least the size returned by GetScrollButtonMinimumSize() for a scroll button with the same style. For tab scroll buttons, this rectangle will be entirely within a rectangle on the same device context previously painted with DrawTabCtrlBackground(), but this is not guaranteed for other types of button (for example, page scroll buttons will not be painted on an area previously painted with DrawPageBackground()).
  | style | A combination of flags from wxRibbonScrollButtonStyle, including a direction, a for flag, and one or more states.

virtual void wxRibbonArtProvider::DrawTab | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRibbonPageTabInfo & | tab |
| ) |  |  | `[pure virtual]`

Draw a single tab in the tab region of a ribbon bar.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto (not the wxRibbonPage associated with the tab being drawn).
  | tab | The rectangle within which to draw, and also the tab label, icon, and state (active and/or hovered). The drawing rectangle will be entirely within a rectangle on the same device context previously painted with DrawTabCtrlBackground(). The rectangle's width will be at least the minimum value returned by GetBarTabWidth(), and height will be the value returned by GetTabCtrlHeight().

virtual void wxRibbonArtProvider::DrawTabCtrlBackground | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background of the tab region of a ribbon bar.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto.
  | rect | The rectangle within which to draw.

virtual void wxRibbonArtProvider::DrawTabSeparator | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect,
|  | double | visibility |
| ) |  |  | `[pure virtual]`

Draw a separator between two tabs in a ribbon bar.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto.
  | rect | The rectangle within which to draw, which will be entirely within a rectangle on the same device context previously painted with DrawTabCtrlBackground().
  | visibility | The opacity with which to draw the separator. Values are in the range [0, 1], with 0 being totally transparent, and 1 being totally opaque.

virtual void wxRibbonArtProvider::DrawTool | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect,
|  | const wxBitmap & | bitmap,
|  | wxRibbonButtonKind | kind,
|  | long | state |
| ) |  |  | `[pure virtual]`

Draw a single tool (for a wxRibbonToolBar control).

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto. In most cases this will be a wxRibbonToolBar, but it doesn't have to be.
  | rect | The rectangle within which to draw. The size of this rectangle will at least the size returned by GetToolSize(), and the height of it will be equal for all tools within the same group. The rectangle will be entirely within a rectangle on the same device context previously painted with DrawToolGroupBackground().
  | bitmap | The bitmap to use as the tool's foreground. If the tool is a hybrid or dropdown tool, then the foreground should also contain a standard dropdown button.
  | kind | The kind of tool to draw (normal, dropdown, or hybrid).
  | state | A combination of wxRibbonToolBarToolState flags giving the state of the tool and it's relative position within a tool group.

virtual void wxRibbonArtProvider::DrawToolBarBackground | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background for a wxRibbonToolBar control.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The which is being drawn onto. In most cases this will be a wxRibbonToolBar, but it doesn't have to be.
  | rect | The rectangle within which to draw. Some of this rectangle will later be drawn over using DrawToolGroupBackground() and DrawTool(), but not all of it will (unless there is only a single group of tools).

virtual void wxRibbonArtProvider::DrawToolGroupBackground | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRect & | rect |
| ) |  |  | `[pure virtual]`

Draw the background for a group of tools on a wxRibbonToolBar control.

Parameters:

  | dc | The device context to draw onto.
  | wnd | The window which is being drawn onto. In most cases this will be a wxRibbonToolBar, but it doesn't have to be.
  | rect | The rectangle within which to draw. This rectangle is a union of the individual tools' rectangles. As there are no gaps between tools, this rectangle will be painted over exactly once by calls to DrawTool(). The group background could therefore be painted by DrawTool(), though it can be conceptually easier and more efficient to draw it all at once here. The rectangle will be entirely within a rectangle on the same device context previously painted with DrawToolBarBackground().

virtual void wxRibbonArtProvider::GetBarTabWidth | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxString & | label,
|  | const wxBitmap & | bitmap,
|  | int * | ideal,
|  | int * | small_begin_need_separator,
|  | int * | small_must_have_separator,
|  | int * | minimum |
| ) |  |  | `[pure virtual]`

Calculate the ideal and minimum width (in pixels) of a tab in a ribbon bar.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The window onto which the tab will eventually be drawn.
  | label | The tab's label (or wxEmptyString if it has none).
  | bitmap | The tab's icon (or wxNullBitmap if it has none).
  `[out]` | ideal | The ideal width (in pixels) of the tab.
  `[out]` | small_begin_need_separator | A size less than the ideal size, at which a tab separator should begin to be drawn (i.e. drawn, but still fairly transparent).
  `[out]` | small_must_have_separator | A size less than the small_begin_need_separator size, at which a tab separator must be drawn (i.e. drawn at full opacity).
  `[out]` | minimum | A size less than the small_must_have_separator size, and greater than or equal to zero, which is the minimum pixel width for the tab.

virtual bool wxRibbonArtProvider::GetButtonBarButtonSize | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | wxRibbonButtonBarButtonKind | kind,
|  | wxRibbonButtonBarButtonState | size,
|  | const wxString & | label,
|  | wxSize | bitmap_size_large,
|  | wxSize | bitmap_size_small,
|  | wxSize * | button_size,
|  | wxRect * | normal_region,
|  | wxRect * | dropdown_region |
| ) |  |  | `[pure virtual]`

Calculate the size of a button within a wxRibbonButtonBar.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The window onto which the button will eventually be drawn (which is normally a wxRibbonButtonBar, though this is not guaranteed).
  | kind | The kind of button.
  | size | The size-class to calculate the size for. Buttons on a button bar can have three distinct sizes: wxRIBBON_BUTTONBAR_BUTTON_SMALL, wxRIBBON_BUTTONBAR_BUTTON_MEDIUM, and wxRIBBON_BUTTONBAR_BUTTON_LARGE. If the requested size-class is not applicable, then false should be returned.
  | label | The label of the button.
  | bitmap_size_large | The size of all "large" bitmaps on the button bar.
  | bitmap_size_small | The size of all "small" bitmaps on the button bar.
  `[out]` | button_size | The size, in pixels, of the button.
  `[out]` | normal_region | The region of the button which constitutes the normal button.
  `[out]` | dropdown_region | The region of the button which constitutes the dropdown button.

Returns:
  true if a size exists for the button, false otherwise.

wxColour wxRibbonArtProvider::GetColor | ( | int | id | ) | const

See also:
  wxRibbonArtProvider::GetColour()

virtual wxColour wxRibbonArtProvider::GetColour | ( | int | id | ) | const`[pure virtual]`

Get the value of a certain colour setting.

id can be one of the colour values of wxRibbonArtSetting.

virtual void wxRibbonArtProvider::GetColourScheme | ( | wxColour * | primary,
|  | wxColour * | secondary,
|  | wxColour * | tertiary |
| ) |  |  | const`[pure virtual]`

Get the current colour scheme.

Returns three colours such that if SetColourScheme() were called with them, the colour scheme would be restored to what it was when SetColourScheme() was last called. In practice, this usually means that the returned values are the three colours given in the last call to SetColourScheme(), however if SetColourScheme() performs an idempotent operation upon the colours it is given (like clamping a component of the colour), then the returned values may not be the three colours given in the last call to SetColourScheme(). If SetColourScheme() has not been called, then the returned values should result in a colour scheme similar to, if not identical to, the default colours of the art provider. Note that if SetColour() is called, then GetColourScheme() does not try and return a colour scheme similar to colours being used - it's return values are dependant upon the last values given to SetColourScheme(), as described above.

Parameters:

  `[out]` | primary | Pointer to a location to store the primary colour, or NULL.
  `[out]` | secondary | Pointer to a location to store the secondary colour, or NULL.
  `[out]` | tertiary | Pointer to a location to store the tertiary colour, or NULL.

virtual long wxRibbonArtProvider::GetFlags | ( |  | ) | const`[pure virtual]`

Get the previously set style flags.

virtual wxFont wxRibbonArtProvider::GetFont | ( | int | id | ) | const`[pure virtual]`

Get the value of a certain font setting.

id can be one of the font values of wxRibbonArtSetting.

virtual wxSize wxRibbonArtProvider::GetGalleryClientSize | ( | wxDC & | dc,
|  | const wxRibbonGallery * | wnd,
|  | wxSize | size,
|  | wxPoint * | client_offset,
|  | wxRect * | scroll_up_button,
|  | wxRect * | scroll_down_button,
|  | wxRect * | extension_button |
| ) |  |  | `[pure virtual]`

Calculate the client size of a wxRibbonGallery control for a given size.

This should act as the inverse to GetGallerySize(), and decrement the given size by enough to fir the gallery border, buttons, and other chrome.

Parameters:

  | dc | A device context to use if one is required for size calculations.
  | wnd | The gallery in question.
  | size | The overall size to calculate the client size for.
  `[out]` | client_offset | The position within the given size at which the returned client size begins.
  `[out]` | scroll_up_button | The rectangle within the given size which the scroll up button occupies.
  `[out]` | scroll_down_button | The rectangle within the given size which the scroll down button occupies.
  `[out]` | extension_button | The rectangle within the given size which the extension button occupies.

virtual wxSize wxRibbonArtProvider::GetGallerySize | ( | wxDC & | dc,
|  | const wxRibbonGallery * | wnd,
|  | wxSize | client_size |
| ) |  |  | `[pure virtual]`

Calculate the size of a wxRibbonGallery control for a given client size.

This should increment the given size by enough to fit the gallery border, buttons, and any other chrome.

Parameters:

  | dc | A device context to use if one is required for size calculations.
  | wnd | The gallery in question.
  | client_size | The client size.

See also:
  GetGalleryClientSize()

virtual int wxRibbonArtProvider::GetMetric | ( | int | id | ) | const`[pure virtual]`

Get the value of a certain integer setting.

id can be one of the size values of wxRibbonArtSetting.

virtual wxSize wxRibbonArtProvider::GetMinimisedPanelMinimumSize | ( | wxDC & | dc,
|  | const wxRibbonPanel * | wnd,
|  | wxSize * | desired_bitmap_size,
|  | wxDirection * | expanded_panel_direction |
| ) |  |  | `[pure virtual]`

Calculate the size of a minimised ribbon panel.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The ribbon panel in question. Attributes like the panel label can be queried from this.
  `[out]` | desired_bitmap_size | Optional parameter which is filled with the size of the bitmap suitable for a minimised ribbon panel.
  `[out]` | expanded_panel_direction | Optional parameter which is filled with the direction of the minimised panel (`wxEAST` or `wxSOUTH` depending on the style).

virtual wxRect wxRibbonArtProvider::GetPageBackgroundRedrawArea | ( | wxDC & | dc,
|  | const wxRibbonPage * | wnd,
|  | wxSize | page_old_size,
|  | wxSize | page_new_size |
| ) |  |  | `[pure virtual]`

Calculate the portion of a page background which needs to be redrawn when a page is resized.

To optimise the drawing of page backgrounds, as small an area as possible should be returned. Of course, if the way in which a background is drawn means that the entire background needs to be repainted on resize, then the entire new size should be returned.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The page which is being resized.
  | page_old_size | The size of the page prior to the resize (which has already been painted).
  | page_new_size | The size of the page after the resize.

virtual wxSize wxRibbonArtProvider::GetPanelClientSize | ( | wxDC & | dc,
|  | const wxRibbonPanel * | wnd,
|  | wxSize | size,
|  | wxPoint * | client_offset |
| ) |  |  | `[pure virtual]`

Calculate the client size of a panel for a given overall size.

This should act as the inverse to GetPanelSize(), and decrement the given size by enough to fit the panel label and other chrome.

Parameters:

  | dc | A device context to use if one is required for size calculations.
  | wnd | The ribbon panel in question.
  | size | The overall size to calculate client size for.
  `[out]` | client_offset | The offset where the returned client size begins within the given size (may be NULL).

See also:
  GetPanelSize()

virtual wxSize wxRibbonArtProvider::GetPanelSize | ( | wxDC & | dc,
|  | const wxRibbonPanel * | wnd,
|  | wxSize | client_size,
|  | wxPoint * | client_offset |
| ) |  |  | `[pure virtual]`

Calculate the size of a panel for a given client size.

This should increment the given size by enough to fit the panel label and other chrome.

Parameters:

  | dc | A device context to use if one is required for size calculations.
  | wnd | The ribbon panel in question.
  | client_size | The client size.
  `[out]` | client_offset | The offset where the client rectangle begins within the panel (may be NULL).

See also:
  GetPanelClientSize()

virtual wxSize wxRibbonArtProvider::GetScrollButtonMinimumSize | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | long | style |
| ) |  |  | `[pure virtual]`

Calculate the minimum size (in pixels) of a scroll button.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The window onto which the scroll button will eventually be drawn.
  | style | A combination of flags from wxRibbonScrollButtonStyle, including a direction, and a for flag (state flags may be given too, but should be ignored, as a button should retain a constant size, regardless of its state).

virtual int wxRibbonArtProvider::GetTabCtrlHeight | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | const wxRibbonPageTabInfoArray & | pages |
| ) |  |  | `[pure virtual]`

Calculate the height (in pixels) of the tab region of a ribbon bar.

Note that as the tab region can contain scroll buttons, the height should be greater than or equal to the minimum height for a tab scroll button.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The window onto which the tabs will eventually be drawn.
  | pages | The tabs which will acquire the returned height.

virtual wxSize wxRibbonArtProvider::GetToolSize | ( | wxDC & | dc,
|  | wxWindow * | wnd,
|  | wxSize | bitmap_size,
|  | wxRibbonButtonKind | kind,
|  | bool | is_first,
|  | bool | is_last,
|  | wxRect * | dropdown_region |
| ) |  |  | `[pure virtual]`

Calculate the size of a tool within a wxRibbonToolBar.

Parameters:

  | dc | A device context to use when one is required for size calculations.
  | wnd | The window onto which the tool will eventually be drawn.
  | bitmap_size | The size of the tool's foreground bitmap.
  | kind | The kind of tool (normal, dropdown, or hybrid).
  | is_first | true if the tool is the first within its group. false otherwise.
  | is_last | true if the tool is the last within its group. false otherwise.
  `[out]` | dropdown_region | For dropdown and hybrid tools, the region within the returned size which counts as the dropdown part.

void wxRibbonArtProvider::SetColor | ( | int | id,
|  | const wxColour & | color |
| ) |  |  |

See also:
  wxRibbonArtProvider::SetColour()

virtual void wxRibbonArtProvider::SetColour | ( | int | id,
|  | const wxColor & | colour |
| ) |  |  | `[pure virtual]`

Set the value of a certain colour setting to the value colour.

id can be one of the colour values of wxRibbonArtSetting, though not all colour settings will have an effect on every art provider.

See also:
  SetColourScheme()

virtual void wxRibbonArtProvider::SetColourScheme | ( | const wxColour & | primary,
|  | const wxColour & | secondary,
|  | const wxColour & | tertiary |
| ) |  |  | `[pure virtual]`

Set all applicable colour settings from a few base colours.

Uses any or all of the three given colours to create a colour scheme, and then sets all colour settings which are relevant to the art provider using that scheme. Note that some art providers may not use the tertiary colour for anything, and some may not use the secondary colour either.

See also:
  SetColour()

  GetColourScheme()

virtual void wxRibbonArtProvider::SetFlags | ( | long | flags | ) | `[pure virtual]`

Set the style flags.

Normally called automatically by wxRibbonBar::SetArtProvider with the ribbon bar's style flags, so that the art provider has the same flags as the bar which it is serving.

virtual void wxRibbonArtProvider::SetFont | ( | int | id,
|  | const wxFont & | font |
| ) |  |  | `[pure virtual]`

Set the value of a certain font setting to the value font.

id can be one of the font values of wxRibbonArtSetting.

virtual void wxRibbonArtProvider::SetMetric | ( | int | id,
|  | int | new_val |
| ) |  |  | `[pure virtual]`

Set the value of a certain integer setting to the value new_val.

id can be one of the size values of wxRibbonArtSetting.

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