X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f4fcc2919776cffa5e3b2f0d44dd24c41e652ff4..1be9182df86e9a902fe9ab6edef960fdc449fed6:/docs/latex/wx/artprov.tex

diff --git a/docs/latex/wx/artprov.tex b/docs/latex/wx/artprov.tex
index e3dc351157..cb6692cac9 100644
--- a/docs/latex/wx/artprov.tex
+++ b/docs/latex/wx/artprov.tex
@@ -5,7 +5,145 @@
 
 \section{\class{wxArtProvider}}\label{wxartprovider}
 
-wxArtProvider class.
+wxArtProvider class is used to customize the look of wxWidgets application.
+When wxWidgets needs to display an icon or a bitmap (e.g. in the standard file
+dialog), it does not use a hard-coded resource but asks wxArtProvider for it
+instead. This way users can plug in their own wxArtProvider class and easily
+replace standard art with their own version. All
+that is needed is to derive a class from wxArtProvider, override either its
+\helpref{CreateBitmap}{wxartprovidercreatebitmap} and/or its
+\helpref{CreateIconBundle}{wxartprovidercreateiconbundle} methods
+and register the provider with
+\helpref{wxArtProvider::Push}{wxartproviderpush}:
+
+\begin{verbatim}
+  class MyProvider : public wxArtProvider
+  {
+  protected:
+    wxBitmap CreateBitmap(const wxArtID& id, 
+                          const wxArtClient& client,
+                          const wxSize size)
+
+    // optionally override this one as well
+    wxIconBundle CreateIconBundle(const wxArtID& id,
+                                  const wxArtClient& client)
+    { ... }
+  };
+  ...
+  wxArtProvider::Push(new MyProvider);
+\end{verbatim}
+
+If you need bitmap images (of the same artwork) that should be displayed at different sizes
+you should probably consider overriding \helpref{CreateIconBundle()}{wxartprovidercreateiconbundle} 
+and supplying icon bundles that contain different bitmap sizes.
+
+There's another way of taking advantage of this class: you can use it in your code and use
+platform native icons as provided by \helpref{wxArtProvider::GetBitmap}{wxartprovidergetbitmap} or 
+\helpref{wxArtProvider::GetIcon}{wxartprovidergeticon} (NB: this is not yet really
+possible as of wxWidgets 2.3.3, the set of wxArtProvider bitmaps is too
+small). 
+
+
+\membersection{Identifying art resources}\label{artprovideridentifying}
+
+Every bitmap and icon bundle are known to wxArtProvider under an unique ID that is used when
+requesting a resource from it. The ID is represented by wxArtID type and can
+have one of these predefined values (you can see bitmaps represented by these
+constants in the \helpref{artprov}{sampleartprovider} sample):
+\begin{itemize}\itemsep=0pt
+
+\item wxART\_ERROR
+\item wxART\_QUESTION
+\item wxART\_WARNING
+\item wxART\_INFORMATION
+\item wxART\_ADD\_BOOKMARK
+\item wxART\_DEL\_BOOKMARK
+\item wxART\_HELP\_SIDE\_PANEL
+\item wxART\_HELP\_SETTINGS
+\item wxART\_HELP\_BOOK
+\item wxART\_HELP\_FOLDER
+\item wxART\_HELP\_PAGE
+\item wxART\_GO\_BACK
+\item wxART\_GO\_FORWARD
+\item wxART\_GO\_UP
+\item wxART\_GO\_DOWN
+\item wxART\_GO\_TO\_PARENT
+\item wxART\_GO\_HOME
+\item wxART\_PRINT
+\item wxART\_HELP
+\item wxART\_TIP
+\item wxART\_REPORT\_VIEW
+\item wxART\_LIST\_VIEW
+\item wxART\_NEW\_DIR
+\item wxART\_FOLDER
+\item wxART\_FOLDER\_OPEN
+\item wxART\_GO\_DIR\_UP
+\item wxART\_EXECUTABLE\_FILE
+\item wxART\_NORMAL\_FILE
+\item wxART\_TICK\_MARK
+\item wxART\_CROSS\_MARK
+\item wxART\_MISSING\_IMAGE
+\item wxART\_NEW
+\item wxART\_FILE\_OPEN
+\item wxART\_FILE\_SAVE
+\item wxART\_FILE\_SAVE\_AS
+\item wxART\_DELETE
+\item wxART\_COPY
+\item wxART\_CUT
+\item wxART\_PASTE
+\item wxART\_UNDO
+\item wxART\_REDO
+\item wxART\_QUIT
+\item wxART\_FIND
+\item wxART\_FIND\_AND\_REPLACE
+\item wxART\_HARDDISK
+\item wxART\_FLOPPY
+\item wxART\_CDROM
+\item wxART\_REMOVABLE
+
+\end{itemize}
+
+Additionally, any string recognized by custom art providers registered using 
+\helpref{Push}{wxartproviderpush} may be used.
+
+\wxheading{GTK+ Note}
+
+When running under GTK+ 2, GTK+ stock item IDs (e.g. {\tt "gtk-cdrom"}) may
+be used as well. Additionally, if wxGTK was compiled against GTK+ >= 2.4, then
+it is also possible to load icons from current icon theme by specifying their
+name (without extension and directory components). Icon themes recognized
+by GTK+ follow the
+\urlref{freedesktop.org Icon Themes specification}{http://freedesktop.org/Standards/icon-theme-spec}. Note that themes are not guaranteed to contain all
+icons, so wxArtProvider may return {\tt wxNullBitmap} or {\tt wxNullIcon}.
+Default theme is typically installed in {\tt /usr/share/icons/hicolor}.
+
+
+\membersection{Clients}\label{artproviderclients}
+
+Client is the entity that calls wxArtProvider's GetBitmap or GetIcon
+function. It is represented by wxClientID type and can have one of these 
+values:
+\begin{itemize}\itemsep=0pt
+\item wxART\_TOOLBAR
+\item wxART\_MENU
+\item wxART\_BUTTON
+\item wxART\_FRAME\_ICON
+\item wxART\_CMN\_DIALOG
+\item wxART\_HELP\_BROWSER
+\item wxART\_MESSAGE\_BOX
+\item wxART\_OTHER (used for all requests that don't fit into any of the categories above)
+\end{itemize}
+Client ID servers as a hint to wxArtProvider that is supposed to help it to
+choose the best looking bitmap. For example it is often desirable to use
+slightly different icons in menus and toolbars even though they represent the
+same action (e.g. {\tt wx\_ART\_FILE\_OPEN}). Remember that this is really
+only a hint for wxArtProvider -- it is common that
+\helpref{wxArtProvider::GetBitmap}{wxartprovidergetbitmap} 
+returns identical bitmap for different {\it client} values!
+
+\wxheading{See also}
+
+See the \helpref{artprov}{sampleartprovider} sample for an example of wxArtProvider usage.
 
 \wxheading{Derived from}
 
@@ -15,59 +153,151 @@ wxArtProvider class.
 
 <wx/artprov.h>
 
-\wxheading{Data structures}
+\latexignore{\rtfignore{\wxheading{Members}}}
 
-{\small \begin{verbatim}
-typedef wxString wxArtClient
-typedef wxString wxArtID
-\end{verbatim}}
 
-\latexignore{\rtfignore{\wxheading{Members}}}
+\membersection{wxArtProvider::\destruct{wxArtProvider}}\label{wxartproviderdtor}
 
-\membersection{wxArtProvider::CleanUpProviders}\label{wxartprovidercleanupproviders}
+\func{}{\destruct{wxArtProvider}}{\void}
 
-\func{void}{CleanUpProviders}{\void}
+The destructor automatically removes the provider from the provider stack used
+by \helpref{GetBitmap}{wxartprovidergetbitmap}.
 
-Destroy caches and all providers.
 
 \membersection{wxArtProvider::CreateBitmap}\label{wxartprovidercreatebitmap}
 
-\func{wxBitmap}{CreateBitmap}{\param{const wxArtID\& }{WXUNUSED(id)}, \param{const wxArtClient\& }{WXUNUSED(client)}, \param{const wxSize\& }{WXUNUSED(size)}}
+\func{wxBitmap}{CreateBitmap}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client}, \param{const wxSize\& }{size}}
+
+Derived art provider classes must override this method to create requested art
+resource. Note that returned bitmaps are cached by wxArtProvider and it is
+therefore not necessary to optimize CreateBitmap() for speed (e.g. you may
+create wxBitmap objects from XPMs here).
+
+\wxheading{Parameters}
+
+\docparam{id}{wxArtID unique identifier of the bitmap.}
+
+\docparam{client}{wxArtClient identifier of the client (i.e. who is asking for the bitmap).
+This only servers as a hint.}
+
+\docparam{size}{Preferred size of the bitmap. The function may return a bitmap of different
+dimensions, it will be automatically rescaled to meet client's request.}
+
+\wxheading{Note}
+
+This is {\bf not} part of wxArtProvider's public API, use
+\helpref{wxArtProvider::GetBitmap}{wxartprovidergetbitmap} or 
+\helpref{wxArtProvider::GetIconBundle}{wxartprovidergeticonbundle} or
+\helpref{wxArtProvider::GetIcon}{wxartprovidergeticon}
+to query wxArtProvider for a resource.
+
+\wxheading{See also}
+
+\helpref{CreateIconBundle}{wxartprovidercreateiconbundle}
+
+
+\membersection{wxArtProvider::CreateIconBundle}\label{wxartprovidercreateiconbundle}
+
+\func{wxIconBundle}{CreateIconBundle}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client}}
+
+This method is similar to \helpref{CreateBitmap}{wxartprovidercreatebitmap} but
+can be used when a bitmap (or an icon) exists in several sizes.
+
+
+
+\membersection{wxArtProvider::Delete}\label{wxartproviderdelete}
+
+\func{static bool}{Delete}{\param{wxArtProvider* }{provider}}
+
+Delete the given \arg{provider}.
 
-Derived classes must override this method to create requested 
-art resource. This method is called only once per instance's
-lifetime for each requested wxArtID.
 
 \membersection{wxArtProvider::GetBitmap}\label{wxartprovidergetbitmap}
 
-\func{wxBitmap}{GetBitmap}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client = wxART\_OTHER}, \param{const wxSize\& }{size = wxDefaultSize}}
+\func{static wxBitmap}{GetBitmap}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client = wxART\_OTHER}, \param{const wxSize\& }{size = wxDefaultSize}}
+
+Query registered providers for bitmap with given ID.
+
+\wxheading{Parameters}
+
+\docparam{id}{wxArtID unique identifier of the bitmap.}
+
+\docparam{client}{wxArtClient identifier of the client (i.e. who is asking for the bitmap).}
+
+\docparam{size}{Size of the returned bitmap or {\tt wxDefaultSize} if size doesn't matter.}
+
+\wxheading{Return value}
+
+The bitmap if one of registered providers recognizes the ID or wxNullBitmap otherwise.
+
+
+\membersection{wxArtProvider::GetIconBundle}\label{wxartprovidergeticonbundle}
+
+\func{static wxIconBundle}{GetIconBundle}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client = wxART\_OTHER}}
+
+Query registered providers for icon bundle with given ID.
+
+\wxheading{Parameters}
+
+\docparam{id}{wxArtID unique identifier of the icon bundle.}
+
+\docparam{client}{wxArtClient identifier of the client (i.e. who is asking for the icon bundle).}
+
+\wxheading{Return value}
+
+The icon bundle if one of registered providers recognizes the ID or wxNullIconBundle otherwise.
 
-Query the providers for bitmap with given ID and return it. Return
-wxNullBitmap if no provider provides it.
 
 \membersection{wxArtProvider::GetIcon}\label{wxartprovidergeticon}
 
-\func{wxIcon}{GetIcon}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client = wxART\_OTHER}, \param{const wxSize\& }{size = wxDefaultSize}}
+\func{static wxIcon}{GetIcon}{\param{const wxArtID\& }{id}, \param{const wxArtClient\& }{client = wxART\_OTHER}, \param{const wxSize\& }{size = wxDefaultSize}}
+
+Same as \helpref{wxArtProvider::GetBitmap}{wxartprovidergetbitmap}, but
+return a wxIcon object (or wxNullIcon on failure).
+
+\func{static wxSize}{GetSizeHint}{\param{const wxArtClient\& }{client}, \param{bool }{platform\_default = false}}
+
+Returns a suitable size hint for the given {\it wxArtClient}. If 
+{\it platform\_default} is \true, return a size based on the current platform, 
+otherwise return the size from the topmost wxArtProvider. {\it wxDefaultSize} may be 
+returned if the client doesn't have a specified size, like wxART\_OTHER for example.
+
+
+\membersection{wxArtProvider::Insert}\label{wxartproviderinsert}
 
-Query the providers for icon with given ID and return it. Return
-wxNullIcon if no provider provides it.
+\func{static void}{Insert}{\param{wxArtProvider* }{provider}}
 
-\membersection{wxArtProvider::PopProvider}\label{wxartproviderpopprovider}
+Register new art provider and add it to the bottom of providers stack (i.e.
+it will be queried as the last one).
 
-\func{bool}{PopProvider}{\void}
+\wxheading{See also}
+
+\helpref{Push}{wxartproviderpush}
+
+
+\membersection{wxArtProvider::Pop}\label{wxartproviderctor}
+
+\func{static bool}{Pop}{\void}
 
 Remove latest added provider and delete it.
 
-\membersection{wxArtProvider::PushProvider}\label{wxartproviderpushprovider}
 
-\func{void}{PushProvider}{\param{wxArtProvider* }{provider}}
+\membersection{wxArtProvider::Push}\label{wxartproviderpush}
+
+\func{static void}{Push}{\param{wxArtProvider* }{provider}}
+
+Register new art provider and add it to the top of providers stack (i.e. it
+will be queried as the first provider).
+
+\wxheading{See also}
+
+\helpref{Insert}{wxartproviderinsert}
 
-Add new provider to the top of providers stack.
 
-\membersection{wxArtProvider::RemoveProvider}\label{wxartproviderremoveprovider}
+\membersection{wxArtProvider::Remove}\label{wxartproviderremove}
 
-\func{bool}{RemoveProvider}{\param{wxArtProvider* }{provider}}
+\func{static bool}{Remove}{\param{wxArtProvider* }{provider}}
 
-Remove provider. The provider must have been added previously.
-The provider is {\it not} deleted.
+Remove a provider from the stack if it is on it. The provider is {\emph not} 
+deleted, unlike when using \helpref{Delete()}{wxartproviderdelete}.
 
