wxWidgets/docs/latex/wx/imaglist.tex
1999-02-19 07:58:02 +00:00

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\section{\class{wxImageList}}\label{wximagelist}
A wxImageList contains a list of images, which are stored in
an unspecified form. Images can have masks for transparent
drawing, and can be made from a variety of sources including bitmaps
and icons.
wxImageList is used principally in conjunction with \helpref{wxTreeCtrl}{wxtreectrl} and
\rtfsp\helpref{wxListCtrl}{wxlistctrl} classes.
\wxheading{Derived from}
\helpref{wxObject}{wxobject}
\wxheading{Include files}
<wx/imaglist.h>
\wxheading{See also}
\helpref{wxTreeCtrl}{wxtreectrl}, \helpref{wxListCtrl}{wxlistctrl}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxImageList::wxImageList}\label{wximagelistconstr}
\func{}{wxImageList}{\void}
Default constructor.
\func{}{wxImageList}{\param{int }{width}, \param{int }{height}, \param{const bool }{mask = TRUE},\rtfsp
\param{int }{initialCount = 1}}
Constructor specifying the image size, whether image masks should be created, and the initial size of the list.
\wxheading{Parameters}
\docparam{width}{Width of the images in the list.}
\docparam{height}{Height of the images in the list.}
\docparam{mask}{TRUE if masks should be created for all images.}
\docparam{initialCount}{The initial size of the list.}
\wxheading{See also}
\helpref{wxImageList::Create}{wximagelistcreate}
\membersection{wxImageList::Add}\label{wximagelistadd}
\func{int}{Add}{\param{const wxBitmap\&}{ bitmap}, \param{const wxBitmap\&}{ mask = wxNullBitmap}}
Adds a new image using a bitmap and optional mask bitmap.
\func{int}{Add}{\param{const wxBitmap\&}{ bitmap}, \param{const wxColour\&}{ maskColour}}
Adds a new image using a bitmap and mask colour.
\func{int}{Add}{\param{const wxIcon\&}{ icon}}
Adds a new image using an icon.
\wxheading{Parameters}
\docparam{bitmap}{Bitmap representing the opaque areas of the image.}
\docparam{mask}{Monochrome mask bitmap, representing the transparent areas of the image.}
\docparam{maskColour}{Colour indicating which parts of the image are transparent.}
\docparam{icon}{Icon to use as the image.}
\wxheading{Return value}
The new zero-based image index.
\wxheading{Remarks}
The original bitmap or icon is not affected by the {\bf Add} operation, and can be deleted afterwards.
\pythonnote{In place of a single overloaded method name, wxPython
implements the following methods:\par
\indented{2cm}{\begin{twocollist}
\twocolitem{\bf{Add(bitmap, mask=wxNullBitmap)}}{}
\twocolitem{\bf{AddWithColourMask(bitmap, colour)}}{}
\twocolitem{\bf{AddIcon(icon)}}{}
\end{twocollist}}
}
\membersection{wxImageList::Create}\label{wximagelistcreate}
\func{bool}{Create}{\param{int }{width}, \param{int }{height}, \param{const bool }{mask = TRUE},\rtfsp
\param{int }{initialCount = 1}}
Initializes the list. See \helpref{wxImageList::wxImageList}{wximagelistconstr} for details.
\membersection{wxImageList::Draw}\label{wximagelistdraw}
\func{bool}{Draw}{\param{int}{ index}, \param{wxDC\&}{ dc}, \param{int }{x},\rtfsp
\param{int }{x}, \param{int }{flags = wxIMAGELIST\_DRAW\_NORMAL},\rtfsp
\param{const bool }{solidBackground = FALSE}}
Draws a specified image onto a device context.
\wxheading{Parameters}
\docparam{index}{Image index, starting from zero.}
\docparam{dc}{Device context to draw on.}
\docparam{x}{X position on the device context.}
\docparam{y}{Y position on the device context.}
\docparam{flags}{How to draw the image. A bitlist of a selection of the following:
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf wxIMAGELIST\_DRAW\_NORMAL}}{Draw the image normally.}
\twocolitem{{\bf wxIMAGELIST\_DRAW\_TRANSPARENT}}{Draw the image with transparency.}
\twocolitem{{\bf wxIMAGELIST\_DRAW\_SELECTED}}{Draw the image in selected state.}
\twocolitem{{\bf wxIMAGELIST\_DRAW\_FOCUSED}}{Draw the image in a focussed state.}
\end{twocollist}
}
\docparam{solidBackground}{For optimisation - drawing can be faster if the function is told
that the background is solid.}
\membersection{wxImageList::GetImageCount}\label{wximagelistgetimagecount}
\constfunc{int}{GetImageCount}{\void}
Returns the number of images in the list.
\membersection{wxImageList::Remove}\label{wximagelistremove}
\func{bool}{Remove}{\param{int}{ index}}
Removes the image at the given position.
\membersection{wxImageList::RemoveAll}\label{wximagelistremoveall}
\func{bool}{RemoveAll}{\void}
Removes all the images in the list.
\membersection{wxImageList::Replace}\label{wximagelistreplace}
\func{bool}{Replace}{\param{int}{ index}, \param{const wxBitmap\&}{ bitmap}, \param{const wxBitmap\&}{ mask = wxNullBitmap}}
Replaces the existing image with the new image.
\func{bool}{Replace}{\param{int}{ index}, \param{const wxIcon\&}{ icon}}
Replaces the existing image with the new image.
\wxheading{Parameters}
\docparam{bitmap}{Bitmap representing the opaque areas of the image.}
\docparam{mask}{Monochrome mask bitmap, representing the transparent areas of the image.}
\docparam{icon}{Icon to use as the image.}
\wxheading{Return value}
TRUE if the replacement was successful, FALSE otherwise.
\wxheading{Remarks}
The original bitmap or icon is not affected by the {\bf Replace} operation, and can be deleted afterwards.
\pythonnote{The second form is called \tt{ReplaceIcon} in wxPython.}