1999-11-02 22:47:19 +00:00
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
|
%% Name: tsamples.tex
|
|
|
|
%% Purpose: Samples description
|
|
|
|
%% Author: Vadim Zeitlin
|
|
|
|
%% Modified by:
|
|
|
|
%% Created: 02.11.99
|
|
|
|
%% RCS-ID: $Id$
|
|
|
|
%% Copyright: (c) wxWindows team
|
|
|
|
%% Licence: wxWindows licence
|
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
|
|
|
|
|
|
\section{wxWindows samples}\label{samples}
|
|
|
|
|
|
|
|
Probably the best way to learn wxWindows is by reading the source of some 50+
|
|
|
|
samples provided with it. Many aspects of wxWindows programming can be learnt
|
|
|
|
from them, but sometimes it is not simple to just choose the right sample to
|
|
|
|
look at. This overview aims at describing what each sample does/demonstrates to
|
|
|
|
make it easier to find the relevant one if a simple grep through all sources
|
|
|
|
didn't help. They also provide some notes about using the samples and what
|
|
|
|
features of wxWindows are they supposed to test.
|
|
|
|
|
1999-11-03 23:51:07 +00:00
|
|
|
\subsection{Font sample}\label{samplefont}
|
|
|
|
|
|
|
|
The font sample demonstrates \helpref{wxFont}{wxfont},
|
|
|
|
\helpref{wxFontEnumerator}{wxfontenumerator} and
|
|
|
|
\helpref{wxFontMapper}{wxfontmapper} classes. It allows you to see the fonts
|
|
|
|
available (to wxWindows) on the computer and shows all characters of the
|
|
|
|
chosen font as well.
|
|
|
|
|
1999-11-03 00:29:20 +00:00
|
|
|
\subsection{DnD sample}\label{samplednd}
|
1999-11-02 22:47:19 +00:00
|
|
|
|
|
|
|
This sample shows both clipboard and drag and drop in action. It is quite non
|
|
|
|
trivial and may be safely used as a basis for implementing the clipboard and
|
|
|
|
drag and drop operations in a real-life program.
|
|
|
|
|
|
|
|
When you run the sample, its screen is split in several parts. On the top,
|
|
|
|
there are two listboxes which show the standard derivations of
|
|
|
|
\helpref{wxDropTarget}{wxdroptarget}:
|
|
|
|
\helpref{wxTextDropTarget}{wxtextdroptarget} and
|
|
|
|
\helpref{wxFileDropTarget}{wxfiledroptarget}.
|
|
|
|
|
|
|
|
The middle of the sample window is taken by the log window which shows what is
|
|
|
|
going on (of course, this only works in debug builds) and may be helpful to see
|
|
|
|
the sequence of steps of data transfer.
|
|
|
|
|
|
|
|
Finally, the last part is used for two things: you can drag text from it to
|
|
|
|
either one of the listboxes (only one will accept it) or another application
|
|
|
|
and, also, bitmap pasted from clipboard will be shown there.
|
|
|
|
|
|
|
|
So far, everything we mentioned was implemented with minimal amount of code
|
|
|
|
using standard wxWindows classes. The more advanced features are demonstrated
|
|
|
|
if you create a shape frame from the main frame menu. A shape is a geometric
|
|
|
|
object which has a position, size and color. It models some
|
|
|
|
application-specific data in this sample. A shape object supports its own
|
|
|
|
private \helpref{wxDataFormat}{wxdataformat} which means that you may cut and
|
|
|
|
paste it or drag and drop (between one and the same or different shapes) from
|
|
|
|
one sample instance to another (or the same). However, chances are that no
|
|
|
|
other program supports this format and so shapes can also be rendered as
|
|
|
|
bitmaps which allows them to be pasted/dropped in many other applications.
|
|
|
|
|
|
|
|
Take a look at DnDShapeDataObject class to see how you may use
|
|
|
|
\helpref{wxDataObject}{wxdataobject} to achieve this.
|
1999-11-04 20:43:52 +00:00
|
|
|
|