wxWidgets/samples/xrc/xrcdemo.cpp
Julian Smart af1337b041 Applied [ 594925 ] Implement wxArtProvider and XRC together
By Robert O'Connor (robertoconnor)

This patch is a draft which successfully allows a wxArtProvider to serve out icons to bitmaps for XRC files.

The syntax to use a wxArtProvider bitmap is:
<bitmap stock_id="wxART_INFORMATION" stock_client="wxART_TOOLBAR">somefallbackicon.png</bitmap>

The bitmap is optional, and will only be used as a fallback image, if the wxArtProvider returned a wxNullBitmap for some reason.

The client attribute, if not specified, currently will be wxART_OTHER. Perhaps there should be a guessing heuristic of it being in a menu node to call wxART_MENU.

Usage of XRC resouces and wxArtProvider together can be seen in an updated /contrib/samples/xrc demo, which is a separate patch.

Search the wx-dev mailing lists for "wxArtProvider" and "XRC" for the full discussions on this feature's API design.

Applied patch [ 594932 ] Extended XRC XML resources sample
By Robert O'Connor (robertoconnor)

This is a more comprehensive introduction to how to get up and running using XRC in your new wxWindows project.

It describes both the basics (for new users) and advanced features. It consists of a demo of dialogs and frames loaded from XRC. Each dialog has a textctrl at the top of the dialog, which walks the new user through that feature.

There are 8 demos:

The 4 basic ones:
-A non-derived dialog, as typically used for an about dialog.
-A derived dialog that loads its resources from an XRC (a frequently-asked question on the mailing lists), and responds to some simple events, including the disable-another-control-via-EVT_UPDATE_UI that is another FAQ, and powerful and simple-to-use feature.
-A XRC reference "Controls" dialog, using a notebook. Each tab has a single control. All XRC handled widgets can be seen at a glance, and how to use them under XRC.
-An uncentered dialog, to demonstrate the easy use of <centered>1</centered> to automatically place a Dialog centered on its parent..

The 4 advanced ones:
-Embedding a custom class into an XRC dialog, by using the "unknown" class.
-Using wxArtProvider to use stock icons from within your your XRC resources.
-Using the platform attribute to selectively show a part of XRC based on the current OS.
-Runtime variable expansion (demo only. Not implemented at this time).

Also:
-The main frame is now demonstrated as being loaded as an XRC.
- The toolbar has longhelp tag demonstrated, and are hooked up to the same events as the menu to show how XRCID() works on the same tool and menuitem XRCID.
-Some custom icons for the demonstration were created, and put into the toolbar and menubar. A custom icon also for the demonstration.
-The example code has been put in 1 class per file (both .cpp and a matching .xrc), to make it much less confusing for a newcomer to figure out what class is what, expecially with all the wx macros for declaration and implementation.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@16542 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-08-16 11:24:46 +00:00

125 lines
4.9 KiB
C++

//-----------------------------------------------------------------------------
// Name: xrcdemo.cpp
// Purpose: XML resources sample: Main application file
// Author: Robert O'Connor (rob@medicalmnemonics.com), Vaclav Slavik
// RCS-ID: $Id$
// Copyright: (c) Robert O'Connor and Vaclav Slavik
// Licence: wxWindows licence
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// GCC implementation
//-----------------------------------------------------------------------------
#ifdef __GNUG__
#pragma implementation "xrcdemo.h"
#endif
//-----------------------------------------------------------------------------
// Standard wxWindows headers
//-----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// For all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWindows headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
//-----------------------------------------------------------------------------
// Header of this .cpp file
//-----------------------------------------------------------------------------
#include "xrcdemo.h"
//-----------------------------------------------------------------------------
// Remaining headers: Needed wx headers, then wx/contrib headers, then application headers
//-----------------------------------------------------------------------------
#include "wx/image.h" // wxImage
//-----------------------------------------------------------------------------
#include "wx/xrc/xmlres.h" // XRC XML resouces
//-----------------------------------------------------------------------------
#include "myframe.h"
//-----------------------------------------------------------------------------
// wxWindows macro: Declare the application.
//-----------------------------------------------------------------------------
// Create a new application object: this macro will allow wxWindows to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also declares the accessor function
// wxGetApp() which will return the reference of the right type (i.e. the_app and
// not wxApp).
IMPLEMENT_APP(MyApp)
//-----------------------------------------------------------------------------
// Public methods
//-----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
// If there is any of a certain format of image in the xrcs, then first
// load a handler for that image type. This example uses XPMs, but if
// you want PNGs, then add a PNG handler, etc. See wxImage::AddHandler()
// documentation for the types of image handlers available.
wxImage::AddHandler(new wxXPMHandler);
// Initialize all the XRC handlers. Always required (unless you feel like
// going through and initializing a handler of each control type you will
// be using (ie initialize the spinctrl handler, initialize the textctrl
// handler). However, if you are only using a few control types, it will
// save some space to only initialize the ones you will be using. See
// wxXRC docs for details.
wxXmlResource::Get()->InitAllHandlers();
// Load all of the XRC files that will be used. You can put everything
// into one giant XRC file if you wanted, but then they become more
// diffcult to manage, and harder to reuse in later projects.
// The menubar
wxXmlResource::Get()->Load("rc/menu.xrc");
// The toolbar
wxXmlResource::Get()->Load("rc/toolbar.xrc");
// Non-derived dialog example
wxXmlResource::Get()->Load("rc/basicdlg.xrc");
// Derived dialog example
wxXmlResource::Get()->Load("rc/derivdlg.xrc");
// Controls property example
wxXmlResource::Get()->Load("rc/controls.xrc");
// Frame example
wxXmlResource::Get()->Load("rc/frame.xrc");
// Uncentered example
wxXmlResource::Get()->Load("rc/uncenter.xrc");
// Custom class example
wxXmlResource::Get()->Load("rc/custclas.xrc");
// wxArtProvider example
wxXmlResource::Get()->Load("rc/artprov.xrc");
// Platform property example
wxXmlResource::Get()->Load("rc/platform.xrc");
// Variable expansion example
wxXmlResource::Get()->Load("rc/variable.xrc");
// Make an instance of your derived frame. Passing NULL (the default value
// of MyFrame's constructor is NULL) as the frame doesn't have a frame
// since it is the first window.
MyFrame *frame = new MyFrame();
// Show the frame.
frame->Show(TRUE);
// Return TRUE to tell program to continue (FALSE would terminate).
return TRUE;
}