wxWidgets/samples/xrc/xrcdemo.cpp
ousnius 2a2fa8c5af Allow expanding environment variables in XRC file paths
Add a new flag wxXRC_USE_ENVVARS for wxXmlResourceFlags that triggers a
call to wxExpandEnvVars() for bitmap, icon and animation paths.

This flag is not set by default to avoid silently changing the behaviour
of existing applications.

Closes https://github.com/wxWidgets/wxWidgets/pull/1445
2019-07-31 23:57:40 +02:00

129 lines
4.7 KiB
C++

//-----------------------------------------------------------------------------
// Name: xrcdemo.cpp
// Purpose: XML resources sample: Main application file
// Author: Robert O'Connor (rob@medicalmnemonics.com), Vaclav Slavik
// Copyright: (c) Robert O'Connor and Vaclav Slavik
// Licence: wxWindows licence
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Standard wxWidgets 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" wxWidgets 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 app one
//-----------------------------------------------------------------------------
#include "wx/image.h" // wxImage
#include "wx/xrc/xmlres.h" // XRC XML resources
#if wxUSE_RIBBON
#include "wx/xrc/xh_ribbon.h"
#endif // wxUSE_RIBBON
#if wxUSE_AUI
#include "wx/xrc/xh_aui.h"
#include "wx/xrc/xh_auitoolb.h"
#endif // wxUSE_AUI
#include "wx/cshelp.h" // wxSimpleHelpProvider for helptext
#include "myframe.h"
//-----------------------------------------------------------------------------
// wxWidgets macro: Declare the application.
//-----------------------------------------------------------------------------
// Create a new application object: this macro will allow wxWidgets 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).
wxIMPLEMENT_APP(MyApp);
//-----------------------------------------------------------------------------
// Public methods
//-----------------------------------------------------------------------------
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
// 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 & a gif, but
// if you want PNGs, then add a PNG handler, etc. See wxImage::AddHandler()
// documentation for the types of image handlers available.
#if wxUSE_XPM
wxImage::AddHandler(new wxXPMHandler);
#endif
#if wxUSE_GIF
wxImage::AddHandler(new wxGIFHandler);
#endif
// 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();
// Allow using environment variables in the file paths in the resources,
// while keeping the default wxXRC_USE_LOCALE flag.
wxXmlResource::Get()->SetFlags(wxXRC_USE_LOCALE | wxXRC_USE_ENVVARS);
#if wxUSE_RIBBON
wxXmlResource::Get()->AddHandler(new wxRibbonXmlHandler);
#endif
#if wxUSE_AUI
wxXmlResource::Get()->AddHandler(new wxAuiXmlHandler);
wxXmlResource::Get()->AddHandler(new wxAuiToolBarXmlHandler);
#endif
// 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.
if ( !wxXmlResource::Get()->LoadAllFiles("rc") )
return false;
#if wxUSE_HELP
// Use the simple help provider to show the context-sensitive help
wxHelpProvider::Set( new wxSimpleHelpProvider );
#endif // wxUSE_HELP
// 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 parent
// since it is the main application window.
MyFrame *frame = new MyFrame();
// Show the frame as it's created initially hidden.
frame->Show(true);
// Return true to tell program to continue (false would terminate).
return true;
}