c1a2d2c967
Demonstrate how dynamic information can be shown in the splash screen overlaying the static bitmap. Closes https://github.com/wxWidgets/wxWidgets/pull/958
297 lines
10 KiB
C++
297 lines
10 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: splash.cpp
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// Purpose: wxSplashScreen sample
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// Author: Wlodzimierz ABX Skiba
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// Modified by:
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// Created: 04/08/2004
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// Copyright: (c) Wlodzimierz Skiba
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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// for all others, include the necessary headers (this file is usually all you
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// need because it includes almost all "standard" wxWidgets headers)
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#ifndef WX_PRECOMP
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#include "wx/wx.h"
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#endif
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#include "wx/image.h"
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#include "wx/splash.h"
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#include "wx/mediactrl.h"
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// ----------------------------------------------------------------------------
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// resources
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// ----------------------------------------------------------------------------
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// the application icon (under Windows it is in resources and even
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// though we could still include the XPM here it would be unused)
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#ifndef wxHAS_IMAGES_IN_RESOURCES
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#include "../sample.xpm"
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#endif
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// for smartphone, pda and other small screens use resized embedded image
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// instead of full colour png dedicated to desktops
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#include "mobile.xpm"
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// ----------------------------------------------------------------------------
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// private classes
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// ----------------------------------------------------------------------------
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// Define a new application type, each program should derive a class from wxApp
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class MyApp : public wxApp
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{
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public:
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// override base class virtuals
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// ----------------------------
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// this one is called on application startup and is a good place for the app
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// initialization (doing it here and not in the ctor allows to have an error
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// return: if OnInit() returns false, the application terminates)
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virtual bool OnInit() wxOVERRIDE;
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void DecorateSplashScreen(wxBitmap& bmp);
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};
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// Define a new frame type: this is going to be our main frame
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class MyFrame : public wxFrame
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{
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public:
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// ctor(s)
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MyFrame(const wxString& title);
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// event handlers (these functions should _not_ be virtual)
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void OnQuit(wxCommandEvent& event);
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void OnAbout(wxCommandEvent& event);
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bool m_isPda;
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private:
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// any class wishing to process wxWidgets events must use this macro
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wxDECLARE_EVENT_TABLE();
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};
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// IDs for the controls and the menu commands
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enum
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{
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Minimal_Run = wxID_HIGHEST + 1
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};
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// ----------------------------------------------------------------------------
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// event tables and other macros for wxWidgets
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// ----------------------------------------------------------------------------
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// the event tables connect the wxWidgets events with the functions (event
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// handlers) which process them. It can be also done at run-time, but for the
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// simple menu events like this the static method is much simpler.
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wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
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EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
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EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
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wxEND_EVENT_TABLE()
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// Create a new application object: this macro will allow wxWidgets to create
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// the application object during program execution (it's better than using a
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// static object for many reasons) and also implements the accessor function
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// wxGetApp() which will return the reference of the right type (i.e. MyApp and
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// not wxApp)
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wxIMPLEMENT_APP(MyApp);
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// ============================================================================
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// implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// the application class
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// ----------------------------------------------------------------------------
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// 'Main program' equivalent: the program execution "starts" here
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bool MyApp::OnInit()
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{
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if ( !wxApp::OnInit() )
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return false;
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wxImage::AddHandler(new wxPNGHandler);
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// create the main application window
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MyFrame *frame = new MyFrame("wxSplashScreen sample application");
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wxBitmap bitmap;
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if (frame->m_isPda)
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bitmap = wxBitmap(mobile_xpm);
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bool ok = frame->m_isPda
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? bitmap.IsOk()
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: bitmap.LoadFile("splash.png", wxBITMAP_TYPE_PNG);
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if (ok)
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{
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// we can even draw dynamic artwork onto our splashscreen
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DecorateSplashScreen(bitmap);
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// show the splashscreen
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new wxSplashScreen(bitmap,
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wxSPLASH_CENTRE_ON_SCREEN|wxSPLASH_TIMEOUT,
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6000, frame, wxID_ANY, wxDefaultPosition, wxDefaultSize,
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wxSIMPLE_BORDER|wxSTAY_ON_TOP);
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}
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#if !defined(__WXGTK20__)
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// we don't need it at least on wxGTK with GTK+ 2.12.9
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wxYield();
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#endif
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// and show it (the frames, unlike simple controls, are not shown when
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// created initially)
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frame->Show(true);
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// success: wxApp::OnRun() will be called which will enter the main message
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// loop and the application will run. If we returned false here, the
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// application would exit immediately.
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return true;
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}
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// Draws artwork onto our splashscreen at runtime
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void MyApp::DecorateSplashScreen(wxBitmap& bmp)
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{
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// use a memory DC to draw directly onto the bitmap
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wxMemoryDC memDc(bmp);
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// draw an orange box (with black outline) at the bottom of the splashscreen.
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// this box will be 10% of the height of the bitmap, and be at the bottom.
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const wxRect bannerRect(wxPoint(0, (bmp.GetHeight() / 10)*9),
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wxPoint(bmp.GetWidth(), bmp.GetHeight()));
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wxDCBrushChanger bc(memDc, wxBrush(wxColour(255, 102, 0)));
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memDc.DrawRectangle(bannerRect);
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memDc.DrawLine(bannerRect.GetTopLeft(), bannerRect.GetTopRight());
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// dynamically get the wxWidgets version to display
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wxString description = wxString::Format("wxWidgets %s", wxVERSION_NUM_DOT_STRING);
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// create a copyright notice that uses the year that this file was compiled
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wxString year(__DATE__);
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wxString copyrightLabel = wxString::Format("%s%s wxWidgets. %s",
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wxString::FromUTF8("\xc2\xa9"), year.Mid(year.Length() - 4),
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"All rights reserved.");
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// draw the (white) labels inside of our orange box (at the bottom of the splashscreen)
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memDc.SetTextForeground(*wxWHITE);
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// draw the "wxWidget" label on the left side, vertically centered.
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// note that we deflate the banner rect a little bit horizontally
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// so that the text has some padding to its left.
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memDc.DrawLabel(description, bannerRect.Deflate(5, 0), wxALIGN_CENTRE_VERTICAL|wxALIGN_LEFT);
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// draw the copyright label on the right side
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memDc.SetFont(wxFontInfo(8));
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memDc.DrawLabel(copyrightLabel, bannerRect.Deflate(5, 0), wxALIGN_CENTRE_VERTICAL | wxALIGN_RIGHT);
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}
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// ----------------------------------------------------------------------------
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// main frame
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// ----------------------------------------------------------------------------
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// frame constructor
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MyFrame::MyFrame(const wxString& title)
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: wxFrame(NULL, wxID_ANY, title)
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{
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m_isPda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
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// set the frame icon
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SetIcon(wxICON(sample));
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#if wxUSE_MENUS
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// create a menu bar
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wxMenu *menuFile = new wxMenu;
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// the "About" item should be in the help menu
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wxMenu *helpMenu = new wxMenu;
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helpMenu->Append(wxID_ABOUT, "&About\tF1", "Show about frame");
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menuFile->Append(wxID_EXIT, "E&xit\tAlt-X", "Quit this program");
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// now append the freshly created menu to the menu bar...
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wxMenuBar *menuBar = new wxMenuBar();
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menuBar->Append(menuFile, "&File");
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menuBar->Append(helpMenu, "&Help");
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// ... and attach this menu bar to the frame
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SetMenuBar(menuBar);
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#endif // wxUSE_MENUS
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#if wxUSE_STATUSBAR
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// create a status bar just for fun (by default with 1 pane only)
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CreateStatusBar(2);
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SetStatusText("Welcome to wxWidgets!");
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#endif // wxUSE_STATUSBAR
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}
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// event handlers
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void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
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{
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// true is to force the frame to close
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Close(true);
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}
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void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
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{
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wxBitmap bitmap;
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if (m_isPda) bitmap = wxBitmap(mobile_xpm);
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bool ok = m_isPda
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? bitmap.IsOk()
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: bitmap.LoadFile("splash.png", wxBITMAP_TYPE_PNG);
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if (ok)
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{
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wxImage image = bitmap.ConvertToImage();
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// do not scale on already small screens
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if (!m_isPda)
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image.Rescale( bitmap.GetWidth()/2, bitmap.GetHeight()/2 );
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bitmap = wxBitmap(image);
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wxSplashScreen *splash = new wxSplashScreen(bitmap,
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wxSPLASH_CENTRE_ON_PARENT | wxSPLASH_NO_TIMEOUT,
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0, this, wxID_ANY, wxDefaultPosition, wxDefaultSize,
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wxSIMPLE_BORDER|wxSTAY_ON_TOP);
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wxWindow *win = splash->GetSplashWindow();
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#if wxUSE_MEDIACTRL
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wxMediaCtrl *media = new wxMediaCtrl( win, wxID_EXIT, "press.mpg", wxPoint(2,2));
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media->Play();
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#else
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wxStaticText *text = new wxStaticText( win,
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wxID_EXIT,
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"click somewhere\non this image",
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wxPoint(m_isPda ? 0 : 13,
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m_isPda ? 0 : 11)
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);
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text->SetBackgroundColour(*wxWHITE);
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text->SetForegroundColour(*wxBLACK);
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wxFont font = text->GetFont();
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font.SetFractionalPointSize(2.0*font.GetFractionalPointSize()/3.0);
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text->SetFont(font);
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#endif
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}
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}
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