wxwidgets/samples/animate/anitest.cpp
Vadim Zeitlin 27e80f81b4 Add high DPI support to generic wxAnimationCtrl
Allow specifying multiple animation versions, for different resolutions,
when setting the animation to use via wxAnimationBundle class which is a
much simpler version of wxBitmapBundle used elsewhere.

This is not implemented for the native GTK version yet.

Update the sample, even though the difference in it is not really
noticeable as the "high DPI" throbber is just a scaled up version of the
existing standard DPI animation produced using gifsicle.
2023-08-25 20:51:21 +02:00

353 lines
11 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: anitest.cpp
// Purpose: Animation sample
// Author: Julian Smart
// Modified by: Francesco Montorsi
// Created: 02/07/2001
// Copyright: (c) Julian Smart
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ===========================================================================
// declarations
// ===========================================================================
// ---------------------------------------------------------------------------
// headers
// ---------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx/wx.h".
#include "wx/wxprec.h"
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
#ifndef wxHAS_IMAGES_IN_RESOURCES
#include "../sample.xpm"
#endif
#include "wx/aboutdlg.h"
#include "wx/artprov.h"
#include "wx/colordlg.h"
#include "wx/wfstream.h"
#include "anitest.h"
#if !wxUSE_ANIMATIONCTRL
#error Cannot compile this sample if wxAnimationCtrl is not enabled
#endif
#ifdef wxHAS_NATIVE_ANIMATIONCTRL
#include "wx/generic/animate.h"
#endif
wxIMPLEMENT_APP(MyApp);
// ---------------------------------------------------------------------------
// global variables
// ---------------------------------------------------------------------------
// ---------------------------------------------------------------------------
// event tables
// ---------------------------------------------------------------------------
enum
{
ID_PLAY = 1,
ID_SET_NULL_ANIMATION,
ID_SET_INACTIVE_BITMAP,
ID_SET_NO_AUTO_RESIZE,
ID_SET_BGCOLOR,
ID_USE_GENERIC
};
wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(ID_PLAY, MyFrame::OnPlay)
EVT_MENU(ID_SET_NULL_ANIMATION, MyFrame::OnSetNullAnimation)
EVT_MENU(ID_SET_INACTIVE_BITMAP, MyFrame::OnSetInactiveBitmap)
EVT_MENU(ID_SET_NO_AUTO_RESIZE, MyFrame::OnSetNoAutoResize)
EVT_MENU(ID_SET_BGCOLOR, MyFrame::OnSetBgColor)
#ifdef wxHAS_NATIVE_ANIMATIONCTRL
EVT_MENU(ID_USE_GENERIC, MyFrame::OnUseGeneric)
#endif // wxHAS_NATIVE_ANIMATIONCTRL
EVT_MENU(wxID_STOP, MyFrame::OnStop)
EVT_MENU(wxID_ABOUT, MyFrame::OnAbout)
EVT_MENU(wxID_EXIT, MyFrame::OnQuit)
#if wxUSE_FILEDLG
EVT_MENU(wxID_OPEN, MyFrame::OnOpen)
#endif // wxUSE_FILEDLG
EVT_SIZE(MyFrame::OnSize)
EVT_UPDATE_UI(wxID_ANY, MyFrame::OnUpdateUI)
wxEND_EVENT_TABLE()
// ===========================================================================
// implementation
// ===========================================================================
// ---------------------------------------------------------------------------
// MyApp
// ---------------------------------------------------------------------------
// Initialise this in OnInit, not statically
bool MyApp::OnInit()
{
if ( !wxApp::OnInit() )
return false;
// Create the main frame window
MyFrame* frame = new MyFrame(nullptr, wxID_ANY, "Animation Demo",
wxDefaultPosition, wxSize(500, 400),
wxDEFAULT_FRAME_STYLE);
frame->Show(true);
return true;
}
// ---------------------------------------------------------------------------
// MyFrame
// ---------------------------------------------------------------------------
// Define my frame constructor
MyFrame::MyFrame(wxWindow *parent,
const wxWindowID id,
const wxString& title,
const wxPoint& pos,
const wxSize& size,
const long style)
: wxFrame(parent, id, title, pos, size, style)
{
SetIcon(wxICON(sample));
// Make a menubar
wxMenu *file_menu = new wxMenu;
#if wxUSE_FILEDLG
file_menu->Append(wxID_OPEN, "&Open Animation...\tCtrl+O", "Loads an animation");
#endif // wxUSE_FILEDLG
file_menu->Append(wxID_EXIT);
wxMenu *play_menu = new wxMenu;
play_menu->Append(ID_PLAY, "Play\tCtrl+P", "Play the animation");
play_menu->Append(wxID_STOP, "Stop\tCtrl+S", "Stop the animation");
play_menu->AppendSeparator();
play_menu->Append(ID_SET_NULL_ANIMATION, "Set null animation",
"Sets the empty animation in the control");
play_menu->AppendCheckItem(ID_SET_INACTIVE_BITMAP, "Set inactive bitmap",
"Sets an inactive bitmap for the control");
play_menu->AppendCheckItem(ID_SET_NO_AUTO_RESIZE, "Set no autoresize",
"Tells the control not to resize automatically");
play_menu->Append(ID_SET_BGCOLOR, "Set background colour...",
"Sets the background colour of the control");
#ifdef wxHAS_NATIVE_ANIMATIONCTRL
play_menu->AppendSeparator();
play_menu->AppendCheckItem(ID_USE_GENERIC, "Use &generic animation\tCtrl+G",
"Selects whether native or generic version is used");
#endif // wxHAS_NATIVE_ANIMATIONCTRL
wxMenu *help_menu = new wxMenu;
help_menu->Append(wxID_ABOUT);
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, "&File");
menu_bar->Append(play_menu, "&Animation");
menu_bar->Append(help_menu, "&Help");
// Associate the menu bar with this frame
SetMenuBar(menu_bar);
#if wxUSE_STATUSBAR
CreateStatusBar();
#endif // wxUSE_STATUSBAR
// use a wxBoxSizer otherwise wxFrame will automatically
// resize the m_animationCtrl to fill its client area on
// user resizes
wxSizer *sz = new wxBoxSizer(wxVERTICAL);
sz->Add(new wxStaticText(this, wxID_ANY, "wxAnimationCtrl:"),
wxSizerFlags().Centre().Border());
m_animationCtrl = new wxAnimationCtrl(this, wxID_ANY);
wxAnimationBundle animations;
wxAnimation throbber("throbber.gif");
if (throbber.IsOk())
animations.Add(throbber);
wxAnimation throbber2x("throbber_2x.gif");
if (throbber2x.IsOk())
animations.Add(throbber2x);
if (animations.IsOk())
{
m_animationCtrl->SetAnimation(animations);
m_animationCtrl->Play();
}
sz->Add(m_animationCtrl, wxSizerFlags().Centre().Border());
SetSizer(sz);
}
MyFrame::~MyFrame()
{
}
void MyFrame::OnPlay(wxCommandEvent& WXUNUSED(event))
{
if (!m_animationCtrl->Play())
{
wxLogError("Invalid animation");
}
}
void MyFrame::OnStop(wxCommandEvent& WXUNUSED(event))
{
m_animationCtrl->Stop();
}
void MyFrame::OnSetNullAnimation(wxCommandEvent& WXUNUSED(event))
{
m_animationCtrl->SetAnimation(wxNullAnimation);
}
void MyFrame::OnSetInactiveBitmap(wxCommandEvent& event)
{
if (event.IsChecked())
{
// set a dummy bitmap as the inactive bitmap
wxBitmap bmp = wxArtProvider::GetBitmap(wxART_MISSING_IMAGE);
m_animationCtrl->SetInactiveBitmap(bmp);
}
else
m_animationCtrl->SetInactiveBitmap(wxNullBitmap);
}
void MyFrame::OnSetNoAutoResize(wxCommandEvent& event)
{
// recreate the control with the new flag if necessary
long style = wxAC_DEFAULT_STYLE |
(event.IsChecked() ? wxAC_NO_AUTORESIZE : 0);
if (style != m_animationCtrl->GetWindowStyle())
{
RecreateAnimation(style);
}
}
void MyFrame::OnSetBgColor(wxCommandEvent& WXUNUSED(event))
{
wxColour clr = wxGetColourFromUser(this, m_animationCtrl->GetBackgroundColour(),
"Choose the background colour");
if (clr.IsOk())
m_animationCtrl->SetBackgroundColour(clr);
}
void MyFrame::RecreateAnimation(long style)
{
// save status of the control before destroying it
// We can't reuse the existing animation if we're switching from native to
// generic control or vice versa (as indicated by the absence of change in
// the style, which is the only other reason we can get called). We could
// save the file name we loaded it from and recreate it, of course, but for
// now, for simplicity, just start without any animation in this case.
wxAnimation curr;
#ifdef wxHAS_NATIVE_ANIMATIONCTRL
if ( style != m_animationCtrl->GetWindowStyle() )
curr = m_animationCtrl->GetAnimation();
#endif // wxHAS_NATIVE_ANIMATIONCTRL
wxBitmap inactive = m_animationCtrl->GetInactiveBitmap();
wxColour bg = m_animationCtrl->GetBackgroundColour();
// destroy & rebuild
wxAnimationCtrlBase *old = m_animationCtrl;
#ifdef wxHAS_NATIVE_ANIMATIONCTRL
if ( GetMenuBar()->IsChecked(ID_USE_GENERIC) )
m_animationCtrl = new wxGenericAnimationCtrl(this, wxID_ANY, curr,
wxDefaultPosition,
wxDefaultSize,
style);
else
#endif // wxHAS_NATIVE_ANIMATIONCTRL
m_animationCtrl = new wxAnimationCtrl(this, wxID_ANY, curr,
wxDefaultPosition, wxDefaultSize,
style);
GetSizer()->Replace(old, m_animationCtrl);
delete old;
// load old status in new control
m_animationCtrl->SetInactiveBitmap(inactive);
m_animationCtrl->SetBackgroundColour(bg);
GetSizer()->Layout();
}
#ifdef wxHAS_NATIVE_ANIMATIONCTRL
void MyFrame::OnUseGeneric(wxCommandEvent& WXUNUSED(event))
{
RecreateAnimation(m_animationCtrl->GetWindowStyle());
}
#endif // wxHAS_NATIVE_ANIMATIONCTRL
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
Close();
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
wxAboutDialogInfo info;
info.SetName(_("wxAnimationCtrl and wxAnimation sample"));
info.SetDescription(_("This sample program demonstrates the usage of wxAnimationCtrl"));
info.SetCopyright("(C) 2006 Julian Smart");
info.AddDeveloper("Julian Smart");
info.AddDeveloper("Guillermo Rodriguez Garcia");
info.AddDeveloper("Francesco Montorsi");
wxAboutBox(info, this);
}
#if wxUSE_FILEDLG
void MyFrame::OnOpen(wxCommandEvent& WXUNUSED(event))
{
wxFileDialog dialog(this, "Please choose an animation",
wxEmptyString, wxEmptyString, "*.gif;*.ani", wxFD_OPEN);
if (dialog.ShowModal() == wxID_OK)
{
wxString filename(dialog.GetPath());
wxAnimation temp(m_animationCtrl->CreateAnimation());
if (!temp.LoadFile(filename))
{
wxLogError("Sorry, this animation is not a valid format for wxAnimation.");
return;
}
m_animationCtrl->SetAnimation(temp);
m_animationCtrl->Play();
GetSizer()->Layout();
}
}
#endif // wxUSE_FILEDLG
void MyFrame::OnUpdateUI(wxUpdateUIEvent& WXUNUSED(event) )
{
GetMenuBar()->FindItem(wxID_STOP)->Enable(m_animationCtrl->IsPlaying());
GetMenuBar()->FindItem(ID_PLAY)->Enable(!m_animationCtrl->IsPlaying());
GetMenuBar()->FindItem(ID_SET_NO_AUTO_RESIZE)->Enable(!m_animationCtrl->IsPlaying());
}