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#include "trayIcon.h"
#include "../library/resources.h"
#include "smallDialogs.h"
#include <wx/taskbar.h>
#include <cmath>
enum Selection
{
CONTEXT_RESTORE,
CONTEXT_ABOUT
};
class MinimizeToTray::TaskBarImpl : public wxTaskBarIcon
{
public:
TaskBarImpl(MinimizeToTray* parent) : parent_(parent) {}
void parentHasDied()
{
parent_ = NULL;
}
private:
virtual wxMenu* CreatePopupMenu()
{
if (!parent_)
return NULL;
wxMenu* contextMenu = new wxMenu;
contextMenu->Append(CONTEXT_ABOUT, _("&About..."));
contextMenu->AppendSeparator();
contextMenu->Append(CONTEXT_RESTORE, _("&Restore"));
//event handling
contextMenu->Connect(wxEVT_COMMAND_MENU_SELECTED, wxCommandEventHandler(MinimizeToTray::OnContextMenuSelection), NULL, parent_);
return contextMenu; //ownership transferred to library
}
MinimizeToTray* parent_;
};
MinimizeToTray::MinimizeToTray(wxTopLevelWindow* callerWnd, wxWindow* secondWnd) :
callerWnd_(callerWnd),
secondWnd_(secondWnd),
trayIcon(new TaskBarImpl(this))
{
trayIcon->SetIcon(*GlobalResources::getInstance().programIcon, wxT("FreeFileSync"));
trayIcon->Connect(wxEVT_TASKBAR_LEFT_DCLICK, wxCommandEventHandler(MinimizeToTray::OnDoubleClick), NULL, this); //register double-click
if (callerWnd_)
callerWnd_->Hide();
if (secondWnd_)
secondWnd_->Hide();
}
MinimizeToTray::~MinimizeToTray()
{
resumeFromTray();
}
void MinimizeToTray::resumeFromTray() //remove trayIcon and restore windows: MinimizeToTray is now a zombie object...
{
if (trayIcon)
{
if (secondWnd_)
secondWnd_->Show();
if (callerWnd_) //usecase: avoid dialog flashing in batch silent mode
{
callerWnd_->Iconize(false);
callerWnd_->Show();
callerWnd_->Raise();
callerWnd_->SetFocus();
}
trayIcon->RemoveIcon(); //hide icon until final deletion takes place
trayIcon->Disconnect(wxEVT_TASKBAR_LEFT_DCLICK, wxCommandEventHandler(MinimizeToTray::OnDoubleClick), NULL, this);
//use wxWidgets delayed destruction: delete during next idle loop iteration (handle late window messages, e.g. when double-clicking)
if (!wxPendingDelete.Member(trayIcon))
wxPendingDelete.Append(trayIcon);
trayIcon->parentHasDied(); //TaskBarImpl (potentially) has longer lifetime than MinimizeToTray: avoid callback!
trayIcon = NULL; //avoid reentrance
}
}
namespace
{
inline
int roundNum(double d) //little rounding function
{
return static_cast<int>(d < 0 ? d - .5 : d + .5);
}
wxIcon generateIcon(size_t percent) //generate icon with progress indicator
{
percent = std::min(percent, static_cast<size_t>(100u)); //handle invalid input
#ifdef FFS_WIN
static const wxBitmap trayIcon = GlobalResources::getInstance().getImageByName(wxT("FFS_tray_win.png"));
#elif defined FFS_LINUX
static const wxBitmap trayIcon = GlobalResources::getInstance().getImageByName(wxT("FFS_tray_linux.png"));
#endif
const int indicatorHeight = roundNum((trayIcon.GetHeight() * percent) / 100.0);
//minor optimization
static std::pair<int, wxIcon> buffer = std::make_pair(-1, wxNullIcon);
if (buffer.first == indicatorHeight)
return buffer.second;
if ( trayIcon.GetWidth() > 0 &&
trayIcon.GetHeight() > 0)
{
static const int indicatorWidth = trayIcon.GetWidth() * .25;
const int indicatorXBegin = ceil((trayIcon.GetWidth() - indicatorWidth) / 2.0);
const int indicatorYBegin = trayIcon.GetHeight() - indicatorHeight;
wxImage genImage(trayIcon.ConvertToImage());
//draw progress indicator: do NOT use wxDC::DrawRectangle! Doesn't respect alpha in Windows, but does in Linux!
//We need a simple, working solution:
unsigned char* const data = genImage.GetData();
for (int row = indicatorYBegin; row < genImage.GetHeight(); ++row)
{
for (int col = indicatorXBegin; col < indicatorXBegin + indicatorWidth; ++col)
{
unsigned char* const pixelBegin = data + (row * genImage.GetWidth() + col) * 3;
pixelBegin[0] = 255; //red
pixelBegin[1] = 255; //green
pixelBegin[2] = 0; //blue
}
}
if (genImage.HasAlpha())
{
unsigned char* const alpha = genImage.GetAlpha();
//make progress indicator fully opaque:
for (int row = indicatorYBegin; row < genImage.GetHeight(); ++row)
::memset(alpha + row * genImage.GetWidth() + indicatorXBegin, wxIMAGE_ALPHA_OPAQUE, indicatorWidth);
}
wxIcon genIcon;
genIcon.CopyFromBitmap(wxBitmap(genImage));
//fill buffer
buffer.first = indicatorHeight;
buffer.second = genIcon;
return genIcon;
}
//fallback
wxIcon defaultIcon;
defaultIcon.CopyFromBitmap(trayIcon);
//fill buffer
buffer.first = indicatorHeight;
buffer.second = defaultIcon;
return defaultIcon;
}
}
void MinimizeToTray::setToolTip(const wxString& toolTipText, size_t percent)
{
if (trayIcon)
trayIcon->SetIcon(generateIcon(percent), toolTipText);
}
void MinimizeToTray::keepHidden()
{
callerWnd_ = NULL;
secondWnd_ = NULL;
}
void MinimizeToTray::OnContextMenuSelection(wxCommandEvent& event)
{
const Selection eventId = static_cast<Selection>(event.GetId());
switch (eventId)
{
case CONTEXT_ABOUT:
{
AboutDlg* aboutDlg = new AboutDlg(NULL);
aboutDlg->ShowModal();
aboutDlg->Destroy();
}
break;
case CONTEXT_RESTORE:
resumeFromTray();
}
}
void MinimizeToTray::OnDoubleClick(wxCommandEvent& event)
{
resumeFromTray();
}
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