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// *****************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
// *****************************************************************************
#include "tooltip.h"
#include <wx/dialog.h>
#include <wx/stattext.h>
#include <wx/sizer.h>
#include <wx/statbmp.h>
#include <wx/settings.h>
#include <wx/app.h>
#include "image_tools.h"
#include "bitmap_button.h"
#include "dc.h"
#include <gtk/gtk.h>
using namespace zen;
namespace
{
const int TIP_WINDOW_OFFSET_DIP = 30;
}
class Tooltip::TooltipDlgGenerated : public wxDialog
{
public:
TooltipDlgGenerated(wxWindow* parent) : //Suse Linux/X11: needs parent window, else there are z-order issues
wxDialog(parent, wxID_ANY, L"" /*title*/, wxDefaultPosition, wxDefaultSize, wxSIMPLE_BORDER /*style*/)
//wxSIMPLE_BORDER side effect: removes title bar on KDE
{
SetSizeHints(wxDefaultSize, wxDefaultSize);
SetExtraStyle(this->GetExtraStyle() | wxWS_EX_TRANSIENT);
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_INFOBK)); //both required: on Ubuntu background is black, foreground white!
SetForegroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_INFOTEXT)); //
wxBoxSizer* bSizer158 = new wxBoxSizer(wxHORIZONTAL);
bitmapLeft_ = new wxStaticBitmap(this, wxID_ANY, wxNullBitmap, wxDefaultPosition, wxDefaultSize, 0);
bSizer158->Add(bitmapLeft_, 0, wxALL | wxALIGN_CENTER_VERTICAL, 5);
staticTextMain_ = new wxStaticText(this, wxID_ANY, wxString(), wxDefaultPosition, wxDefaultSize, 0);
bSizer158->Add(staticTextMain_, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
SetSizer(bSizer158);
}
bool AcceptsFocus() const override { return false; } //any benefit?
wxStaticText* staticTextMain_ = nullptr;
wxStaticBitmap* bitmapLeft_ = nullptr;
};
void Tooltip::show(const wxString& text, wxPoint mousePos, const wxImage* img)
{
if (!tipWindow_)
tipWindow_ = new TooltipDlgGenerated(&parent_); //ownership passed to parent
const wxImage& newImg = img ? *img : wxNullImage;
const bool imgChanged = !newImg.IsSameAs(lastUsedImg_);
const bool txtChanged = text != tipWindow_->staticTextMain_->GetLabelText();
if (imgChanged)
{
lastUsedImg_ = newImg;
setImage(*tipWindow_->bitmapLeft_, newImg);
// tipWindow_->Refresh(); //needed if bitmap size changed! ->???
}
if (txtChanged)
{
tipWindow_->staticTextMain_->SetLabelText(text);
tipWindow_->staticTextMain_->Wrap(fastFromDIP(600));
}
if (imgChanged || txtChanged)
//tipWindow_->Dimensions(); -> apparently not needed!?
tipWindow_->GetSizer()->SetSizeHints(tipWindow_); //~=Fit() + SetMinSize()
#ifdef __WXGTK3__
//GTK3 size calculation requires visible window: https://github.com/wxWidgets/wxWidgets/issues/16088
//=> call wxWindow::Show() to "execute"
#endif
const wxPoint newPos = wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft ?
mousePos - wxPoint(fastFromDIP(TIP_WINDOW_OFFSET_DIP) + tipWindow_->GetSize().GetWidth(), 0) :
mousePos + wxPoint(fastFromDIP(TIP_WINDOW_OFFSET_DIP), 0);
if (newPos != tipWindow_->GetScreenPosition())
tipWindow_->Move(newPos);
//attention!!! possible endless loop: mouse pointer must NOT be within tipWindow!
//else it will trigger a wxEVT_LEAVE_WINDOW on middle grid which will hide the window, causing the window to be shown again via this method, etc.
if (!tipWindow_->IsShown())
tipWindow_->Show();
}
void Tooltip::hide()
{
if (tipWindow_)
{
#if GTK_MAJOR_VERSION == 2 //the tooltip sometimes turns blank or is not shown again after it was hidden: e.g. drag-selection on middle grid
//=> no such issues on GTK3!
tipWindow_->Destroy(); //apply brute force:
tipWindow_ = nullptr; //
lastUsedImg_ = wxNullImage;
#elif GTK_MAJOR_VERSION == 3
tipWindow_->Hide();
#else
#error unknown GTK version!
#endif
}
}
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