121 lines
4.3 KiB
C++
121 lines
4.3 KiB
C++
// *****************************************************************************
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// * This file is part of the FreeFileSync project. It is distributed under *
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// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
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// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
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// *****************************************************************************
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#include "tooltip.h"
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#include <zen/zstring.h>
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#include <wx/dialog.h>
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#include <wx/stattext.h>
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#include <wx/sizer.h>
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#include <wx/settings.h>
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#include <wx/app.h>
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#include "bitmap_button.h"
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#include "dc.h"
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#include <gtk/gtk.h>
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using namespace zen;
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namespace
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{
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const int TIP_WINDOW_OFFSET_DIP = 20;
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}
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class Tooltip::TooltipDlgGenerated : public wxDialog
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{
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public:
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TooltipDlgGenerated(wxWindow* parent) : //Suse Linux/X11: needs parent window, else there are z-order issues
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wxDialog(parent, wxID_ANY, L"" /*title*/, wxDefaultPosition, wxDefaultSize, wxSIMPLE_BORDER /*style*/)
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//wxSIMPLE_BORDER side effect: removes title bar on KDE
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{
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SetSizeHints(wxDefaultSize, wxDefaultSize);
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SetExtraStyle(this->GetExtraStyle() | wxWS_EX_TRANSIENT);
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SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_INFOBK)); //both required: on Ubuntu background is black, foreground white!
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SetForegroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_INFOTEXT)); //
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wxBoxSizer* bSizer158 = new wxBoxSizer(wxHORIZONTAL);
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bitmapLeft_ = new wxStaticBitmap(this, wxID_ANY, wxNullBitmap, wxDefaultPosition, wxDefaultSize, 0);
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bSizer158->Add(bitmapLeft_, 0, wxALL | wxALIGN_CENTER_VERTICAL, 5);
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staticTextMain_ = new wxStaticText(this, wxID_ANY, wxString(), wxDefaultPosition, wxDefaultSize, 0);
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bSizer158->Add(staticTextMain_, 0, wxALL | wxALIGN_CENTER_HORIZONTAL | wxALIGN_CENTER_VERTICAL, 5);
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SetSizer(bSizer158);
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}
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bool AcceptsFocus() const override { return false; } //any benefit?
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wxStaticText* staticTextMain_ = nullptr;
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wxStaticBitmap* bitmapLeft_ = nullptr;
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};
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void Tooltip::show(const wxString& text, wxPoint mousePos, const wxImage* img)
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{
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if (!tipWindow_)
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tipWindow_ = new TooltipDlgGenerated(&parent_); //ownership passed to parent
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const wxImage& newImg = img ? *img : wxNullImage;
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const bool imgChanged = !newImg.IsSameAs(lastUsedImg_);
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const bool txtChanged = text != lastUsedText_;
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if (imgChanged)
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{
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lastUsedImg_ = newImg;
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setImage(*tipWindow_->bitmapLeft_, newImg);
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// tipWindow_->Refresh(); //needed if bitmap size changed! ->???
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}
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if (txtChanged)
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{
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lastUsedText_ = text;
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tipWindow_->staticTextMain_->SetLabelText(text);
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tipWindow_->staticTextMain_->Wrap(dipToWxsize(600));
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}
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if (imgChanged || txtChanged)
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//tipWindow_->Dimensions(); -> apparently not needed!?
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tipWindow_->GetSizer()->SetSizeHints(tipWindow_); //~=Fit() + SetMinSize()
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#ifdef __WXGTK3__
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//GTK3 size calculation requires visible window: https://github.com/wxWidgets/wxWidgets/issues/16088
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//=> call wxWindow::Show() to "execute"
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#endif
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const wxPoint newPos = mousePos + wxPoint(wxTheApp->GetLayoutDirection() == wxLayout_RightToLeft ?
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- dipToWxsize(TIP_WINDOW_OFFSET_DIP) - tipWindow_->GetSize().GetWidth() :
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dipToWxsize(TIP_WINDOW_OFFSET_DIP),
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dipToWxsize(TIP_WINDOW_OFFSET_DIP));
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if (newPos != tipWindow_->GetScreenPosition())
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tipWindow_->Move(newPos);
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//caveat: possible endless loop! mouse pointer must NOT be within tipWindow!
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//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.
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if (!tipWindow_->IsShown())
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tipWindow_->Show();
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}
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void Tooltip::hide()
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{
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if (tipWindow_)
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{
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#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
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//=> no such issues on GTK3!
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tipWindow_->Destroy(); //apply brute force:
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tipWindow_ = nullptr; //
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lastUsedImg_ = wxNullImage;
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#elif GTK_MAJOR_VERSION == 3
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tipWindow_->Hide();
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#else
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#error unknown GTK version!
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#endif
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}
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}
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