File: statbar.cpp

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// This file is part of fityk program. Copyright 2001-2013 Marcin Wojdyr
// Licence: GNU General Public License ver. 2+

///  Status Bar (FStatusBar) and dialog for its configuration (ConfStatBarDlg)

#include <wx/wx.h>
#include <wx/spinctrl.h>
#include <wx/statline.h>
#include <wx/tooltip.h>

#include "statbar.h"
#include "cmn.h" //wx2s, s2wx, GET_BMP
#include "fityk/common.h" //vector2
#include "fityk/lexer.h" //Lexer

// icons
#include "img/mouse16.h"
#include "img/sbprefs.h"
#include "img/ok24.h"

using namespace std;

//===============================================================
//                    FStatusBar
//===============================================================

FStatusBar::FStatusBar(wxWindow *parent)
        : wxPanel(parent, -1), extra_parser(NULL), last_x(0), last_y(0)
{
    wxBoxSizer *sizer = new wxBoxSizer(wxHORIZONTAL);
    split = new wxSplitterWindow(this, -1, wxDefaultPosition, wxDefaultSize, 0);
    wxPanel *panel_text = new wxPanel(split, -1);
    wxPanel *panel_coords = new wxPanel(split, -1);
    text = new wxStaticText(panel_text, -1, wxT(""));

    coords = new wxStaticText(panel_coords, -1, wxT(""),
                              wxDefaultPosition, wxSize(200, -1));
    wxFont font = coords->GetFont();
    font.SetFamily(wxFONTFAMILY_TELETYPE);
    coords->SetFont(font);

    // using sizer here should not be necessary, but on wxGTK 2.8 `coords'
    // sometimes disappears, and these 3 lines are a workaround
    wxBoxSizer *coords_sizer = new wxBoxSizer(wxHORIZONTAL);
    coords_sizer->Add(coords, 1);
    panel_coords->SetSizerAndFit(coords_sizer);

    split->SplitVertically(panel_text, panel_coords);
    split->SetSashGravity(1.0);
    split->SetMinimumPaneSize(150);
    sizer->Add(split, wxSizerFlags(1).Centre().Border(wxLEFT));

    prefbtn = new wxBitmapButton
#ifdef __WXMSW__
        // on wxMSW the default width is too small
        (this, -1, GET_BMP(sbprefs), wxDefaultPosition, wxSize(22, 16));
#else
        (this, -1, GET_BMP(sbprefs));
#endif
    prefbtn->SetToolTip(wxT("configure status bar"));
    sizer->Add(prefbtn, wxSizerFlags().Expand().Centre());

    // wxALIGN_RIGHT flag for wxStaticText doesn't work on wxGTK 2.9
    // (wx bug #10716), so we must align the text in a different way
    wxString long_hint = wxT("add-in-range");
    lmouse_hint = new wxStaticText(this, -1, long_hint);
    rmouse_hint = new wxStaticText(this, -1, long_hint,
                                   wxDefaultPosition, wxDefaultSize,
#ifdef __WXMAC__
                                   // wxST_NO_AUTORESIZE breaks the layout
                                   // on wxCarbon 2.9.2 (I haven't investigate
                                   // it further)
                                   0
#else
                                   wxST_NO_AUTORESIZE
#endif
                                   );
    mousebmp = new wxStaticBitmap(this, -1, GET_BMP(mouse16));
    wxBoxSizer *lmouse_sizer = new wxBoxSizer(wxHORIZONTAL);
    lmouse_sizer->AddStretchSpacer();
    lmouse_sizer->Add(lmouse_hint, wxSizerFlags().Right());
    lmouse_sizer->SetMinSize(rmouse_hint->GetClientSize());
    wxBoxSizer *hint_sizer = new wxBoxSizer(wxVERTICAL);
    wxBoxSizer *vhint_sizer = new wxBoxSizer(wxHORIZONTAL);
    vhint_sizer->Add(lmouse_sizer, wxSizerFlags(1).Expand().FixedMinSize());
    vhint_sizer->Add(mousebmp, wxSizerFlags().Centre().Border(wxRIGHT, 3));
    vhint_sizer->Add(rmouse_hint, wxSizerFlags().Centre().FixedMinSize());
    hint_sizer->Add(new wxStaticLine(this), wxSizerFlags().Expand());
    hint_sizer->Add(vhint_sizer, wxSizerFlags(1).Expand().FixedMinSize());
    sizer->Add(hint_sizer, wxSizerFlags().Expand());

    sizer->AddSpacer(16);
    SetSizer(sizer);
    Connect(prefbtn->GetId(), wxEVT_COMMAND_BUTTON_CLICKED,
            (wxObjectEventFunction) &FStatusBar::OnPrefButton);
    mousebmp->Connect(wxEVT_LEFT_DOWN,
                      (wxObjectEventFunction) &FStatusBar::OnMouseBmpClicked,
                      NULL, this);
    mousebmp->Connect(wxEVT_RIGHT_DOWN,
                      (wxObjectEventFunction) &FStatusBar::OnMouseBmpClicked,
                      NULL, this);
}

void FStatusBar::save_settings(wxConfigBase *cf) const
{
    cf->SetPath(wxT("/StatusBar"));
    int coord_width = split->GetClientSize().x - split->GetSashPosition();
    cf->Write(wxT("coord_width"), coord_width);
    cf->Write(wxT("show_btn"), show_btn);
    cf->Write(wxT("show_hints"), show_hints);
    cf->Write(wxT("e_prec"), e_prec);
    cf->Write(wxT("extraValue"), extra_value);
}

void FStatusBar::read_settings(wxConfigBase *cf)
{
    cf->SetPath(wxT("/StatusBar"));
    int coord_width = cf->Read(wxT("coord_width"), 200);
    show_btn = cfg_read_bool(cf, wxT("show_btn"), true);
    show_hints = cfg_read_bool(cf, wxT("show_hints"), true);
    e_prec = cf->Read(wxT("e_prec"), 3);
    wxString ev = cf->Read(wxT("extraValue"), wxT(""));

    set_extra_value(ev);
    update_extra_fmt();
    split->SetSashPosition(split->GetClientSize().x - coord_width);
    show_or_hide();
}

void FStatusBar::set_hints(string const& left, string const& right,
                           string const& mode_name,
                           string const& shift_left, string const& shift_right)
{
    lmouse_hint->SetLabel(s2wx(left));
    rmouse_hint->SetLabel(s2wx(right));
    string tip = "In this mode (" + mode_name + "), on main plot:"
                 "\n  left mouse button: " + left
               + "\n  right mouse button: " + right
               + "\n  Shift + left button: " + shift_left
               + "\n  Shift + right button: " + shift_right
               + "\nIn all modes, on main plot:"
                 "\n  middle mouse button: zoom"
                 "\n  Ctrl + left button: zoom"
                 "\n  Ctrl + right button: menu"
               ;
    mousebmp->SetToolTip(s2wx(tip));
    Layout();
}

void FStatusBar::update_extra_fmt()
{
    extra_fmt = wxString::Format(wxT(" : %% -.%df"), e_prec);
}

void FStatusBar::set_coords(double x, double y, PlotTypeEnum pte)
{
    wxString fmt = (pte == pte_main ? wxT("% -8.12g % -7.12g")
                                    : wxT("% -8.12g [% -7.12g]"));
    wxString label = wxString::Format(fmt, x, y);
    if (!extra_value.IsEmpty()) {
        double val = extra_parser.calculate_custom(vector2<realt>(x, y));
        label += wxString::Format(extra_fmt, val);
    }
    coords->SetLabel(label);
    last_x = x;
    last_y = y;
    last_pte = pte;
}

bool FStatusBar::set_extra_value(wxString const& s)
{
    static const vector<string> names = vector2(string("x"), string("y"));
    if (!s.empty()) {
        string as = wx2s(s);
        fityk::Lexer lex(as.c_str());
        extra_parser.clear_vm();
        bool r = extra_parser.parse_full(lex, 0, &names);
        if (!r) {
            extra_value.clear();
            return false;
        }
    }
    extra_value = s;
    return true;
}

void FStatusBar::show_or_hide()
{
    wxSizer *sizer = GetSizer();
    sizer->Show(1, show_btn);
    sizer->Show(2, show_hints);
    sizer->Layout();
}

void FStatusBar::OnPrefButton(wxCommandEvent&)
{
    show_last_coordinates();
    ConfStatBarDlg dlg(NULL, -1, this);
    dlg.ShowModal();
}

void FStatusBar::OnMouseBmpClicked(wxMouseEvent&)
{
    wxToolTip *tip = mousebmp->GetToolTip();
    if (tip == NULL)
        return;
    wxMessageBox(tip->GetTip(), wxT("Mouse usage"));
}


//===============================================================
//                     ConfStatBarDlg
//===============================================================

ConfStatBarDlg::ConfStatBarDlg(wxWindow* parent, wxWindowID id, FStatusBar* sb_)
    //explicit conversion of title to wxString() is neccessary
  : wxDialog(parent, id, wxString(wxT("Configure Status Bar")),
             wxDefaultPosition, wxDefaultSize,
             wxDEFAULT_DIALOG_STYLE|wxRESIZE_BORDER),
    sb(sb_)
{
    wxBoxSizer *top_sizer = new wxBoxSizer(wxVERTICAL);

    show_btn_cb = new wxCheckBox(this, -1, wxT("show settings button"));
    show_btn_cb->SetValue(sb->show_btn);
    top_sizer->Add(show_btn_cb, wxSizerFlags().Border());

    show_hints_cb = new wxCheckBox(this, -1, wxT("show mouse hints"));
    show_hints_cb->SetValue(sb->show_hints);
    top_sizer->Add(show_hints_cb, wxSizerFlags().Border());

    wxStaticBoxSizer *f_sizer = new wxStaticBoxSizer(wxVERTICAL, this,
                                                     wxT("extra value"));

    wxStaticText *evcomment = new wxStaticText(this, -1,
  wxT("In addition to the x and y, extra numeric value (a function")
  wxT("\nof x and/or y) can be shown on the status bar, e.g.:")
  wxT("\n4*pi*sin(x/2*pi/180)/1.5405"));
    evcomment->SetFont(*wxITALIC_FONT);
    f_sizer->Add(evcomment, wxSizerFlags().Border());

    wxFlexGridSizer *gsizer = new wxFlexGridSizer(3, 5, 5);
    gsizer->AddGrowableCol(1);

    gsizer->Add(new wxStaticText(this, -1, wxT("formula")),
                wxSizerFlags().Align(wxALIGN_CENTRE_VERTICAL|wxALIGN_RIGHT));
    extra_tc = new wxTextCtrl(this, -1, sb->extra_value);
    gsizer->Add(extra_tc, wxSizerFlags().Expand().Center());
    okbmp = new wxStaticBitmap(this, -1, GET_BMP(ok24));
    gsizer->Add(okbmp, wxSizerFlags().Center()
#if wxCHECK_VERSION(2, 8, 8)
            .ReserveSpaceEvenIfHidden()
#endif
                );

    gsizer->Add(new wxStaticText(this, -1,wxT("precision")),
                wxSizerFlags().Align(wxALIGN_CENTRE_VERTICAL|wxALIGN_RIGHT));
    e_prec_sc = new SpinCtrl(this, -1, sb->e_prec, 0, 9, 40);
    gsizer->Add(e_prec_sc, wxSizerFlags().Align(wxALIGN_CENTRE_VERTICAL));

    f_sizer->Add(gsizer, wxSizerFlags(1).Expand().Border());
    top_sizer->Add(f_sizer, wxSizerFlags(1).Expand().Border());

    top_sizer->Add(persistance_note(this), wxSizerFlags().Border());

    top_sizer->Add(new wxButton(this, wxID_CLOSE),
                   wxSizerFlags().Right().Border());
    SetSizerAndFit(top_sizer);

    SetEscapeId(wxID_CLOSE);

    //okbmp->Show(!sb->extra_value.empty());

    Connect(show_btn_cb->GetId(), wxEVT_COMMAND_CHECKBOX_CLICKED,
            (wxObjectEventFunction) &ConfStatBarDlg::OnShowBtnCheckbox);
    Connect(show_hints_cb->GetId(), wxEVT_COMMAND_CHECKBOX_CLICKED,
            (wxObjectEventFunction) &ConfStatBarDlg::OnShowHintsCheckbox);
    Connect(extra_tc->GetId(), wxEVT_COMMAND_TEXT_UPDATED,
            (wxObjectEventFunction) &ConfStatBarDlg::OnExtraValueChange);
    Connect(e_prec_sc->GetId(), wxEVT_COMMAND_SPINCTRL_UPDATED,
            (wxObjectEventFunction) &ConfStatBarDlg::OnPrecisionSpin);
}

void ConfStatBarDlg::OnShowBtnCheckbox(wxCommandEvent& event)
{
    sb->show_btn = event.IsChecked();
    sb->show_or_hide();
}

void ConfStatBarDlg::OnShowHintsCheckbox(wxCommandEvent& event)
{
    sb->show_hints = event.IsChecked();
    sb->show_or_hide();
}

void ConfStatBarDlg::OnPrecisionSpin(wxCommandEvent&)
{
    //if (event.GetId() == e_prec_sc->GetId())
    sb->e_prec = e_prec_sc->GetValue();
    sb->update_extra_fmt();
    sb->show_last_coordinates();
}

void ConfStatBarDlg::OnExtraValueChange(wxCommandEvent&)
{
    bool ok = sb->set_extra_value(extra_tc->GetValue());
    okbmp->Show(ok);
#if !wxCHECK_VERSION(2, 8, 8)
    GetSizer()->Layout();
#endif
    sb->show_last_coordinates();
}