File: uicallgraphpanel.cpp

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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright            : (C) 2014 Eran Ifrah
// file name            : uicallgraphpanel.cpp
//
// -------------------------------------------------------------------------
// A
//              _____           _      _     _ _
//             /  __ \         | |    | |   (_) |
//             | /  \/ ___   __| | ___| |    _| |_ ___
//             | |    / _ \ / _  |/ _ \ |   | | __/ _ )
//             | \__/\ (_) | (_| |  __/ |___| | ||  __/
//              \____/\___/ \__,_|\___\_____/_|\__\___|
//
//                                                  F i l e
//
//    This program is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////

#include "callgraph.h"
#include "fileutils.h"
#include "uicallgraphpanel.h"
#include "workspace.h"
#include <wx/bitmap.h>
#include <wx/dcbuffer.h>
#include <wx/filedlg.h>
#include <wx/filefn.h>
#include <wx/xrc/xmlres.h>

uicallgraphpanel::uicallgraphpanel(wxWindow* parent, IManager* mgr, const wxString& imagepath,
                                   const wxString& projectpath, int suggestedThreshold, LineParserList* pLines)
    : uicallgraph(parent)
{
    m_mgr = mgr;
    m_pathimage = imagepath;
    m_pathproject = projectpath;
    m_scale = 1;

    m_scrolledWindow->SetBackgroundColour(wxColour(255, 255, 255));
    m_scrolledWindow->SetBackgroundStyle(wxBG_STYLE_PAINT);

    // copy lines to local storage
    m_lines.DeleteContents(true);
    for(LineParserList::iterator it = pLines->begin(); it != pLines->end(); ++it)
        m_lines.Append((*it)->Clone());

    if(m_bmpOrig.LoadFile(m_pathimage, wxBITMAP_TYPE_PNG)) UpdateImage();

    m_mgr->GetConfigTool()->ReadObject(wxT("CallGraph"), &confData);
    if(suggestedThreshold == -1) suggestedThreshold = confData.GetTresholdNode();

    CreateAndInserDataToTable(suggestedThreshold);

    m_spinNT->SetValue(suggestedThreshold);
    m_spinET->SetValue(confData.GetTresholdEdge());
    m_checkBoxHP->SetValue(confData.GetHideParams());
    m_checkBoxHN->SetValue(confData.GetHideNamespaces());
    m_grid->Update();
}

uicallgraphpanel::~uicallgraphpanel() { m_lines.Clear(); }

void uicallgraphpanel::OnPaint(wxPaintEvent& event)
{
    wxPoint ptVirt = m_scrolledWindow->CalcUnscrolledPosition(wxPoint(0, 0));
    // move from origin
    ptVirt.x -= 20;
    ptVirt.y -= 20;

    wxAutoBufferedPaintDC dc(m_scrolledWindow);
    dc.SetDeviceOrigin(-ptVirt.x, -ptVirt.y);
    dc.Clear();
    dc.DrawBitmap(m_bmpScaled, 0, 0);
}

void uicallgraphpanel::OnSaveCallGraph(wxCommandEvent& event)
{
    // wxString projectName = m_mgr->GetWorkspace()->GetActiveProjectName();

    wxFileDialog saveFileDialog(this, _("Save call graph..."), wxT(""), wxT("CallGraph"),
                                wxT("png files (*.png)|*.png"), wxFD_SAVE | wxFD_OVERWRITE_PROMPT);

    if(saveFileDialog.ShowModal() == wxID_CANCEL) return;

    m_bmpOrig.SaveFile(saveFileDialog.GetPath(), wxBITMAP_TYPE_PNG);
}

void uicallgraphpanel::OnClosePanel(wxCommandEvent& event)
{
    wxCommandEvent evt(wxEVT_COMMAND_MENU_SELECTED, XRCID("close_file"));
    m_mgr->GetTheApp()->GetTopWindow()->GetEventHandler()->AddPendingEvent(evt);
}

int uicallgraphpanel::CreateAndInserDataToTable(int node_thr)
{
    LineParserList::compatibility_iterator it = m_lines.GetFirst();
    int nr = 0;
    float max_time = -2;

    while(it) {
        LineParser* line = it->GetData();

        if(max_time < line->time) max_time = line->time;

        if(line->pline && wxRound(line->time) >= node_thr) {
            m_grid->AppendRows(1, true);
            // name   time %   self  children    called
            m_grid->SetCellValue(nr, 0, line->name);
            m_grid->SetCellValue(nr, 1, wxString::Format(wxT("%.2f"), line->time));
            m_grid->SetCellValue(nr, 2, wxString::Format(wxT("%.2f"), line->self + line->children));

            int callsum;
            if(line->called0 != -1) {
                callsum = line->called0;
                if(line->called1 != -1) callsum += line->called1;
            } else
                callsum = 1;

            m_grid->SetCellValue(nr, 3, wxString::Format(wxT("%i"), callsum));
            nr++;
        }
        it = it->GetNext();
    }

    return wxRound(max_time);
}

void uicallgraphpanel::OnRefreshClick(wxCommandEvent& event)
{
    if(m_grid->GetNumberRows()) m_grid->DeleteRows(0, (m_grid->GetNumberRows() - 1));

    // write to output png file
    DotWriter dw;
    dw.SetLineParser(&m_lines);
    dw.SetDotWriterFromDetails(confData.GetColorsNode(), confData.GetColorsEdge(), m_spinNT->GetValue(),
                               m_spinET->GetValue(), m_checkBoxHP->GetValue(), confData.GetStripParams(),
                               m_checkBoxHN->GetValue());

    dw.WriteToDotLanguage();

    wxFileName cfn(m_pathproject, DOT_FILENAME_TXT);
    cfn.AppendDir(CALLGRAPH_DIR);
    cfn.Normalize();

    wxString dot_fn = cfn.GetFullPath();

    bool ok = dw.SendToDotAppOutputDirectory(dot_fn);
    if(ok) { // delete any existing PNG
        if(wxFileExists(m_pathimage)) { clRemoveFile(m_pathimage); }

        wxString cmddot_ln;

        cmddot_ln << confData.GetDotPath() << " -Tpng -o" << m_pathimage << " " << dot_fn;

        wxExecute(cmddot_ln, wxEXEC_SYNC | wxEXEC_HIDE_CONSOLE);

        if(m_bmpOrig.LoadFile(m_pathimage, wxBITMAP_TYPE_PNG)) UpdateImage();

    } else
        wxMessageBox(_("CallGraph failed to save file with DOT language, please build the project again."),
                     wxT("CallGraph"), wxOK | wxICON_INFORMATION);

    // update call table
    CreateAndInserDataToTable(m_spinNT->GetValue());
}

void uicallgraphpanel::UpdateImage()
{
    wxBusyCursor busy;

    if(m_bmpOrig.IsOk()) {
        wxImage img = m_bmpOrig.ConvertToImage();
        if(img.IsOk()) {
            img.Rescale(m_bmpOrig.GetWidth() * m_scale, m_bmpOrig.GetHeight() * m_scale, wxIMAGE_QUALITY_HIGH);
            m_bmpScaled = wxBitmap(img);

            int x = m_bmpScaled.GetWidth() + 30;
            int y = m_bmpScaled.GetHeight() + 30;
            m_scrolledWindow->SetVirtualSize(x, y);
            m_scrolledWindow->Refresh(false);
        }

    } else {
        m_bmpScaled = wxBitmap();
    }
}

void uicallgraphpanel::OnLeftDown(wxMouseEvent& event)
{
    m_scrolledWindow->GetViewStart(&m_viewPortOrigin.x, &m_viewPortOrigin.y);
    m_startigPoint = event.GetPosition();
    m_scrolledWindow->SetCursor(wxCursor(wxCURSOR_SIZING));
}

void uicallgraphpanel::OnMouseMove(wxMouseEvent& event)
{
    if(event.LeftIsDown()) {
        int dx, dy;
        m_scrolledWindow->GetScrollPixelsPerUnit(&dx, &dy);
        m_scrolledWindow->Scroll(m_viewPortOrigin.x + (m_startigPoint.x - event.GetPosition().x) / dx,
                                 m_viewPortOrigin.y + (m_startigPoint.y - event.GetPosition().y) / dy);
    }
}
void uicallgraphpanel::OnLeftUp(wxMouseEvent& event) { m_scrolledWindow->SetCursor(*wxSTANDARD_CURSOR); }

void uicallgraphpanel::OnMouseWheel(wxMouseEvent& event)
{
    if(event.ControlDown()) {
        m_scale += (float)event.GetWheelRotation() / (event.GetWheelDelta() * 10);
        if(m_scale < 0.1)
            m_scale = 0.1;
        else if(m_scale > 1)
            m_scale = 1;
        UpdateImage();
    }
}

void uicallgraphpanel::OnZoom100(wxCommandEvent& event)
{
    float xscale = (float)(m_scrolledWindow->GetClientSize().x - 40) / m_bmpOrig.GetWidth();
    float yscale = (float)(m_scrolledWindow->GetClientSize().y - 40) / m_bmpOrig.GetHeight();

    m_scale = xscale < yscale ? xscale : yscale;

    if(m_scale < 0.1)
        m_scale = 0.1;
    else if(m_scale > 1)
        m_scale = 1;
    UpdateImage();
}

void uicallgraphpanel::OnZoomIn(wxCommandEvent& event)
{
    m_scale = m_scale + 0.1;
    if(m_scale > 1) m_scale = 1;
    UpdateImage();
}

void uicallgraphpanel::OnZoomOut(wxCommandEvent& event)
{
    m_scale = m_scale - 0.1;
    if(m_scale < 0.1) m_scale = 0.1;
    UpdateImage();
}

void uicallgraphpanel::OnZoomOriginal(wxCommandEvent& event)
{
    m_scale = 1;
    UpdateImage();
}