File: memoryview.cpp

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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright            : (C) 2008 by Eran Ifrah
// file name            : memoryview.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 <wx/tokenzr.h>
#include <wx/regex.h>
#include "manager.h"
#include "memoryview.h"
#include "frame.h"

MemoryView::MemoryView( wxWindow* parent )
    : MemoryViewBase( parent )
{
    m_buttonUpdate->Connect( wxEVT_UPDATE_UI, wxUpdateUIEventHandler( MemoryView::OnUpdateUI ), NULL, this );
    m_textCtrlExpression->Connect( wxEVT_COMMAND_TEXT_ENTER, wxTextEventHandler( MemoryView::OnEvaluate ), NULL, this );
}

void MemoryView::OnEvaluate( wxCommandEvent& event )
{
    wxUnusedVar(event);
    ManagerST::Get()->UpdateDebuggerPane();
}

void MemoryView::OnEvaluateUI( wxUpdateUIEvent& event )
{
    event.Enable(m_textCtrlExpression->GetValue().IsEmpty() == false);
}

void MemoryView::Clear()
{
    m_textCtrlExpression->Clear();
    m_textCtrlMemory->Clear();
}

size_t MemoryView::GetColumns() const
{
    long value(8);
    m_choiceCols->GetStringSelection().ToLong(&value);
    return value;
}

size_t MemoryView::GetSize() const
{
    long value(32);
    m_choiceSize->GetStringSelection().ToLong(&value);
    return value;
}

void MemoryView::SetViewString(const wxString& text)
{
    m_textCtrlMemory->Freeze();
    // get old value
    wxString oldValue = m_textCtrlMemory->GetValue();

    m_textCtrlMemory->Clear();
    // first check that we are trying to view the same addresses
    wxString newAddr = text.BeforeFirst(wxT(':'));
    wxString oldAddr = oldValue.BeforeFirst(wxT(':'));

    // set the new value
    m_textCtrlMemory->SetValue(text);

    if (newAddr == oldAddr) {

        size_t shortLen = text.Length() < oldValue.Length() ? text.Length() : oldValue.Length();

        // same address, loop over the strings
        wxTextAttr style;
        style.SetTextColour(wxT("RED"));

        long start(wxNOT_FOUND);
        bool needColouring(false);
        long possibleStart(0);

        for (size_t i=0; i<shortLen; i++) {

            // reset word
            if ((text.GetChar(i) == wxT(' ') || text.GetChar(i) == wxT('\n')) && needColouring) {

                if (text.GetChar(i) != wxT('\n')) {
                    m_textCtrlMemory->SetStyle(start, (long)i, style);
                }

                start = wxNOT_FOUND;
                needColouring = false;
            }

            if (text.GetChar(i) == wxT(' ') || text.GetChar(i) == wxT('\n')) {
                possibleStart = (long)i;
            }

            if (text.GetChar(i) != oldValue.GetChar(i)) {
                needColouring = true;
                if (start == wxNOT_FOUND) {
                    start = possibleStart;
                }
            }
        }
    }

    // loop over the text and set the address in grey colour
    wxTextAttr addrAttr;
    addrAttr.SetTextColour(wxT("GREY"));
    wxFont addrFont = m_textCtrlMemory->GetFont();
    addrFont.SetWeight(wxFONTWEIGHT_BOLD);
    addrFont.SetStyle(wxFONTSTYLE_ITALIC);

    addrAttr.SetFont(addrFont);

    wxArrayString lines = wxStringTokenize(text, wxT("\n"), wxTOKEN_STRTOK);
    for (size_t i=0; i<lines.GetCount(); i++) {
        long addr_end = lines.Item(i).Find(wxT(':'));
        if (addr_end != wxNOT_FOUND) {
            long pos = m_textCtrlMemory->XYToPosition(0, (long)i);
            m_textCtrlMemory->SetStyle(pos, pos + addr_end, addrAttr);
        }
    }

    m_textCtrlMemory->DiscardEdits(); // make this operation undoable
    m_textCtrlMemory->Thaw();
}

void MemoryView::OnUpdate(wxCommandEvent& e)
{
    static wxRegEx reHex(wxT("[0][x][0-9a-fA-F][0-9a-fA-F]"));

    // extract the text memory from the text control and pass it to the debugger
    wxString memory;
    wxArrayString lines = wxStringTokenize(m_textCtrlMemory->GetValue(), wxT("\n"), wxTOKEN_STRTOK);
    for (size_t i=0; i<lines.GetCount(); i++) {
        wxString line = lines.Item(i).AfterFirst(wxT(':')).BeforeFirst(wxT(':')).Trim().Trim(false);
        wxArrayString hexValues = wxStringTokenize(line, wxT(" "), wxTOKEN_STRTOK);
        for (size_t y=0; y<hexValues.GetCount(); y++) {
            wxString hex = hexValues.Item(y);
            if (reHex.Matches( hex ) && hex.Len() == 4) {
                // OK
                continue;
            } else {
                wxMessageBox(wxString::Format(_("Invalid memory value: %s"), hex), _("CodeLite"), wxICON_WARNING|wxOK);
                // update the pane to old value
                ManagerST::Get()->UpdateDebuggerPane();
                return;
            }
        }

        if (line.IsEmpty() == false) {
            memory << line << wxT(" ");
        }
    }

    // set the new memory
    memory = memory.Trim().Trim(false);
    ManagerST::Get()->SetMemory(m_textCtrlExpression->GetValue(), GetSize(), memory);

    // update the view
    ManagerST::Get()->UpdateDebuggerPane();
}

void MemoryView::OnUpdateUI(wxUpdateUIEvent& event)
{
    event.Enable(m_textCtrlMemory->IsModified());
}

void MemoryView::OnMemorySize(wxCommandEvent& event)
{
    wxUnusedVar(event);
    ManagerST::Get()->UpdateDebuggerPane();
}

void MemoryView::OnNumberOfRows(wxCommandEvent& event)
{
    wxUnusedVar(event);
    ManagerST::Get()->UpdateDebuggerPane();
}
void MemoryView::OnTextDClick(wxMouseEvent& event)
{
}
void MemoryView::OnTextEntered(wxCommandEvent& event)
{
    wxUnusedVar(event);
    ManagerST::Get()->UpdateDebuggerPane();
}