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/*
* Copyright (C) 2017 Thales Lima Oliveira <thales@ufu.br>
*
* 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
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "MathExpression.h"
#include "MathExpressionForm.h"
#define ERROR_INDICATOR 10
MathExpressionForm::MathExpressionForm(wxWindow* parent, MathExpression* mathExpr) : MathExpressionFormBase(parent)
{
m_parent = parent;
m_mathExpr = mathExpr;
// Variables string.
wxString variables = "";
for(unsigned int i = 0; i < m_mathExpr->GetVariables().size(); ++i) {
variables += m_mathExpr->GetVariables()[i] + " ";
}
variables.RemoveLast();
// Variables text ctrl.
wxFont variablesFont = m_textCtrlVariables->GetFont();
variablesFont.SetWeight(wxFONTWEIGHT_BOLD);
m_textCtrlVariables->SetFont(variablesFont);
m_textCtrlVariables->SetForegroundColour(wxColour(160, 0, 0));
m_textCtrlVariables->SetValue(variables);
m_stcMathExpr->SetText(m_mathExpr->GetMathExpression());
m_staticTextCheckStatus->SetLabel(_("No checks performed."));
SetSintaxHighlights();
m_stcMathExpr->SetTabWidth(3);
// Error indicator
m_stcMathExpr->IndicatorSetUnder(ERROR_INDICATOR, true);
m_stcMathExpr->IndicatorSetStyle(ERROR_INDICATOR, wxSTC_INDIC_ROUNDBOX);
m_stcMathExpr->IndicatorSetAlpha(ERROR_INDICATOR, 200);
m_stcMathExpr->IndicatorSetUnder(ERROR_INDICATOR, true);
m_stcMathExpr->IndicatorSetForeground(ERROR_INDICATOR, wxColor(255, 85, 0));
m_stcMathExpr->SetIndicatorCurrent(ERROR_INDICATOR);
// Parser error messages to translation.
m_translatedErrorMsg.clear();
m_translatedErrorMsg.push_back(_("Syntax error"));
m_translatedErrorMsg.push_back(_("Mismatched parenthesis"));
m_translatedErrorMsg.push_back(_("Missing ')'"));
m_translatedErrorMsg.push_back(_("Empty parentheses"));
m_translatedErrorMsg.push_back(_("Syntax error: Operator expected"));
m_translatedErrorMsg.push_back(_("Not enough memory"));
m_translatedErrorMsg.push_back(_("An unexpected error occurred"));
m_translatedErrorMsg.push_back(_("Syntax error in input variables"));
m_translatedErrorMsg.push_back(_("Illegal number of parameters to function"));
m_translatedErrorMsg.push_back(_("Syntax error: Premature end of string"));
m_translatedErrorMsg.push_back(_("Syntax error: Expecting ( after function"));
m_translatedErrorMsg.push_back(_("Syntax error: Unknown identifier"));
m_translatedErrorMsg.push_back(_("No function has been parsed yet"));
}
MathExpressionForm::~MathExpressionForm() {}
void MathExpressionForm::OnCheckButtonClick(wxCommandEvent& event) { CheckMathExpression(); }
void MathExpressionForm::OnOKButtonClick(wxCommandEvent& event)
{
if(ValidateData()) EndModal(wxID_OK);
}
bool MathExpressionForm::ValidateData()
{
if(!CheckMathExpression()) {
wxMessageDialog msg(this, _("There is an error on math expression."), _("Error"), wxOK | wxCENTRE | wxICON_ERROR);
msg.ShowModal();
return false;
}
wxString rawVariables = m_textCtrlVariables->GetValue();
wxString var = "";
std::vector<wxString> variables;
for(unsigned int i = 0; i < rawVariables.length(); ++i) {
if(rawVariables[i] == ' ') {
variables.push_back(var);
var = "";
} else if((i + 1) == static_cast<unsigned int>(rawVariables.length())) {
var += rawVariables[i];
variables.push_back(var);
} else {
var += rawVariables[i];
}
}
int diff = static_cast<int>(variables.size()) - static_cast<int>(m_mathExpr->GetVariables().size());
if(diff < 0) {
diff = std::abs(diff);
for(int i = 0; i < diff; ++i) { m_mathExpr->RemoveInNode(); }
} else if(diff > 0) {
for(int i = 0; i < diff; ++i) { m_mathExpr->AddInNode(); }
}
m_mathExpr->SetVariables(variables);
m_mathExpr->SetMathExpression(m_stcMathExpr->GetValue());
m_mathExpr->UpdatePoints();
return true;
}
void MathExpressionForm::SetSintaxHighlights()
{
wxString variables = m_textCtrlVariables->GetValue();
m_stcMathExpr->StyleClearAll();
m_stcMathExpr->SetLexer(wxSTC_LEX_DMAP);
m_stcMathExpr->StyleSetForeground(wxSTC_DMAP_OPERATOR, wxColour(180, 0, 255));
m_stcMathExpr->StyleSetForeground(wxSTC_DMAP_WORD, wxColour(10, 0, 255));
m_stcMathExpr->StyleSetForeground(wxSTC_DMAP_WORD2, wxColour(160, 0, 0));
// m_stcMathExpr->StyleSetForeground(wxSTC_DMAP_WORD3, wxColour(0, 150, 0));
m_stcMathExpr->StyleSetForeground(wxSTC_DMAP_NUMBER, wxColour(0, 150, 0));
m_stcMathExpr->StyleSetBold(wxSTC_DMAP_WORD, true);
m_stcMathExpr->StyleSetBold(wxSTC_DMAP_WORD2, true);
m_stcMathExpr->StyleSetBold(wxSTC_DMAP_WORD3, true);
m_stcMathExpr->SetKeyWords(
0, wxT("abs acos acosh arg asin asinh atan atan2 atanh cbrt conj ceil cos cosh cot csc eval exp exp2 floor "
"hypot if imag int log log2 log10 max min polar pow real sec sin sinh sqrt tan tanh trunc"));
m_stcMathExpr->SetKeyWords(1, wxT("time step switch ") + variables);
m_stcMathExpr->SetKeyWords(2, wxT("true false open closed pi e"));
}
void MathExpressionForm::OnTextUpdate(wxCommandEvent& event) { SetSintaxHighlights(); }
std::string MathExpressionForm::GetVariablesToParse()
{
wxString variables = wxT("time,step,switch,") + m_textCtrlVariables->GetValue();
for(unsigned int i = 0; i < variables.length(); ++i) {
if(variables[i] == ' ') variables[i] = ',';
}
return static_cast<std::string>(variables);
}
void MathExpressionForm::OnLeftClickDown(wxMouseEvent& event)
{
m_stcMathExpr->IndicatorClearRange(0, m_stcMathExpr->GetValue().length());
event.Skip();
}
bool MathExpressionForm::CheckMathExpression()
{
bool success = true;
m_stcMathExpr->IndicatorClearRange(0, m_stcMathExpr->GetValue().length());
int currentLang = wxLocale::GetSystemLanguage();
wxLocale newLocale(wxLANGUAGE_ENGLISH_US);
MathExprParser parser = m_mathExpr->GetParser();
int parserRes = parser.Parse(static_cast<std::string>(m_stcMathExpr->GetValue()), GetVariablesToParse());
if(parserRes != -1) {
m_staticTextCheckStatus->SetLabel(m_translatedErrorMsg[parser.GetParseErrorType()]);
m_staticTextCheckStatus->SetForegroundColour(wxColor(255, 0, 0));
m_stcMathExpr->IndicatorFillRange(parserRes, 1);
success = false;
} else {
m_staticTextCheckStatus->SetLabel(_("The math expression is correct."));
m_staticTextCheckStatus->SetForegroundColour(wxColor(0, 128, 0));
}
wxLocale oldLocale(currentLang);
Layout();
return success;
}
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