Qalculate! – TDE frontend for the ultimate desktop calculator
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qalculate-tde/src/qalculateeditmatrixvectordi...

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/***************************************************************************
* Copyright (C) 2005 by Niklas Knutsson *
* nq@altern.org *
* *
* 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. *
* *
* 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, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "qalculateeditmatrixvectordialog.h"
#include "qalculate_tde_utils.h"
#include "qalculateeditnamesdialog.h"
#include <string>
#include <tqgrid.h>
#include <klineedit.h>
#include <tqpushbutton.h>
#include <kcombobox.h>
#include <tqlabel.h>
#include <tdelocale.h>
#include <tqvbox.h>
#include <tqhbox.h>
#include <tqcheckbox.h>
#include <tdemessagebox.h>
#include <tqspinbox.h>
#include <tqlayout.h>
#include <tqbuttongroup.h>
#include <tqradiobutton.h>
#include <tqtable.h>
#include <tdeapplication.h>
extern PrintOptions printops;
extern EvaluationOptions evalops;
extern tree_struct variable_cats;
class QalculateEditMatrixVectorTableItem : public TQTableItem {
public:
QalculateEditMatrixVectorTableItem(TQTable *table);
QalculateEditMatrixVectorTableItem(TQTable *table, const TQString & text);
int alignment() const;
};
class QalculateEditMatrixTable : public TQTable {
public:
QalculateEditMatrixTable(TQWidget *parent = 0, const char *name = 0) : TQTable(parent, name) {}
QalculateEditMatrixTable(int numRows, int numCols, TQWidget *parent = 0, const char *name = 0) : TQTable(numRows, numCols, parent, name) {}
TQWidget *beginEdit(int row, int col, bool replace) {
TQWidget *w = TQTable::beginEdit(row, col, replace);
((TQLineEdit*) w)->selectAll();
return w;
}
};
QalculateEditMatrixVectorDialog::QalculateEditMatrixVectorDialog(TQWidget *parent, const char *name) : KDialogBase(parent, name, true, i18n("Edit Variable"), Ok | Cancel | Help, Ok, true) {
names_edit_dialog = NULL;
edited_variable = NULL;
setMainWidget(new TQWidget(this));
TQGridLayout *grid = new TQGridLayout(mainWidget(), 1, 1, 0, spacingHint());
grid->addWidget(new TQLabel(i18n("Name:"), mainWidget()), 0, 0);
nameEdit = new KLineEdit(mainWidget());
grid->addWidget(nameEdit, 0, 1);
TQHBoxLayout *hbox = new TQHBoxLayout(0, 0, spacingHint());
grid->addMultiCellLayout(hbox, 1, 1, 0, 1);
namesLabel = new TQLabel(mainWidget());
namesLabel->setAlignment(TQt::AlignRight);
namesLabel->setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Preferred);
hbox->addWidget(namesLabel);
namesButton = new TQPushButton(i18n("Names Details"), mainWidget());
hbox->addWidget(namesButton);
grid->addWidget(new TQLabel(i18n("Category:"), mainWidget()), 2, 0);
categoryCombo = new KComboBox(mainWidget());
categoryCombo->setEditable(true);
grid->addWidget(categoryCombo, 2, 1);
grid->addWidget(new TQLabel(i18n("Descriptive name:"), mainWidget()), 3, 0);
titleEdit = new KLineEdit(mainWidget());
grid->addWidget(titleEdit, 3, 1);
grid->addWidget(new TQLabel(i18n("Rows:"), mainWidget()), 4, 0);
rowsBox = new TQSpinBox(1, 1000, 1, mainWidget());
grid->addWidget(rowsBox, 4, 1);
grid->addWidget(new TQLabel(i18n("Columns:"), mainWidget()), 5, 0);
columnsBox = new TQSpinBox(1, 1000, 1, mainWidget());
grid->addWidget(columnsBox, 5, 1);
hbox = new TQHBoxLayout(0, 0, spacingHint());
grid->addMultiCellLayout(hbox, 6, 6, 0, 1);
hbox->addItem(new TQSpacerItem(0, 0, TQSizePolicy::Expanding, TQSizePolicy::Minimum));
TQButtonGroup *group = new TQButtonGroup();
matrixButton = new TQRadioButton(i18n("Matrix"), mainWidget());
group->insert(matrixButton, 0);
hbox->addWidget(matrixButton);
vectorButton = new TQRadioButton(i18n("Vector"), mainWidget());
group->insert(vectorButton, 1);
hbox->addWidget(vectorButton);
elementsLabel = new TQLabel(i18n("Elements:"), mainWidget());
grid->addMultiCellWidget(elementsLabel, 7, 7, 0, 1);
elementsTable = new QalculateEditMatrixTable(0, 0, mainWidget());
grid->addMultiCellWidget(elementsTable, 8, 8, 0, 1);
connect(namesButton, SIGNAL(clicked()), this, SLOT(editNames()));
connect(nameEdit, SIGNAL(textChanged(const TQString&)), this, SLOT(nameChanged(const TQString&)));
connect(rowsBox, SIGNAL(valueChanged(int)), this, SLOT(rowsChanged(int)));
connect(columnsBox, SIGNAL(valueChanged(int)), this, SLOT(columnsChanged(int)));
connect(group, SIGNAL(clicked(int)), this, SLOT(typeChanged(int)));
}
QalculateEditMatrixVectorDialog::~QalculateEditMatrixVectorDialog() {}
void QalculateEditMatrixVectorDialog::slotHelp() {
TDEApplication::kApplication()->invokeHelp("qalculate-vectors-matrices");
}
void QalculateEditMatrixVectorDialog::typeChanged(int i) {
if(i == 0) {
elementsLabel->setText(i18n("Elements:"));
bool b = true;
for(int index_r = elementsTable->numRows() - 1; index_r >= 0 && b; index_r--) {
for(int index_c = elementsTable->numCols() - 1; index_c >= 0; index_c--) {
if(elementsTable->text(index_r, index_c).isEmpty()) {
elementsTable->setText(index_r, index_c, "0");
} else {
b = false;
break;
}
}
}
} else {
elementsLabel->setText(i18n("Elements (in horizontal order):"));
}
}
void QalculateEditMatrixVectorDialog::rowsChanged(int i) {
int r = elementsTable->numRows();
elementsTable->setNumRows(i);
bool b = matrixButton->isChecked();
for(int index_r = r; index_r < i; index_r++) {
for(int index_c = 0; index_c < elementsTable->numCols(); index_c++) {
if(b) elementsTable->setItem(index_r, index_c, new QalculateEditMatrixVectorTableItem(elementsTable, "0"));
else elementsTable->setItem(index_r, index_c, new QalculateEditMatrixVectorTableItem(elementsTable));
}
}
}
void QalculateEditMatrixVectorDialog::columnsChanged(int i) {
int c = elementsTable->numCols();
elementsTable->setNumCols(i);
bool b = matrixButton->isChecked();
for(int index_r = 0; index_r < elementsTable->numRows(); index_r++) {
for(int index_c = c; index_c < i; index_c++) {
if(b) elementsTable->setItem(index_r, index_c, new QalculateEditMatrixVectorTableItem(elementsTable, "0"));
else elementsTable->setItem(index_r, index_c, new QalculateEditMatrixVectorTableItem(elementsTable));
}
}
}
KnownVariable *QalculateEditMatrixVectorDialog::newVector(TQString category) {
return editVariable(category, NULL, NULL, false, true);
}
KnownVariable *QalculateEditMatrixVectorDialog::newMatrix(TQString category) {
return editVariable(category, NULL, NULL, false, false);
}
void QalculateEditMatrixVectorDialog::slotOk() {
std::string str = nameEdit->text().ascii();
remove_blank_ends(str);
if(str.empty() && (!names_edit_dialog || names_edit_dialog->isEmpty())) {
//no name -- open dialog again
nameEdit->setFocus();
KMessageBox::error(this, i18n("Empty name field"));
return;
}
//variable with the same name exists -- overwrite or open dialog again
if((!edited_variable || !edited_variable->hasName(str)) && (!names_edit_dialog || names_edit_dialog->isEmpty()) && CALCULATOR->variableNameTaken(str, edited_variable) && KMessageBox::questionYesNo(this, i18n("An unit or variable with the same name already exists.\nDo you want to overwrite it?")) == KMessageBox::No) {
nameEdit->setFocus();
return;
}
KnownVariable *v = edited_variable;
if(!v) {
//no need to create a new variable when a variable with the same name exists
Variable *var = CALCULATOR->getActiveVariable(str);
if(var && var->isLocal() && var->isKnown()) v = (KnownVariable*) var;
}
MathStructure mstruct_new;
if(!init_value) {
int r = rowsBox->value();
int c = columnsBox->value();
if(vectorButton->isChecked()) {
mstruct_new.clearVector();
std::string str2;
for(int index_r = 0; index_r < r; index_r++) {
for(int index_c = 0; index_c < c; index_c++) {
if(!elementsTable->text(index_r, index_c).isEmpty()) {
str2 = elementsTable->text(index_r, index_c).ascii();
remove_blank_ends(str2);
if(!str2.empty()) {
mstruct_new.addChild(CALCULATOR->calculate(CALCULATOR->unlocalizeExpression(str2, evalops.parse_options)));
}
}
}
}
} else {
mstruct_new.clearMatrix();
mstruct_new.resizeMatrix(r, c, m_undefined);
for(int index_r = 0; index_r < r; index_r++) {
for(int index_c = 0; index_c < c; index_c++) {
if(elementsTable->text(index_r, index_c).isEmpty()) mstruct_new.setElement(m_zero, index_r + 1, index_c + 1);
else mstruct_new.setElement(CALCULATOR->calculate(CALCULATOR->unlocalizeExpression(elementsTable->text(index_r, index_c).ascii(), evalops.parse_options)), index_r + 1, index_c + 1);
}
}
}
}
bool add_var = false;
if(v) {
//update existing variable
v->setLocal(true);
if(!v->isBuiltin()) {
if(init_value) {
v->set(*init_value);
} else {
v->set(mstruct_new);
}
}
} else {
//new variable
if(force_init_value && init_value) {
//forced value
v = new KnownVariable("", "", *init_value, "", true);
} else {
v = new KnownVariable("", "", mstruct_new, "", true);
}
add_var = true;
}
v->setCategory(categoryCombo->lineEdit()->text().ascii());
v->setTitle(titleEdit->text().ascii());
if(!v->isBuiltin()) {
if(names_edit_dialog) {
names_edit_dialog->saveNames(v, str.c_str());
} else {
if(v->countNames() == 0) {
ExpressionName ename(str);
ename.reference = true;
v->setName(ename, 1);
} else {
v->setName(str, 1);
}
}
}
if(add_var) {
CALCULATOR->addVariable(v);
}
edited_variable = v;
accept();
}
KnownVariable *QalculateEditMatrixVectorDialog::editVariable(TQString category, KnownVariable *v, MathStructure *initial_value, bool force_value, bool create_vector) {
nameEdit->setFocus();
if((v && !v->get().isVector()) || (initial_value && !initial_value->isVector())) {
return NULL;
}
if(names_edit_dialog) {
delete names_edit_dialog;
names_edit_dialog = NULL;
}
edited_variable = v;
if(initial_value) {
create_vector = !initial_value->isMatrix();
} else if(v) {
create_vector = !v->get().isMatrix();
}
if(create_vector) {
vectorButton->setChecked(true);
elementsLabel->setText(i18n("Elements (in horizontal order):"));
} else {
matrixButton->setChecked(true);
elementsLabel->setText(i18n("Elements:"));
}
if(create_vector) {
if(v) {
if(v->isLocal())
setCaption(i18n("Edit Vector"));
else
setCaption(i18n("Edit Vector (global)"));
} else {
setCaption(i18n("New Vector"));
}
} else {
if(v) {
if(v->isLocal())
setCaption(i18n("Edit Matrix"));
else
setCaption(i18n("Edit Matrix (global)"));
} else {
setCaption(i18n("New Matrix"));
}
}
actionButton(Ok)->setEnabled(true);
namesLabel->setText("");
//TQStringList cats;
TQString catstr;
categoryCombo->clear();
tree_struct *item, *item2;
variable_cats.it = variable_cats.items.begin();
if(variable_cats.it != variable_cats.items.end()) {
item = &*variable_cats.it;
++variable_cats.it;
item->it = item->items.begin();
} else {
item = NULL;
}
catstr = "";
while(item) {
if(!catstr.isEmpty()) catstr += "/";
catstr += item->item.c_str();
categoryCombo->insertItem(catstr);
while(item && item->it == item->items.end()) {
int str_i = catstr.findRev("/");
if(str_i < 0) {
catstr = "";
} else {
catstr.truncate(str_i);
}
item = item->parent;
}
if(item) {
item2 = &*item->it;
++item->it;
item = item2;
item->it = item->items.begin();
}
}
int r = 4, c = 4;
const MathStructure *old_vctr = NULL;
if(v) {
if(create_vector) {
old_vctr = &v->get();
} else {
c = v->get().columns();
r = v->get().rows();
}
set_name_label_and_entry(v, nameEdit, namesLabel);
nameEdit->setReadOnly(v->isBuiltin());
rowsBox->setEnabled(!v->isBuiltin());
columnsBox->setEnabled(!v->isBuiltin());
matrixButton->setEnabled(!v->isBuiltin());
vectorButton->setEnabled(!v->isBuiltin());
elementsTable->setReadOnly(v->isBuiltin());
categoryCombo->lineEdit()->setText(v->category().c_str());
titleEdit->setText(v->title(false).c_str());
} else {
nameEdit->setReadOnly(false);
rowsBox->setEnabled(true);
columnsBox->setEnabled(true);
matrixButton->setEnabled(true);
vectorButton->setEnabled(true);
elementsTable->setReadOnly(false);
//fill in default values
nameEdit->setText(CALCULATOR->getName().c_str());
namesLabel->setText("");
categoryCombo->lineEdit()->setText(category);
titleEdit->setText("");
if(force_value) {
if(create_vector) {
old_vctr = initial_value;
} else {
c = initial_value->columns();
r = initial_value->rows();
}
rowsBox->setEnabled(false);
columnsBox->setEnabled(false);
matrixButton->setEnabled(false);
vectorButton->setEnabled(false);
elementsTable->setReadOnly(true);
}
}
if(create_vector) {
if(old_vctr) {
r = old_vctr->countChildren();
c = (int) ::sqrt(r) + 4;
if(r % c > 0) {
r = r / c + 1;
} else {
r = r / c;
}
} else {
c = 4;
r = 4;
}
}
rowsBox->setValue(r);
columnsBox->setValue(c);
elementsTable->setNumRows(r);
elementsTable->setNumCols(c);
int timeout;
if(force_value) timeout = 3000 / (r * c);
else timeout = 3000;
PrintOptions po;
po.number_fraction_format = FRACTION_DECIMAL_EXACT;
for(int index_r = 0; index_r < r; index_r++) {
for(int index_c = 0; index_c < c; index_c++) {
if(create_vector) {
if(old_vctr && index_r * c + index_c < (int) old_vctr->countChildren()) {
elementsTable->setText(index_r, index_c, old_vctr->getChild(index_r * c + index_c + 1)->print(po).c_str());
} else {
elementsTable->setText(index_r, index_c, "");
}
} else {
if(v) {
elementsTable->setText(index_r, index_c, v->get().getElement(index_r + 1, index_c + 1)->print(po).c_str());
} else if(initial_value) {
elementsTable->setText(index_r, index_c, initial_value->getElement(index_r + 1, index_c + 1)->print(po).c_str());
} else {
elementsTable->setText(index_r, index_c, "0");
}
}
}
}
init_value = initial_value;
force_init_value = force_value;
if(exec() == TQDialog::Accepted) {
v = edited_variable;
edited_variable = NULL;
return v;
}
edited_variable = NULL;
return NULL;
}
void QalculateEditMatrixVectorDialog::editNames() {
if(!names_edit_dialog) {
names_edit_dialog = new QalculateEditNamesDialog(TYPE_VARIABLE, this);
names_edit_dialog->setNames(edited_variable, nameEdit->text(), false);
} else {
names_edit_dialog->setNames(edited_variable, nameEdit->text(), true);
}
names_edit_dialog->exec();
names_edit_dialog->setNamesLE(nameEdit, namesLabel);
}
void QalculateEditMatrixVectorDialog::nameChanged(const TQString &name) {
if(name.isNull()) return;
if(!CALCULATOR->variableNameIsValid(name.ascii())) {
nameEdit->blockSignals(true);
nameEdit->setText(CALCULATOR->convertToValidVariableName(name.ascii()).c_str());
nameEdit->blockSignals(false);
}
}
#if TQT_VERSION >= 0x030200
QalculateEditMatrixVectorTableItem::QalculateEditMatrixVectorTableItem(TQTable *table) : TQTableItem(table, TQTableItem::OnTyping) {}
#else
QalculateEditMatrixVectorTableItem::QalculateEditMatrixVectorTableItem(TQTable *table) : TQTableItem(table, TQTableItem::OnTyping, TQString::null) {}
#endif
QalculateEditMatrixVectorTableItem::QalculateEditMatrixVectorTableItem(TQTable *table, const TQString & text) : TQTableItem(table, TQTableItem::OnTyping, text) {}
int QalculateEditMatrixVectorTableItem::alignment() const {return TQt::AlignRight;}
#include "qalculateeditmatrixvectordialog.moc"