Initial import of qalculate-kde 0.9.7

1 files changed, 491 insertions, 0 deletions

diff --git a/src/qalculateeditmatrixvectordialog.cpp b/src/qalculateeditmatrixvectordialog.cpp
new file mode 100644
index 0000000..1dccb03
--- /dev/null
+++ b/src/qalculateeditmatrixvectordialog.cpp
@@ -0,0 +1,491 @@
+/***************************************************************************
+ *   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_kde_utils.h"
+#include "qalculateeditnamesdialog.h"
+
+#include <qgrid.h>
+#include <klineedit.h>
+#include <qpushbutton.h>
+#include <kcombobox.h>
+#include <qlabel.h>
+#include <klocale.h>
+#include <qvbox.h>
+#include <qhbox.h>
+#include <qcheckbox.h>
+#include <kmessagebox.h>
+#include <qspinbox.h>
+#include <qlayout.h>
+#include <qbuttongroup.h>
+#include <qradiobutton.h>
+#include <qtable.h>
+#include <kapplication.h>
+
+extern PrintOptions printops;
+extern EvaluationOptions evalops;
+extern tree_struct variable_cats;
+
+class QalculateEditMatrixVectorTableItem : public QTableItem {
+
+	public:
+		
+		QalculateEditMatrixVectorTableItem(QTable *table);
+		QalculateEditMatrixVectorTableItem(QTable *table, const QString & text);
+
+		int alignment() const;
+	
+};
+
+class QalculateEditMatrixTable : public QTable {
+
+	public:
+		
+		QalculateEditMatrixTable(QWidget *parent = 0, const char *name = 0) : QTable(parent, name) {}
+		QalculateEditMatrixTable(int numRows, int numCols, QWidget *parent = 0, const char *name = 0) : QTable(numRows, numCols, parent, name) {}
+
+		QWidget *beginEdit(int row, int col, bool replace) {
+			QWidget *w = QTable::beginEdit(row, col, replace);
+			((QLineEdit*) w)->selectAll();
+			return w;
+		}
+	
+};
+
+QalculateEditMatrixVectorDialog::QalculateEditMatrixVectorDialog(QWidget *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 QWidget(this));
+	QGridLayout *grid = new QGridLayout(mainWidget(), 1, 1, 0, spacingHint());
+	grid->addWidget(new QLabel(i18n("Name:"), mainWidget()), 0, 0);
+	nameEdit = new KLineEdit(mainWidget());
+	grid->addWidget(nameEdit, 0, 1);
+	QHBoxLayout *hbox = new QHBoxLayout(0, 0, spacingHint());
+	grid->addMultiCellLayout(hbox, 1, 1, 0, 1);
+	namesLabel = new QLabel(mainWidget());
+	namesLabel->setAlignment(Qt::AlignRight);
+	namesLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+	hbox->addWidget(namesLabel);
+	namesButton = new QPushButton(i18n("Names Details"), mainWidget());
+	hbox->addWidget(namesButton);
+	grid->addWidget(new QLabel(i18n("Category:"), mainWidget()), 2, 0);
+	categoryCombo = new KComboBox(mainWidget());
+	categoryCombo->setEditable(true);
+	grid->addWidget(categoryCombo, 2, 1);
+	grid->addWidget(new QLabel(i18n("Descriptive name:"), mainWidget()), 3, 0);
+	titleEdit = new KLineEdit(mainWidget());
+	grid->addWidget(titleEdit, 3, 1);
+	grid->addWidget(new QLabel(i18n("Rows:"), mainWidget()), 4, 0);
+	rowsBox = new QSpinBox(1, 1000, 1, mainWidget());
+	grid->addWidget(rowsBox, 4, 1);
+	grid->addWidget(new QLabel(i18n("Columns:"), mainWidget()), 5, 0);
+	columnsBox = new QSpinBox(1, 1000, 1, mainWidget());
+	grid->addWidget(columnsBox, 5, 1);
+	hbox = new QHBoxLayout(0, 0, spacingHint());
+	grid->addMultiCellLayout(hbox, 6, 6, 0, 1);
+	hbox->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum));
+	QButtonGroup *group = new QButtonGroup();
+	matrixButton = new QRadioButton(i18n("Matrix"), mainWidget());
+	group->insert(matrixButton, 0);
+	hbox->addWidget(matrixButton);
+	vectorButton = new QRadioButton(i18n("Vector"), mainWidget());
+	group->insert(vectorButton, 1);
+	hbox->addWidget(vectorButton);
+	elementsLabel = new QLabel(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 QString&)), this, SLOT(nameChanged(const QString&)));
+	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() {
+	KApplication::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(QString category) {
+	return editVariable(category, NULL, NULL, false, true);
+}
+KnownVariable *QalculateEditMatrixVectorDialog::newMatrix(QString category) {
+	return editVariable(category, NULL, NULL, false, false);
+}
+
+void QalculateEditMatrixVectorDialog::slotOk() {
+	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();
+			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(QString 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("");
+
+	//QStringList cats;
+	QString 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() == QDialog::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 QString &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 QT_VERSION >= 0x030200
+QalculateEditMatrixVectorTableItem::QalculateEditMatrixVectorTableItem(QTable *table) : QTableItem(table, QTableItem::OnTyping) {}
+#else
+QalculateEditMatrixVectorTableItem::QalculateEditMatrixVectorTableItem(QTable *table) : QTableItem(table, QTableItem::OnTyping, QString::null) {}
+#endif
+QalculateEditMatrixVectorTableItem::QalculateEditMatrixVectorTableItem(QTable *table, const QString & text) : QTableItem(table, QTableItem::OnTyping, text) {}
+
+int QalculateEditMatrixVectorTableItem::alignment() const {return Qt::AlignRight;}
+
+#include "qalculateeditmatrixvectordialog.moc"
+