Initial import of qalculate-kde 0.9.7

1 files changed, 308 insertions, 0 deletions

diff --git a/src/qalculateeditunknownvariabledialog.cpp b/src/qalculateeditunknownvariabledialog.cpp
new file mode 100644
index 0000000..4e7dc42
--- /dev/null
+++ b/src/qalculateeditunknownvariabledialog.cpp
@@ -0,0 +1,308 @@
+/***************************************************************************
+ *   Copyright (C) 2005 by Niklas Knutsson                                 *
+ *   [email protected]                                                         *
+ *                                                                         *
+ *   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 "qalculateeditunknownvariabledialog.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 <qlayout.h>
+#include <kapplication.h>
+
+extern PrintOptions printops;
+extern tree_struct variable_cats;
+
+QalculateEditUnknownVariableDialog::QalculateEditUnknownVariableDialog(QWidget *parent, const char *name) : KDialogBase(parent, name, true, i18n("Edit Variable"), Ok | Cancel | Help, Ok, true) {
+
+	names_edit_dialog = NULL;
+	edited_unknown = 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);
+	assumptionsBox = new QCheckBox(i18n("Custom assumptions:"), mainWidget());
+	grid->addMultiCellWidget(assumptionsBox, 2, 2, 0, 1);
+	typeLabel = new QLabel(i18n("Type"), mainWidget());
+	grid->addWidget(typeLabel, 3, 0);
+	typeCombo = new KComboBox(mainWidget());
+	typeCombo->setMaximumWidth(250);
+	typeCombo->setEditable(false);
+	typeCombo->insertItem(i18n("Unknown"));
+	typeCombo->insertItem(i18n("Not Matrix"));
+	typeCombo->insertItem(i18n("Number"));
+	typeCombo->insertItem(i18n("Complex Number"));
+	typeCombo->insertItem(i18n("Real Number"));
+	typeCombo->insertItem(i18n("Rational Number"));
+	typeCombo->insertItem(i18n("Integer"));
+	grid->addWidget(typeCombo, 3, 1);
+	signLabel = new QLabel(i18n("Sign"), mainWidget());
+	grid->addWidget(signLabel, 4, 0);
+	signCombo = new KComboBox(mainWidget());
+	signCombo->setMaximumWidth(250);
+	signCombo->setEditable(false);
+	signCombo->insertItem(i18n("Unknown"));
+	signCombo->insertItem(i18n("Positive"));
+	signCombo->insertItem(i18n("Non-Negative"));
+	signCombo->insertItem(i18n("Negative"));
+	signCombo->insertItem(i18n("Non-Positive"));
+	signCombo->insertItem(i18n("Non-Zero"));
+	grid->addWidget(signCombo, 4, 1);
+	grid->addWidget(new QLabel(i18n("Category:"), mainWidget()), 5, 0);
+	categoryCombo = new KComboBox(mainWidget());
+	categoryCombo->setMaximumWidth(250);
+	categoryCombo->setEditable(true);
+	grid->addWidget(categoryCombo, 5, 1);
+	grid->addWidget(new QLabel(i18n("Descriptive name:"), mainWidget()), 6, 0);
+	titleEdit = new KLineEdit(mainWidget());
+	grid->addWidget(titleEdit, 6, 1);
+
+	connect(assumptionsBox, SIGNAL(toggled(bool)), typeCombo, SLOT(setEnabled(bool)));
+	connect(assumptionsBox, SIGNAL(toggled(bool)), signCombo, SLOT(setEnabled(bool)));
+	connect(assumptionsBox, SIGNAL(toggled(bool)), typeLabel, SLOT(setEnabled(bool)));
+	connect(assumptionsBox, SIGNAL(toggled(bool)), signLabel, SLOT(setEnabled(bool)));
+	connect(typeCombo, SIGNAL(activated(int)), this, SLOT(typeComboActivated(int)));
+	connect(signCombo, SIGNAL(activated(int)), this, SLOT(signComboActivated(int)));
+	connect(namesButton, SIGNAL(clicked()), this, SLOT(editNames()));
+	connect(nameEdit, SIGNAL(textChanged(const QString&)), this, SLOT(nameChanged(const QString&)));
+	
+}
+
+QalculateEditUnknownVariableDialog::~QalculateEditUnknownVariableDialog() {}
+
+void QalculateEditUnknownVariableDialog::typeComboActivated(int i) {
+	if((AssumptionType) i <= ASSUMPTION_TYPE_COMPLEX && (AssumptionSign) signCombo->currentItem() != ASSUMPTION_SIGN_NONZERO) {
+		signCombo->blockSignals(true);
+		signCombo->setCurrentItem(ASSUMPTION_SIGN_UNKNOWN);
+		signCombo->blockSignals(false);
+	}
+}
+void QalculateEditUnknownVariableDialog::signComboActivated(int i) {
+	if((AssumptionSign) i != ASSUMPTION_SIGN_NONZERO && (AssumptionSign) i != ASSUMPTION_SIGN_UNKNOWN && (AssumptionType) typeCombo->currentItem() <= ASSUMPTION_TYPE_COMPLEX) {
+		typeCombo->blockSignals(true);
+		typeCombo->setCurrentItem(ASSUMPTION_TYPE_REAL);
+		typeCombo->blockSignals(false);
+	}
+}
+
+void QalculateEditUnknownVariableDialog::slotHelp() {
+	KApplication::kApplication()->invokeHelp("qalculate-variable-creation");
+}
+void QalculateEditUnknownVariableDialog::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_unknown || !edited_unknown->hasName(str)) && (!names_edit_dialog || names_edit_dialog->isEmpty()) && CALCULATOR->variableNameTaken(str, edited_unknown) && 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;
+	}
+	
+	UnknownVariable *v = edited_unknown;
+	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 = (UnknownVariable*) var;
+	}
+	bool add_var = false;
+	if(v) {
+		//update existing variable
+		v->setLocal(true);
+	} else {
+		//new unknown variable
+		v = new UnknownVariable("", "", "", true);
+		add_var = true;
+	}
+	if(!v->isBuiltin()) {
+		if(assumptionsBox->isChecked()) {
+			if(!v->assumptions()) v->setAssumptions(new Assumptions());
+			v->assumptions()->setType((AssumptionType) typeCombo->currentItem());
+			v->assumptions()->setSign((AssumptionSign) signCombo->currentItem());
+		} else {
+			v->setAssumptions(NULL);
+		}
+	}
+	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_unknown = v;
+	accept();
+}
+
+
+UnknownVariable *QalculateEditUnknownVariableDialog::editVariable(QString category, UnknownVariable *v) {
+
+	nameEdit->setFocus();
+
+	if(names_edit_dialog) {
+		delete names_edit_dialog;
+		names_edit_dialog = NULL;
+	}
+	edited_unknown = v;
+	if(v) {
+		if(v->isLocal())
+			setCaption(i18n("Edit Unknown Variable"));
+		else
+			setCaption(i18n("Edit Unknown Variable (global)"));
+	} else {
+		setCaption(i18n("New Unknown Variable"));
+	}
+
+	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();	
+		}
+	}
+
+	if(v) {
+		//fill in original parameters
+		set_name_label_and_entry(v, nameEdit, namesLabel);
+		nameEdit->setReadOnly(v->isBuiltin());
+		assumptionsBox->setEnabled(!v->isBuiltin());
+		categoryCombo->lineEdit()->setText(v->category().c_str());
+		titleEdit->setText(v->title(false).c_str());
+		if(v->assumptions()) {
+			assumptionsBox->setChecked(true);
+			typeCombo->setCurrentItem(v->assumptions()->type());
+			signCombo->setCurrentItem(v->assumptions()->sign());
+		} else {
+			assumptionsBox->setChecked(false);
+			typeCombo->setCurrentItem(CALCULATOR->defaultAssumptions()->type());
+			signCombo->setCurrentItem(CALCULATOR->defaultAssumptions()->sign());
+		}
+	} else {
+		nameEdit->setReadOnly(false);
+		assumptionsBox->setChecked(true);
+
+		//fill in default values
+		nameEdit->setText(CALCULATOR->getName().c_str());
+		namesLabel->setText("");
+		categoryCombo->lineEdit()->setText(category);
+		titleEdit->setText("");
+		typeCombo->setCurrentItem(CALCULATOR->defaultAssumptions()->type());
+		signCombo->setCurrentItem(CALCULATOR->defaultAssumptions()->sign());
+	}
+	signLabel->setEnabled(!v || (!v->isBuiltin() && v->assumptions()));
+	typeLabel->setEnabled(!v || (!v->isBuiltin() && v->assumptions()));
+	signCombo->setEnabled(!v || (!v->isBuiltin() && v->assumptions()));
+	typeCombo->setEnabled(!v || (!v->isBuiltin() && v->assumptions()));
+
+	if(exec() == QDialog::Accepted) {
+		v = edited_unknown;
+		edited_unknown = NULL;
+		return v;
+	}
+	edited_unknown = NULL;
+	return NULL;
+}
+
+void QalculateEditUnknownVariableDialog::editNames() {
+	if(!names_edit_dialog) {
+		names_edit_dialog = new QalculateEditNamesDialog(TYPE_VARIABLE, this);
+		names_edit_dialog->setNames(edited_unknown, nameEdit->text(), false);
+	} else {
+		names_edit_dialog->setNames(edited_unknown, nameEdit->text(), true);
+	}
+	names_edit_dialog->exec();
+	names_edit_dialog->setNamesLE(nameEdit, namesLabel);
+}
+
+void QalculateEditUnknownVariableDialog::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);
+	}
+}
+
+#include "qalculateeditunknownvariabledialog.moc"
+