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qalculate-tde/src/qalculateeditunitdialog.cpp

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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 "qalculateeditunitdialog.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 <tqgroupbox.h>
#include <tqspinbox.h>
#include <tqlayout.h>
#include <tdeapplication.h>
extern PrintOptions printops;
extern EvaluationOptions evalops;
extern tree_struct unit_cats;
QalculateEditUnitDialog::QalculateEditUnitDialog(TQWidget *parent, const char *name) : KDialogBase(parent, name, true, i18n("Edit Unit"), Ok | Cancel | Help, Ok, true) {
names_edit_dialog = NULL;
edited_unit = NULL;
TQVBox *box = makeVBoxMainWidget();
grid1 = new TQGroupBox(1, TQt::Horizontal, i18n("Name"), box);
grid1->setInsideMargin(spacingHint());
grid1->setInsideSpacing(spacingHint());
TQWidget *widget = new TQWidget(grid1);
TQGridLayout *grid = new TQGridLayout(widget, 1, 1, 0, spacingHint());
grid->addWidget(new TQLabel(i18n("Name:"), widget), 0, 0);
nameEdit = new KLineEdit(widget);
grid->addWidget(nameEdit, 0, 1);
TQHBoxLayout *hbox = new TQHBoxLayout(0, 0, spacingHint());
grid->addMultiCellLayout(hbox, 1, 1, 0, 1);
namesLabel = new TQLabel(widget);
namesLabel->setAlignment(TQt::AlignRight);
namesLabel->setSizePolicy(TQSizePolicy::Expanding, TQSizePolicy::Preferred);
hbox->addWidget(namesLabel);
namesButton = new TQPushButton(i18n("Names Details"), widget);
hbox->addWidget(namesButton);
grid->addWidget(new TQLabel(i18n("Descriptive name:"), widget), 2, 0);
titleEdit = new KLineEdit(widget);
grid->addWidget(titleEdit, 2, 1);
hbox = new TQHBoxLayout(0, 0, spacingHint());
grid->addMultiCellLayout(hbox, 3, 3, 0, 1);
hbox->addItem(new TQSpacerItem(0, 0, TQSizePolicy::Expanding, TQSizePolicy::Minimum));
hideButton = new TQCheckBox(i18n("Hide unit"), widget);
hbox->addWidget(hideButton);
grid2 = new TQGroupBox(1, TQt::Horizontal, i18n("Type"), box);
grid2->setInsideMargin(spacingHint());
grid2->setInsideSpacing(spacingHint());
widget = new TQWidget(grid2);
grid = new TQGridLayout(widget, 1, 1, 0, spacingHint());
grid->addWidget(new TQLabel(i18n("Class:"), widget), 0, 0);
classCombo = new KComboBox(widget);
grid->addWidget(classCombo, 0, 1);
classCombo->insertItem(i18n("Base Unit"));
classCombo->insertItem(i18n("Alias"));
classCombo->insertItem(i18n("Composite Unit"));
classCombo->setMaximumWidth(250);
grid->addWidget(new TQLabel(i18n("Category:"), widget), 1, 0);
categoryCombo = new KComboBox(widget);
grid->addWidget(categoryCombo, 1, 1);
categoryCombo->setMaximumWidth(250);
categoryCombo->setEditable(true);
grid->addWidget(new TQLabel(i18n("System:"), widget), 2, 0);
systemCombo = new KComboBox(widget);
grid->addWidget(systemCombo, 2, 1);
systemCombo->insertItem(i18n("SI"));
systemCombo->insertItem(i18n("CGS"));
systemCombo->insertItem(i18n("Imperial"));
systemCombo->insertItem(i18n("US Survey"));
systemCombo->setMaximumWidth(250);
systemCombo->setEditable(true);
grid3 = new TQGroupBox(1, TQt::Horizontal, i18n("Relation"), box);
grid3->setInsideMargin(spacingHint());
grid3->setInsideSpacing(spacingHint());
widget = new TQWidget(grid3);
grid = new TQGridLayout(widget, 1, 1, 0, spacingHint());
grid->addWidget(new TQLabel(i18n("Base unit:"), widget), 0, 0);
baseEdit = new KLineEdit(widget);
grid->addWidget(baseEdit, 0, 1);
exponentLabel = new TQLabel(i18n("Exponent:"), widget);
grid->addWidget(exponentLabel, 1, 0);
exponentBox = new TQSpinBox(-9, 9, 1, widget);
grid->addWidget(exponentBox, 1, 1);
relationLabel = new TQLabel(i18n("Relation:"), widget);
grid->addWidget(relationLabel, 2, 0);
relationEdit = new KLineEdit(widget);
grid->addWidget(relationEdit, 2, 1);
hbox = new TQHBoxLayout(0, 0, spacingHint());
grid->addMultiCellLayout(hbox, 3, 3, 0, 1);
hbox->addItem(new TQSpacerItem(0, 0, TQSizePolicy::Expanding, TQSizePolicy::Minimum));
relationExactButton = new TQCheckBox(i18n("Relation is exact"), widget);
hbox->addWidget(relationExactButton);
inverseRelationLabel = new TQLabel(i18n("Inverse relation:"), widget);
grid->addWidget(inverseRelationLabel, 4, 0);
inverseRelationEdit = new KLineEdit(widget);
grid->addWidget(inverseRelationEdit, 4, 1);
connect(namesButton, SIGNAL(clicked()), this, SLOT(editNames()));
connect(classCombo, SIGNAL(activated(int)), this, SLOT(classChanged(int)));
connect(nameEdit, SIGNAL(textChanged(const TQString&)), this, SLOT(nameChanged(const TQString&)));
}
QalculateEditUnitDialog::~QalculateEditUnitDialog() {}
void QalculateEditUnitDialog::slotHelp() {
TDEApplication::kApplication()->invokeHelp("qalculate-unit-creation");
}
void QalculateEditUnitDialog::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;
}
//unit with the same name exists -- overwrite or open dialog again
if((!edited_unit || !edited_unit->hasName(str)) && (!names_edit_dialog || names_edit_dialog->isEmpty()) && CALCULATOR->unitNameTaken(str, edited_unit) && KMessageBox::questionYesNo(this, i18n("A variable or unit with the same name already exists.\nDo you want to overwrite it?")) == KMessageBox::No) {
nameEdit->setFocus();
return;
}
Unit *u = edited_unit;
bool add_unit = false;
if(u) {
//edited an existing unit -- update unit
u->setLocal(true);
int i1 = classCombo->currentItem();
switch(u->subtype()) {
case SUBTYPE_ALIAS_UNIT: {
if(i1 != 1) {
u->destroy();
u = NULL;
break;
}
if(!u->isBuiltin()) {
AliasUnit *au = (AliasUnit*) u;
Unit *bu = CALCULATOR->getUnit(baseEdit->text().ascii());
if(!bu) bu = CALCULATOR->getCompositeUnit(baseEdit->text().ascii());
if(!bu) {
baseEdit->setFocus();
KMessageBox::error(this, i18n("Base unit does not exist"));
return;
}
au->setBaseUnit(bu);
au->setExpression(CALCULATOR->unlocalizeExpression(relationEdit->text().ascii(), evalops.parse_options));
au->setInverseExpression(CALCULATOR->unlocalizeExpression(inverseRelationEdit->text().ascii(), evalops.parse_options));
au->setExponent(exponentBox->value());
au->setApproximate(!relationExactButton->isChecked());
}
break;
}
case SUBTYPE_COMPOSITE_UNIT: {
if(i1 != 2) {
u->destroy();
u = NULL;
break;
}
if(!u->isBuiltin()) {
((CompositeUnit*) u)->setBaseExpression(baseEdit->text().ascii());
}
break;
}
case SUBTYPE_BASE_UNIT: {
if(i1 != 0) {
u->destroy();
u = NULL;
break;
}
break;
}
}
if(u) {
u->setTitle(titleEdit->text().ascii());
u->setCategory(categoryCombo->lineEdit()->text().ascii());
}
}
if(!u) {
//new unit
switch(classCombo->currentItem()) {
case 1: {
Unit *bu = CALCULATOR->getUnit(baseEdit->text().ascii());
if(!bu) bu = CALCULATOR->getCompositeUnit(baseEdit->text().ascii());
if(!bu) {
baseEdit->setFocus();
KMessageBox::error(this, i18n("Base unit does not exist"));
return;
}
u = new AliasUnit(categoryCombo->lineEdit()->text().ascii(), "", "", "", titleEdit->text().ascii(), bu, CALCULATOR->unlocalizeExpression(relationEdit->text().ascii(), evalops.parse_options), exponentBox->value(), CALCULATOR->unlocalizeExpression(inverseRelationEdit->text().ascii(), evalops.parse_options), true);
((AliasUnit*) u)->setApproximate(!relationExactButton->isChecked());
break;
}
case 2: {
CompositeUnit *cu = new CompositeUnit(categoryCombo->lineEdit()->text().ascii(), "", titleEdit->text().ascii(), baseEdit->text().ascii(), true);
u = cu;
break;
}
default: {
u = new Unit(categoryCombo->lineEdit()->text().ascii(), "", "", "", titleEdit->text().ascii(), true);
break;
}
}
add_unit = true;
}
if(u) {
u->setHidden(hideButton->isChecked());
if(!u->isBuiltin()) {
u->setSystem(systemCombo->lineEdit()->text().ascii());
if(names_edit_dialog) {
names_edit_dialog->saveNames(u, str.c_str());
} else {
if(u->countNames() == 0) {
ExpressionName ename(str);
ename.reference = true;
u->setName(ename, 1);
} else {
u->setName(str, 1);
}
}
}
if(add_unit) {
CALCULATOR->addUnit(u);
}
}
edited_unit = u;
accept();
}
void QalculateEditUnitDialog::classChanged(int i) {
exponentBox->setEnabled(i == 1);
relationEdit->setEnabled(i == 1);
relationExactButton->setEnabled(i == 1);
inverseRelationEdit->setEnabled(i == 1);
exponentLabel->setEnabled(i == 1);
relationLabel->setEnabled(i == 1);
inverseRelationLabel->setEnabled(i == 1);
grid3->setEnabled(i != 0);
}
Unit *QalculateEditUnitDialog::editUnit(TQString category, Unit *u) {
nameEdit->setFocus();
if(names_edit_dialog) {
delete names_edit_dialog;
names_edit_dialog = NULL;
}
edited_unit = u;
if(u) {
if(u->isLocal())
setCaption(i18n("Edit Unit"));
else
setCaption(i18n("Edit Unit (global)"));
} else {
setCaption(i18n("New Unit"));
}
//TQStringList cats;
TQString catstr;
categoryCombo->clear();
tree_struct *item, *item2;
unit_cats.it = unit_cats.items.begin();
if(unit_cats.it != unit_cats.items.end()) {
item = &*unit_cats.it;
++unit_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();
}
}
categoryCombo->lineEdit()->setText(category);
//clear entries
nameEdit->clear();
titleEdit->clear();
baseEdit->clear();
relationEdit->clear();
inverseRelationEdit->clear();
systemCombo->lineEdit()->clear();
exponentBox->setValue(1);
namesLabel->clear();
actionButton(Ok)->setEnabled(true);
nameEdit->setReadOnly(u && u->isBuiltin());
relationEdit->setReadOnly(u && u->isBuiltin());
inverseRelationEdit->setReadOnly(u && u->isBuiltin());
systemCombo->setEnabled(!u || !u->isBuiltin());
classCombo->setEnabled(!u || !u->isBuiltin());
baseEdit->setReadOnly(u && u->isBuiltin());
if(u) {
//fill in original parameters
if(u->subtype() == SUBTYPE_BASE_UNIT) {
classCombo->setCurrentItem(0);
classChanged(0);
} else if(u->subtype() == SUBTYPE_ALIAS_UNIT) {
classCombo->setCurrentItem(1);
classChanged(1);
} else if(u->subtype() == SUBTYPE_COMPOSITE_UNIT) {
classCombo->setCurrentItem(2);
classChanged(2);
}
set_name_label_and_entry(u, nameEdit, namesLabel);
systemCombo->lineEdit()->setText(u->system().c_str());
hideButton->setChecked(u->isHidden());
categoryCombo->lineEdit()->setText(u->category().c_str());
titleEdit->setText(u->title(false).c_str());
switch(u->subtype()) {
case SUBTYPE_ALIAS_UNIT: {
AliasUnit *au = (AliasUnit*) u;
baseEdit->setText(((CompositeUnit*) (au->firstBaseUnit()))->preferredDisplayName(printops.abbreviate_names, true, false, false, &can_display_unicode_string_function, (void*) baseEdit).name.c_str());
exponentBox->setValue(au->firstBaseExponent());
relationEdit->setText(CALCULATOR->localizeExpression(au->expression()).c_str());
inverseRelationEdit->setText(CALCULATOR->localizeExpression(au->inverseExpression()).c_str());
relationExactButton->setChecked(!au->isApproximate());
relationEdit->setEnabled(true);
inverseRelationEdit->setEnabled(true);
relationExactButton->setEnabled(!u->isBuiltin());
exponentBox->setEnabled(!u->isBuiltin());
baseEdit->setEnabled(true);
break;
}
case SUBTYPE_COMPOSITE_UNIT: {
baseEdit->setText(((CompositeUnit*) u)->print(false, printops.abbreviate_names, true, &can_display_unicode_string_function, (void*) baseEdit).c_str());
baseEdit->setEnabled(true);
}
}
} else {
//default values
hideButton->setChecked(false);
relationExactButton->setChecked(true);
relationEdit->setText("1");
classCombo->setCurrentItem(1);
classChanged(1);
}
if(exec() == TQDialog::Accepted) {
u = edited_unit;
edited_unit = NULL;
return u;
}
edited_unit = NULL;
return NULL;
}
void QalculateEditUnitDialog::editNames() {
if(!names_edit_dialog) {
names_edit_dialog = new QalculateEditNamesDialog(TYPE_UNIT, this);
names_edit_dialog->setNames(edited_unit, nameEdit->text(), false);
} else {
names_edit_dialog->setNames(edited_unit, nameEdit->text(), true);
}
names_edit_dialog->exec();
names_edit_dialog->setNamesLE(nameEdit, namesLabel);
}
void QalculateEditUnitDialog::nameChanged(const TQString &name) {
if(name.isNull()) return;
if(!CALCULATOR->unitNameIsValid(name.ascii())) {
nameEdit->blockSignals(true);
nameEdit->setText(CALCULATOR->convertToValidUnitName(name.ascii()).c_str());
nameEdit->blockSignals(false);
}
}
#include "qalculateeditunitdialog.moc"
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