Initial import of qalculate-kde 0.9.7

1 files changed, 205 insertions, 0 deletions

diff --git a/src/qalculateconvertunitsdialog.cpp b/src/qalculateconvertunitsdialog.cpp
new file mode 100644
index 0000000..f3ebb61
--- /dev/null
+++ b/src/qalculateconvertunitsdialog.cpp
@@ -0,0 +1,205 @@
+/***************************************************************************
+ *   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 "qalculateconvertunitsdialog.h"
+#include "qalculate_kde_utils.h"
+
+#include <qlabel.h>
+#include <klineedit.h>
+#include <klocale.h>
+#include <qhbox.h>
+#include <klistview.h>
+#include <klocale.h>
+#include <qvbox.h>
+#include <klistview.h>
+#include <kmessagebox.h>
+#include <qlayout.h>
+#include <qpushbutton.h>
+#include <qsplitter.h>
+
+extern tree_struct unit_cats;
+extern vector<void*> ia_units;
+extern PrintOptions printops;
+extern EvaluationOptions evalops;
+
+
+QalculateConvertUnitsDialog::QalculateConvertUnitsDialog(QWidget *parent, const char *name) : KDialogBase(parent, name, false, i18n("Convert"), Ok | Apply | Cancel | Details, Ok, true) {
+
+	setButtonText(Details, i18n("Selector"));
+
+	selected_category = "";
+	block_unit_convert = true;
+
+	QVBox *box = makeVBoxMainWidget();
+	new QLabel(i18n("Unit expression:"), box);
+	unitExpressionEdit = new KLineEdit(box);
+	
+	QVBox *box_d = new QVBox(this);
+	box_d->setSpacing(spacingHint());
+	new QWidget(box_d);
+	
+	QSplitter *splitter = new QSplitter(Qt::Vertical, box_d);
+	splitter->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+	
+	setDetailsWidget(box_d);
+
+	categoryView = new KListView(splitter);
+	categoryView->addColumn(i18n("Category"));
+	categoryView->setRootIsDecorated(false);
+	categoryView->setFullWidth(true);
+
+	unitView = new KListView(splitter);
+	unitView->addColumn(i18n("Unit"));
+	unitView->setRootIsDecorated(false);
+	unitView->setFullWidth(true);
+
+	unitExpressionEdit->setFocus();
+	
+	connect(unitView, SIGNAL(selectionChanged()), this, SLOT(unitSelected()));
+	connect(categoryView, SIGNAL(selectionChanged()), this, SLOT(categorySelected()));
+
+}
+
+QalculateConvertUnitsDialog::~QalculateConvertUnitsDialog() {}
+
+void QalculateConvertUnitsDialog::updateUnitTree() {
+	unitItems.clear();
+	categoryItems.clear();
+	categoryView->clear();
+	QListViewItem *i = new KListViewItem(categoryView, i18n("All")), *i2;
+	categoryItems[i] = i18n("All");
+	i->setOpen(true);
+	QString str;
+	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;
+	}
+	str = "";
+	i2 = i;
+	while(item) {
+		str += "/";
+		str += item->item.c_str();
+		i = new KListViewItem(i2, item->item.c_str());
+		i->setOpen(false);
+		categoryItems[i] = str;
+		if(str == selected_category) {
+			categoryView->ensureItemVisible(i);
+			categoryView->setSelected(i, true);
+		}
+		while(item && item->it == item->items.end()) {
+			int str_i = str.findRev("/");
+			if(str_i < 0) {
+				str = "";
+			} else {
+				str.truncate(str_i);
+			}
+			item = item->parent;
+			i = i->parent();
+			i2 = i;
+		}
+		if(item) {
+			item2 = &*item->it;
+			if(item->it == item->items.begin())
+				i2 = i;
+			++item->it;
+			item = item2;
+			item->it = item->items.begin();
+		}
+	}
+	if(!unit_cats.objects.empty()) {
+		//add "Uncategorized" category if there are units without category
+		i = new KListViewItem(categoryView, i18n("Uncategorized"));
+		categoryItems[i] = i18n("Uncategorized");
+		if(selected_category == i18n("Uncategorized")) {
+			categoryView->ensureItemVisible(i);
+			categoryView->setSelected(i, true);
+		}
+	}
+	if(!categoryView->selectedItem()) {
+		//if no category has been selected (previously selected has been renamed/deleted), select "All"
+		selected_category = i18n("All");
+		QListViewItemIterator it(categoryView);
+		if(it.current())
+			categoryView->setSelected(it.current(), true);
+	}
+}
+
+void QalculateConvertUnitsDialog::unitSelected() {
+	QListViewItem *selected = unitView->selectedItem();
+	if(selected) {
+		Unit *u = unitItems[selected];
+		if(!CALCULATOR->stillHasUnit(u)) {
+			KMessageBox::error(this, i18n("Unit does not exist anymore."));
+			emit unitsChanged();
+			return;
+		}
+		unitExpressionEdit->setText(u->print(false, printops.abbreviate_names, printops.use_unicode_signs, &can_display_unicode_string_function, (void*) unitExpressionEdit).c_str());
+		unitView->selectAll(false);
+		if(!block_unit_convert) actionButton(Apply)->animateClick();
+	}
+}
+
+void QalculateConvertUnitsDialog::addUnitTreeItem(Unit *u) {
+	QListViewItem *i = new KListViewItem(unitView, u->title(true).c_str());
+	unitItems[i] = u;
+}
+
+
+void QalculateConvertUnitsDialog::categorySelected() {
+	block_unit_convert = true;
+	QListViewItem *selected = categoryView->selectedItem();
+	bool no_cat = false, b_all = false;
+	unitView->clear();
+	unitItems.clear();
+	if(!selected) {
+		selected_category = "";
+		return;
+	}
+	selected_category = categoryItems[selected];
+	if(selected_category == i18n("All")) {
+		b_all = true;
+	} else if(selected_category == i18n("Uncategorized")) {
+		no_cat = true;
+	}
+	if(!b_all && !no_cat && selected_category[0] == '/') {
+		string str = selected_category.ascii();
+		str.erase(str.begin());
+		for(size_t i = 0; i < CALCULATOR->units.size(); i++) {
+			if(CALCULATOR->units[i]->isActive() && !CALCULATOR->units[i]->isHidden() && CALCULATOR->units[i]->category().substr(0, selected_category.length() - 1) == str) {
+				addUnitTreeItem(CALCULATOR->units[i]);
+			}
+		}
+	} else {
+		string str = selected_category.ascii();
+		for(size_t i = 0; i < CALCULATOR->units.size(); i++) {
+			if(CALCULATOR->units[i]->isActive() && !CALCULATOR->units[i]->isHidden() && (b_all || (no_cat && CALCULATOR->units[i]->category().empty()) || CALCULATOR->units[i]->category() == str)) {
+				addUnitTreeItem(CALCULATOR->units[i]);
+			}
+		}
+	}
+	block_unit_convert = false;
+}
+
+
+#include "qalculateconvertunitsdialog.moc"