84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
|
|
src/combobox.cpp -- simple combo box widget based on a popup button
|
|
|
|
NanoGUI was developed by Wenzel Jakob <wenzel@inf.ethz.ch>.
|
|
The widget drawing code is based on the NanoVG demo application
|
|
by Mikko Mononen.
|
|
|
|
All rights reserved. Use of this source code is governed by a
|
|
BSD-style license that can be found in the LICENSE.txt file.
|
|
*/
|
|
|
|
#include <nanogui/combobox.h>
|
|
#include <nanogui/layout.h>
|
|
#include <nanogui/serializer/core.h>
|
|
#include <cassert>
|
|
|
|
NAMESPACE_BEGIN(nanogui)
|
|
|
|
ComboBox::ComboBox(Widget *parent) : PopupButton(parent), mSelectedIndex(0) {
|
|
}
|
|
|
|
ComboBox::ComboBox(Widget *parent, const std::vector<std::string> &items)
|
|
: PopupButton(parent), mSelectedIndex(0) {
|
|
setItems(items);
|
|
}
|
|
|
|
ComboBox::ComboBox(Widget *parent, const std::vector<std::string> &items, const std::vector<std::string> &itemsShort)
|
|
: PopupButton(parent), mSelectedIndex(0) {
|
|
setItems(items, itemsShort);
|
|
}
|
|
|
|
void ComboBox::setSelectedIndex(int idx) {
|
|
if (mItemsShort.empty())
|
|
return;
|
|
const std::vector<Widget *> &children = popup()->children();
|
|
((Button *) children[mSelectedIndex])->setPushed(false);
|
|
((Button *) children[idx])->setPushed(true);
|
|
mSelectedIndex = idx;
|
|
setCaption(mItemsShort[idx]);
|
|
}
|
|
|
|
void ComboBox::setItems(const std::vector<std::string> &items, const std::vector<std::string> &itemsShort) {
|
|
assert(items.size() == itemsShort.size());
|
|
mItems = items;
|
|
mItemsShort = itemsShort;
|
|
if (mSelectedIndex < 0 || mSelectedIndex >= (int) items.size())
|
|
mSelectedIndex = 0;
|
|
while (mPopup->childCount() != 0)
|
|
mPopup->removeChild(mPopup->childCount()-1);
|
|
mPopup->setLayout(new GroupLayout(10));
|
|
int index = 0;
|
|
for (const auto &str: items) {
|
|
Button *button = new Button(mPopup, str);
|
|
button->setFlags(Button::RadioButton);
|
|
button->setCallback([&, index] {
|
|
mSelectedIndex = index;
|
|
setCaption(mItemsShort[index]);
|
|
setPushed(false);
|
|
popup()->setVisible(false);
|
|
if (mCallback)
|
|
mCallback(index);
|
|
});
|
|
index++;
|
|
}
|
|
setSelectedIndex(mSelectedIndex);
|
|
}
|
|
|
|
void ComboBox::save(Serializer &s) const {
|
|
Widget::save(s);
|
|
s.set("items", mItems);
|
|
s.set("itemsShort", mItemsShort);
|
|
s.set("selectedIndex", mSelectedIndex);
|
|
}
|
|
|
|
bool ComboBox::load(Serializer &s) {
|
|
if (!Widget::load(s)) return false;
|
|
if (!s.get("items", mItems)) return false;
|
|
if (!s.get("itemsShort", mItemsShort)) return false;
|
|
if (!s.get("selectedIndex", mSelectedIndex)) return false;
|
|
return true;
|
|
}
|
|
|
|
NAMESPACE_END(nanogui)
|