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#include "list.hpp"
#include <MyGUI_Button.h>
#include <MyGUI_Gui.h>
#include <MyGUI_ImageBox.h>
#include <components/misc/strings/algorithm.hpp>
namespace Gui
{
MWList::MWList()
: mScrollView(nullptr)
, mClient(nullptr)
, mItemHeight(0)
{
}
void MWList::initialiseOverride()
{
Base::initialiseOverride();
assignWidget(mClient, "Client");
if (mClient == nullptr)
mClient = this;
mScrollView
= mClient->createWidgetReal<MyGUI::ScrollView>("MW_ScrollView", MyGUI::FloatCoord(0.0, 0.0, 1.0, 1.0),
MyGUI::Align::Top | MyGUI::Align::Left | MyGUI::Align::Stretch, getName() + "_ScrollView");
}
void MWList::addItem(std::string_view name)
{
mItems.emplace_back(name);
}
void MWList::addSeparator()
{
mItems.emplace_back(std::string{});
}
void MWList::adjustSize()
{
redraw();
}
void MWList::redraw(bool scrollbarShown)
{
constexpr int _scrollBarWidth = 20; // fetch this from skin?
const int scrollBarWidth = scrollbarShown ? _scrollBarWidth : 0;
constexpr int spacing = 3;
int viewPosition = -mScrollView->getViewOffset().top;
while (mScrollView->getChildCount())
{
MyGUI::Gui::getInstance().destroyWidget(mScrollView->getChildAt(0));
}
mItemHeight = 0;
int i = 0;
for (const auto& item : mItems)
{
if (!item.empty())
{
if (mListItemSkin.empty())
return;
MyGUI::Button* button = mScrollView->createWidget<MyGUI::Button>(mListItemSkin,
MyGUI::IntCoord(0, mItemHeight, mScrollView->getSize().width - scrollBarWidth - 2, 24),
MyGUI::Align::Left | MyGUI::Align::Top, getName() + "_item_" + item);
button->setCaption(item);
button->getSubWidgetText()->setWordWrap(true);
button->getSubWidgetText()->setTextAlign(MyGUI::Align::Left);
button->eventMouseWheel += MyGUI::newDelegate(this, &MWList::onMouseWheelMoved);
button->eventMouseButtonClick += MyGUI::newDelegate(this, &MWList::onItemSelected);
button->setNeedKeyFocus(true);
int height = button->getTextSize().height;
button->setSize(MyGUI::IntSize(button->getSize().width, height));
button->setUserData(i);
mItemHeight += height + spacing;
}
else
{
MyGUI::ImageBox* separator = mScrollView->createWidget<MyGUI::ImageBox>("MW_HLine",
MyGUI::IntCoord(2, mItemHeight, mScrollView->getWidth() - scrollBarWidth - 4, 18),
MyGUI::Align::Left | MyGUI::Align::Top | MyGUI::Align::HStretch);
separator->setNeedMouseFocus(false);
mItemHeight += 18 + spacing;
}
++i;
}
// Canvas size must be expressed with VScroll disabled, otherwise MyGUI would expand the scroll area when the
// scrollbar is hidden
mScrollView->setVisibleVScroll(false);
mScrollView->setCanvasSize(mClient->getSize().width, std::max(mItemHeight, mClient->getSize().height));
mScrollView->setVisibleVScroll(true);
if (!scrollbarShown && mItemHeight > mClient->getSize().height)
redraw(true);
int viewRange = mScrollView->getCanvasSize().height;
if (viewPosition > viewRange)
viewPosition = viewRange;
mScrollView->setViewOffset(MyGUI::IntPoint(0, -viewPosition));
}
void MWList::setPropertyOverride(std::string_view _key, std::string_view _value)
{
if (_key == "ListItemSkin")
mListItemSkin = _value;
else
Base::setPropertyOverride(_key, _value);
}
size_t MWList::getItemCount()
{
return mItems.size();
}
const std::string& MWList::getItemNameAt(size_t at)
{
assert(at < mItems.size() && "List item out of bounds");
return mItems[at];
}
void MWList::sort()
{
// A special case for separators is not needed for now
std::sort(mItems.begin(), mItems.end(), Misc::StringUtils::ciLess);
}
void MWList::removeItem(const std::string& name)
{
auto it = std::find(mItems.begin(), mItems.end(), name);
assert(it != mItems.end());
mItems.erase(it);
}
void MWList::clear()
{
mItems.clear();
}
void MWList::onMouseWheelMoved(MyGUI::Widget* _sender, int _rel)
{
// NB view offset is negative
if (mScrollView->getViewOffset().top + _rel * 0.3f > 0)
mScrollView->setViewOffset(MyGUI::IntPoint(0, 0));
else
mScrollView->setViewOffset(
MyGUI::IntPoint(0, static_cast<int>(mScrollView->getViewOffset().top + _rel * 0.3)));
}
void MWList::onItemSelected(MyGUI::Widget* _sender)
{
std::string name = _sender->castType<MyGUI::Button>()->getCaption();
int id = *_sender->getUserData<int>();
eventItemSelected(name, id);
eventWidgetSelected(_sender);
}
MyGUI::Button* MWList::getItemWidget(std::string_view name)
{
std::string search = getName() + "_item_";
search += name;
return mScrollView->findWidget(search)->castType<MyGUI::Button>();
}
void MWList::scrollToTop()
{
mScrollView->setViewOffset(MyGUI::IntPoint(0, 0));
}
}
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