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#include "list.hpp"
#include <MyGUI_Gui.h>
#include <MyGUI_Button.h>
#include <MyGUI_ImageBox.h>
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(const std::string& name)
{
mItems.push_back(name);
}
void MWList::addSeparator()
{
mItems.emplace_back("");
}
void MWList::adjustSize()
{
redraw();
}
void MWList::redraw(bool scrollbarShown)
{
const int _scrollBarWidth = 20; // fetch this from skin?
const int scrollBarWidth = scrollbarShown ? _scrollBarWidth : 0;
const int spacing = 3;
int viewPosition = -mScrollView->getViewOffset().top;
while (mScrollView->getChildCount())
{
MyGUI::Gui::getInstance().destroyWidget(mScrollView->getChildAt(0));
}
mItemHeight = 0;
int i=0;
for (std::vector<std::string>::const_iterator it=mItems.begin();
it!=mItems.end(); ++it)
{
if (*it != "")
{
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_" + (*it));
button->setCaption((*it));
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(const std::string &_key, const std::string &_value)
{
if (_key == "ListItemSkin")
mListItemSkin = _value;
else
Base::setPropertyOverride(_key, _value);
}
unsigned int MWList::getItemCount()
{
return static_cast<unsigned int>(mItems.size());
}
std::string MWList::getItemNameAt(unsigned int at)
{
assert(at < mItems.size() && "List item out of bounds");
return mItems[at];
}
void MWList::removeItem(const std::string& name)
{
assert( std::find(mItems.begin(), mItems.end(), name) != mItems.end() );
mItems.erase( std::find(mItems.begin(), mItems.end(), name) );
}
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(const std::string& name)
{
return mScrollView->findWidget (getName() + "_item_" + name)->castType<MyGUI::Button>();
}
void MWList::scrollToTop()
{
mScrollView->setViewOffset(MyGUI::IntPoint(0, 0));
}
}
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