70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
#pragma once
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#include <QObject>
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#include <QHBoxLayout>
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namespace YSG {
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template<typename T>
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class RollObject : QObject {
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public:
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explicit RollObject(QObject *parent = nullptr) : QObject(parent) {}
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explicit RollObject(QVector<T *> widgets, std::function<void(T *)> enterFunc,
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std::function<void(T *)> leaveFunc, QObject *parent) :
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mWidgets(std::move(widgets)), mEnterFunc(enterFunc), mLeaveFunc(leaveFunc), QObject(parent) {
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if (mEnterFunc) mEnterFunc(mWidgets[mIndex]);
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}
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int mIndex = 0;
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QVector<T *> mWidgets;
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std::function<void(T *)> mEnterFunc;
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std::function<void(T *)> mLeaveFunc;
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T *cur() {
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if (mWidgets.empty()) return nullptr;
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return mWidgets[mIndex];
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}
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void setCur(T *cur) {
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if (mWidgets.empty()) return;
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int index = mWidgets.indexOf(cur);
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if (mLeaveFunc) mLeaveFunc(mWidgets[mIndex]);
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mIndex = index;
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if (mEnterFunc) mEnterFunc(mWidgets[mIndex]);
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mWidgets[mIndex]->update();
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}
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void rollRight() {
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if (mWidgets.empty()) return;
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if (mLeaveFunc) mLeaveFunc(mWidgets[mIndex]);
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mWidgets[mIndex]->update();
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if (mWidgets.last() != mWidgets[mIndex]) {
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mIndex++;
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} else {
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mIndex = 0;
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}
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if (mEnterFunc) mEnterFunc(mWidgets[mIndex]);
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mWidgets[mIndex]->update();
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}
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void rollLeft() {
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if (mWidgets.empty()) return;
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if (mLeaveFunc) mLeaveFunc(mWidgets[mIndex]);
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mWidgets[mIndex]->update();
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if (mWidgets.first() != mWidgets[mIndex]) {
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mIndex--;
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} else {
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mIndex = mWidgets.size() - 1;
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}
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if (mEnterFunc) mEnterFunc(mWidgets[mIndex]);
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mWidgets[mIndex]->update();
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}
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QHBoxLayout *hBoxLayout(int space) {
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auto ret = new QHBoxLayout;
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ret->setMargin(0);
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ret->setSpacing(space);
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for (auto widget: mWidgets) {
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ret->addWidget(widget, 1);
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}
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return ret;
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}
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};
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}
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