初版-带一个进度条

sources/TabLayout.cpp

@@ -0,0 +1,175 @@
+#include "TabLayout.h"
+
+namespace ezui {
+	TabLayout::TabLayout(Object* parentObject) :Control(parentObject)
+	{
+		Init();
+	}
+	void TabLayout::Init()
+	{
+		m_timer = new Timer(this);
+		m_timer->Tick = [this](Timer* sender) {
+
+			HWND hWnd = this->Hwnd();
+			BeginInvoke([this, hWnd, sender]() {
+				if (!::IsWindow(hWnd))return;
+
+				m_stepAcc += m_stepPerFrame;
+				int stepMove = m_stepAcc;
+				m_stepAcc -= stepMove;
+				m_nowOffset += stepMove;
+
+				// 检查是否到达终点
+				if ((m_offset > 0 && m_nowOffset >= m_offset) ||
+					(m_offset < 0 && m_nowOffset <= m_offset)) {
+					m_nowOffset = m_offset;
+					sender->Stop();
+					this->Sort(); // 对齐页面
+					this->Invalidate();
+					return;
+				}
+				for (size_t i = 0; i < GetControls().size(); ++i) {
+					Control* ctl = GetControls()[i];
+					if (m_dlideDirection == SlideDirection::Horizontal) {
+						ctl->SetRect(Rect(m_initial[i] - m_nowOffset, 0, Width(), Height()));
+					}
+					else {
+						ctl->SetRect(Rect(0, m_initial[i] - m_nowOffset, Width(), Height()));
+					}
+				}
+				this->Invalidate();
+				});
+
+			};
+	}
+	TabLayout::~TabLayout()
+	{
+	}
+	void TabLayout::Remove(Control* ctl, bool freeCtl)
+	{
+		size_t index = this->IndexOf(ctl);
+		__super::Remove(ctl, freeCtl);
+		int newIndex = this->GetControls().size() - 1;
+		newIndex = newIndex < 0 ? 0 : newIndex;
+		this->SetPageIndex(newIndex);
+		TryPendLayout();
+	}
+	void TabLayout::Sort()
+	{
+		int pos = 0;
+		for (auto itor = GetControls().begin(); itor != GetControls().end(); ++itor)
+		{
+			if (m_dlideDirection == SlideDirection::Horizontal) {
+				int x = Width() * (pos - m_pageIndex);//子控件索引-当前所在页索引
+				(*itor)->SetRect(Rect(x, 0, Width(), Height()));
+			}
+			else {
+				int y = Height() * (pos - m_pageIndex);//子控件索引-当前所在页索引
+				(*itor)->SetRect(Rect(0, y, Width(), Height()));
+			}
+			(*itor)->SetVisible(true);
+			++pos;
+		}
+	}
+	void TabLayout::SetAttribute(const UIString& key, const UIString& value) {
+		__super::SetAttribute(key, value);
+		if (key == "tabindex") {
+			this->SetPageIndex(std::atoi(value.c_str()));
+		}
+	}
+	void TabLayout::OnLayout()
+	{
+		Sort();
+		this->EndLayout();
+	}
+
+	Control* TabLayout::Add(Control* childCtl)
+	{
+		auto ret = __super::Add(childCtl);
+		this->TryPendLayout();
+		return ret;
+	}
+
+	void TabLayout::SetPageIndex(int index)
+	{
+		this->m_pageIndex = index;
+		this->TryPendLayout();
+	}
+
+
+	void TabLayout::SlideToPage(int index, SlideDirection dlideDirection, int durationMs, int fps)
+	{
+		//滑动方向
+		m_dlideDirection = dlideDirection;
+
+		Sort();//先直接归位
+		int offsetTotal = (index - m_pageIndex) * (m_dlideDirection == SlideDirection::Horizontal ? Width() : Height());
+		if (offsetTotal == 0) {
+			return;
+		}
+
+		// 记录初始坐标
+		int controlCount = GetControls().size();
+
+		m_initial.clear();
+		m_initial.resize(controlCount);
+		for (int i = 0; i < controlCount; ++i) {
+			if (m_dlideDirection == SlideDirection::Horizontal) {
+				m_initial[i] = GetControls()[i]->X();
+			}
+			else {
+				m_initial[i] = GetControls()[i]->Y();
+			}
+		}
+
+		m_nowOffset = 0;
+		m_offset = offsetTotal;
+		m_pageIndex = index;
+
+		int FRAME_INTERVAL_MS = 1000 / fps;
+		int totalFrames = durationMs / FRAME_INTERVAL_MS;
+		if (totalFrames <= 0) {
+			totalFrames = 1;
+		}
+
+		m_stepPerFrame = offsetTotal * 1.0f / totalFrames;
+		m_timer->Interval = FRAME_INTERVAL_MS;
+		m_timer->Start();
+	}
+
+
+
+	void TabLayout::SetPage(Control* ctl)
+	{
+#ifdef _DEBUG
+		ASSERT(ctl->Parent == this);
+#endif // _DEBUG
+		this->m_pageIndex = this->IndexOf(ctl);
+		this->TryPendLayout();
+	}
+
+	Control* TabLayout::GetPage() {
+		int pos = 0;
+		for (auto& it : GetControls()) {
+			if (pos == this->m_pageIndex) {
+				return it;
+			}
+			++pos;
+		}
+		return NULL;
+	}
+	int TabLayout::GetPageIndex()
+	{
+		return m_pageIndex;
+	}
+
+	void TabLayout::OnChildPaint(PaintEventArgs& args)
+	{
+		ViewControls.clear();
+		Control* currPage = this->GetPage();
+		if (currPage) {//仅绘制当前页
+			ViewControls.push_back(currPage);
+			currPage->SendEvent(args);
+		}
+	}
+};