a
This commit is contained in:
coco
@@ -0,0 +1,234 @@
|
||||
#include "stdafx.h"
|
||||
#include "DragList.h"
|
||||
vector <RECT> CDragList::ItemRect;
|
||||
int CDragList::m_ActiveItem = SELECT_NONE;
|
||||
bool CDragList::m_IsOut = true;
|
||||
int CDragList::m_SelectItem = SELECT_NONE;
|
||||
bool CDragList::m_IsInFilstPart = false;
|
||||
bool CDragList::m_IsInSecondPart = false;
|
||||
POINT CDragList::MouseDownPoint = { -10, -10 };
|
||||
|
||||
void CDragList::BeginDrag(HWND ListWnd, POINT point)
|
||||
{
|
||||
::SetCapture(ListWnd);
|
||||
|
||||
//设置焦点
|
||||
if (::GetFocus() != ListWnd)
|
||||
::SetFocus(ListWnd);
|
||||
|
||||
//enum to find out if select one
|
||||
int count = (int)::SendMessage(ListWnd, LVM_GETITEMCOUNT, 0, 0);
|
||||
int state;
|
||||
CString strLog;
|
||||
for (int i = 0; i < count; i++)
|
||||
{
|
||||
state = (int)::SendMessage(ListWnd, LVM_GETITEMSTATE, i, (LPARAM)LVIS_SELECTED);
|
||||
if (state | LVIS_SELECTED == 1)
|
||||
{
|
||||
m_SelectItem = i;
|
||||
m_ActiveItem = i;
|
||||
m_IsOut = true;
|
||||
MouseDownPoint = point;
|
||||
strLog.Format(_T("遍历当前选中%d行"), i);
|
||||
OutputDebugString(strLog);
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
void CDragList::EndDrag(HWND ListWnd, POINT point)
|
||||
{
|
||||
if (m_ActiveItem != SELECT_NONE)
|
||||
{
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
if (m_ActiveItem != m_SelectItem && m_SelectItem != SELECT_NONE)
|
||||
{
|
||||
//最后的Item的处理
|
||||
//if (m_IsInSecondPart == true)
|
||||
// m_ActiveItem += 1;
|
||||
|
||||
::PostMessage(::GetParent(ListWnd), WM_MOVEITEM, m_SelectItem, m_ActiveItem);
|
||||
}
|
||||
}
|
||||
|
||||
::ReleaseCapture();
|
||||
m_SelectItem = SELECT_NONE;
|
||||
}
|
||||
void CDragList::Dragging(HWND ListWnd, POINT point)
|
||||
{
|
||||
//当鼠标按下后没有移动就弹起时，ClistCtrl会发送一个click消息，
|
||||
//并且会有一个WM_MOUSEMOVE的消息（却没有WM_LBUTTONDUP的消息）
|
||||
//我们这里简单的返回
|
||||
if (point.x == MouseDownPoint.x && point.y == MouseDownPoint.y)
|
||||
{
|
||||
::ReleaseCapture();
|
||||
m_SelectItem = SELECT_NONE;
|
||||
return;
|
||||
}
|
||||
//get the rect of ListCtrl
|
||||
RECT rect;
|
||||
::GetWindowRect(ListWnd, &rect);
|
||||
rect.top += 24; //去掉头表的高度
|
||||
POINT MousePoint;
|
||||
::GetCursorPos(&MousePoint);
|
||||
|
||||
//mouse is not in the ListCtrl
|
||||
if (!::PtInRect(&rect, MousePoint))
|
||||
{
|
||||
m_IsOut = true;
|
||||
if (m_ActiveItem != SELECT_NONE)
|
||||
{
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
m_ActiveItem = SELECT_NONE;
|
||||
}
|
||||
|
||||
//::SetCursor(LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_CURSOR2)));
|
||||
|
||||
//超过窗体上边，向上滚动
|
||||
if (MousePoint.y<rect.top)
|
||||
{
|
||||
::SendMessage(ListWnd, WM_KEYDOWN, VK_UP, 0);
|
||||
::SendMessage(ListWnd, WM_KEYUP, VK_UP, 0);
|
||||
}
|
||||
//超过窗体下边，向下滚动
|
||||
else if (MousePoint.y>rect.bottom)
|
||||
{
|
||||
::SendMessage(ListWnd, WM_KEYDOWN, VK_DOWN, 0);
|
||||
::SendMessage(ListWnd, WM_KEYUP, VK_DOWN, 0);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
//if is outside the widnow,re receive all the item rect again
|
||||
if (m_IsOut)
|
||||
{
|
||||
m_IsOut = false;
|
||||
m_IsInFilstPart = false;
|
||||
m_IsInSecondPart = false;
|
||||
//get the count of listctrl
|
||||
int count = (int)::SendMessage(ListWnd, LVM_GETITEMCOUNT, 0, 0);
|
||||
//initial data
|
||||
ItemRect.clear();
|
||||
ItemRect.resize(count);
|
||||
|
||||
for (int i = 0; i < count; i++)
|
||||
{
|
||||
//save item rect
|
||||
ItemRect[i].left = LVIR_SELECTBOUNDS;
|
||||
::SendMessage(ListWnd, LVM_GETITEMRECT, i, (LPARAM)&ItemRect[i]);
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//begin find item
|
||||
int i;
|
||||
for (i = 0; i < ItemRect.size() && !::PtInRect(&ItemRect[i], point); i++); //注意这行的分号
|
||||
CString strLog;
|
||||
strLog.Format(_T("CDragList::Dragging() 查找当前的点在哪一行,%d行，点x=%d,y=%d , ItemRect[i] left=%d,top=%d,right=%d,bottom=%d\n"), i, point.x, point.y, ItemRect[i].left, ItemRect[i].top, ItemRect[i].right, ItemRect[i].bottom);
|
||||
OutputDebugString(strLog);
|
||||
//if found item(即鼠标在List里面)
|
||||
if (i != ItemRect.size())
|
||||
{
|
||||
//改变鼠标形状
|
||||
//::SetCursor(LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_MOVEITEMCUR)));
|
||||
|
||||
//在最后一项移动
|
||||
if (i == ItemRect.size() - 1)
|
||||
{
|
||||
//是否第一次移入此Item
|
||||
if (m_ActiveItem != i)
|
||||
{
|
||||
//假如需要,更新原来的ItemRect
|
||||
if (m_ActiveItem != SELECT_NONE)
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
|
||||
//保存当前焦点的按钮索引
|
||||
m_ActiveItem = i;
|
||||
}
|
||||
|
||||
//在最后一个item的上半部分上移动
|
||||
if (point.y < (ItemRect[m_ActiveItem].top + ItemRect[m_ActiveItem].bottom) / 2)
|
||||
{
|
||||
//第一次进入最后一个item的前半部分
|
||||
if (m_IsInFilstPart == false)
|
||||
{
|
||||
m_IsInFilstPart = true;
|
||||
m_IsInSecondPart = false;
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
::UpdateWindow(ListWnd);
|
||||
//DrawLine(ListWnd, ItemRect[m_ActiveItem].left + 2, ItemRect[m_ActiveItem].top + 2,
|
||||
// ItemRect[m_ActiveItem].right - 2, ItemRect[m_ActiveItem].top + 2);
|
||||
}
|
||||
}
|
||||
|
||||
//在最后一个item的后半部分上移动
|
||||
else
|
||||
{
|
||||
//第一次进入最后一个item的后半部分
|
||||
if (m_IsInSecondPart == false)
|
||||
{
|
||||
m_IsInSecondPart = true;
|
||||
m_IsInFilstPart = false;
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
::UpdateWindow(ListWnd);
|
||||
//DrawLine(ListWnd, ItemRect[m_ActiveItem].left + 2, ItemRect[m_ActiveItem].bottom - 2,
|
||||
// ItemRect[m_ActiveItem].right - 2, ItemRect[m_ActiveItem].bottom - 2);
|
||||
}
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
//是否第一次移入此Item
|
||||
if (m_ActiveItem != i)
|
||||
{
|
||||
m_IsInFilstPart = false;
|
||||
|
||||
//假如需要,更新原来的ItemRect
|
||||
if (m_ActiveItem != SELECT_NONE)
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
|
||||
//保存当前焦点的按钮索引
|
||||
m_ActiveItem = i;
|
||||
|
||||
//DrawLine(ListWnd, ItemRect[m_ActiveItem].left + 4, ItemRect[m_ActiveItem].top + 2,
|
||||
// ItemRect[m_ActiveItem].right - 4, ItemRect[m_ActiveItem].top + 2);
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
//if not found item(鼠标不在List里面)
|
||||
else
|
||||
{
|
||||
//假如第一次移出List
|
||||
if (m_ActiveItem != SELECT_NONE)
|
||||
{
|
||||
//重绘原来的按钮
|
||||
::InvalidateRect(ListWnd, &ItemRect[m_ActiveItem], false);
|
||||
|
||||
//表示鼠标在List外
|
||||
m_ActiveItem = SELECT_NONE;
|
||||
}
|
||||
|
||||
m_IsInFilstPart = false;
|
||||
m_IsInSecondPart = false;
|
||||
|
||||
//改变鼠标形状
|
||||
//::SetCursor(LoadCursor(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDC_CURSOR2)));
|
||||
}
|
||||
}
|
||||
/* void CDragList::DrawLine(HWND hWnd, int BeginX, int BeginY, int EndX, int EndY)
|
||||
{
|
||||
HDC hdc = ::GetDC(hWnd);
|
||||
HPEN Pen = ::CreatePen(PS_SOLID, 4, RGB(0, 0, 0));
|
||||
HPEN OldPen = (HPEN)SelectObject(hdc, Pen);
|
||||
HBRUSH OldBrush = (HBRUSH)::SelectObject(hdc, (HBRUSH)GetStockObject(NULL_BRUSH));
|
||||
|
||||
MoveToEx(hdc, BeginX, BeginY, NULL);
|
||||
LineTo(hdc, EndX, EndY);
|
||||
|
||||
::SelectObject(hdc, OldBrush);
|
||||
::SelectObject(hdc, OldPen);
|
||||
::DeleteObject(Pen);
|
||||
::ReleaseDC(hWnd, hdc);
|
||||
}*/
|
||||
Reference in New Issue
Block a user