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#ifndef LAYOUT_H
#define LAYOUT_H
#include <windows.h>
#include "common.h"
#include "datalistview.h"
void UpdateLayout(int w = 0, int h = 0);
struct Dragger
{
bool HandleDown();
bool HandleMove();
private:
bool InDragArea(int x, int y);
bool IsDown();
bool IsDouble();
void Drag(int x, int y);
bool m_bActive = false;
long m_time = 0;
};
inline bool Dragger::IsDouble()
{
const long time = GetMessageTime();
const bool dbl = time-m_time <= static_cast<long>(GetDoubleClickTime());
m_time = time;
return dbl;
}
inline bool Dragger::IsDown()
{
return GetKeyState(VK_LBUTTON) & 0x8000;
}
inline bool Dragger::HandleDown()
{
extern HWND g_hWnd;
POINT pt;
require(GetRelativeCursorPos(g_hWnd, &pt));
if (!InDragArea(pt.x, pt.y)) return false;
if (IsDouble()) {
extern DataListView* g_dlv;
g_dlv->SetHeight(0);
UpdateLayout();
return false;
} else
return m_bActive = true;
}
inline bool Dragger::HandleMove()
{
extern HWND g_hWnd;
POINT pt;
require(GetRelativeCursorPos(g_hWnd, &pt));
extern HCURSOR g_hcSizeNs;
bool r = true;
if (InDragArea(pt.x, pt.y))
SetCursor(g_hcSizeNs);
else
r = false;
if (m_bActive)
Drag(pt.x, pt.y);
if (!IsDown())
m_bActive = false;
return r;
}
#endif
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