diff options
Diffstat (limited to 'c/layout.h')
| -rw-r--r-- | c/layout.h | 37 |
1 files changed, 20 insertions, 17 deletions
@@ -21,18 +21,19 @@ struct Dragger bool HandleLButtonDown(); bool HandleSetCursor(); protected: - bool IsDown(); - bool IsDouble(); - virtual bool InDragArea(int x, int y); + bool IsDown() const; + bool IsDouble(const long time, const POINT& pt); + virtual bool InDragArea(int x, int y) const; /* Perform drag, resizing relevant windows. */ - virtual void Drag(int x, int y); + virtual void Drag(int x, int y) const; /* Reset dragger to automatic position. */ - virtual void Reset(); + virtual void Reset() const; /* Called after drag, when mouse button is released. */ - virtual void Done(); + virtual void Done() const; private: bool m_bActive = false; - long m_time = 0; + long m_time0 = 0; + POINT m_pt0 = {0, 0}; }; /* DlvDragger implements the draggable split between the data list @@ -41,24 +42,26 @@ private: struct DlvDragger : public Dragger { private: - bool InDragArea(int x, int y) override; - void Drag(int x, int y) override; - void Reset() override; - void Done() override; + bool InDragArea(int x, int y) const override; + void Drag(int x, int y) const override; + void Reset() const override; + void Done() const override; }; /* Below follows the implementation of the non-virtual member * functions of Dragger, on which derived objects rely. */ -inline bool Dragger::IsDouble() +inline bool Dragger::IsDouble(const long time, const POINT& pt) { - const long time = GetMessageTime(); - const bool dbl = time-m_time <= static_cast<long>(GetDoubleClickTime()); - m_time = time; + const bool dbl = time-m_time0 <= static_cast<long>(GetDoubleClickTime()) + && abs(pt.x-m_pt0.x) <= Metric<SM_CXDOUBLECLK> + && abs(pt.y-m_pt0.y) <= Metric<SM_CYDOUBLECLK>; + m_time0 = time; + m_pt0 = std::move(pt); return dbl; } -inline bool Dragger::IsDown() +inline bool Dragger::IsDown() const { return GetKeyState(VK_LBUTTON) & 0x8000; } @@ -70,7 +73,7 @@ inline bool Dragger::HandleLButtonDown() Require(GetRelativeCursorPos(g_hWnd, &pt)); if (!InDragArea(pt.x, pt.y)) return false; - if (IsDouble()) { + if (IsDouble(GetMessageTime(), pt)) { m_bActive = false; Reset(); } else |