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Added extra mouse buttons to Areas on Windows.

This commit is contained in:
Pietro Gagliardi 2014-04-29 16:26:29 -04:00
parent a98072a23b
commit 2528fa9cfd
2 changed files with 21 additions and 3 deletions
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4
area.go
View File

@ -72,7 +72,9 @@ type AreaHandler interface {
// MouseEvent contains all the information for a mous event sent by Area.Mouse.
// Mouse button IDs start at 1, with 1 being the left mouse button, 2 being the middle mouse button, and 3 being the right mouse button.
// If additional buttons are supported, they will be returned with 4 being the first additional button. The association between button numbers and physical buttons are system-defined.
// If additional buttons are supported, they will be returned with 4 being the first additional button.
// The association between button numbers and physical buttons are system-defined.
// For example, on Windows, buttons 4 and 5 are mapped to what are internally referred to as "XBUTTON1" and "XBUTTON2", which often correspond to the dedicated back/forward navigation buttons on the sides of many mice.
// (TODO find out if there's a way to query available button count)
type MouseEvent struct {
// Pos is the position of the mouse in the Area at the time of the event.

20
area_windows.go
View File

@ -483,7 +483,12 @@ func areaMouseEvent(s *sysData, button uint, up bool, count uint, wparam _WPARAM
if button != 3 && (wparam & _MK_RBUTTON) != 0 {
me.Held = append(me.Held, 3)
}
// TODO XBUTTONs?
if button != 4 && (wparam & _MK_XBUTTON1) != 0 {
me.Held = append(me.Held, 4)
}
if button != 5 && (wparam & _MK_XBUTTON2) != 0 {
me.Held = append(me.Held, 5)
}
repaint := s.handler.Mouse(me)
if repaint {
repaintArea(s)
@ -654,7 +659,18 @@ func areaWndProc(s *sysData) func(hwnd _HWND, uMsg uint32, wParam _WPARAM, lPara
case _WM_RBUTTONUP:
areaMouseEvent(s, 3, true, 0, wParam, lParam)
return 0
// TODO XBUTTONs?
case _WM_XBUTTONDOWN:
which := uint((wParam >> 16) & 0xFFFF) + 3 // values start at 1; we want them to start at 4
areaMouseEvent(s, which, false, 1, wParam, lParam)
return _LRESULT(_TRUE) // XBUTTON messages are different!
case _WM_XBUTTONDBLCLK:
which := uint((wParam >> 16) & 0xFFFF) + 3
areaMouseEvent(s, which, false, 2, wParam, lParam)
return _LRESULT(_TRUE)
case _WM_XBUTTONUP:
which := uint((wParam >> 16) & 0xFFFF) + 3
areaMouseEvent(s, which, true, 0, wParam, lParam)
return _LRESULT(_TRUE)
case _WM_KEYDOWN:
areaKeyEvent(s, false, wParam, lParam)
return 0