func (this *W32Control) init(className string, parent Controller, exstyle, style uint) {
this.hwnd = CreateWindow(className, parent, exstyle, style)
if this.hwnd == 0 {
panic("cannot create window for " + className)
}
this.isMouseLeft = true
this.originalWndProc = uintptr(w32.SetWindowLong(this.hwnd, w32.GWLP_WNDPROC, uint32(GeneralWndprocCallBack)))
this.ControlBase.init(parent)
}
func generalWndProc(hwnd w32.HWND, msg uint, wparam, lparam uintptr) uintptr {
if msg == w32.WM_INITDIALOG && gDialogWaiting != nil {
gDialogWaiting.hwnd = hwnd
RegMsgHandler(gDialogWaiting)
}
if controller := GetMsgHandler(hwnd); controller != nil {
ret := controller.WndProc(msg, wparam, lparam)
switch msg {
case w32.WM_NOTIFY: //Reflect notification to control
nm := (*w32.NMHDR)(unsafe.Pointer(lparam))
if controller := GetMsgHandler(nm.HwndFrom); controller != nil {
ret := controller.WndProc(msg, wparam, lparam)
if ret != 0 {
w32.SetWindowLong(hwnd, w32.DWL_MSGRESULT, uint32(ret))
return w32.TRUE
}
}
case w32.WM_COMMAND:
if lparam != 0 { //Reflect message to control
h := w32.HWND(lparam)
if controller := GetMsgHandler(h); controller != nil {
ret := controller.WndProc(msg, wparam, lparam)
if ret != 0 {
w32.SetWindowLong(hwnd, w32.DWL_MSGRESULT, uint32(ret))
return w32.TRUE
}
}
}
case w32.WM_CLOSE:
controller.OnClose().Fire(NewEventArg(controller, nil))
case w32.WM_KILLFOCUS:
controller.OnKillFocus().Fire(NewEventArg(controller, nil))
case w32.WM_SETFOCUS:
controller.OnSetFocus().Fire(NewEventArg(controller, nil))
case w32.WM_DROPFILES:
controller.OnDropFiles().Fire(NewEventArg(controller, genDropFilesEventArg(wparam)))
case w32.WM_LBUTTONDOWN:
controller.OnLBDown().Fire(NewEventArg(controller, genMouseEventArg(wparam, lparam)))
case w32.WM_LBUTTONUP:
controller.OnLBUp().Fire(NewEventArg(controller, genMouseEventArg(wparam, lparam)))
case w32.WM_MBUTTONDOWN:
controller.OnMBDown().Fire(NewEventArg(controller, genMouseEventArg(wparam, lparam)))
case w32.WM_MBUTTONUP:
controller.OnMBUp().Fire(NewEventArg(controller, genMouseEventArg(wparam, lparam)))
case w32.WM_RBUTTONDOWN:
controller.OnRBDown().Fire(NewEventArg(controller, genMouseEventArg(wparam, lparam)))
case w32.WM_RBUTTONUP:
controller.OnRBUp().Fire(NewEventArg(controller, genMouseEventArg(wparam, lparam)))
case w32.WM_PAINT:
canvas := NewCanvasFromHwnd(hwnd)
defer canvas.Dispose()
controller.OnPaint().Fire(NewEventArg(controller, &PaintEventData{Canvas: canvas}))
case w32.WM_KEYUP:
controller.OnKeyUp().Fire(NewEventArg(controller, &KeyUpEventData{int(wparam), int(lparam)}))
case w32.WM_SIZE:
x, y := genPoint(lparam)
controller.OnSize().Fire(NewEventArg(controller, &SizeEventData{uint(wparam), x, y}))
}
//Trigger msg handler registered via "Bind".
if handler, ok := controller.BindedHandler(msg); ok {
handler(NewEventArg(controller, &RawMsg{hwnd, msg, wparam, lparam}))
}
return ret
}
return w32.DefWindowProc(hwnd, uint32(msg), wparam, lparam)
}