ScopeCheckBoxCtrl.cpp

#include "StdAfx.h"
#include "ScopeCheckBoxCtrl.h"

namespace scope {
    namespace gui {

CScopeCheckBoxCtrl::CScopeCheckBoxCtrl(ScopeValue<bool>* _scopeval, const bool& _connectback, const bool& _connectcontrolstate)
    : created(false)
    , scope_val(_scopeval)
    , shiftstate(false) {
    if ( _connectback )
        valueconnection = scope_val->ConnectGUI(std::bind(&CScopeCheckBoxCtrl::UpdateControl, this));
    if ( _connectcontrolstate )
        stateconnection = scope_val->ConnectState(std::bind(&CScopeCheckBoxCtrl::SetState, this, std::placeholders::_1));
}

CScopeCheckBoxCtrl::~CScopeCheckBoxCtrl() {
    valueconnection.disconnect();
    stateconnection.disconnect();
}

bool CScopeCheckBoxCtrl::AttachToDlgItem(HWND hWnd) {
    if ( SubclassWindow(hWnd) ) {
        created = true;
        UpdateControl();
        return true;
    }
    return false;
}

void CScopeCheckBoxCtrl::OnReflectedCommand(UINT uNotifyCode, int nID, CWindow wndCtl) {
    if ( uNotifyCode == BN_CLICKED ) {
        UpdateValue();
    }
}

LRESULT CScopeCheckBoxCtrl::OnKeyDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) {
    switch (wParam) {
    // space key automatically triggers OnClicked
    case VK_RETURN:
    case VK_TAB:
        //UpdateValue(); We do not need this, since value is updated on click or on space by other member functions
        ::PostMessage(GetParent(), WM_NEXTDLGCTL, shiftstate, 0L);
        return FALSE;
    case VK_SHIFT:
        shiftstate = true;
    }
    return DefWindowProc(uMsg, wParam, lParam);
}

LRESULT CScopeCheckBoxCtrl::OnKeyUp(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) {
    switch (wParam) {
    case VK_SHIFT:
        shiftstate = false;
    }
    return DefWindowProc(uMsg, wParam, lParam);
}

LRESULT CScopeCheckBoxCtrl::OnKillFocus(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) {
    UpdateValue();
    return DefWindowProc(uMsg, wParam, lParam);
}

LRESULT CScopeCheckBoxCtrl::OnUpdateControl(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled) {
    bool val = scope_val->Value();
    if ( val )
        SetCheck(BST_CHECKED);
    else
        SetCheck(BST_UNCHECKED);
    return 0;
}

void CScopeCheckBoxCtrl::UpdateControl() {
    ::PostMessage(m_hWnd, WM_UPDATECONTROL, NULL, NULL);
}

void CScopeCheckBoxCtrl::UpdateValue() {
    UINT state = GetCheck();
    if ( state == BST_CHECKED )
        scope_val->Set(true);
    if ( state == BST_UNCHECKED )
        scope_val->Set(false);
}

void CScopeCheckBoxCtrl::SetState(const bool& state) {
    if ( created )
        EnableWindow(state);
}

}

}