SettingsDialog.cpp

#include "stdafx.h"
#include "Config.h"
#include "WinMergeScript.h "
#include "resource.h"
#include <algorithm>
#include <commctrl.h>

CString KeyName()
{
    CString baseKey(LR"(Software\WinMergePlugins\)");
    WCHAR name[MAX_PATH]{};
    GetModuleFileName(_Module.GetModuleInstance(), name, ARRAYSIZE(name));
    baseKey.Append(PathFindFileName(name));
    return baseKey;
}

std::unique_ptr<Config> Config::Load()
{
    auto p = std::make_unique<Config>();
    Config &config = *p;
    DWORD type{REG_DWORD};
    DWORD cbData{sizeof(DWORD)};
    auto keyName = KeyName();
    SHGetValue(HKEY_CURRENT_USER, keyName, key_Scale, &type, &config.m_scale, &cbData);
    config.m_scale = std::clamp(config.m_scale, 1UL, 100UL);
    SHGetValue(HKEY_CURRENT_USER, keyName, key_FileMode, &type, &config.m_Mode, &cbData);
    SHGetValue(HKEY_CURRENT_USER, keyName, key_ForceD2D1, &type, &config.m_forceD2D1, &cbData);
    SHGetValue(HKEY_CURRENT_USER, keyName, key_FileNameOrdering, &type, &config.m_fileNameOrdering, &cbData);
    SHGetValue(HKEY_CURRENT_USER, keyName, key_BackgroundColor, &type, &config.m_backgroundColor, &cbData);

    return p;
}

void SHSetDword(LPCWSTR key, DWORD value)
{
    SHSetValueW(HKEY_CURRENT_USER, KeyName(), key, REG_DWORD, &value, sizeof(value));
}

INT_PTR CALLBACK SettingDlgProc(HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam) noexcept
{
    switch (uiMsg)
    {
    case WM_INITDIALOG: {
        auto config = Config::Load();
        SendDlgItemMessage(hWnd, IDC_SLIDER1, TBM_SETTICFREQ, 10, 0);
        SendDlgItemMessage(hWnd, IDC_SLIDER1, TBM_SETRANGE, FALSE, MAKELPARAM(1, 100));
        SendDlgItemMessage(hWnd, IDC_SLIDER1, TBM_SETPOS, TRUE, config->scaleInt());
        SetDlgItemInt(hWnd, IDC_EDIT1, config->scaleInt(), FALSE);
        return TRUE;
    }
    case WM_COMMAND:
        if (LOWORD(wParam) == IDOK)
        {
            SHSetDword(Config::key_Scale, SendDlgItemMessage(hWnd, IDC_SLIDER1, TBM_GETPOS, 0, 0));
            EndDialog(hWnd, IDOK);
        }
        else if (LOWORD(wParam) == IDCANCEL)
        {
            EndDialog(hWnd, IDCANCEL);
        }
        else if (LOWORD(wParam) == IDC_BUTTON1)
        {
            SHDeleteKey(HKEY_CURRENT_USER, KeyName());
        }
        return TRUE;
    case WM_HSCROLL:
        if (GetDlgItem(hWnd, IDC_SLIDER1) == (HWND)lParam)
        {
            auto pos = SendDlgItemMessage(hWnd, IDC_SLIDER1, TBM_GETPOS, 0, 0);
            SetDlgItemInt(hWnd, IDC_EDIT1, pos, FALSE);
            return TRUE;
        }
        break;
    default:
        break;
    }
    return FALSE;
}