raii.cpp

// This file is part of DSpellCheck Plug-in for Notepad++
// Copyright (C)2019 Sergey Semushin <Predelnik@gmail.com>
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

#include "raii.h"

#include "Notepad_plus_msgs.h"

#include <OleCtl.h>
#include <cassert>

ToolbarIconsWrapper::ToolbarIconsWrapper() : m_icons{std::make_unique<toolbarIconsWithDarkMode>()} {
  m_icons->hToolbarBmp = nullptr;
  m_icons->hToolbarIcon = nullptr;
  m_icons->hToolbarIconDarkMode = nullptr;
}

ToolbarIconsWrapper::~ToolbarIconsWrapper() {
  if (m_icons->hToolbarBmp != nullptr)
    DeleteObject(m_icons->hToolbarBmp);

  if (m_icons->hToolbarIcon != nullptr)
    DeleteObject(m_icons->hToolbarIcon);

  if (m_icons->hToolbarIconDarkMode != nullptr)
    DeleteObject(m_icons->hToolbarIconDarkMode);
}

ToolbarIconsWrapper::ToolbarIconsWrapper(HINSTANCE h_inst, LPCWSTR normal_name, LPCWSTR dark_mode_name, std::span<const BmpData> bmp_icons)
    : ToolbarIconsWrapper() {
  HDC hdc = ::GetDC(NULL);
  int icon_width = 0;
  int icon_height = 0;
  if (hdc) {
    icon_width = ::MulDiv(16, GetDeviceCaps(hdc, LOGPIXELSX), 96);
    icon_height = ::MulDiv(16, GetDeviceCaps(hdc, LOGPIXELSY), 96);
  }
  auto style = (LR_LOADTRANSPARENT | LR_DEFAULTSIZE | LR_LOADMAP3DCOLORS);
  assert(!bmp_icons.empty());
  auto it = std::ranges::find_if(bmp_icons, [&](size_t size) { return size == static_cast<size_t>(icon_width) && size == static_cast<size_t>(icon_height);  }, &BmpData::size);
  if (it == std::cend(bmp_icons)) {
    it = std::prev(it);
  }
  m_icons->hToolbarBmp = static_cast<HBITMAP>(::LoadImage(h_inst, it->name, IMAGE_BITMAP, icon_width, icon_height, style));
  m_icons->hToolbarIcon = static_cast<HICON>(::LoadImage(h_inst, normal_name, IMAGE_ICON, icon_width, icon_height, style));
  m_icons->hToolbarIconDarkMode = ::LoadIcon(h_inst, dark_mode_name);
}

const toolbarIconsWithDarkMode *ToolbarIconsWrapper::get() {
  return m_icons.get();
}