Mercurial > hg > orthanc-stone
diff Applications/Samples/Sdl/SdlHelpers.h @ 1538:d1806b4e4839
moving OrthancStone/Samples/ as Applications/Samples/
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 11 Aug 2020 13:24:38 +0200 |
parents | OrthancStone/Samples/Sdl/SdlHelpers.h@244ad1e4e76a |
children | 6e0da8370270 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Applications/Samples/Sdl/SdlHelpers.h Tue Aug 11 13:24:38 2020 +0200 @@ -0,0 +1,142 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2020 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero General Public License + * as published by the Free Software Foundation, either version 3 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 + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#pragma once + +#if ORTHANC_ENABLE_SDL != 1 +# error This file cannot be used if ORTHANC_ENABLE_SDL != 1 +#endif + +#include "../../Sources/Viewport/SdlViewport.h" + +#include <boost/shared_ptr.hpp> + +#include <SDL.h> + +#include <map> +#include <string> + +namespace OrthancStoneHelpers +{ + + inline OrthancStone::KeyboardModifiers GetKeyboardModifiers(const uint8_t* keyboardState, + const int scancodeCount) + { + using namespace OrthancStone; + int result = KeyboardModifiers_None; + + if (keyboardState != NULL) + { + if (SDL_SCANCODE_LSHIFT < scancodeCount && + keyboardState[SDL_SCANCODE_LSHIFT]) + { + result |= KeyboardModifiers_Shift; + } + + if (SDL_SCANCODE_RSHIFT < scancodeCount && + keyboardState[SDL_SCANCODE_RSHIFT]) + { + result |= KeyboardModifiers_Shift; + } + + if (SDL_SCANCODE_LCTRL < scancodeCount && + keyboardState[SDL_SCANCODE_LCTRL]) + { + result |= KeyboardModifiers_Control; + } + + if (SDL_SCANCODE_RCTRL < scancodeCount && + keyboardState[SDL_SCANCODE_RCTRL]) + { + result |= KeyboardModifiers_Control; + } + + if (SDL_SCANCODE_LALT < scancodeCount && + keyboardState[SDL_SCANCODE_LALT]) + { + result |= KeyboardModifiers_Alt; + } + + if (SDL_SCANCODE_RALT < scancodeCount && + keyboardState[SDL_SCANCODE_RALT]) + { + result |= KeyboardModifiers_Alt; + } + } + + return static_cast<KeyboardModifiers>(result); + } + + + inline void GetPointerEvent(OrthancStone::PointerEvent& p, + const OrthancStone::ICompositor& compositor, + SDL_Event event, + const uint8_t* keyboardState, + const int scancodeCount) + { + using namespace OrthancStone; + KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); + + switch (event.button.button) + { + case SDL_BUTTON_LEFT: + p.SetMouseButton(OrthancStone::MouseButton_Left); + break; + + case SDL_BUTTON_RIGHT: + p.SetMouseButton(OrthancStone::MouseButton_Right); + break; + + case SDL_BUTTON_MIDDLE: + p.SetMouseButton(OrthancStone::MouseButton_Middle); + break; + + default: + p.SetMouseButton(OrthancStone::MouseButton_None); + break; + } + + p.AddPosition(compositor.GetPixelCenterCoordinates(event.button.x, event.button.y)); + p.SetAltModifier( (modifiers & KeyboardModifiers_Alt) != 0); + p.SetControlModifier( (modifiers & KeyboardModifiers_Control) != 0); + p.SetShiftModifier( (modifiers & KeyboardModifiers_Shift) != 0); + } + + + inline boost::shared_ptr<OrthancStone::SdlViewport> GetSdlViewportFromWindowId( + const std::vector<boost::shared_ptr<OrthancStone::SdlViewport> >& viewports, + Uint32 windowID) + { + using namespace OrthancStone; + for (size_t i = 0; i < viewports.size(); ++i) + { + boost::shared_ptr<IViewport> viewport = viewports[i]; + boost::shared_ptr<SdlViewport> sdlViewport = boost::dynamic_pointer_cast<SdlViewport>(viewport); + Uint32 curWindowID = sdlViewport->GetSdlWindowId(); + if (windowID == curWindowID) + return sdlViewport; + } + + return boost::shared_ptr<OrthancStone::SdlViewport>(); + } +} + +