Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Deprecated/GuiAdapter.cpp @ 1512:244ad1e4e76a
reorganization of folders
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Tue, 07 Jul 2020 16:21:02 +0200 |
parents | Framework/Deprecated/GuiAdapter.cpp@e5729dab3f67 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/OrthancStone/Sources/Deprecated/GuiAdapter.cpp Tue Jul 07 16:21:02 2020 +0200 @@ -0,0 +1,1139 @@ +/** + * 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/>. + **/ + +#include "GuiAdapter.h" + +#if ORTHANC_ENABLE_OPENGL == 1 +# include "../OpenGL/OpenGLIncludes.h" +#endif + +#if ORTHANC_ENABLE_SDL == 1 +# include <SDL_video.h> +# include <SDL_render.h> +# include <SDL.h> +#endif + +#include <Compatibility.h> + +namespace OrthancStone +{ + std::ostream& operator<<( + std::ostream& os, const GuiAdapterKeyboardEvent& event) + { + os << "sym: " << event.sym << " (" << (int)(event.sym[0]) << ") ctrl: " << event.ctrlKey << ", " << + "shift: " << event.shiftKey << ", " << + "alt: " << event.altKey; + return os; + } + + std::ostream& operator<<( + std::ostream& os, const GuiAdapterMouseEvent& event) + { + os << "targetX: " << event.targetX << " targetY: " << event.targetY << " button: " << event.button + << "ctrlKey: " << event.ctrlKey << "shiftKey: " << event.shiftKey << "altKey: " << event.altKey; + + return os; + } + + int GuiAdapter::s_instanceCount = 0; + +#if ORTHANC_ENABLE_WASM == 1 + void GuiAdapter::Run(GuiAdapterRunFunc /*func*/, void* /*cookie*/) + { + } + + void ConvertFromPlatform( + GuiAdapterUiEvent& dest, + int eventType, + const EmscriptenUiEvent& src) + { + // no data for now + } + + void ConvertFromPlatform( + GuiAdapterMouseEvent& dest, + int eventType, + const EmscriptenMouseEvent& src) + { + memset(&dest, 0, sizeof(GuiAdapterMouseEvent)); + switch (eventType) + { + case EMSCRIPTEN_EVENT_CLICK: + LOG(ERROR) << "Emscripten EMSCRIPTEN_EVENT_CLICK is not supported"; + ORTHANC_ASSERT(false, "Not supported"); + break; + case EMSCRIPTEN_EVENT_MOUSEDOWN: + dest.type = GUIADAPTER_EVENT_MOUSEDOWN; + break; + case EMSCRIPTEN_EVENT_DBLCLICK: + dest.type = GUIADAPTER_EVENT_MOUSEDBLCLICK; + break; + case EMSCRIPTEN_EVENT_MOUSEMOVE: + dest.type = GUIADAPTER_EVENT_MOUSEMOVE; + break; + case EMSCRIPTEN_EVENT_MOUSEUP: + dest.type = GUIADAPTER_EVENT_MOUSEUP; + break; + case EMSCRIPTEN_EVENT_WHEEL: + dest.type = GUIADAPTER_EVENT_WHEEL; + break; + + default: + LOG(ERROR) << "Emscripten event: " << eventType << " is not supported"; + ORTHANC_ASSERT(false, "Not supported"); + } + //dest.timestamp = src.timestamp; + //dest.screenX = src.screenX; + //dest.screenY = src.screenY; + //dest.clientX = src.clientX; + //dest.clientY = src.clientY; + dest.ctrlKey = src.ctrlKey; + dest.shiftKey = src.shiftKey; + dest.altKey = src.altKey; + //dest.metaKey = src.metaKey; + dest.button = src.button; + //dest.buttons = src.buttons; + //dest.movementX = src.movementX; + //dest.movementY = src.movementY; + dest.targetX = src.targetX; + dest.targetY = src.targetY; + //dest.canvasX = src.canvasX; + //dest.canvasY = src.canvasY; + //dest.padding = src.padding; + } + + void ConvertFromPlatform( GuiAdapterWheelEvent& dest, int eventType, const EmscriptenWheelEvent& src) + { + ConvertFromPlatform(dest.mouse, eventType, src.mouse); + dest.deltaX = src.deltaX; + dest.deltaY = src.deltaY; + switch (src.deltaMode) + { + case DOM_DELTA_PIXEL: + dest.deltaMode = GUIADAPTER_DELTA_PIXEL; + break; + case DOM_DELTA_LINE: + dest.deltaMode = GUIADAPTER_DELTA_LINE; + break; + case DOM_DELTA_PAGE: + dest.deltaMode = GUIADAPTER_DELTA_PAGE; + break; + default: + ORTHANC_ASSERT(false, "Unknown deltaMode: " << src.deltaMode << + " in wheel event..."); + } + dest.deltaMode = src.deltaMode; + } + + void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const EmscriptenKeyboardEvent& src) + { + dest.sym[0] = src.key[0]; + dest.sym[1] = 0; + dest.ctrlKey = src.ctrlKey; + dest.shiftKey = src.shiftKey; + dest.altKey = src.altKey; + } + + template<typename GenericFunc> + struct FuncAdapterPayload + { + std::string canvasCssSelector; + void* userData; + GenericFunc callback; + }; + + template<typename GenericFunc, + typename GuiAdapterEvent, + typename EmscriptenEvent> + EM_BOOL OnEventAdapterFunc( + int eventType, const EmscriptenEvent* emEvent, void* userData) + { + // userData is OnMouseWheelFuncAdapterPayload + FuncAdapterPayload<GenericFunc>* payload = + reinterpret_cast<FuncAdapterPayload<GenericFunc>*>(userData); + // LOG(INFO) << "OnEventAdapterFunc"; + // LOG(INFO) << "------------------"; + // LOG(INFO) << "eventType: " << eventType << " wheelEvent: " << + // (int)wheelEvent << " userData: " << userData << + // " payload->userData: " << payload->userData; + + GuiAdapterEvent guiEvent; + ConvertFromPlatform(guiEvent, eventType, *emEvent); + bool ret = (*(payload->callback))(payload->canvasCssSelector, &guiEvent, payload->userData); + return static_cast<EM_BOOL>(ret); + } + + template<typename GenericFunc, + typename GuiAdapterEvent, + typename EmscriptenEvent> + EM_BOOL OnEventAdapterFunc2( + int /*eventType*/, const EmscriptenEvent* wheelEvent, void* userData) + { + // userData is OnMouseWheelFuncAdapterPayload + FuncAdapterPayload<GenericFunc>* payload = + reinterpret_cast<FuncAdapterPayload<GenericFunc>*>(userData); + + GuiAdapterEvent guiEvent; + ConvertFromPlatform(guiEvent, *wheelEvent); + bool ret = (*(payload->callback))(payload->canvasCssSelector, &guiEvent, payload->userData); + return static_cast<EM_BOOL>(ret); + } + + template<typename GenericFunc> + EM_BOOL OnEventAdapterFunc3( + double time, void* userData) + { + // userData is OnMouseWheelFuncAdapterPayload + FuncAdapterPayload<GenericFunc>* payload = + reinterpret_cast<FuncAdapterPayload<GenericFunc>*>(userData); + //std::unique_ptr< FuncAdapterPayload<GenericFunc> > deleter(payload); + bool ret = (*(payload->callback))(time, payload->userData); + return static_cast<EM_BOOL>(ret); + } + + /* + + Explanation + =========== + + - in "older" Emscripten, where DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR doesn't exist or is set to 0, + the following strings need to be used to register events: + - for canvas, the canvas DOM id. In case of <canvas id="mycanvas1" width='640' ...></canvas>", the string needs + to be "mycanvas" + - for the window (for key events), the string needs to be "#window" + - in newer Emscripten where DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR==1 (or maybe is not there anymore, in the + future as of 2020-04-20) + - for canvas, the canvas DOM id. In case of <canvas id="mycanvas1" width='640' ...></canvas>", the string needs + to be "#mycanvas" (notice the "number sign", aka "hash", NOT AKA "sharp", as can be read on https://en.wikipedia.org/wiki/Number_sign) + - for the window (for key events), the string needs to be EMSCRIPTEN_EVENT_TARGET_WINDOW. I do not mean + "EMSCRIPTEN_EVENT_TARGET_WINDOW", but the #define EMSCRIPTEN_EVENT_TARGET_WINDOW ((const char*)2) that + can be found in emscripten/html5.h + + The code below converts the input canvasId (as in the old emscripten) to the emscripten-compliant one, with the + following compile condition : #if DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR == 1 + + If the DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR build parameter disappears, you might want to refactor this code + or continue to pass the DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR compile macro (which is different from the CMake + variable) + + What we are doing below: + - in older Emscripten, the registration functions will receive "mycanvas" and "#window" and the callbacks will receive + the same std::string in their payload ("mycanvas" and "#window") + + - in newer Emscripten, the registration functions will receive "#mycanvas" and EMSCRIPTEN_EVENT_TARGET_WINDOW, but + the callbacks will receive "#mycanvas" and "#window" (since it is not possible to store the EMSCRIPTEN_EVENT_TARGET_WINDOW + magic value in an std::string, while we still want the callback to be able to change its behavior according to the + target element. + + */ + + void convertElementTarget(const char*& outCanvasCssSelectorSz, std::string& outCanvasCssSelector, const std::string& canvasId) + { + // only "#window" can start with a # + if (canvasId[0] == '#') + { + ORTHANC_ASSERT(canvasId == "#window"); + } +#if DISABLE_DEPRECATED_FIND_EVENT_TARGET_BEHAVIOR == 1 + if (canvasId == "#window") + { + // we store this in the payload so that the callback can + outCanvasCssSelector = "#window"; + outCanvasCssSelectorSz = EMSCRIPTEN_EVENT_TARGET_WINDOW; + } + else + { + outCanvasCssSelector = "#" + canvasId; + outCanvasCssSelectorSz = outCanvasCssSelector.c_str(); + } +#else + if (canvasId == "#window") + { + // we store this in the payload so that the callback can + outCanvasCssSelector = "#window"; + outCanvasCssSelectorSz = outCanvasCssSelector.c_str();; + } + else + { + outCanvasCssSelector = canvasId; + outCanvasCssSelectorSz = outCanvasCssSelector.c_str();; + } +#endif + } + + // resize: (const char* target, void* userData, EM_BOOL useCapture, em_ui_callback_func callback) + template< + typename GenericFunc, + typename GuiAdapterEvent, + typename EmscriptenEvent, + typename EmscriptenSetCallbackFunc> + static void SetCallback( + EmscriptenSetCallbackFunc emFunc, + std::string canvasId, void* userData, bool capture, GenericFunc func) + { + std::string canvasCssSelector; + const char* canvasCssSelectorSz = NULL; + convertElementTarget(canvasCssSelectorSz, canvasCssSelector, canvasId); + + // TODO: write RemoveCallback with an int id that gets returned from here + + // create userdata payload + std::unique_ptr<FuncAdapterPayload<GenericFunc> > payload(new FuncAdapterPayload<GenericFunc>()); + payload->canvasCssSelector = canvasCssSelector; + payload->callback = func; + payload->userData = userData; + void* userDataRaw = reinterpret_cast<void*>(payload.release()); + + // call the registration function + (*emFunc)( + canvasCssSelectorSz, + userDataRaw, + static_cast<EM_BOOL>(capture), + &OnEventAdapterFunc<GenericFunc, GuiAdapterEvent, EmscriptenEvent>, + EM_CALLBACK_THREAD_CONTEXT_CALLING_THREAD); + } + + template< + typename GenericFunc, + typename GuiAdapterEvent, + typename EmscriptenEvent, + typename EmscriptenSetCallbackFunc> + static void SetCallback2( + EmscriptenSetCallbackFunc emFunc, + std::string canvasId, void* userData, bool capture, GenericFunc func) + { + std::string canvasCssSelector; + const char* canvasCssSelectorSz = NULL; + convertElementTarget(canvasCssSelectorSz, canvasCssSelector, canvasId); + + // TODO: write RemoveCallback with an int id that gets returned from here + + // create userdata payload + std::unique_ptr<FuncAdapterPayload<GenericFunc> > payload(new FuncAdapterPayload<GenericFunc>()); + payload->canvasCssSelector = canvasCssSelector; + payload->callback = func; + payload->userData = userData; + void* userDataRaw = reinterpret_cast<void*>(payload.release()); + + // call the registration function + (*emFunc)( + canvasCssSelectorSz, + userDataRaw, + static_cast<EM_BOOL>(capture), + &OnEventAdapterFunc2<GenericFunc, GuiAdapterEvent, EmscriptenEvent>, + EM_CALLBACK_THREAD_CONTEXT_CALLING_THREAD); + } + + template< + typename GenericFunc, + typename EmscriptenSetCallbackFunc> + static void SetAnimationFrameCallback( + EmscriptenSetCallbackFunc emFunc, + void* userData, GenericFunc func) + { + std::unique_ptr<FuncAdapterPayload<GenericFunc> > payload( + new FuncAdapterPayload<GenericFunc>() + ); + payload->canvasCssSelector = "UNDEFINED"; + payload->callback = func; + payload->userData = userData; + void* userDataRaw = reinterpret_cast<void*>(payload.release()); + (*emFunc)( + &OnEventAdapterFunc3<GenericFunc>, + userDataRaw); + } + + void GuiAdapter::SetWheelCallback( + std::string canvasId, void* userData, bool capture, OnMouseWheelFunc func) + { + SetCallback<OnMouseWheelFunc, GuiAdapterWheelEvent, EmscriptenWheelEvent>( + &emscripten_set_wheel_callback_on_thread, + canvasId, + userData, + capture, + func); + } + + + void GuiAdapter::SetMouseDblClickCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + SetCallback<OnMouseEventFunc, GuiAdapterMouseEvent, EmscriptenMouseEvent>( + &emscripten_set_dblclick_callback_on_thread, + canvasId, + userData, + capture, + func); + } + + + void GuiAdapter::SetMouseDownCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + SetCallback<OnMouseEventFunc, GuiAdapterMouseEvent, EmscriptenMouseEvent>( + &emscripten_set_mousedown_callback_on_thread, + canvasId, + userData, + capture, + func); + } + + void GuiAdapter::SetMouseMoveCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + // LOG(INFO) << "SetMouseMoveCallback -- " << "supplied userData: " << + // userData; + + SetCallback<OnMouseEventFunc, GuiAdapterMouseEvent, EmscriptenMouseEvent>( + &emscripten_set_mousemove_callback_on_thread, + canvasId, + userData, + capture, + func); + } + + void GuiAdapter::SetMouseUpCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + SetCallback<OnMouseEventFunc, GuiAdapterMouseEvent, EmscriptenMouseEvent>( + &emscripten_set_mouseup_callback_on_thread, + canvasId, + userData, + capture, + func); + } + + void GuiAdapter::SetKeyDownCallback( + std::string canvasId, void* userData, bool capture, OnKeyDownFunc func) + { + SetCallback2<OnKeyDownFunc, GuiAdapterKeyboardEvent, EmscriptenKeyboardEvent>( + &emscripten_set_keydown_callback_on_thread, + canvasId, + userData, + capture, + func); + } + + void GuiAdapter::SetKeyUpCallback( + std::string canvasId, void* userData, bool capture, OnKeyUpFunc func) + { + SetCallback2<OnKeyUpFunc, GuiAdapterKeyboardEvent, EmscriptenKeyboardEvent>( + &emscripten_set_keyup_callback_on_thread, + canvasId, + userData, + capture, + func); + } + +#if 0 + // useless under Wasm where canvas resize is handled automatically + void GuiAdapter::SetResizeCallback( + std::string canvasId, void* userData, bool capture, OnWindowResizeFunc func) + { + SetCallback<OnWindowResizeFunc, GuiAdapterUiEvent, EmscriptenUiEvent>( + &emscripten_set_resize_callback_on_thread, + canvasId, + userData, + capture, + func); + } +#endif + + void GuiAdapter::RequestAnimationFrame( + OnAnimationFrameFunc func, void* userData) + { + SetAnimationFrameCallback<OnAnimationFrameFunc>( + &emscripten_request_animation_frame_loop, + userData, + func); + } + +#if 0 + void GuiAdapter::SetKeyDownCallback( + std::string canvasId, void* userData, bool capture, OnKeyDownFunc func) + { + emscripten_set_keydown_callback(canvasId.c_str(), userData, static_cast<EM_BOOL>(capture), func); + } + void GuiAdapter::SetKeyUpCallback( + std::string canvasId, void* userData, bool capture, OnKeyUpFunc func) + { + emscripten_set_keyup_callback(canvasId.c_str(), userData, static_cast<EM_BOOL>(capture), func); + } + + // handled from within WebAssemblyViewport + //void GuiAdapter::SetResizeCallback(std::string canvasId, void* userData, bool capture, OnWindowResizeFunc func) + //{ + // emscripten_set_resize_callback(canvasId.c_str(), userData, static_cast<EM_BOOL>(capture), func); + //} + + void GuiAdapter::RequestAnimationFrame(OnAnimationFrameFunc func, void* userData) + { + emscripten_request_animation_frame_loop(func, userData); + } +#endif + + +#else + + // SDL ONLY + void ConvertFromPlatform(GuiAdapterMouseEvent& dest, bool ctrlPressed, bool shiftPressed, bool altPressed, const SDL_Event& source) + { + memset(&dest, 0, sizeof(GuiAdapterMouseEvent)); + switch (source.type) + { + case SDL_MOUSEBUTTONDOWN: + if (source.button.clicks == 1) { + dest.type = GUIADAPTER_EVENT_MOUSEDOWN; + } else if (source.button.clicks == 2) { + dest.type = GUIADAPTER_EVENT_MOUSEDBLCLICK; + } else { + dest.type = GUIADAPTER_EVENT_MOUSEDBLCLICK; + LOG(WARNING) << "Multiple-click ignored."; + } + break; + case SDL_MOUSEMOTION: + dest.type = GUIADAPTER_EVENT_MOUSEMOVE; + break; + case SDL_MOUSEBUTTONUP: + dest.type = GUIADAPTER_EVENT_MOUSEUP; + break; + case SDL_MOUSEWHEEL: + dest.type = GUIADAPTER_EVENT_WHEEL; + break; + default: + LOG(ERROR) << "SDL event: " << source.type << " is not supported"; + ORTHANC_ASSERT(false, "Not supported"); + } + //dest.timestamp = src.timestamp; + //dest.screenX = src.screenX; + //dest.screenY = src.screenY; + //dest.clientX = src.clientX; + //dest.clientY = src.clientY; + dest.ctrlKey = ctrlPressed; + dest.shiftKey = shiftPressed; + dest.altKey = altPressed; + //dest.metaKey = src.metaKey; + switch (source.button.button) + { + case SDL_BUTTON_MIDDLE: + dest.button =GUIADAPTER_MOUSEBUTTON_MIDDLE; + break; + + case SDL_BUTTON_RIGHT: + dest.button = GUIADAPTER_MOUSEBUTTON_RIGHT; + break; + + case SDL_BUTTON_LEFT: + dest.button = GUIADAPTER_MOUSEBUTTON_LEFT; + break; + + default: + break; + } + //dest.buttons = src.buttons; + //dest.movementX = src.movementX; + //dest.movementY = src.movementY; + dest.targetX = source.button.x; + dest.targetY = source.button.y; + //dest.canvasX = src.canvasX; + //dest.canvasY = src.canvasY; + //dest.padding = src.padding; + } + + void ConvertFromPlatform( + GuiAdapterWheelEvent& dest, + bool ctrlPressed, bool shiftPressed, bool altPressed, + const SDL_Event& source) + { + ConvertFromPlatform(dest.mouse, ctrlPressed, shiftPressed, altPressed, source); + dest.deltaX = source.wheel.x; + dest.deltaY = source.wheel.y; + } + + void ConvertFromPlatform(GuiAdapterKeyboardEvent& dest, const SDL_Event& src) + { + memset(&dest, 0, sizeof(GuiAdapterMouseEvent)); + switch (src.type) + { + case SDL_KEYDOWN: + dest.type = GUIADAPTER_EVENT_KEYDOWN; + break; + case SDL_KEYUP: + dest.type = GUIADAPTER_EVENT_KEYUP; + break; + default: + LOG(ERROR) << "SDL event: " << src.type << " is not supported"; + ORTHANC_ASSERT(false, "Not supported"); + } + dest.sym[0] = src.key.keysym.sym; + dest.sym[1] = 0; + + if (src.key.keysym.mod & KMOD_CTRL) + dest.ctrlKey = true; + else + dest.ctrlKey = false; + + if (src.key.keysym.mod & KMOD_SHIFT) + dest.shiftKey = true; + else + dest.shiftKey = false; + + if (src.key.keysym.mod & KMOD_ALT) + dest.altKey = true; + else + dest.altKey = false; + } + + // SDL ONLY + void GuiAdapter::SetSdlResizeCallback( + std::string canvasId, void* userData, bool capture, OnSdlWindowResizeFunc func) + { + resizeHandlers_.push_back(EventHandlerData<OnSdlWindowResizeFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetMouseDownCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + mouseDownHandlers_.push_back(EventHandlerData<OnMouseEventFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetMouseDblClickCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + mouseDblCickHandlers_.push_back(EventHandlerData<OnMouseEventFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetMouseMoveCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + mouseMoveHandlers_.push_back(EventHandlerData<OnMouseEventFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetMouseUpCallback( + std::string canvasId, void* userData, bool capture, OnMouseEventFunc func) + { + mouseUpHandlers_.push_back(EventHandlerData<OnMouseEventFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetWheelCallback( + std::string canvasId, void* userData, bool capture, OnMouseWheelFunc func) + { + mouseWheelHandlers_.push_back(EventHandlerData<OnMouseWheelFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetKeyDownCallback( + std::string canvasId, void* userData, bool capture, OnKeyDownFunc func) + { + keyDownHandlers_.push_back(EventHandlerData<OnKeyDownFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetKeyUpCallback( + std::string canvasId, void* userData, bool capture, OnKeyUpFunc func) + { + keyUpHandlers_.push_back(EventHandlerData<OnKeyUpFunc>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::SetGenericSdlEventCallback( + std::string canvasId, void* userData, bool capture, OnSdlEventCallback func) + { + sdlEventHandlers_.push_back(EventHandlerData<OnSdlEventCallback>(canvasId, func, userData)); + } + + // SDL ONLY + void GuiAdapter::OnAnimationFrame() + { + std::vector<size_t> disabledAnimationHandlers; + for (size_t i = 0; i < animationFrameHandlers_.size(); i++) + { + // TODO: fix time + bool goOn = (*(animationFrameHandlers_[i].first))(0, animationFrameHandlers_[i].second); + + // If the function returns false, we need to emulate what happens in Web + // and remove the function from the handlers... + if (!goOn) + disabledAnimationHandlers.push_back(i); + } + for (size_t i = 0; i < disabledAnimationHandlers.size(); i++) + { + ORTHANC_ASSERT(animationFrameHandlers_.begin() + disabledAnimationHandlers[i] < animationFrameHandlers_.end()); + animationFrameHandlers_.erase(animationFrameHandlers_.begin() + disabledAnimationHandlers[i]); + } + } + + // SDL ONLY + void GuiAdapter::OnResize(unsigned int width, unsigned int height) + { + for (size_t i = 0; i < resizeHandlers_.size(); i++) + { + (*(resizeHandlers_[i].func))( + resizeHandlers_[i].canvasName, NULL, width, height, resizeHandlers_[i].userData); + } + } + + + + void GuiAdapter::OnSdlGenericEvent(const SDL_Event& sdlEvent) + { + // Events related to a window are only sent to the related canvas + // User events are sent to everyone (we can't filter them here) + + /* + SDL_WindowEvent SDL_WINDOWEVENT + SDL_KeyboardEvent SDL_KEYDOWN + SDL_KEYUP + SDL_TextEditingEvent SDL_TEXTEDITING + SDL_TextInputEvent SDL_TEXTINPUT + SDL_MouseMotionEvent SDL_MOUSEMOTION + SDL_MouseButtonEvent SDL_MOUSEBUTTONDOWN + SDL_MOUSEBUTTONUP + SDL_MouseWheelEvent SDL_MOUSEWHEEL + SDL_UserEvent SDL_USEREVENT through ::SDL_LASTEVENT-1 + */ + + // if this string is left empty, it means the message will be sent to + // all widgets. + // otherwise, it contains the originating message window title + + std::string windowTitle; + uint32_t windowId = 0; + + if (sdlEvent.type == SDL_WINDOWEVENT) + windowId = sdlEvent.window.windowID; + else if (sdlEvent.type == SDL_KEYDOWN || sdlEvent.type == SDL_KEYUP) + windowId = sdlEvent.key.windowID; + else if (sdlEvent.type == SDL_TEXTEDITING) + windowId = sdlEvent.edit.windowID; + else if (sdlEvent.type == SDL_TEXTINPUT) + windowId = sdlEvent.text.windowID; + else if (sdlEvent.type == SDL_MOUSEMOTION) + windowId = sdlEvent.motion.windowID; + else if (sdlEvent.type == SDL_MOUSEBUTTONDOWN || sdlEvent.type == SDL_MOUSEBUTTONUP) + windowId = sdlEvent.button.windowID; + else if (sdlEvent.type == SDL_MOUSEWHEEL) + windowId = sdlEvent.wheel.windowID; + else if (sdlEvent.type >= SDL_USEREVENT && sdlEvent.type <= (SDL_LASTEVENT-1)) + windowId = sdlEvent.user.windowID; + + if (windowId != 0) + { + SDL_Window* sdlWindow = SDL_GetWindowFromID(windowId); + ORTHANC_ASSERT(sdlWindow != NULL, "Window ID \"" << windowId << "\" is not a valid SDL window ID!"); + const char* windowTitleSz = SDL_GetWindowTitle(sdlWindow); + ORTHANC_ASSERT(windowTitleSz != NULL, "Window ID \"" << windowId << "\" has a NULL window title!"); + windowTitle = windowTitleSz; + ORTHANC_ASSERT(windowTitle != "", "Window ID \"" << windowId << "\" has an empty window title!"); + } + + for (size_t i = 0; i < sdlEventHandlers_.size(); i++) + { + // normally, the handlers return a bool indicating whether they + // have handled the event or not, but we don't really care about this + std::string& canvasName = sdlEventHandlers_[i].canvasName; + + bool sendEvent = true; + + if (windowTitle != "" && (canvasName != windowTitle)) + sendEvent = false; + + if (sendEvent) + { + OnSdlEventCallback func = sdlEventHandlers_[i].func; + (*func)(canvasName, sdlEvent, sdlEventHandlers_[i].userData); + } + } + } + + // SDL ONLY + void GuiAdapter::OnMouseWheelEvent(uint32_t windowID, const GuiAdapterWheelEvent& event) + { + // the SDL window name IS the canvas name ("canvas" is used because this lib + // is designed for Wasm + SDL_Window* sdlWindow = SDL_GetWindowFromID(windowID); + ORTHANC_ASSERT(sdlWindow != NULL, "Window ID \"" << windowID << "\" is not a valid SDL window ID!"); + + const char* windowTitleSz = SDL_GetWindowTitle(sdlWindow); + ORTHANC_ASSERT(windowTitleSz != NULL, "Window ID \"" << windowID << "\" has a NULL window title!"); + + std::string windowTitle(windowTitleSz); + ORTHANC_ASSERT(windowTitle != "", "Window ID \"" << windowID << "\" has an empty window title!"); + + switch (event.mouse.type) + { + case GUIADAPTER_EVENT_WHEEL: + for (size_t i = 0; i < mouseWheelHandlers_.size(); i++) + { + if (mouseWheelHandlers_[i].canvasName == windowTitle) + (*(mouseWheelHandlers_[i].func))(windowTitle, &event, mouseWheelHandlers_[i].userData); + } + break; + default: + ORTHANC_ASSERT(false, "Wrong event.type: " << event.mouse.type << " in GuiAdapter::OnMouseWheelEvent(...)"); + break; + } + } + + + void GuiAdapter::OnKeyboardEvent(uint32_t windowID, const GuiAdapterKeyboardEvent& event) + { + // only one-letter (ascii) keyboard events supported for now + ORTHANC_ASSERT(event.sym[0] != 0); + ORTHANC_ASSERT(event.sym[1] == 0); + + SDL_Window* sdlWindow = SDL_GetWindowFromID(windowID); + ORTHANC_ASSERT(sdlWindow != NULL, "Window ID \"" << windowID << "\" is not a valid SDL window ID!"); + + const char* windowTitleSz = SDL_GetWindowTitle(sdlWindow); + ORTHANC_ASSERT(windowTitleSz != NULL, "Window ID \"" << windowID << "\" has a NULL window title!"); + + std::string windowTitle(windowTitleSz); + ORTHANC_ASSERT(windowTitle != "", "Window ID \"" << windowID << "\" has an empty window title!"); + + switch (event.type) + { + case GUIADAPTER_EVENT_KEYDOWN: + for (size_t i = 0; i < keyDownHandlers_.size(); i++) + { + (*(keyDownHandlers_[i].func))(windowTitle, &event, keyDownHandlers_[i].userData); + } + break; + case GUIADAPTER_EVENT_KEYUP: + for (size_t i = 0; i < keyUpHandlers_.size(); i++) + { + (*(keyUpHandlers_[i].func))(windowTitle, &event, keyUpHandlers_[i].userData); + } + break; + default: + ORTHANC_ASSERT(false, "Wrong event.type: " << event.type << " in GuiAdapter::OnKeyboardEvent(...)"); + break; + } + } + + // SDL ONLY + void GuiAdapter::OnMouseEvent(uint32_t windowID, const GuiAdapterMouseEvent& event) + { + if (windowID == 0) + { + LOG(WARNING) << "GuiAdapter::OnMouseEvent -- windowID == 0 and event won't be routed!"; + } + else + { + // the SDL window name IS the canvas name ("canvas" is used because this lib + // is designed for Wasm + SDL_Window* sdlWindow = SDL_GetWindowFromID(windowID); + + ORTHANC_ASSERT(sdlWindow != NULL, "Window ID \"" << windowID << "\" is not a valid SDL window ID!"); + + const char* windowTitleSz = SDL_GetWindowTitle(sdlWindow); + ORTHANC_ASSERT(windowTitleSz != NULL, "Window ID \"" << windowID << "\" has a NULL window title!"); + + std::string windowTitle(windowTitleSz); + ORTHANC_ASSERT(windowTitle != "", "Window ID \"" << windowID << "\" has an empty window title!"); + + switch (event.type) + { + case GUIADAPTER_EVENT_MOUSEDOWN: + for (size_t i = 0; i < mouseDownHandlers_.size(); i++) + { + if (mouseDownHandlers_[i].canvasName == windowTitle) + (*(mouseDownHandlers_[i].func))(windowTitle, &event, mouseDownHandlers_[i].userData); + } + break; + case GUIADAPTER_EVENT_MOUSEDBLCLICK: + for (size_t i = 0; i < mouseDblCickHandlers_.size(); i++) + { + if (mouseDblCickHandlers_[i].canvasName == windowTitle) + (*(mouseDblCickHandlers_[i].func))(windowTitle, &event, mouseDblCickHandlers_[i].userData); + } + break; + case GUIADAPTER_EVENT_MOUSEMOVE: + for (size_t i = 0; i < mouseMoveHandlers_.size(); i++) + { + if (mouseMoveHandlers_[i].canvasName == windowTitle) + (*(mouseMoveHandlers_[i].func))(windowTitle, &event, mouseMoveHandlers_[i].userData); + } + break; + case GUIADAPTER_EVENT_MOUSEUP: + for (size_t i = 0; i < mouseUpHandlers_.size(); i++) + { + if (mouseUpHandlers_[i].canvasName == windowTitle) + (*(mouseUpHandlers_[i].func))(windowTitle, &event, mouseUpHandlers_[i].userData); + } + break; + default: + ORTHANC_ASSERT(false, "Wrong event.type: " << event.type << " in GuiAdapter::OnMouseEvent(...)"); + break; + } + } + } + + + // extern void Debug_SetContextToBeKilled(std::string title); + // extern void Debug_SetContextToBeRestored(std::string title); + + // SDL ONLY + void GuiAdapter::RequestAnimationFrame(OnAnimationFrameFunc func, void* userData) + { + animationFrameHandlers_.push_back(std::make_pair(func, userData)); + } + +# if ORTHANC_ENABLE_OPENGL == 1 && !defined(__APPLE__) /* OpenGL debug is not available on OS X */ + + // SDL ONLY + static void GLAPIENTRY + OpenGLMessageCallback(GLenum source, + GLenum type, + GLuint id, + GLenum severity, + GLsizei length, + const GLchar * message, + const void* userParam) + { + if (severity != GL_DEBUG_SEVERITY_NOTIFICATION) + { + fprintf(stderr, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s\n", + (type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : ""), + type, severity, message); + } + } +# endif + +#if 0 + // TODO: remove this when generic sdl event handlers are implemented in + // the DoseView + // SDL ONLY + bool GuiAdapter::IsSdlViewPortRefreshEvent(const SDL_Event& event) const + { + SDL_Window* sdlWindow = SDL_GetWindowFromID(event.window.windowID); + + ORTHANC_ASSERT(sdlWindow != NULL, "Window ID \"" << event.window.windowID << "\" is not a valid SDL window ID!"); + + const char* windowTitleSz = SDL_GetWindowTitle(sdlWindow); + + // now we need to find the DoseView from from the canvas name! + // (and retrieve the SdlViewport) + boost::shared_ptr<IGuiAdapterWidget> foundWidget; + VisitWidgets([&foundWidget, windowTitleSz](auto widget) + { + if (widget->GetCanvasIdentifier() == std::string(windowTitleSz)) + foundWidget = widget; + }); + ORTHANC_ASSERT(foundWidget, "The window named: \"" << windowTitleSz << "\" was not found in the registered widgets!"); + return foundWidget->GetSdlViewport().IsRefreshEvent(event); + } +#endif + + // SDL ONLY + void GuiAdapter::Run(GuiAdapterRunFunc func, void* cookie) + { +#if 1 + // TODO: MAKE THIS DYNAMIC !!! See SdlOpenGLViewport vs Cairo in ViewportWrapper +# if ORTHANC_ENABLE_OPENGL == 1 && !defined(__APPLE__) + glEnable(GL_DEBUG_OUTPUT); + glDebugMessageCallback(OpenGLMessageCallback, 0); +# endif +#endif + + // Uint32 SDL_GetWindowID(SDL_Window* window) + // SDL_Window* SDL_GetWindowFromID(Uint32 id) // may return NULL + + bool stop = false; + while (!stop) + { + { + // TODO: lock all viewports here! (use a scoped object) + if(func != NULL) + (*func)(cookie); + OnAnimationFrame(); // in SDL we must call it + } + + while (!stop) + { + std::vector<SDL_Event> sdlEvents; + std::map<Uint32,SDL_Event> userEventsMap; + + SDL_Event sdlEvent; + + // FIRST: collect all pending events + while (SDL_PollEvent(&sdlEvent) != 0) + { + if ( (sdlEvent.type >= SDL_USEREVENT) && + (sdlEvent.type < SDL_LASTEVENT) ) + { + // we don't want to have multiple events with the same event.type + userEventsMap[sdlEvent.type] = sdlEvent; + } + else + { + sdlEvents.push_back(sdlEvent); + } + } + + // SECOND: collect all user events + for (std::map<Uint32,SDL_Event>::const_iterator it = userEventsMap.begin(); it != userEventsMap.end(); ++it) + sdlEvents.push_back(it->second); + + // now process the events + for (std::vector<SDL_Event>::const_iterator it = sdlEvents.begin(); it != sdlEvents.end(); ++it) + { + const SDL_Event& sdlEvent = *it; + // TODO: lock all viewports here! (use a scoped object) + + if (sdlEvent.type == SDL_QUIT) + { + // TODO: call exit callbacks here + stop = true; + break; + } + else if ((sdlEvent.type == SDL_MOUSEMOTION) || + (sdlEvent.type == SDL_MOUSEBUTTONDOWN) || + (sdlEvent.type == SDL_MOUSEBUTTONUP)) + { + int scancodeCount = 0; + const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); + bool ctrlPressed(false); + bool shiftPressed(false); + bool altPressed(false); + + if (SDL_SCANCODE_LCTRL < scancodeCount && keyboardState[SDL_SCANCODE_LCTRL]) + ctrlPressed = true; + if (SDL_SCANCODE_RCTRL < scancodeCount && keyboardState[SDL_SCANCODE_RCTRL]) + ctrlPressed = true; + if (SDL_SCANCODE_LSHIFT < scancodeCount && keyboardState[SDL_SCANCODE_LSHIFT]) + shiftPressed = true; + if (SDL_SCANCODE_RSHIFT < scancodeCount && keyboardState[SDL_SCANCODE_RSHIFT]) + shiftPressed = true; + if (SDL_SCANCODE_LALT < scancodeCount && keyboardState[SDL_SCANCODE_LALT]) + altPressed = true; + + GuiAdapterMouseEvent dest; + ConvertFromPlatform(dest, ctrlPressed, shiftPressed, altPressed, sdlEvent); + OnMouseEvent(sdlEvent.window.windowID, dest); + #if 0 + // for reference, how to create trackers + if (tracker) + { + PointerEvent e; + e.AddPosition(compositor.GetPixelCenterCoordinates( + sdlEvent.button.x, sdlEvent.button.y)); + tracker->PointerMove(e); + } + #endif + } + else if (sdlEvent.type == SDL_MOUSEWHEEL) + { + + int scancodeCount = 0; + const uint8_t* keyboardState = SDL_GetKeyboardState(&scancodeCount); + bool ctrlPressed(false); + bool shiftPressed(false); + bool altPressed(false); + + if (SDL_SCANCODE_LCTRL < scancodeCount && keyboardState[SDL_SCANCODE_LCTRL]) + ctrlPressed = true; + if (SDL_SCANCODE_RCTRL < scancodeCount && keyboardState[SDL_SCANCODE_RCTRL]) + ctrlPressed = true; + if (SDL_SCANCODE_LSHIFT < scancodeCount && keyboardState[SDL_SCANCODE_LSHIFT]) + shiftPressed = true; + if (SDL_SCANCODE_RSHIFT < scancodeCount && keyboardState[SDL_SCANCODE_RSHIFT]) + shiftPressed = true; + if (SDL_SCANCODE_LALT < scancodeCount && keyboardState[SDL_SCANCODE_LALT]) + altPressed = true; + + GuiAdapterWheelEvent dest; + ConvertFromPlatform(dest, ctrlPressed, shiftPressed, altPressed, sdlEvent); + OnMouseWheelEvent(sdlEvent.window.windowID, dest); + + //KeyboardModifiers modifiers = GetKeyboardModifiers(keyboardState, scancodeCount); + + //int x, y; + //SDL_GetMouseState(&x, &y); + + //if (sdlEvent.wheel.y > 0) + //{ + // locker.GetCentralViewport().MouseWheel(MouseWheelDirection_Up, x, y, modifiers); + //} + //else if (sdlEvent.wheel.y < 0) + //{ + // locker.GetCentralViewport().MouseWheel(MouseWheelDirection_Down, x, y, modifiers); + //} + } + else if (sdlEvent.type == SDL_WINDOWEVENT && + (sdlEvent.window.event == SDL_WINDOWEVENT_RESIZED || + sdlEvent.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)) + { + #if 0 + tracker.reset(); + #endif + OnResize(sdlEvent.window.data1, sdlEvent.window.data2); + } + else if (sdlEvent.type == SDL_KEYDOWN && sdlEvent.key.repeat == 0 /* Ignore key bounce */) + { + switch (sdlEvent.key.keysym.sym) + { + case SDLK_f: + // window.GetWindow().ToggleMaximize(); //TODO: move to particular handler + break; + + // This commented out code was used to debug the context + // loss/restoring code (2019-08-10) + // case SDLK_k: + // { + // SDL_Window* window = SDL_GetWindowFromID(sdlEvent.window.windowID); + // std::string windowTitle(SDL_GetWindowTitle(window)); + // Debug_SetContextToBeKilled(windowTitle); + // } + // break; + // case SDLK_l: + // { + // SDL_Window* window = SDL_GetWindowFromID(sdlEvent.window.windowID); + // std::string windowTitle(SDL_GetWindowTitle(window)); + // Debug_SetContextToBeRestored(windowTitle); + // } + // break; + + case SDLK_q: + stop = true; + break; + + default: + GuiAdapterKeyboardEvent dest; + ConvertFromPlatform(dest, sdlEvent); + OnKeyboardEvent(sdlEvent.window.windowID, dest); + break; + } + } + + OnSdlGenericEvent(sdlEvent); + } + SDL_Delay(1); + } + } + } +#endif +} +