| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "tools/sk_app/Window.h" |
| |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkSurface.h" |
| #include "tools/sk_app/WindowContext.h" |
| |
| namespace sk_app { |
| |
| Window::Window() {} |
| |
| Window::~Window() {} |
| |
| void Window::detach() { fWindowContext = nullptr; } |
| |
| void Window::visitLayers(std::function<void(Layer*)> visitor) { |
| for (int i = 0; i < fLayers.count(); ++i) { |
| if (fLayers[i]->fActive) { |
| visitor(fLayers[i]); |
| } |
| } |
| } |
| |
| bool Window::signalLayers(std::function<bool(Layer*)> visitor) { |
| for (int i = fLayers.count() - 1; i >= 0; --i) { |
| if (fLayers[i]->fActive && visitor(fLayers[i])) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void Window::onBackendCreated() { |
| this->visitLayers([](Layer* layer) { layer->onBackendCreated(); }); |
| } |
| |
| bool Window::onChar(SkUnichar c, skui::ModifierKey modifiers) { |
| return this->signalLayers([=](Layer* layer) { return layer->onChar(c, modifiers); }); |
| } |
| |
| bool Window::onKey(skui::Key key, skui::InputState state, skui::ModifierKey modifiers) { |
| return this->signalLayers([=](Layer* layer) { return layer->onKey(key, state, modifiers); }); |
| } |
| |
| bool Window::onMouse(int x, int y, skui::InputState state, skui::ModifierKey modifiers) { |
| return this->signalLayers([=](Layer* layer) { return layer->onMouse(x, y, state, modifiers); }); |
| } |
| |
| bool Window::onMouseWheel(float delta, skui::ModifierKey modifiers) { |
| return this->signalLayers([=](Layer* layer) { return layer->onMouseWheel(delta, modifiers); }); |
| } |
| |
| bool Window::onTouch(intptr_t owner, skui::InputState state, float x, float y) { |
| return this->signalLayers([=](Layer* layer) { return layer->onTouch(owner, state, x, y); }); |
| } |
| |
| bool Window::onFling(skui::InputState state) { |
| return this->signalLayers([=](Layer* layer) { return layer->onFling(state); }); |
| } |
| |
| bool Window::onPinch(skui::InputState state, float scale, float x, float y) { |
| return this->signalLayers([=](Layer* layer) { return layer->onPinch(state, scale, x, y); }); |
| } |
| |
| void Window::onUIStateChanged(const SkString& stateName, const SkString& stateValue) { |
| this->visitLayers([=](Layer* layer) { layer->onUIStateChanged(stateName, stateValue); }); |
| } |
| |
| void Window::onPaint() { |
| if (!fWindowContext) { |
| return; |
| } |
| if (!fIsActive) { |
| return; |
| } |
| sk_sp<SkSurface> backbuffer = fWindowContext->getBackbufferSurface(); |
| if (backbuffer == nullptr) { |
| printf("no backbuffer!?\n"); |
| // TODO: try recreating testcontext |
| return; |
| } |
| |
| markInvalProcessed(); |
| |
| // draw into the canvas of this surface |
| this->visitLayers([](Layer* layer) { layer->onPrePaint(); }); |
| this->visitLayers([=](Layer* layer) { layer->onPaint(backbuffer.get()); }); |
| |
| backbuffer->flushAndSubmit(); |
| |
| fWindowContext->swapBuffers(); |
| } |
| |
| void Window::onResize(int w, int h) { |
| if (!fWindowContext) { |
| return; |
| } |
| fWindowContext->resize(w, h); |
| this->visitLayers([=](Layer* layer) { layer->onResize(w, h); }); |
| } |
| |
| void Window::onActivate(bool isActive) { |
| if (fWindowContext) { |
| fWindowContext->activate(isActive); |
| } |
| fIsActive = isActive; |
| } |
| |
| int Window::width() const { |
| if (!fWindowContext) { |
| return 0; |
| } |
| return fWindowContext->width(); |
| } |
| |
| int Window::height() const { |
| if (!fWindowContext) { |
| return 0; |
| } |
| return fWindowContext->height(); |
| } |
| |
| void Window::setRequestedDisplayParams(const DisplayParams& params, bool /* allowReattach */) { |
| fRequestedDisplayParams = params; |
| if (fWindowContext) { |
| fWindowContext->setDisplayParams(fRequestedDisplayParams); |
| } |
| } |
| |
| int Window::sampleCount() const { |
| if (!fWindowContext) { |
| return 0; |
| } |
| return fWindowContext->sampleCount(); |
| } |
| |
| int Window::stencilBits() const { |
| if (!fWindowContext) { |
| return -1; |
| } |
| return fWindowContext->stencilBits(); |
| } |
| |
| GrDirectContext* Window::directContext() const { |
| if (!fWindowContext) { |
| return nullptr; |
| } |
| return fWindowContext->directContext(); |
| } |
| |
| void Window::inval() { |
| if (!fWindowContext) { |
| return; |
| } |
| if (!fIsContentInvalidated) { |
| fIsContentInvalidated = true; |
| onInval(); |
| } |
| } |
| |
| void Window::markInvalProcessed() { |
| fIsContentInvalidated = false; |
| } |
| |
| } // namespace sk_app |