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- /*
- * 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() {}
- void Window::detach() {
- delete fWindowContext;
- 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, ModifierKey modifiers) {
- return this->signalLayers([=](Layer* layer) { return layer->onChar(c, modifiers); });
- }
- bool Window::onKey(Key key, InputState state, ModifierKey modifiers) {
- return this->signalLayers([=](Layer* layer) { return layer->onKey(key, state, modifiers); });
- }
- bool Window::onMouse(int x, int y, InputState state, ModifierKey modifiers) {
- return this->signalLayers([=](Layer* layer) { return layer->onMouse(x, y, state, modifiers); });
- }
- bool Window::onMouseWheel(float delta, ModifierKey modifiers) {
- return this->signalLayers([=](Layer* layer) { return layer->onMouseWheel(delta, modifiers); });
- }
- bool Window::onTouch(intptr_t owner, InputState state, float x, float y) {
- return this->signalLayers([=](Layer* layer) { return layer->onTouch(owner, state, 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;
- }
- markInvalProcessed();
- this->visitLayers([](Layer* layer) { layer->onPrePaint(); });
- sk_sp<SkSurface> backbuffer = fWindowContext->getBackbufferSurface();
- if (backbuffer) {
- // draw into the canvas of this surface
- this->visitLayers([=](Layer* layer) { layer->onPaint(backbuffer.get()); });
- backbuffer->flush();
- fWindowContext->swapBuffers();
- } else {
- printf("no backbuffer!?\n");
- // try recreating testcontext
- }
- }
- void Window::onResize(int w, int h) {
- if (!fWindowContext) {
- return;
- }
- fWindowContext->resize(w, h);
- this->visitLayers([=](Layer* layer) { layer->onResize(w, h); });
- }
- 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();
- }
- GrContext* Window::getGrContext() const {
- if (!fWindowContext) {
- return nullptr;
- }
- return fWindowContext->getGrContext();
- }
- void Window::inval() {
- if (!fWindowContext) {
- return;
- }
- if (!fIsContentInvalidated) {
- fIsContentInvalidated = true;
- onInval();
- }
- }
- void Window::markInvalProcessed() {
- fIsContentInvalidated = false;
- }
- } // namespace sk_app
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