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155 lines
3.8 KiB
155 lines
3.8 KiB
/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Window.h"
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#include "SkSurface.h"
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#include "SkCanvas.h"
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#include "WindowContext.h"
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namespace sk_app {
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Window::Window() {}
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void Window::detach() {
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delete fWindowContext;
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fWindowContext = nullptr;
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}
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void Window::visitLayers(std::function<void(Layer*)> visitor) {
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for (int i = 0; i < fLayers.count(); ++i) {
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if (fLayers[i]->fActive) {
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visitor(fLayers[i]);
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}
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}
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}
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bool Window::signalLayers(std::function<bool(Layer*)> visitor) {
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for (int i = fLayers.count() - 1; i >= 0; --i) {
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if (fLayers[i]->fActive && visitor(fLayers[i])) {
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return true;
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}
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}
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return false;
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}
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void Window::onBackendCreated() {
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this->visitLayers([](Layer* layer) { layer->onBackendCreated(); });
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}
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bool Window::onChar(SkUnichar c, uint32_t modifiers) {
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return this->signalLayers([=](Layer* layer) { return layer->onChar(c, modifiers); });
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}
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bool Window::onKey(Key key, InputState state, uint32_t modifiers) {
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return this->signalLayers([=](Layer* layer) { return layer->onKey(key, state, modifiers); });
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}
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bool Window::onMouse(int x, int y, InputState state, uint32_t modifiers) {
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return this->signalLayers([=](Layer* layer) { return layer->onMouse(x, y, state, modifiers); });
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}
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bool Window::onMouseWheel(float delta, uint32_t modifiers) {
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return this->signalLayers([=](Layer* layer) { return layer->onMouseWheel(delta, modifiers); });
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}
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bool Window::onTouch(intptr_t owner, InputState state, float x, float y) {
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return this->signalLayers([=](Layer* layer) { return layer->onTouch(owner, state, x, y); });
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}
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void Window::onUIStateChanged(const SkString& stateName, const SkString& stateValue) {
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this->visitLayers([=](Layer* layer) { layer->onUIStateChanged(stateName, stateValue); });
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}
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void Window::onPaint() {
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if (!fWindowContext) {
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return;
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}
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markInvalProcessed();
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sk_sp<SkSurface> backbuffer = fWindowContext->getBackbufferSurface();
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if (backbuffer) {
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// draw into the canvas of this surface
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SkCanvas* canvas = backbuffer->getCanvas();
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this->visitLayers([](Layer* layer) { layer->onPrePaint(); });
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this->visitLayers([=](Layer* layer) { layer->onPaint(canvas); });
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canvas->flush();
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fWindowContext->swapBuffers();
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} else {
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printf("no backbuffer!?\n");
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// try recreating testcontext
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}
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}
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void Window::onResize(int w, int h) {
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if (!fWindowContext) {
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return;
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}
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fWindowContext->resize(w, h);
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this->visitLayers([=](Layer* layer) { layer->onResize(w, h); });
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}
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int Window::width() {
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if (!fWindowContext) {
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return 0;
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}
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return fWindowContext->width();
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}
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int Window::height() {
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if (!fWindowContext) {
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return 0;
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}
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return fWindowContext->height();
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}
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void Window::setRequestedDisplayParams(const DisplayParams& params, bool /* allowReattach */) {
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fRequestedDisplayParams = params;
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if (fWindowContext) {
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fWindowContext->setDisplayParams(fRequestedDisplayParams);
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}
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}
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int Window::sampleCount() const {
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if (!fWindowContext) {
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return 0;
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}
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return fWindowContext->sampleCount();
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}
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int Window::stencilBits() const {
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if (!fWindowContext) {
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return -1;
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}
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return fWindowContext->stencilBits();
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}
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GrContext* Window::getGrContext() const {
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if (!fWindowContext) {
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return nullptr;
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}
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return fWindowContext->getGrContext();
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}
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void Window::inval() {
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if (!fWindowContext) {
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return;
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}
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if (!fIsContentInvalidated) {
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fIsContentInvalidated = true;
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onInval();
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}
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}
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void Window::markInvalProcessed() {
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fIsContentInvalidated = false;
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}
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} // namespace sk_app
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