211511237f
The default behavior is to not let the user move the slide to the top or left. Implement for SampleSlide and stub out for NIMASlide (which isn't so easy to implement). Change-Id: I16074e704f4086199932d83e28c28d1ee39fbd9d Reviewed-on: https://skia-review.googlesource.com/151600 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Ben Wagner <bungeman@google.com>
93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
/*
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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 "SampleSlide.h"
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#include "SkCanvas.h"
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#include "SkCommonFlags.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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using namespace sk_app;
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SampleSlide::SampleSlide(const SampleFactory factory)
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: fSampleFactory(factory)
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, fClick(nullptr) {
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sk_sp<Sample> sample(factory());
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Sample::RequestTitle(sample.get(), &fName);
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}
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SampleSlide::~SampleSlide() { delete fClick; }
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SkISize SampleSlide::getDimensions() const {
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return SkISize::Make(SkScalarCeilToInt(fSample->width()), SkScalarCeilToInt(fSample->height()));
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}
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void SampleSlide::draw(SkCanvas* canvas) {
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SkASSERT(fSample);
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fSample->draw(canvas);
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}
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void SampleSlide::load(SkScalar winWidth, SkScalar winHeight) {
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fSample.reset(fSampleFactory());
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fSample->setSize(winWidth, winHeight);
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}
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void SampleSlide::unload() {
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fSample.reset();
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}
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bool SampleSlide::onChar(SkUnichar c) {
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if (!fSample) {
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return false;
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}
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Sample::Event evt(Sample::kCharEvtName);
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evt.setFast32(c);
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return fSample->doQuery(&evt);
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}
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bool SampleSlide::onMouse(SkScalar x, SkScalar y, Window::InputState state,
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uint32_t modifiers) {
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// map to Sample::Click modifiers
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unsigned modifierKeys = 0;
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modifierKeys |= (modifiers & Window::kShift_ModifierKey) ? Sample::Click::kShift_ModifierKey : 0;
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modifierKeys |= (modifiers & Window::kControl_ModifierKey) ? Sample::Click::kControl_ModifierKey : 0;
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modifierKeys |= (modifiers & Window::kOption_ModifierKey) ? Sample::Click::kOption_ModifierKey : 0;
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modifierKeys |= (modifiers & Window::kCommand_ModifierKey) ? Sample::Click::kCommand_ModifierKey : 0;
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bool handled = false;
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switch (state) {
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case Window::kDown_InputState: {
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delete fClick;
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fClick = fSample->findClickHandler(SkIntToScalar(x), SkIntToScalar(y), modifierKeys);
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if (fClick) {
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Sample::DoClickDown(fClick, x, y, modifierKeys);
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handled = true;
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}
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break;
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}
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case Window::kMove_InputState: {
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if (fClick) {
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Sample::DoClickMoved(fClick, x, y, modifierKeys);
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handled = true;
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}
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break;
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}
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case Window::kUp_InputState: {
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if (fClick) {
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Sample::DoClickUp(fClick, x, y, modifierKeys);
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delete fClick;
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fClick = nullptr;
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handled = true;
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}
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break;
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}
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}
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return handled;
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}
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