1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/views/animated/SkWidgetViews.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,398 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2011 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +#include "SkWidgetViews.h"
1.12 +#include "SkAnimator.h"
1.13 +#include "SkCanvas.h"
1.14 +#include "SkPaint.h"
1.15 +#include "SkStream.h"
1.16 +#include "SkSystemEventTypes.h"
1.17 +
1.18 +/*
1.19 +I have moved this to SkWidgetViews.h
1.20 +enum SkinEnum {
1.21 + kButton_SkinEnum,
1.22 + kProgress_SkinEnum,
1.23 + kScroll_SkinEnum,
1.24 + kStaticText_SkinEnum,
1.25 +
1.26 + kSkinEnumCount
1.27 +};
1.28 +*/
1.29 +
1.30 +const char* get_skin_enum_path(SkinEnum se)
1.31 +{
1.32 + SkASSERT((unsigned)se < kSkinEnumCount);
1.33 +
1.34 + static const char* gSkinPaths[] = {
1.35 + "common/default/default/skins/border3.xml",
1.36 + "common/default/default/skins/button.xml",
1.37 + "common/default/default/skins/progressBar.xml",
1.38 + "common/default/default/skins/scrollBar.xml",
1.39 + "common/default/default/skins/statictextpaint.xml"
1.40 + };
1.41 +
1.42 + return gSkinPaths[se];
1.43 +}
1.44 +
1.45 +void init_skin_anim(const char path[], SkAnimator* anim) {
1.46 + SkASSERT(path && anim);
1.47 +
1.48 + SkAutoTUnref<SkStream> stream(SkStream::NewFromFile(path));
1.49 + if (!stream.get()) {
1.50 + SkDEBUGF(("init_skin_anim: loading skin failed <%s>\n", path));
1.51 + sk_throw();
1.52 + }
1.53 +
1.54 + if (!anim->decodeStream(stream)) {
1.55 + SkDEBUGF(("init_skin_anim: decoding skin failed <%s>\n", path));
1.56 + sk_throw();
1.57 + }
1.58 +}
1.59 +
1.60 +void init_skin_anim(SkinEnum se, SkAnimator* anim)
1.61 +{
1.62 + init_skin_anim(get_skin_enum_path(se), anim);
1.63 +}
1.64 +
1.65 +void init_skin_paint(SkinEnum se, SkPaint* paint)
1.66 +{
1.67 + SkASSERT(paint);
1.68 +
1.69 + SkAnimator anim;
1.70 + SkCanvas canvas;
1.71 +
1.72 + init_skin_anim(se, &anim);
1.73 + anim.draw(&canvas, paint, 0);
1.74 +}
1.75 +
1.76 +void inflate_paint(const SkDOM& dom, const SkDOM::Node* node, SkPaint* paint)
1.77 +{
1.78 + SkASSERT(paint);
1.79 +
1.80 + SkAnimator anim;
1.81 + SkCanvas canvas;
1.82 +
1.83 + if (!anim.decodeDOM(dom, node))
1.84 + {
1.85 + SkDEBUGF(("inflate_paint: decoding dom failed\n"));
1.86 + SkDEBUGCODE(dom.dump(node);)
1.87 + sk_throw();
1.88 + }
1.89 + anim.draw(&canvas, paint, 0);
1.90 +}
1.91 +
1.92 +////////////////////////////////////////////////////////////////////////////////////////
1.93 +
1.94 +SkWidgetView::SkWidgetView() : SkView(SkView::kFocusable_Mask | SkView::kEnabled_Mask)
1.95 +{
1.96 +}
1.97 +
1.98 +const char* SkWidgetView::getLabel() const
1.99 +{
1.100 + return fLabel.c_str();
1.101 +}
1.102 +
1.103 +void SkWidgetView::getLabel(SkString* label) const
1.104 +{
1.105 + if (label)
1.106 + *label = fLabel;
1.107 +}
1.108 +
1.109 +void SkWidgetView::setLabel(const char label[])
1.110 +{
1.111 + this->setLabel(label, label ? strlen(label) : 0);
1.112 +}
1.113 +
1.114 +void SkWidgetView::setLabel(const char label[], size_t len)
1.115 +{
1.116 + if ((label == NULL && fLabel.size() != 0) || !fLabel.equals(label, len))
1.117 + {
1.118 + SkString tmp(label, len);
1.119 +
1.120 + this->onLabelChange(fLabel.c_str(), tmp.c_str());
1.121 + fLabel.swap(tmp);
1.122 + }
1.123 +}
1.124 +
1.125 +void SkWidgetView::setLabel(const SkString& label)
1.126 +{
1.127 + if (fLabel != label)
1.128 + {
1.129 + this->onLabelChange(fLabel.c_str(), label.c_str());
1.130 + fLabel = label;
1.131 + }
1.132 +}
1.133 +
1.134 +bool SkWidgetView::postWidgetEvent()
1.135 +{
1.136 + if (!fEvent.isType(""))
1.137 + {
1.138 + SkEvent evt(fEvent); // make a copy since onPrepareWidgetEvent may edit the event
1.139 +
1.140 + if (this->onPrepareWidgetEvent(&evt))
1.141 + {
1.142 + SkDEBUGCODE(evt.dump("SkWidgetView::postWidgetEvent");)
1.143 +
1.144 + this->postToListeners(evt); // wonder if this should return true if there are > 0 listeners...
1.145 + return true;
1.146 + }
1.147 + }
1.148 + return false;
1.149 +}
1.150 +
1.151 +/*virtual*/ void SkWidgetView::onInflate(const SkDOM& dom, const SkDOM::Node* node)
1.152 +{
1.153 + this->INHERITED::onInflate(dom, node);
1.154 +
1.155 + const char* label = dom.findAttr(node, "label");
1.156 + if (label)
1.157 + this->setLabel(label);
1.158 +
1.159 + if ((node = dom.getFirstChild(node, "event")) != NULL)
1.160 + fEvent.inflate(dom, node);
1.161 +}
1.162 +
1.163 +/*virtual*/ void SkWidgetView::onLabelChange(const char oldLabel[], const char newLabel[])
1.164 +{
1.165 + this->inval(NULL);
1.166 +}
1.167 +
1.168 +static const char gWidgetEventSinkIDSlotName[] = "sk-widget-sinkid-slot";
1.169 +
1.170 +/*virtual*/ bool SkWidgetView::onPrepareWidgetEvent(SkEvent* evt)
1.171 +{
1.172 + evt->setS32(gWidgetEventSinkIDSlotName, this->getSinkID());
1.173 + return true;
1.174 +}
1.175 +
1.176 +SkEventSinkID SkWidgetView::GetWidgetEventSinkID(const SkEvent& evt)
1.177 +{
1.178 + int32_t sinkID;
1.179 +
1.180 + return evt.findS32(gWidgetEventSinkIDSlotName, &sinkID) ? (SkEventSinkID)sinkID : 0;
1.181 +}
1.182 +
1.183 +///////////////////////////////////////////////////////////////////////////////////////////////////
1.184 +
1.185 +/*virtual*/ bool SkButtonView::onEvent(const SkEvent& evt)
1.186 +{
1.187 + if (evt.isType(SK_EventType_Key) && evt.getFast32() == kOK_SkKey)
1.188 + {
1.189 + this->postWidgetEvent();
1.190 + return true;
1.191 + }
1.192 + return this->INHERITED::onEvent(evt);
1.193 +}
1.194 +
1.195 +///////////////////////////////////////////////////////////////////////////////////////////////////
1.196 +
1.197 +SkCheckButtonView::SkCheckButtonView() : fCheckState(kOff_CheckState)
1.198 +{
1.199 +}
1.200 +
1.201 +void SkCheckButtonView::setCheckState(CheckState state)
1.202 +{
1.203 + SkASSERT((unsigned)state <= kUnknown_CheckState);
1.204 +
1.205 + if (fCheckState != state)
1.206 + {
1.207 + this->onCheckStateChange(this->getCheckState(), state);
1.208 + fCheckState = SkToU8(state);
1.209 + }
1.210 +}
1.211 +
1.212 +/*virtual*/ void SkCheckButtonView::onCheckStateChange(CheckState oldState, CheckState newState)
1.213 +{
1.214 + this->inval(NULL);
1.215 +}
1.216 +
1.217 +/*virtual*/ void SkCheckButtonView::onInflate(const SkDOM& dom, const SkDOM::Node* node)
1.218 +{
1.219 + this->INHERITED::onInflate(dom, node);
1.220 +
1.221 + int index = dom.findList(node, "check-state", "off,on,unknown");
1.222 + if (index >= 0)
1.223 + this->setCheckState((CheckState)index);
1.224 +}
1.225 +
1.226 +static const char gCheckStateSlotName[] = "sk-checkbutton-check-slot";
1.227 +
1.228 +/*virtual*/ bool SkCheckButtonView::onPrepareWidgetEvent(SkEvent* evt)
1.229 +{
1.230 + // could check if we're "disabled", and return false...
1.231 +
1.232 + evt->setS32(gCheckStateSlotName, this->getCheckState());
1.233 + return true;
1.234 +}
1.235 +
1.236 +bool SkCheckButtonView::GetWidgetEventCheckState(const SkEvent& evt, CheckState* state)
1.237 +{
1.238 + int32_t state32;
1.239 +
1.240 + if (evt.findS32(gCheckStateSlotName, &state32))
1.241 + {
1.242 + if (state)
1.243 + *state = (CheckState)state32;
1.244 + return true;
1.245 + }
1.246 + return false;
1.247 +}
1.248 +
1.249 +///////////////////////////////////////////////////////////////////////////////////////////////////
1.250 +///////////////////////////////////////////////////////////////////////////////////////////////////
1.251 +///////////////////////////////////////////////////////////////////////////////////////////////////
1.252 +
1.253 +#include "SkTime.h"
1.254 +#include <stdio.h>
1.255 +
1.256 +class SkAnimButtonView : public SkButtonView {
1.257 +public:
1.258 + SkAnimButtonView()
1.259 + {
1.260 + fAnim.setHostEventSink(this);
1.261 + init_skin_anim(kButton_SkinEnum, &fAnim);
1.262 + }
1.263 +
1.264 +protected:
1.265 + virtual void onLabelChange(const char oldLabel[], const char newLabel[])
1.266 + {
1.267 + this->INHERITED::onLabelChange(oldLabel, newLabel);
1.268 +
1.269 + SkEvent evt("user");
1.270 + evt.setString("id", "setLabel");
1.271 + evt.setString("LABEL", newLabel);
1.272 + fAnim.doUserEvent(evt);
1.273 + }
1.274 +
1.275 + virtual void onFocusChange(bool gainFocus)
1.276 + {
1.277 + this->INHERITED::onFocusChange(gainFocus);
1.278 +
1.279 + SkEvent evt("user");
1.280 + evt.setString("id", "setFocus");
1.281 + evt.setS32("FOCUS", gainFocus);
1.282 + fAnim.doUserEvent(evt);
1.283 + }
1.284 +
1.285 + virtual void onSizeChange()
1.286 + {
1.287 + this->INHERITED::onSizeChange();
1.288 +
1.289 + SkEvent evt("user");
1.290 + evt.setString("id", "setDim");
1.291 + evt.setScalar("dimX", this->width());
1.292 + evt.setScalar("dimY", this->height());
1.293 + fAnim.doUserEvent(evt);
1.294 + }
1.295 +
1.296 + virtual void onDraw(SkCanvas* canvas)
1.297 + {
1.298 + SkPaint paint;
1.299 + SkAnimator::DifferenceType diff = fAnim.draw(canvas, &paint, SkTime::GetMSecs());
1.300 +
1.301 + if (diff == SkAnimator::kDifferent)
1.302 + this->inval(NULL);
1.303 + else if (diff == SkAnimator::kPartiallyDifferent)
1.304 + {
1.305 + SkRect bounds;
1.306 + fAnim.getInvalBounds(&bounds);
1.307 + this->inval(&bounds);
1.308 + }
1.309 + }
1.310 +
1.311 + virtual bool onEvent(const SkEvent& evt)
1.312 + {
1.313 + if (evt.isType(SK_EventType_Inval))
1.314 + {
1.315 + this->inval(NULL);
1.316 + return true;
1.317 + }
1.318 + if (evt.isType("recommendDim"))
1.319 + {
1.320 + SkScalar height;
1.321 +
1.322 + if (evt.findScalar("y", &height))
1.323 + this->setHeight(height);
1.324 + return true;
1.325 + }
1.326 + return this->INHERITED::onEvent(evt);
1.327 + }
1.328 +
1.329 + virtual bool onPrepareWidgetEvent(SkEvent* evt)
1.330 + {
1.331 + if (this->INHERITED::onPrepareWidgetEvent(evt))
1.332 + {
1.333 + SkEvent e("user");
1.334 + e.setString("id", "handlePress");
1.335 + (void)fAnim.doUserEvent(e);
1.336 + return true;
1.337 + }
1.338 + return false;
1.339 + }
1.340 +
1.341 +private:
1.342 + SkAnimator fAnim;
1.343 +
1.344 + typedef SkButtonView INHERITED;
1.345 +};
1.346 +
1.347 +////////////////////////////////////////////////////////////////////////////////////////////
1.348 +////////////////////////////////////////////////////////////////////////////////////////////
1.349 +
1.350 +SkView* SkWidgetFactory(const char name[])
1.351 +{
1.352 + if (name == NULL)
1.353 + return NULL;
1.354 +
1.355 + // must be in the same order as the SkSkinWidgetEnum is declared
1.356 + static const char* gNames[] = {
1.357 + "sk-border",
1.358 + "sk-button",
1.359 + "sk-image",
1.360 + "sk-list",
1.361 + "sk-progress",
1.362 + "sk-scroll",
1.363 + "sk-text"
1.364 +
1.365 + };
1.366 +
1.367 + for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); i++)
1.368 + if (!strcmp(gNames[i], name))
1.369 + return SkWidgetFactory((SkWidgetEnum)i);
1.370 +
1.371 + return NULL;
1.372 +}
1.373 +
1.374 +#include "SkImageView.h"
1.375 +#include "SkProgressBarView.h"
1.376 +#include "SkScrollBarView.h"
1.377 +#include "SkBorderView.h"
1.378 +
1.379 +SkView* SkWidgetFactory(SkWidgetEnum sw)
1.380 +{
1.381 + switch (sw) {
1.382 + case kBorder_WidgetEnum:
1.383 + return new SkBorderView;
1.384 + case kButton_WidgetEnum:
1.385 + return new SkAnimButtonView;
1.386 + case kImage_WidgetEnum:
1.387 + return new SkImageView;
1.388 + case kList_WidgetEnum:
1.389 + return new SkListView;
1.390 + case kProgress_WidgetEnum:
1.391 + return new SkProgressBarView;
1.392 + case kScroll_WidgetEnum:
1.393 + return new SkScrollBarView;
1.394 + case kText_WidgetEnum:
1.395 + return new SkStaticTextView;
1.396 + default:
1.397 + SkDEBUGFAIL("unknown enum passed to SkWidgetFactory");
1.398 + break;
1.399 + }
1.400 + return NULL;
1.401 +}
