| |
| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #include "SkWidgetViews.h" |
| #include "SkAnimator.h" |
| #include "SkCanvas.h" |
| #include "SkPaint.h" |
| #include "SkStream.h" |
| #include "SkSystemEventTypes.h" |
| |
| /* |
| I have moved this to SkWidgetViews.h |
| enum SkinEnum { |
| kButton_SkinEnum, |
| kProgress_SkinEnum, |
| kScroll_SkinEnum, |
| kStaticText_SkinEnum, |
| |
| kSkinEnumCount |
| }; |
| */ |
| |
| const char* get_skin_enum_path(SkinEnum se) |
| { |
| SkASSERT((unsigned)se < kSkinEnumCount); |
| |
| static const char* gSkinPaths[] = { |
| "common/default/default/skins/border3.xml", |
| "common/default/default/skins/button.xml", |
| "common/default/default/skins/progressBar.xml", |
| "common/default/default/skins/scrollBar.xml", |
| "common/default/default/skins/statictextpaint.xml" |
| }; |
| |
| return gSkinPaths[se]; |
| } |
| |
| void init_skin_anim(const char path[], SkAnimator* anim) |
| { |
| SkASSERT(path && anim); |
| |
| SkFILEStream stream(path); |
| |
| if (!stream.isValid()) |
| { |
| SkDEBUGF(("init_skin_anim: loading skin failed <%s>\n", path)); |
| sk_throw(); |
| } |
| |
| if (!anim->decodeStream(&stream)) |
| { |
| SkDEBUGF(("init_skin_anim: decoding skin failed <%s>\n", path)); |
| sk_throw(); |
| } |
| } |
| |
| void init_skin_anim(SkinEnum se, SkAnimator* anim) |
| { |
| init_skin_anim(get_skin_enum_path(se), anim); |
| } |
| |
| void init_skin_paint(SkinEnum se, SkPaint* paint) |
| { |
| SkASSERT(paint); |
| |
| SkAnimator anim; |
| SkCanvas canvas; |
| |
| init_skin_anim(se, &anim); |
| anim.draw(&canvas, paint, 0); |
| } |
| |
| void inflate_paint(const SkDOM& dom, const SkDOM::Node* node, SkPaint* paint) |
| { |
| SkASSERT(paint); |
| |
| SkAnimator anim; |
| SkCanvas canvas; |
| |
| if (!anim.decodeDOM(dom, node)) |
| { |
| SkDEBUGF(("inflate_paint: decoding dom failed\n")); |
| SkDEBUGCODE(dom.dump(node);) |
| sk_throw(); |
| } |
| anim.draw(&canvas, paint, 0); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////////////////// |
| |
| SkWidgetView::SkWidgetView() : SkView(SkView::kFocusable_Mask | SkView::kEnabled_Mask) |
| { |
| } |
| |
| const char* SkWidgetView::getLabel() const |
| { |
| return fLabel.c_str(); |
| } |
| |
| void SkWidgetView::getLabel(SkString* label) const |
| { |
| if (label) |
| *label = fLabel; |
| } |
| |
| void SkWidgetView::setLabel(const char label[]) |
| { |
| this->setLabel(label, label ? strlen(label) : 0); |
| } |
| |
| void SkWidgetView::setLabel(const char label[], size_t len) |
| { |
| if ((label == NULL && fLabel.size() != 0) || !fLabel.equals(label, len)) |
| { |
| SkString tmp(label, len); |
| |
| this->onLabelChange(fLabel.c_str(), tmp.c_str()); |
| fLabel.swap(tmp); |
| } |
| } |
| |
| void SkWidgetView::setLabel(const SkString& label) |
| { |
| if (fLabel != label) |
| { |
| this->onLabelChange(fLabel.c_str(), label.c_str()); |
| fLabel = label; |
| } |
| } |
| |
| bool SkWidgetView::postWidgetEvent() |
| { |
| if (!fEvent.isType("")) |
| { |
| SkEvent evt(fEvent); // make a copy since onPrepareWidgetEvent may edit the event |
| |
| if (this->onPrepareWidgetEvent(&evt)) |
| { |
| SkDEBUGCODE(evt.dump("SkWidgetView::postWidgetEvent");) |
| |
| this->postToListeners(evt); // wonder if this should return true if there are > 0 listeners... |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /*virtual*/ void SkWidgetView::onInflate(const SkDOM& dom, const SkDOM::Node* node) |
| { |
| this->INHERITED::onInflate(dom, node); |
| |
| const char* label = dom.findAttr(node, "label"); |
| if (label) |
| this->setLabel(label); |
| |
| if ((node = dom.getFirstChild(node, "event")) != NULL) |
| fEvent.inflate(dom, node); |
| } |
| |
| /*virtual*/ void SkWidgetView::onLabelChange(const char oldLabel[], const char newLabel[]) |
| { |
| this->inval(NULL); |
| } |
| |
| static const char gWidgetEventSinkIDSlotName[] = "sk-widget-sinkid-slot"; |
| |
| /*virtual*/ bool SkWidgetView::onPrepareWidgetEvent(SkEvent* evt) |
| { |
| evt->setS32(gWidgetEventSinkIDSlotName, this->getSinkID()); |
| return true; |
| } |
| |
| SkEventSinkID SkWidgetView::GetWidgetEventSinkID(const SkEvent& evt) |
| { |
| int32_t sinkID; |
| |
| return evt.findS32(gWidgetEventSinkIDSlotName, &sinkID) ? (SkEventSinkID)sinkID : 0; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| /*virtual*/ bool SkButtonView::onEvent(const SkEvent& evt) |
| { |
| if (evt.isType(SK_EventType_Key) && evt.getFast32() == kOK_SkKey) |
| { |
| this->postWidgetEvent(); |
| return true; |
| } |
| return this->INHERITED::onEvent(evt); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| SkCheckButtonView::SkCheckButtonView() : fCheckState(kOff_CheckState) |
| { |
| } |
| |
| void SkCheckButtonView::setCheckState(CheckState state) |
| { |
| SkASSERT((unsigned)state <= kUnknown_CheckState); |
| |
| if (fCheckState != state) |
| { |
| this->onCheckStateChange(this->getCheckState(), state); |
| fCheckState = SkToU8(state); |
| } |
| } |
| |
| /*virtual*/ void SkCheckButtonView::onCheckStateChange(CheckState oldState, CheckState newState) |
| { |
| this->inval(NULL); |
| } |
| |
| /*virtual*/ void SkCheckButtonView::onInflate(const SkDOM& dom, const SkDOM::Node* node) |
| { |
| this->INHERITED::onInflate(dom, node); |
| |
| int index = dom.findList(node, "check-state", "off,on,unknown"); |
| if (index >= 0) |
| this->setCheckState((CheckState)index); |
| } |
| |
| static const char gCheckStateSlotName[] = "sk-checkbutton-check-slot"; |
| |
| /*virtual*/ bool SkCheckButtonView::onPrepareWidgetEvent(SkEvent* evt) |
| { |
| // could check if we're "disabled", and return false... |
| |
| evt->setS32(gCheckStateSlotName, this->getCheckState()); |
| return true; |
| } |
| |
| bool SkCheckButtonView::GetWidgetEventCheckState(const SkEvent& evt, CheckState* state) |
| { |
| int32_t state32; |
| |
| if (evt.findS32(gCheckStateSlotName, &state32)) |
| { |
| if (state) |
| *state = (CheckState)state32; |
| return true; |
| } |
| return false; |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| /////////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| #include "SkTime.h" |
| #include <stdio.h> |
| |
| class SkAnimButtonView : public SkButtonView { |
| public: |
| SkAnimButtonView() |
| { |
| fAnim.setHostEventSink(this); |
| init_skin_anim(kButton_SkinEnum, &fAnim); |
| } |
| |
| protected: |
| virtual void onLabelChange(const char oldLabel[], const char newLabel[]) |
| { |
| this->INHERITED::onLabelChange(oldLabel, newLabel); |
| |
| SkEvent evt("user"); |
| evt.setString("id", "setLabel"); |
| evt.setString("LABEL", newLabel); |
| fAnim.doUserEvent(evt); |
| } |
| |
| virtual void onFocusChange(bool gainFocus) |
| { |
| this->INHERITED::onFocusChange(gainFocus); |
| |
| SkEvent evt("user"); |
| evt.setString("id", "setFocus"); |
| evt.setS32("FOCUS", gainFocus); |
| fAnim.doUserEvent(evt); |
| } |
| |
| virtual void onSizeChange() |
| { |
| this->INHERITED::onSizeChange(); |
| |
| SkEvent evt("user"); |
| evt.setString("id", "setDim"); |
| evt.setScalar("dimX", this->width()); |
| evt.setScalar("dimY", this->height()); |
| fAnim.doUserEvent(evt); |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) |
| { |
| SkPaint paint; |
| SkAnimator::DifferenceType diff = fAnim.draw(canvas, &paint, SkTime::GetMSecs()); |
| |
| if (diff == SkAnimator::kDifferent) |
| this->inval(NULL); |
| else if (diff == SkAnimator::kPartiallyDifferent) |
| { |
| SkRect bounds; |
| fAnim.getInvalBounds(&bounds); |
| this->inval(&bounds); |
| } |
| } |
| |
| virtual bool onEvent(const SkEvent& evt) |
| { |
| if (evt.isType(SK_EventType_Inval)) |
| { |
| this->inval(NULL); |
| return true; |
| } |
| if (evt.isType("recommendDim")) |
| { |
| SkScalar height; |
| |
| if (evt.findScalar("y", &height)) |
| this->setHeight(height); |
| return true; |
| } |
| return this->INHERITED::onEvent(evt); |
| } |
| |
| virtual bool onPrepareWidgetEvent(SkEvent* evt) |
| { |
| if (this->INHERITED::onPrepareWidgetEvent(evt)) |
| { |
| SkEvent e("user"); |
| e.setString("id", "handlePress"); |
| (void)fAnim.doUserEvent(e); |
| return true; |
| } |
| return false; |
| } |
| |
| private: |
| SkAnimator fAnim; |
| |
| typedef SkButtonView INHERITED; |
| }; |
| |
| //////////////////////////////////////////////////////////////////////////////////////////// |
| //////////////////////////////////////////////////////////////////////////////////////////// |
| |
| SkView* SkWidgetFactory(const char name[]) |
| { |
| if (name == NULL) |
| return NULL; |
| |
| // must be in the same order as the SkSkinWidgetEnum is declared |
| static const char* gNames[] = { |
| "sk-border", |
| "sk-button", |
| "sk-image", |
| "sk-list", |
| "sk-progress", |
| "sk-scroll", |
| "sk-text" |
| |
| }; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); i++) |
| if (!strcmp(gNames[i], name)) |
| return SkWidgetFactory((SkWidgetEnum)i); |
| |
| return NULL; |
| } |
| |
| #include "SkImageView.h" |
| #include "SkProgressBarView.h" |
| #include "SkScrollBarView.h" |
| #include "SkBorderView.h" |
| |
| SkView* SkWidgetFactory(SkWidgetEnum sw) |
| { |
| switch (sw) { |
| case kBorder_WidgetEnum: |
| return new SkBorderView; |
| case kButton_WidgetEnum: |
| return new SkAnimButtonView; |
| case kImage_WidgetEnum: |
| return new SkImageView; |
| case kList_WidgetEnum: |
| return new SkListView; |
| case kProgress_WidgetEnum: |
| return new SkProgressBarView; |
| case kScroll_WidgetEnum: |
| return new SkScrollBarView; |
| case kText_WidgetEnum: |
| return new SkStaticTextView; |
| default: |
| SkDEBUGFAIL("unknown enum passed to SkWidgetFactory"); |
| break; |
| } |
| return NULL; |
| } |