allow GMs to animate

samplecode/SampleApp.cpp

 /*
  * 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 "SampleApp.h"
 
 #include "OverView.h"
@@ skipping 644 matching lines @@
     if (view) {
         SkEvent evt(gTitleEvtName);
         if (view->doQuery(&evt)) {
             title->set(evt.findString(gTitleEvtName));
             return true;
         }
     }
     return false;
 }
 
+bool SampleWindow::sendAnimatePulse() {
+    SkView* view = curr_view(this);
+    if (SampleView::IsSampleView(view)) {
+        if (fDoAnimate) {
+            SkMSec now = SkTime::GetMSecs();
+            return ((SampleView*)view)->animatePulse(now);
+        } else {
+            // 0 signals the view that we are no longer animating
+            ((SampleView*)view)->animatePulse(0);
+        }
+    }
+    return false;
+}
+
 void SampleWindow::setZoomCenter(float x, float y)
 {
     fZoomCenterX = x;
     fZoomCenterY = y;
 }
 
 bool SampleWindow::zoomIn()
 {
     // Arbitrarily decided
     if (fFatBitsScale == 25) return false;
@@ skipping 141 matching lines @@
 
     fDeviceType = kRaster_DeviceType;
 
 #if DEFAULT_TO_GPU
     fDeviceType = kGPU_DeviceType;
 #endif
 #if SK_ANGLE && DEFAULT_TO_ANGLE
     fDeviceType = kANGLE_DeviceType;
 #endif
 
+    fDoAnimate = false;
     fUseClip = false;
     fNClip = false;
     fAnimating = false;
     fRotate = false;
     fRotateAnimTime = 0;
     fPerspAnim = false;
     fPerspAnimTime = 0;
     fRequestGrabImage = false;
     fPipeState = SkOSMenu::kOffState;
     fTilingMode = kNo_Tiling;
@@ skipping 287 matching lines @@
     }
     if (fMagnify && !fSaveToPdf) {
         magnify(canvas);
     }
 
     if (fMeasureFPS && fMeasureFPS_Time) {
         this->updateTitle();
         this->postInvalDelay();
     }
 
+    if (this->sendAnimatePulse()) {
+        this->inval(NULL);
+    }
+
     // do this last
     fDevManager->publishCanvas(fDeviceType, canvas, this);
 }
 
 static float clipW = 200;
 static float clipH = 200;
 void SampleWindow::magnify(SkCanvas* canvas) {
     SkRect r;
     int count = canvas->save();
 
@@ skipping 559 matching lines @@
             fScrollTestX = fScrollTestY = 0;
         } else {
             fScrollTestX += dx;
             fScrollTestY += dy;
         }
         this->inval(NULL);
         return true;
     }
 
     switch (uni) {
+        case ' ':
+            fDoAnimate = !fDoAnimate;
+            if (this->sendAnimatePulse()) {
+                this->inval(NULL);
+            }
+            break;
         case 'B':
             post_event_to_sink(SkNEW_ARGS(SkEvent, ("PictFileView::toggleBBox")), curr_view(this));
             // Cannot call updateTitle() synchronously, because the toggleBBox event is still in
             // the queue.
             post_event_to_sink(SkNEW_ARGS(SkEvent, (gUpdateWindowTitleEvtName)), this);
             this->inval(NULL);
             break;
         case 'D':
             toggleDistanceFieldFonts();
             break;
@@ skipping 698 matching lines @@
     setenv("ANDROID_ROOT", "/android/device/data", 0);
 #endif
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 void application_term() {
     SkEvent::Term();
     SkGraphics::Term();
 }