[apps/stats] Abstract multiple data view and controller

apps/statistics/multiple_data_view.cpp

@@ -0,0 +1,102 @@
+#include "multiple_data_view.h"
+#include <assert.h>
+
+using namespace Shared;
+
+namespace Statistics {
+
+void MultipleDataView::reload() {
+  layoutSubviews();
+  for (int i = 0; i < Store::k_numberOfSeries; i++) {
+    dataViewAtIndex(i)->reload();
+  }
+}
+
+int MultipleDataView::indexOfSubviewAtSeries(int series) {
+  int displayedSubviewIndex = 0;
+  for (int i = 0; i < Store::k_numberOfSeries; i++) {
+    if (!m_store->seriesIsEmpty(i)) {
+     if (i == series) {
+        return displayedSubviewIndex;
+     }
+     displayedSubviewIndex++;
+    } else if (i == series) {
+      return -1;
+    }
+  }
+  assert(false);
+  return -1;
+}
+
+void MultipleDataView::selectDataView(int index) {
+  changeDataViewSelection(index, true);
+}
+
+void MultipleDataView::deselectDataView(int index) {
+  changeDataViewSelection(index, false);
+}
+
+void MultipleDataView::drawRect(KDContext * ctx, KDRect rect) const {
+  if (!m_displayBanner) {
+    ctx->fillRect(bannerFrame(), KDColorWhite);
+  }
+}
+
+int MultipleDataView::numberOfSubviews() const {
+  int result = m_store->numberOfNonEmptySeries();
+  assert(result <= Store::k_numberOfSeries);
+  return result + 1; // +1 for the banner view
+}
+
+KDRect MultipleDataView::bannerFrame() const {
+  KDCoordinate bannerHeight = bannerView()->minimalSizeForOptimalDisplay().height();
+  KDRect frame = KDRect(0, bounds().height() - bannerHeight, bounds().width(), bannerHeight);
+  return frame;
+}
+
+View * MultipleDataView::subviewAtIndex(int index) {
+  if (index == numberOfSubviews() -1) {
+    return editableBannerView();
+  }
+  int seriesIndex = 0;
+  int nonEmptySeriesIndex = -1;
+  while (seriesIndex < Store::k_numberOfSeries) {
+    if (!m_store->seriesIsEmpty(seriesIndex)) {
+      nonEmptySeriesIndex++;
+      if (nonEmptySeriesIndex == index) {
+        return dataViewAtIndex(seriesIndex);
+      }
+    }
+    seriesIndex++;
+  }
+  assert(false);
+  return nullptr;
+}
+
+void MultipleDataView::layoutSubviews() {
+  int numberDataSubviews = m_store->numberOfNonEmptySeries();
+  assert(numberDataSubviews > 0);
+  KDCoordinate bannerHeight = bannerFrame().height();
+  KDCoordinate subviewHeight = (bounds().height() - bannerHeight)/numberDataSubviews;
+  int displayedSubviewIndex = 0;
+  for (int i = 0; i < Store::k_numberOfSeries; i++) {
+    if (!m_store->seriesIsEmpty(i)) {
+      CurveView * dataView = dataViewAtIndex(i);
+      KDRect frame = KDRect(0, displayedSubviewIndex*subviewHeight, bounds().width(), subviewHeight);
+      dataView->setFrame(frame);
+      displayedSubviewIndex++;
+    }
+  }
+  if (m_displayBanner) {
+    editableBannerView()->setFrame(bannerFrame());
+  } else {
+    KDRect frame = KDRect(0, bounds().height() - bannerHeight, bounds().width(), 0);
+    editableBannerView()->setFrame(frame);
+  }
+}
+
+void MultipleDataView::changeDataViewSelection(int index, bool select) {
+  dataViewAtIndex(index)->selectMainView(select);
+}
+
+}