[apps/escher] Move ModalViewEmptyController to escher

escher/src/modal_view_empty_controller.cpp

@@ -0,0 +1,81 @@
+#include <escher/modal_view_empty_controller.h>
+#include <apps/i18n.h>
+#include <assert.h>
+
+const KDColor ModalViewEmptyController::ModalViewEmptyView::k_backgroundColor;
+
+// ModalViewEmptyController::ModalViewEmptyView
+void ModalViewEmptyController::ModalViewEmptyView::initMessageViews() {
+  const int numberOfMessageViews = numberOfMessageTextViews();
+  for (int i = 0; i < numberOfMessageViews; i++) {
+    MessageTextView * message = messageTextViewAtIndex(i);
+    message->setFont(k_font);
+    message->setBackgroundColor(k_backgroundColor);
+    float verticalAlignment = 0.5f;
+    if (i == 0) {
+      verticalAlignment = 1.0f;
+    } else if (i == numberOfMessageViews - 1) {
+      verticalAlignment = 0.0f;
+    }
+    message->setAlignment(0.5f, verticalAlignment);
+  }
+}
+
+void ModalViewEmptyController::ModalViewEmptyView::setMessages(I18n::Message * message) {
+  const int numberOfMessageViews = numberOfMessageTextViews();
+  for (int i = 0; i < numberOfMessageViews; i++) {
+    messageTextViewAtIndex(i)->setMessage(message[i]);
+  }
+}
+
+void ModalViewEmptyController::ModalViewEmptyView::drawRect(KDContext * ctx, KDRect rect) const {
+  ctx->fillRect(bounds(), k_backgroundColor);
+  drawBorderOfRect(ctx, bounds(), Palette::GreyBright);
+}
+
+int ModalViewEmptyController::ModalViewEmptyView::numberOfSubviews() const {
+  return numberOfMessageTextViews() + hasExpressionView();
+}
+
+View * ModalViewEmptyController::ModalViewEmptyView::subviewAtIndex(int index) {
+  if (hasExpressionView()) {
+    if (index == k_expressionViewRowIndex) {
+      return expressionView();
+    }
+    return messageTextViewAtIndex(index + (index < k_expressionViewRowIndex ? 0 : -1));
+  }
+  return messageTextViewAtIndex(index);
+}
+
+void ModalViewEmptyController::ModalViewEmptyView::layoutSubviews(bool force) {
+  const int numberOfMessageViews = numberOfMessageTextViews();
+  const bool hasExpression = hasExpressionView();
+  KDCoordinate width = bounds().width() - 2 * k_separatorThickness;
+  KDCoordinate height = bounds().height() - 2 * k_separatorThickness;
+  KDCoordinate textHeight = k_font->glyphSize().height();
+  KDCoordinate layoutHeight = hasExpression ? expressionView()->minimalSizeForOptimalDisplay().height() : 0;
+  KDCoordinate margin = (height - numberOfMessageViews * textHeight - layoutHeight) / 2;
+  if (hasExpression) {
+    expressionView()->setFrame(KDRect(
+          k_separatorThickness,
+          k_separatorThickness + margin + k_expressionViewRowIndex * textHeight,
+          width,
+          layoutHeight),
+        force);
+  }
+  KDCoordinate currentHeight = k_separatorThickness;
+  for (uint8_t i = 0; i < numberOfMessageViews; i++) {
+    if (hasExpression && i == k_expressionViewRowIndex) {
+      currentHeight += layoutHeight;
+    }
+    KDCoordinate h = (i == 0 || i == numberOfMessageViews - 1) ? textHeight + margin : textHeight;
+    messageTextViewAtIndex(i)->setFrame(KDRect(k_separatorThickness, currentHeight, width, h), force);
+    currentHeight += h;
+  }
+}
+
+// ModalViewEmptyController
+
+void ModalViewEmptyController::setMessages(I18n::Message * messages) {
+  static_cast<ModalViewEmptyView *>(view())->setMessages(messages);
+}