[escher] In pointer text view (future message text view) implement

minimal size for optimal display to ensure to be able to display all
languages

Change-Id: Id3c81185fa44017bc4fcca5db0c8d0a6c115f6fb

apps/i18n.cpp

@@ -356,4 +356,8 @@ const char * translate(Message m, Language l) {
   return messages[(int)m][languageIndex-1];
 }
 
+int numberOfLanguages() {
+  return 3;
+}
+
 }

escher/include/escher/i18n.h

@@ -7,6 +7,7 @@ namespace I18n {
   enum class Message : uint16_t;
   enum class Language : uint16_t;
   const char * translate(Message m, Language l = (Language)0);
+  int numberOfLanguages();
 }
 
 #endif

escher/include/escher/pointer_text_view.h

@@ -11,6 +11,7 @@ public:
   void setText(const char * text) override;
   void setMessage(I18n::Message message);
   const char * text() const override;
+  KDSize minimalSizeForOptimalDisplay() const override;
 private:
   I18n::Message m_message;
 };

escher/include/escher/text_view.h

@@ -22,12 +22,12 @@ protected:
 #if ESCHER_VIEW_LOGGING
   const char * className() const override;
 #endif
+  KDText::FontSize m_fontSize;
 private:
   float m_horizontalAlignment;
   float m_verticalAlignment;
   KDColor m_textColor;
   KDColor m_backgroundColor;
-  KDText::FontSize m_fontSize;
 };
 
 #endif

escher/src/pointer_text_view.cpp

@@ -20,3 +20,13 @@ void PointerTextView::setMessage(I18n::Message message) {
   m_message = message;
   markRectAsDirty(bounds());
 }
+
+KDSize PointerTextView::minimalSizeForOptimalDisplay() const  {
+  KDCoordinate width = 0;
+  for (int l = 0; l < I18n::numberOfLanguages(); l++) {
+    KDCoordinate newWidth = KDText::stringSize(I18n::translate(m_message, (I18n::Language)l), m_fontSize).width();
+    width = width > newWidth ?  width : newWidth;
+    l++;
+  }
+  return KDSize(width, KDText::stringSize(text(), m_fontSize).height());
+}

escher/src/text_view.cpp

@@ -3,11 +3,11 @@
 TextView::TextView(KDText::FontSize size, float horizontalAlignment, float verticalAlignment,
     KDColor textColor, KDColor backgroundColor) :
   View(),
+  m_fontSize(size),
   m_horizontalAlignment(horizontalAlignment),
   m_verticalAlignment(verticalAlignment),
   m_textColor(textColor),
-  m_backgroundColor(backgroundColor),
-  m_fontSize(size)
+  m_backgroundColor(backgroundColor)
 {
 }
 

quiz/src/i18n.cpp

@@ -6,5 +6,9 @@ const char * translate(Message m, Language l) {
   return nullptr;
 }
 
+int numberOfLanguages() {
+  return 0;
+}
+
 }