Refactoring FMenuBar::drawItems

.bettercodehub.yml

@@ -2,6 +2,7 @@ exclude:
 - /fonts/newfont.h
 - /fonts/vgafont.h
 - /fonts/unicodemap.h
+- /build.sh
 - /ltmain.sh
 component_depth: 3
 languages:

ChangeLog

@@ -1,3 +1,6 @@
+2017-12-21  Markus Gans  <guru.mail@muenster.de>
+	* Refactoring FMenuBar::drawItems
+
 2017-12-19  Markus Gans  <guru.mail@muenster.de>
 	* Refactoring FMenu::drawItems
 

examples/string-operations.cpp

@@ -30,7 +30,39 @@
 
 #include <final/final.h>
 
+// function prototype
+void init();
+void inputStreamExample();
+void outputStreamExample();
+void streamingIntoFStringExample();
+void streamingFromFStringExample();
+void CStringOutputExample();
+void copyIntoFString();
+void utf8StringOutputExample();
+void letterCaseExample();
+void stringConcatenationExample();
+void stringCompareExample();
+void stringSplittingExample();
+void fromatStringExample();
+void convertToNumberExample();
+void convertNumberToStringExample();
+void formatedNumberExample();
+void trimExample();
+void substringExample();
+void insertExample();
+void indexExample();
+void iteratorExample();
+void overwriteExample();
+void removeExample();
+void substringIncludeExample();
+void replaceExample();
+void tabToSpaceExample();
+void backspaceControlCharacterExample();
+void deleteControlCharacterExample();
 
+//----------------------------------------------------------------------
+// functions
+//----------------------------------------------------------------------
 void init()
 {
   std::cout << "----------------[ terminal ]-------------------"

examples/termcap.cpp

@@ -34,7 +34,10 @@ static FVTerm* terminal;
 void tcapBooleans (const std::string&, bool);
 void tcapNumeric (const std::string&, int);
 void tcapString (const std::string&, const char*);
-
+void debug (FApplication&);
+void booleans();
+void numeric();
+void string(FTermcap::tcap_map*&);
 
 //----------------------------------------------------------------------
 // functions
@@ -77,7 +80,7 @@ void tcapString (const std::string& name, const char* cap_str)
     if ( c > 127 )
     {
       std::ostringstream o;
-      o << std::oct << int(uChar(c));
+      o << std::oct << int(c);
       sequence += "\\";
       sequence += o.str();
     }
@@ -88,11 +91,11 @@ void tcapString (const std::string& name, const char* cap_str)
       else
       {
         sequence += '^';
-        sequence += c + 64;
+        sequence += char(c + 64);
       }
     }
     else
-      sequence += c;
+      sequence += char(c);
   }
 
   std::cout << sequence << " ";

include/final/fmenubar.h

@@ -99,6 +99,16 @@ class FMenuBar : public FWindow, public FMenuList
     void                cb_item_deactivated (FWidget*, data_ptr);
 
   private:
+    // Typedef
+    typedef struct
+    {
+      wchar_t* text;
+      int length;
+      int startpos;
+      int hotkeypos;
+      bool no_underline;
+    } menuText;
+
     // Disable copy constructor
     FMenuBar (const FMenuBar&);
 
@@ -117,6 +127,12 @@ class FMenuBar : public FWindow, public FMenuList
     int                 getHotkeyPos (wchar_t[], wchar_t[], uInt);
     void                draw();
     void                drawItems();
+    void                drawItem (FMenuItem*, int&);
+    void                setLineAttributes (FMenuItem*);
+    void                drawMenuText (menuText&);
+    void                drawEllipsis (menuText&, int);
+    void                drawLeadingSpace (int&);
+    void                drawTrailingSpace (int&);
     void                adjustItems();
     void                leaveMenuBar();
 
@@ -127,6 +143,7 @@ class FMenuBar : public FWindow, public FMenuList
     // Data Members
     bool   mouse_down;
     bool   drop_down;
+    int    screenWidth;
 };
 #pragma pack(pop)
 

src/fdialog.cpp

@@ -1301,26 +1301,27 @@ void FDialog::drawTitleBar()
   for (x = 1; x <= i; x++)
     print (' ');
 
-  // the title bar text
+  // Print title bar text
   if ( tb_text )
   {
     if ( length <= getWidth() - menu_btn - zoom_btn )
       print (tb_text);
     else
     {
+      // Print ellipsis
       print (tb_text.left(getWidth() - menu_btn - zoom_btn - 2));
       print ("..");
     }
   }
 
-  // fill the rest of the bar
+  // Fill the rest of the bar
   for ( ; x + 1 + length < getWidth() - zoom_btn - 1; x++)
     print (' ');
 
   if ( getMaxColor() < 16 )
     unsetBold();
 
-  // draw the zoom/unzoom button
+  // Draw the zoom/unzoom button
   if ( isResizeable() )
   {
     if ( zoom_button_pressed )
@@ -1379,7 +1380,7 @@ void FDialog::drawTitleBar()
   if ( isMonochron() )
     setReverse(false);
 
-/* print the number of window in stack */
+/* Print the number of window in stack */
 //setPrintPos (getWidth() - 2, 1);
 //printf ("(%d)", getWindowLayer(this));
 }

src/flabel.cpp

@@ -542,14 +542,16 @@ void FLabel::printLine ( wchar_t line[]
 
   if ( length > uInt(getWidth()) )
   {
+    // Print ellipsis
     setColor (ellipsis_color, getBackgroundColor());
     print ("..");
     setColor();
   }
   else if ( align_offset + to_char < getWidth() )
   {
+    // Print trailing spaces
     int len = getWidth() - align_offset - to_char;
-    print (FString(len, ' '));  // trailing spaces
+    print (FString(len, ' '));
   }
 
   if ( hasReverseMode() )

src/flistbox.cpp

@@ -1186,6 +1186,7 @@ void FListBox::drawLabel()
     print (txt);
   else
   {
+    // Print ellipsis
     print (text.left(uInt(getClientWidth() - 2)));
     setColor (wc.label_ellipsis_fg, wc.label_bg);
     print("..");

src/flistview.cpp

@@ -1439,6 +1439,7 @@ void FListView::drawColumnLabels()
     }
     else
     {
+      // Print ellipsis
       headerline << ' ';
       headerline << text.left(uInt(width - ellipsis_length));
       setColor (wc.label_ellipsis_fg, wc.label_bg);

src/fmenu.cpp

@@ -1296,7 +1296,7 @@ bool FMenu::hotkeyMenu (FKeyEvent*& ev)
 //----------------------------------------------------------------------
 int FMenu::getHotkeyPos (wchar_t src[], wchar_t dest[], uInt length)
 {
-  // find hotkey position in string
+  // Find hotkey position in string
   // + generate a new string without the '&'-sign
   int hotkeypos = -1;
   wchar_t* txt = src;
@@ -1319,7 +1319,7 @@ int FMenu::getHotkeyPos (wchar_t src[], wchar_t dest[], uInt length)
 //----------------------------------------------------------------------
 void FMenu::draw()
 {
-  // fill the background
+  // Fill the background
   setColor (wc.menu_active_fg, wc.menu_active_bg);
 
   if ( isMonochron() )

src/fmenubar.cpp

@@ -37,6 +37,7 @@ FMenuBar::FMenuBar(FWidget* parent)
   : FWindow(parent)
   , mouse_down(false)
   , drop_down(false)
+  , screenWidth(80)
 {
   init();
 }
@@ -52,7 +53,6 @@ FMenuBar::~FMenuBar()  // destructor
 //----------------------------------------------------------------------
 void FMenuBar::hide()
 {
-  int screenWidth;
   short fg, bg;
   char* blank;
 
@@ -776,9 +776,7 @@ void FMenuBar::draw()
 void FMenuBar::drawItems()
 {
   std::vector<FMenuItem*>::const_iterator iter, last;
-  int screenWidth;
   int x = 1;
-  screenWidth = getColumnNumber();
 
   if ( item_list.empty() )
     return;
@@ -788,27 +786,92 @@ void FMenuBar::drawItems()
   if ( isMonochron() )
     setReverse(true);
 
+  screenWidth = getColumnNumber();
   iter = item_list.begin();
   last = item_list.end();
 
   while ( iter != last )
   {
-    wchar_t* item_text;
+    drawItem (*iter, x);
-    FString txt;
+    ++iter;
-    uInt txt_length;
+  }
-    int  hotkeypos
-       , startpos
-       , to_char;
-    bool is_active
-       , is_selected
-       , is_noUnderline;
 
-    startpos = x + 1;
+  // Print spaces to end of line
-    is_active = (*iter)->isEnabled();
+  for (; x <= screenWidth; x++)
-    is_selected = (*iter)->isSelected();
+    print (' ');
-    is_noUnderline = (((*iter)->getFlags() & fc::no_underline) != 0);
 
-    if ( is_active )
+  if ( isMonochron() )
+    setReverse(false);
+}
+
+//----------------------------------------------------------------------
+void FMenuBar::drawItem (FMenuItem* menuitem, int& x)
+{
+  FString txt = menuitem->getText();
+  menuText txtdata;
+  uInt txt_length = txt.getLength();
+  int  hotkeypos;
+  int  to_char;
+  bool is_enabled  = menuitem->isEnabled();
+  bool is_selected = menuitem->isSelected();
+
+  txtdata.startpos = x + 1;
+  txtdata.no_underline = ((menuitem->getFlags() & fc::no_underline) != 0);
+
+  // Set screen attributes
+  setLineAttributes (menuitem);
+  drawLeadingSpace (x);
+
+  try
+  {
+    txtdata.text = new wchar_t[txt_length + 1]();
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    return;
+  }
+
+  if ( x - 1 <= screenWidth )
+    to_char = int(txt_length);
+  else
+    to_char = int(txt_length) - (screenWidth - x - 1);
+
+  hotkeypos = getHotkeyPos (txt.wc_str(), txtdata.text, txt_length);
+
+  if ( hotkeypos != -1 )
+  {
+    txt_length--;
+    to_char--;
+  }
+
+  txtdata.length = to_char;
+  x += int(txt_length);
+
+  if ( ! is_enabled || is_selected )
+    txtdata.hotkeypos = -1;
+  else
+    txtdata.hotkeypos = hotkeypos;
+
+  drawMenuText (txtdata);
+  drawEllipsis (txtdata, x);
+  drawTrailingSpace (x);
+
+  setColor (wc.menu_active_fg, wc.menu_active_bg);
+
+  if ( isMonochron() && is_enabled && is_selected )
+    setReverse(true);
+
+  delete[] txtdata.text;
+}
+
+//----------------------------------------------------------------------
+void FMenuBar::setLineAttributes (FMenuItem* menuitem)
+{
+  bool is_enabled  = menuitem->isEnabled();
+  bool is_selected = menuitem->isSelected();
+
+  if ( is_enabled )
   {
     if ( is_selected )
     {
@@ -831,108 +894,89 @@ void FMenuBar::drawItems()
   }
 
   setColor();
-
-    if ( x < screenWidth )
-    {
-      x++;
-      print (' ');
 }
 
-    txt = (*iter)->getText();
+//----------------------------------------------------------------------
-    txt_length = uInt(txt.getLength());
+void FMenuBar::drawMenuText (menuText& data)
-
-    try
 {
-      item_text = new wchar_t[txt_length + 1]();
+  // Print menu text
-    }
+
-    catch (const std::bad_alloc& ex)
+  for (int z = 0; z < data.length; z++)
   {
-      std::cerr << "not enough memory to alloc " << ex.what() << std::endl;
+    if ( data.startpos > screenWidth - z )
-      return;
-    }
-
-    if ( x - 1 <= screenWidth )
-      to_char = int(txt_length);
-    else
-      to_char = int(txt_length) - (screenWidth - x - 1);
-
-    hotkeypos = getHotkeyPos (txt.wc_str(), item_text, txt_length);
-
-    if ( hotkeypos != -1 )
-    {
-      txt_length--;
-      to_char--;
-    }
-
-    x += int(txt_length);
-
-    for (int z = 0; z < to_char; z++)
-    {
-      if ( startpos > screenWidth - z )
       break;
 
-      if ( ! std::iswprint(wint_t(item_text[z])) )
+    if ( ! std::iswprint(wint_t(data.text[z])) )
     {
       if ( ! isNewFont()
-          && ( int(item_text[z]) < fc::NF_rev_left_arrow2
+        && ( int(data.text[z]) < fc::NF_rev_left_arrow2
-            || int(item_text[z]) > fc::NF_check_mark ) )
+          || int(data.text[z]) > fc::NF_check_mark ) )
       {
-          item_text[z] = L' ';
+        data.text[z] = L' ';
       }
     }
 
-      if ( (z == hotkeypos) && is_active && ! is_selected )
+    if ( z == data.hotkeypos )
     {
       setColor (wc.menu_hotkey_fg, wc.menu_hotkey_bg);
 
-        if ( ! is_noUnderline )
+      if ( ! data.no_underline )
         setUnderline();
 
-        print (item_text[z]);
+      print (data.text[z]);
 
-        if ( ! is_noUnderline )
+      if ( ! data.no_underline )
         unsetUnderline();
 
       setColor();
     }
     else
-        print (item_text[z]);
+      print (data.text[z]);
+  }
 }
 
+//----------------------------------------------------------------------
+inline void FMenuBar::drawEllipsis (menuText& txtdata, int x)
+{
   if ( x > screenWidth + 1 )
   {
-      if ( startpos < screenWidth )
+    if ( txtdata.startpos < screenWidth )
     {
+      // Print ellipsis
       setPrintPos (screenWidth - 1, 1);
       print ("..");
     }
-      else if ( startpos - 1 <= screenWidth )
+    else if ( txtdata.startpos - 1 <= screenWidth )
     {
+      // Hide first character from text
       setPrintPos (screenWidth, 1);
       print (' ');
     }
     }
+}
+
+//----------------------------------------------------------------------
+inline void FMenuBar::drawLeadingSpace (int& x)
+{
+  // Print a leading blank space
 
   if ( x < screenWidth )
   {
     x++;
     print (' ');
   }
-
-    setColor (wc.menu_active_fg, wc.menu_active_bg);
-
-    if ( isMonochron() && is_active && is_selected )
-      setReverse(true);
-
-    delete[] item_text;
-    ++iter;
 }
 
-  for (; x <= screenWidth; x++)
+//----------------------------------------------------------------------
-    print (' ');
+inline void FMenuBar::drawTrailingSpace (int& x)
+{
+  // Print a trailing blank space
 
-  if ( isMonochron() )
+  if ( x < screenWidth )
-    setReverse(false);
+  {
+    x++;
+    print (' ');
+  }
 }
 
 //----------------------------------------------------------------------

src/fstatusbar.cpp

@@ -281,6 +281,7 @@ void FStatusBar::drawMessage()
         print (getMessage());
       else
       {
+        // Print ellipsis
         print ( getMessage().left(uInt(msg_length + termWidth - x - 1)) );
         print ("..");
       }
@@ -629,6 +630,7 @@ void FStatusBar::drawKeys()
         }
         else
         {
+          // Print ellipsis
           print ( (*iter)->getText()
                           .left(uInt(txt_length + screenWidth - x - 1)) );
           print ("..");
@@ -657,6 +659,7 @@ void FStatusBar::drawKeys()
           print ((*iter)->getText());
         else
         {
+          // Print ellipsis
           print ( (*iter)->getText()
                           .left(uInt(txt_length + screenWidth - x - 1)) );
           print ("..");