Refactoring FSwitch::drawCheckButton and FWidget::redraw

ChangeLog

@@ -1,3 +1,6 @@
+2017-01-31  Markus Gans  <guru.mail@muenster.de>
+	* Refactoring FSwitch::drawCheckButton and FWidget::redraw 
+
 2017-01-30  Markus Gans  <guru.mail@muenster.de>
 	* Refactoring FLabel::draw
 	* Refactoring FFileDialog::readDir

examples/string-operations.cpp

@@ -3,7 +3,7 @@
 *                                                                      *
 * This file is part of the Final Cut widget toolkit                    *
 *                                                                      *
-* Copyright 2012-2017 Markus Gans                                      *
+* Copyright 2012-2018 Markus Gans                                      *
 *                                                                      *
 * The Final Cut is free software; you can redistribute it and/or       *
 * modify it under the terms of the GNU Lesser General Public License   *
@@ -36,6 +36,10 @@ void inputStreamExample();
 void outputStreamExample();
 void streamingIntoFStringExample();
 void streamingFromFStringExample();
+void streamToInterger();
+void streamToUnsignedInterger();
+void streamToDouble();
+void streamToFloat();
 void CStringOutputExample();
 void copyIntoFString();
 void utf8StringOutputExample();
@@ -193,6 +197,23 @@ void streamingFromFStringExample()
   std::cout << "stream out: " << stream_char << std::endl;
 
   // ...to interger
+  streamToInterger();
+
+  // ...to unsigned interger
+  streamToUnsignedInterger();
+
+  // ...to double
+  streamToDouble();
+
+  // ...to float
+  streamToFloat();
+}
+
+//----------------------------------------------------------------------
+void streamToInterger()
+{
+  // Streaming from a FString to interger
+
   try
   {
     int stream_int;
@@ -212,7 +233,12 @@ void streamingFromFStringExample()
     std::cerr << "Arithmetic error: " << ex.what() << std::endl;
   }
 
-  // ...to unsigned interger
+}
+
+//----------------------------------------------------------------------
+void streamToUnsignedInterger()
+{
+  // Streaming from a FString to unsigned interger
   try
   {
     uInt stream_uint;
@@ -231,8 +257,12 @@ void streamingFromFStringExample()
   {
     std::cerr << "Arithmetic error: " << ex.what() << std::endl;
   }
+}
 
-  // ...to double
+//----------------------------------------------------------------------
+void streamToDouble()
+{
+  // Streaming from a FString to double
   try
   {
     double stream_double;
@@ -247,8 +277,12 @@ void streamingFromFStringExample()
   {
     std::cerr << "Arithmetic error: " << ex.what() << std::endl;
   }
+}
 
-  // ...to float
+//----------------------------------------------------------------------
+void streamToFloat()
+{
+  // Streaming from a FString to float
   try
   {
     float stream_float;

include/final/fdialog.h

@@ -184,6 +184,8 @@ class FDialog : public FWindow
     void                drawBarButton();
     void                drawZoomButton();
     void                drawTextBar();
+    void                restoreOverlaidWindows();
+    void                setCursorToFocusWidget();
     void                leaveMenu();
     void                openMenu();
     void                selectFirstMenuItem();

include/final/fswitch.h

@@ -3,7 +3,7 @@
 *                                                                      *
 * This file is part of the Final Cut widget toolkit                    *
 *                                                                      *
-* Copyright 2015-2017 Markus Gans                                      *
+* Copyright 2015-2018 Markus Gans                                      *
 *                                                                      *
 * The Final Cut is free software; you can redistribute it and/or       *
 * modify it under the terms of the GNU Lesser General Public License   *
@@ -98,6 +98,8 @@ class FSwitch : public FToggleButton
     // Methods
     void draw();
     void drawCheckButton();
+    void drawChecked();
+    void drawUnchecked();
 
     // Data Members
     int  switch_offset_pos;

include/final/fwidget.h

@@ -390,6 +390,8 @@ class FWidget : public FVTerm, public FObject
     void               KeyDownEvent (FKeyEvent*);
     void               processDestroy();
     virtual void       draw();
+    void               drawWindows();
+    void               drawChildren();
     void               drawTransparentShadow (int, int, int, int);
     void               drawBlockShadow (int, int, int, int);
     static void        setColorTheme();

src/fdialog.cpp

@@ -278,40 +278,9 @@ void FDialog::setPos (int x, int y, bool)
     restoreVTerm (old_geometry);
   }
 
-  // handle overlaid windows
+  restoreOverlaidWindows();
-  if ( window_list && ! window_list->empty() )
-  {
-    bool overlaid = false;
-    widgetList::const_iterator iter, last;
-    iter = window_list->begin();
-    last = window_list->end();
-
-    while ( iter != last )
-    {
-      if ( overlaid )
-        putArea ((*iter)->getTermPos(), (*iter)->getVWin());
-
-      if ( vwin == (*iter)->getVWin() )
-        overlaid = true;
-
-      ++iter;
-    }
-  }
-
   FWindow::adjustSize();
-
+  setCursorToFocusWidget();
-  // set the cursor to the focus widget
-  FWidget* focus_widget = FWidget::getFocusWidget();
-
-  if ( focus_widget
-    && focus_widget->isVisible()
-    && focus_widget->hasVisibleCursor() )
-  {
-    FPoint cursor_pos = focus_widget->getCursorPos();
-    focus_widget->setCursorPos(cursor_pos);
-    updateVTermCursor(vwin);
-  }
-
   updateTerminal();
 }
 
@@ -1235,6 +1204,48 @@ void FDialog::drawTextBar()
     unsetBold();
 }
 
+//----------------------------------------------------------------------
+void FDialog::restoreOverlaidWindows()
+{
+  // Restoring overlaid windows
+
+  if ( ! window_list || window_list->empty() )
+    return;
+
+  bool overlaid = false;
+  widgetList::const_iterator iter, last;
+  iter = window_list->begin();
+  last = window_list->end();
+
+  while ( iter != last )
+  {
+    if ( overlaid )
+      putArea ((*iter)->getTermPos(), (*iter)->getVWin());
+
+    if ( vwin == (*iter)->getVWin() )
+      overlaid = true;
+
+    ++iter;
+  }
+}
+
+//----------------------------------------------------------------------
+void FDialog::setCursorToFocusWidget()
+{
+  // Set the cursor to the focus widget
+
+  FWidget* focus_widget = FWidget::getFocusWidget();
+
+  if ( focus_widget
+    && focus_widget->isVisible()
+    && focus_widget->hasVisibleCursor() )
+  {
+    FPoint cursor_pos = focus_widget->getCursorPos();
+    focus_widget->setCursorPos(cursor_pos);
+    updateVTermCursor(vwin);
+  }
+}
+
 //----------------------------------------------------------------------
 void FDialog::leaveMenu()
 {

src/fswitch.cpp

@@ -3,7 +3,7 @@
 *                                                                      *
 * This file is part of the Final Cut widget toolkit                    *
 *                                                                      *
-* Copyright 2015-2017 Markus Gans                                      *
+* Copyright 2015-2018 Markus Gans                                      *
 *                                                                      *
 * The Final Cut is free software; you can redistribute it and/or       *
 * modify it under the terms of the GNU Lesser General Public License   *
@@ -129,12 +129,20 @@ void FSwitch::drawCheckButton()
   if ( ! isVisible() )
     return;
 
-  wchar_t on[6] = L"  On ";
-  wchar_t off[6] = L" Off ";
   setPrintPos (1 + switch_offset_pos, 1);
 
   if ( checked )
+    drawChecked();
+  else
+    drawUnchecked();
+}
+
+//----------------------------------------------------------------------
+void FSwitch::drawChecked()
 {
+  wchar_t on[6] = L"  On ";
+  wchar_t off[6] = L" Off ";
+
   if ( hasFocus() && ! button_pressed )
   {
     if ( isMonochron() )
@@ -177,8 +185,13 @@ void FSwitch::drawCheckButton()
 
   setCursorPos (3 + switch_offset_pos, 1);
 }
-  else
+
+//----------------------------------------------------------------------
+void FSwitch::drawUnchecked()
 {
+  wchar_t on[6] = L"  On ";
+  wchar_t off[6] = L" Off ";
+
   setColor (wc.button_inactive_fg, wc.button_inactive_bg);
 
   if ( isMonochron() )
@@ -219,4 +232,3 @@ void FSwitch::drawCheckButton()
 
   setCursorPos (7 + switch_offset_pos, 1);
 }
-}

src/fwidget.cpp

@@ -1114,60 +1114,9 @@ void FWidget::redraw()
   draw();
 
   if ( isRootWidget() )
-  {
+    drawWindows();
-    // draw windows
-    FOptiAttr::char_data default_char;
-    default_char.code         = ' ';
-    default_char.fg_color     = fc::Black;
-    default_char.bg_color     = fc::Black;
-    default_char.attr.byte[0] = 0;
-    default_char.attr.byte[1] = 0;
-
-    if ( window_list && ! window_list->empty() )
-    {
-      widgetList::const_iterator iter, last;
-      iter = window_list->begin();
-      last  = window_list->end();
-
-      while ( iter != last )
-      {
-        if ( (*iter)->isVisible() )
-        {
-          term_area* win = (*iter)->getVWin();
-          int w = win->width  + win->right_shadow;
-          int h = win->height + win->bottom_shadow;
-          std::fill_n (win->text, w * h, default_char);
-
-          (*iter)->redraw();
-        }
-
-        ++iter;
-      }
-    }
-  }
   else
-  {
+    drawChildren();
-    // draw child elements
-    if ( hasChildren() )
-    {
-      constFObjectIterator iter, last;
-      iter = FObject::begin();
-      last = FObject::end();
-
-      while ( iter != last )
-      {
-        if ( (*iter)->isWidget() )
-        {
-          FWidget* widget = static_cast<FWidget*>(*iter);
-
-          if ( widget->isVisible() && ! widget->isWindowWidget() )
-            widget->redraw();
-        }
-
-        ++iter;
-      }
-    }
-  }
 
   if ( isRootWidget() )
     finishTerminalUpdate();
@@ -2405,6 +2354,65 @@ void FWidget::KeyDownEvent (FKeyEvent* kev)
 void FWidget::draw()
 { }
 
+//----------------------------------------------------------------------
+void FWidget::drawWindows()
+{
+  // redraw windows
+  FOptiAttr::char_data default_char;
+  default_char.code         = ' ';
+  default_char.fg_color     = fc::Black;
+  default_char.bg_color     = fc::Black;
+  default_char.attr.byte[0] = 0;
+  default_char.attr.byte[1] = 0;
+
+  if ( ! window_list || window_list->empty() )
+    return;
+
+  widgetList::const_iterator iter, last;
+  iter = window_list->begin();
+  last  = window_list->end();
+
+  while ( iter != last )
+  {
+    if ( (*iter)->isVisible() )
+    {
+      term_area* win = (*iter)->getVWin();
+      int w = win->width  + win->right_shadow;
+      int h = win->height + win->bottom_shadow;
+      std::fill_n (win->text, w * h, default_char);
+
+      (*iter)->redraw();
+    }
+
+    ++iter;
+  }
+}
+
+//----------------------------------------------------------------------
+void FWidget::drawChildren()
+{
+  // draw child elements
+  if ( ! hasChildren() )
+    return;
+
+  constFObjectIterator iter, last;
+  iter = FObject::begin();
+  last = FObject::end();
+
+  while ( iter != last )
+  {
+    if ( (*iter)->isWidget() )
+    {
+      FWidget* widget = static_cast<FWidget*>(*iter);
+
+      if ( widget->isVisible() && ! widget->isWindowWidget() )
+        widget->redraw();
+    }
+
+    ++iter;
+  }
+}
+
 //----------------------------------------------------------------------
 void FWidget::drawTransparentShadow (int x1, int y1, int x2, int y2)
 {