A bit of refactoring

ChangeLog

@@ -1,3 +1,16 @@
+2019-01-12  Markus Gans  <guru.mail@muenster.de>
+	* Refactoring FFileDialog::fileOpenChooser
+	* Refactoring FFileDialog::fileSaveChooser
+	* Refactoring FListBox::init()
+	* Refactoring FListView::init()
+	* Refactoring FTextView::init()
+	* Refactoring FTermXTerminal::resetXTermForeground()
+	* Refactoring FTermXTerminal::resetXTermBackground()
+	* Refactoring FTermXTerminal::resetXTermCursorColor()
+	* Refactoring FTermXTerminal::resetXTermMouseForeground()
+	* Refactoring FTermXTerminal::resetXTermMouseBackground()
+	* Refactoring FTermXTerminal::resetXTermHighlightBackground()
+
 2019-01-11  Markus Gans  <guru.mail@muenster.de>
 	* Generalize hide() method
 

src/ffiledialog.cpp

@@ -52,6 +52,40 @@ bool sortDirFirst ( const FFileDialog::dir_entry& lhs
     return false;
 }
 
+//----------------------------------------------------------------------
+const FString fileChooser ( FWidget* parent
+                          , const FString& dirname
+                          , const FString& filter
+                          , FFileDialog::DialogType type )
+{
+  FString ret;
+  FString path = dirname;
+  FString file_filter = filter;
+
+  if ( path.isNull() || path.isEmpty() )
+  {
+    path = FFileDialog::getHomeDir();
+
+    if ( path.isNull() || path.isEmpty() )
+      path = FString("/");
+  }
+
+  if ( file_filter.isNull() || file_filter.isEmpty() )
+    file_filter = FString("*");
+
+  FFileDialog fileopen ( path
+                       , file_filter
+                       , type
+                       , parent );
+
+  if ( fileopen.exec() == FDialog::Accept )
+    ret = fileopen.getPath() + fileopen.getSelectedFile();
+  else
+    ret = FString();
+
+  return ret;
+}
+
 
 //----------------------------------------------------------------------
 // class FFileDialog
@@ -225,32 +259,7 @@ const FString FFileDialog::fileOpenChooser ( FWidget* parent
                                            , const FString& dirname
                                            , const FString& filter )
 {
-  FString ret;
+  return fileChooser (parent, dirname, filter, FFileDialog::Open);
-  FString path = dirname;
-  FString file_filter = filter;
-
-  if ( path.isNull() || path.isEmpty() )
-  {
-    path = getHomeDir();
-
-    if ( path.isNull() || path.isEmpty() )
-      path = FString("/");
-  }
-
-  if ( file_filter.isNull() || file_filter.isEmpty() )
-    file_filter = FString("*");
-
-  FFileDialog fileopen ( path
-                       , file_filter
-                       , FFileDialog::Open
-                       , parent );
-
-  if ( fileopen.exec() == FDialog::Accept )
-    ret = fileopen.getPath() + fileopen.getSelectedFile();
-  else
-    ret = FString();
-
-  return ret;
 }
 
 //----------------------------------------------------------------------
@@ -258,32 +267,7 @@ const FString FFileDialog::fileSaveChooser ( FWidget* parent
                                            , const FString& dirname
                                            , const FString& filter )
 {
-  FString ret;
+  return fileChooser (parent, dirname, filter, FFileDialog::Save);
-  FString path = dirname;
-  FString file_filter = filter;
-
-  if ( path.isNull() || path.isEmpty() )
-  {
-    path = getHomeDir();
-
-    if ( path.isNull() || path.isEmpty() )
-      path = FString("/");
-  }
-
-  if ( file_filter.isNull() || file_filter.isEmpty() )
-    file_filter = FString("*");
-
-  FFileDialog fileopen ( path
-                       , file_filter
-                       , FFileDialog::Save
-                       , parent );
-
-  if ( fileopen.exec() == FDialog::Accept )
-    ret = fileopen.getPath() + fileopen.getSelectedFile();
-  else
-    ret = FString();
-
-  return ret;
 }
 
 

src/flistbox.cpp

@@ -760,37 +760,8 @@ inline FString& FListBox::getString (listBoxItems::iterator iter)
 //----------------------------------------------------------------------
 void FListBox::init()
 {
-  try
+  initScrollbar (vbar, fc::vertical, &FListBox::cb_VBarChange);
-  {
+  initScrollbar (hbar, fc::horizontal, &FListBox::cb_HBarChange);
-    vbar = std::make_shared<FScrollbar>(fc::vertical, this);
-    hbar = std::make_shared<FScrollbar>(fc::horizontal, this);
-  }
-  catch (const std::bad_alloc& ex)
-  {
-    std::cerr << bad_alloc_str << ex.what() << std::endl;
-    return;
-  }
-
-  vbar->setMinimum(0);
-  vbar->setValue(0);
-  vbar->hide();
-
-  hbar->setMinimum(0);
-  hbar->setValue(0);
-  hbar->hide();
-
-  vbar->addCallback
-  (
-    "change-value",
-    F_METHOD_CALLBACK (this, &FListBox::cb_VBarChange)
-  );
-
-  hbar->addCallback
-  (
-    "change-value",
-    F_METHOD_CALLBACK (this, &FListBox::cb_HBarChange)
-  );
-
   setGeometry (1, 1, 5, 4, false);  // initialize geometry values
   setForegroundColor (wc.dialog_fg);
   setBackgroundColor (wc.dialog_bg);
@@ -801,6 +772,32 @@ void FListBox::init()
   setRightPadding(1 + int(nf_offset));
 }
 
+//----------------------------------------------------------------------
+void FListBox::initScrollbar ( FScrollbarPtr& bar
+                             , fc::orientation o
+                             , FListBoxCallback callback )
+{
+  try
+  {
+    bar = std::make_shared<FScrollbar>(o, this);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << bad_alloc_str << ex.what() << std::endl;
+    return;
+  }
+
+  bar->setMinimum(0);
+  bar->setValue(0);
+  bar->hide();
+
+  bar->addCallback
+  (
+    "change-value",
+    F_METHOD_CALLBACK (this, callback)
+  );
+}
+
 //----------------------------------------------------------------------
 void FListBox::draw()
 {

src/flistview.cpp

@@ -1369,37 +1369,8 @@ void FListView::adjustSize()
 //----------------------------------------------------------------------
 void FListView::init()
 {
-  try
+  initScrollbar (vbar, fc::vertical, &FListView::cb_VBarChange);
-  {
+  initScrollbar (hbar, fc::horizontal, &FListView::cb_HBarChange);
-    vbar = std::make_shared<FScrollbar>(fc::vertical, this);
-    hbar = std::make_shared<FScrollbar>(fc::horizontal, this);
-  }
-  catch (const std::bad_alloc& ex)
-  {
-    std::cerr << bad_alloc_str << ex.what() << std::endl;
-    return;
-  }
-
-  vbar->setMinimum(0);
-  vbar->setValue(0);
-  vbar->hide();
-
-  hbar->setMinimum(0);
-  hbar->setValue(0);
-  hbar->hide();
-
-  vbar->addCallback
-  (
-    "change-value",
-    F_METHOD_CALLBACK (this, &FListView::cb_VBarChange)
-  );
-
-  hbar->addCallback
-  (
-    "change-value",
-    F_METHOD_CALLBACK (this, &FListView::cb_HBarChange)
-  );
-
   selflist.push_back(this);
   root = selflist.begin();
   null_iter = selflist.end();
@@ -1413,6 +1384,32 @@ void FListView::init()
   setRightPadding(1 + int(nf_offset));
 }
 
+//----------------------------------------------------------------------
+void FListView::initScrollbar ( FScrollbarPtr& bar
+                              , fc::orientation o
+                              , FListViewCallback callback )
+{
+  try
+  {
+    bar = std::make_shared<FScrollbar>(o, this);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << bad_alloc_str << ex.what() << std::endl;
+    return;
+  }
+
+  bar->setMinimum(0);
+  bar->setValue(0);
+  bar->hide();
+
+  bar->addCallback
+  (
+    "change-value",
+    F_METHOD_CALLBACK (this, callback)
+  );
+}
+
 //----------------------------------------------------------------------
 template <typename Compare>
 void FListView::sort (Compare cmp)

src/fscrollbar.cpp

@@ -42,7 +42,7 @@ FScrollbar::FScrollbar(FWidget* parent)
 }
 
 //----------------------------------------------------------------------
-FScrollbar::FScrollbar(int o, FWidget* parent)
+FScrollbar::FScrollbar(fc::orientation o, FWidget* parent)
   : FWidget(parent)
 {
   setOrientation (o);
@@ -124,7 +124,7 @@ void FScrollbar::setPageSize (int document_size, int page_size)
 }
 
 //----------------------------------------------------------------------
-void FScrollbar::setOrientation (int o)
+void FScrollbar::setOrientation (fc::orientation o)
 {
   std::size_t nf = 0;
   length = ( getHeight() > getWidth() ) ? getHeight() : getWidth();

src/ftermxterminal.cpp

@@ -605,23 +605,18 @@ void FTermXTerminal::resetXTermColorMap()
 {
   // Reset the entire color table
 
-  if ( term_detection->isGnomeTerminal()
+  if ( term_detection->isMinttyTerm() )
-    && term_detection->getGnomeTerminalID() < 3502 )
+  {
-    return;
+    FTerm::putstringf (ESC "c");  // Full Reset (RIS)
-
+  }
-  if ( term_detection->isPuttyTerminal()
+  else if ( canResetColor() )
-    || term_detection->isMltermTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstringf (OSC "104" BEL);
     oscPostfix();
     std::fflush(stdout);
   }
+
 }
 
 //----------------------------------------------------------------------
@@ -629,17 +624,7 @@ void FTermXTerminal::resetXTermForeground()
 {
   // Reset the XTerm text foreground color
 
-  if ( term_detection->isGnomeTerminal()
+  if ( canResetColor() )
-    && term_detection->getGnomeTerminalID() < 3502 )
-    return;
-
-  if ( term_detection->isPuttyTerminal()
-    || term_detection->isMltermTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstring (OSC "110" BEL);
@@ -653,17 +638,7 @@ void FTermXTerminal::resetXTermBackground()
 {
   // Reset the XTerm text background color
 
-  if ( term_detection->isGnomeTerminal()
+  if ( canResetColor() )
-    && term_detection->getGnomeTerminalID() < 3502 )
-    return;
-
-  if ( term_detection->isPuttyTerminal()
-    || term_detection->isMltermTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstring (OSC "111" BEL);
@@ -677,16 +652,7 @@ void FTermXTerminal::resetXTermCursorColor()
 {
   // Reset the text cursor color
 
-  if ( term_detection->isGnomeTerminal()
+  if ( canResetColor() )
-    && term_detection->getGnomeTerminalID() < 3502 )
-    return;
-
-  if ( term_detection->isPuttyTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstring (OSC "112" BEL);
@@ -700,16 +666,7 @@ void FTermXTerminal::resetXTermMouseForeground()
 {
   // Reset the mouse foreground color
 
-  if ( term_detection->isGnomeTerminal()
+  if ( canResetColor() )
-    && term_detection->getGnomeTerminalID() < 3502 )
-    return;
-
-  if ( term_detection->isPuttyTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstring (OSC "113" BEL);
@@ -723,16 +680,7 @@ void FTermXTerminal::resetXTermMouseBackground()
 {
   // Reset the mouse background color
 
-  if ( term_detection->isGnomeTerminal()
+  if ( canResetColor() )
-    && term_detection->getGnomeTerminalID() < 3502 )
-    return;
-
-  if ( term_detection->isPuttyTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstring (OSC "114" BEL);
@@ -746,17 +694,7 @@ void FTermXTerminal::resetXTermHighlightBackground()
 {
   // Reset the highlight background color
 
-  if ( term_detection->isGnomeTerminal()
+  if ( canResetColor() )
-    && term_detection->getGnomeTerminalID() < 3502 )
-    return;
-
-  if ( term_detection->isPuttyTerminal() )
-    return;
-
-  if ( term_detection->isXTerminal()
-    || term_detection->isScreenTerm()
-    || term_detection->isUrxvtTerminal()
-    || FTermcap::osc_support )
   {
     oscPrefix();
     FTerm::putstringf (OSC "117" BEL);
@@ -765,6 +703,25 @@ void FTermXTerminal::resetXTermHighlightBackground()
   }
 }
 
+//----------------------------------------------------------------------
+bool FTermXTerminal::canResetColor()
+{
+  if ( term_detection->isGnomeTerminal()
+    && term_detection->getGnomeTerminalID() < 3502 )
+    return false;
+
+  if ( term_detection->isPuttyTerminal()
+    || term_detection->isMltermTerminal() )
+    return false;
+
+  if ( term_detection->isXTerminal()
+    || term_detection->isScreenTerm()
+    || FTermcap::osc_support )
+    return true;
+
+  return false;
+}
+
 //----------------------------------------------------------------------
 void FTermXTerminal::oscPrefix()
 {

src/ftextview.cpp

@@ -585,37 +585,8 @@ std::size_t FTextView::getTextWidth()
 //----------------------------------------------------------------------
 void FTextView::init()
 {
-  try
+  initScrollbar (vbar, fc::vertical, &FTextView::cb_VBarChange);
-  {
+  initScrollbar (hbar, fc::horizontal, &FTextView::cb_HBarChange);
-    vbar = std::make_shared<FScrollbar>(fc::vertical, this);
-    hbar = std::make_shared<FScrollbar>(fc::horizontal, this);
-  }
-  catch (const std::bad_alloc& ex)
-  {
-    std::cerr << bad_alloc_str << ex.what() << std::endl;
-    return;
-  }
-
-  vbar->setMinimum(0);
-  vbar->setValue(0);
-  vbar->hide();
-
-  hbar->setMinimum(0);
-  hbar->setValue(0);
-  hbar->hide();
-
-  vbar->addCallback
-  (
-    "change-value",
-    F_METHOD_CALLBACK (this, &FTextView::cb_VBarChange)
-  );
-
-  hbar->addCallback
-  (
-    "change-value",
-    F_METHOD_CALLBACK (this, &FTextView::cb_HBarChange)
-  );
-
   setForegroundColor (wc.dialog_fg);
   setBackgroundColor (wc.dialog_bg);
   nf_offset = isNewFont() ? 1 : 0;
@@ -625,6 +596,32 @@ void FTextView::init()
   setRightPadding(1 + nf_offset);
 }
 
+//----------------------------------------------------------------------
+void FTextView::initScrollbar ( FScrollbarPtr& bar
+                              , fc::orientation o
+                              , FTextViewCallback callback )
+{
+  try
+  {
+    bar = std::make_shared<FScrollbar>(o, this);
+  }
+  catch (const std::bad_alloc& ex)
+  {
+    std::cerr << bad_alloc_str << ex.what() << std::endl;
+    return;
+  }
+
+  bar->setMinimum(0);
+  bar->setValue(0);
+  bar->hide();
+
+  bar->addCallback
+  (
+    "change-value",
+    F_METHOD_CALLBACK (this, callback)
+  );
+}
+
 //----------------------------------------------------------------------
 void FTextView::draw()
 {

src/include/final/ffiledialog.h

@@ -139,6 +139,11 @@ class FFileDialog : public FDialog
     static const FString fileSaveChooser ( FWidget*
                                          , const FString& = FString()
                                          , const FString& = FString() );
+    // Friend function
+    friend const FString fileChooser ( FWidget*
+                                     , const FString&
+                                     , const FString&
+                                     , FFileDialog::DialogType);
 
   protected:
     // Method

src/include/final/flistbox.h

@@ -243,6 +243,7 @@ class FListBox : public FWidget
   private:
     // Typedef
     typedef std::shared_ptr<FScrollbar> FScrollbarPtr;
+    typedef void (FListBox::*FListBoxCallback)(FWidget*, FDataPtr);
 
     // Enumeration
     enum convert_type
@@ -261,6 +262,9 @@ class FListBox : public FWidget
 
     // Methods
     void                init();
+    void                initScrollbar ( FScrollbarPtr&
+                                      , fc::orientation
+                                      , FListBoxCallback );
     virtual void        draw() override;
     void                drawHeadline();
     void                drawList();

src/include/final/flistview.h

@@ -375,6 +375,7 @@ class FListView : public FWidget
     typedef std::vector<Header> headerItems;
     typedef std::vector<fc::sorting_type> sortTypes;
     typedef std::shared_ptr<FScrollbar> FScrollbarPtr;
+    typedef void (FListView::*FListViewCallback)(FWidget*, FDataPtr);
 
     // Constants
     static constexpr int USE_MAX_SIZE = -1;
@@ -385,6 +386,9 @@ class FListView : public FWidget
 
     // Methods
     void                 init();
+    void                 initScrollbar ( FScrollbarPtr&
+                                       , fc::orientation
+                                       , FListViewCallback );
     template <typename Compare>
     void                 sort (Compare);
     std::size_t          getAlignOffset ( fc::text_alignment

src/include/final/fscrollbar.h

@@ -85,7 +85,7 @@ class FScrollbar : public FWidget
 
     // Constructors
     explicit FScrollbar (FWidget* = nullptr);
-    explicit FScrollbar (int = fc::vertical, FWidget* = nullptr);
+    explicit FScrollbar (fc::orientation = fc::vertical, FWidget* = nullptr);
 
     // Disable copy constructor
     FScrollbar (const FScrollbar&) = delete;
@@ -108,7 +108,7 @@ class FScrollbar : public FWidget
     void                setValue (int);
     void                setSteps (double);
     void                setPageSize (int, int);
-    void                setOrientation (int);
+    void                setOrientation (fc::orientation);
     virtual void        setGeometry ( int, int
                                     , std::size_t, std::size_t
                                     , bool = true) override;
@@ -159,7 +159,7 @@ class FScrollbar : public FWidget
     double          steps{1};
     int             pagesize{0};
     std::size_t     length{20};
-    int          bar_orientation{fc::vertical};
+    fc::orientation bar_orientation{fc::vertical};
     int             max_color{getMaxColor()};
 };
 #pragma pack(pop)

src/include/final/ftermxterminal.h

@@ -126,6 +126,7 @@ class FTermXTerminal final
     static void           resetXTermMouseForeground();
     static void           resetXTermMouseBackground();
     static void           resetXTermHighlightBackground();
+    static bool           canResetColor();
     static void           oscPrefix();
     static void           oscPostfix();
     static const FString* captureXTermFont();

src/include/final/ftextview.h

@@ -136,6 +136,7 @@ class FTextView : public FWidget
   private:
     // Typedef
     typedef std::shared_ptr<FScrollbar> FScrollbarPtr;
+    typedef void (FTextView::*FTextViewCallback)(FWidget*, FDataPtr);
 
     // Accessors
     std::size_t         getTextHeight();
@@ -147,6 +148,9 @@ class FTextView : public FWidget
 
     // Methods
     void                init();
+    void                initScrollbar ( FScrollbarPtr&
+                                      , fc::orientation
+                                      , FTextViewCallback );
     virtual void        draw() override;
     void                drawText();
     void                processChanged();

src/include/final/fwidget.h

@@ -513,7 +513,7 @@ class FWidget : public FVTerm, public FObject
     static bool        init_desktop;
     static bool        hideable;
 
-    // Friend class
+    // Friend classes
     friend class FToggleButton;
     friend class FScrollView;
 };