Add a transparent example program

test/transparent.cpp

@@ -0,0 +1,235 @@
+// File: transparent.cpp
+
+#include "fapp.h"
+#include "fdialog.h"
+#include "flabel.h"
+#include "fmessagebox.h"
+#include "fstatusbar.h"
+#include "fstring.h"
+
+
+//----------------------------------------------------------------------
+// class Transparent
+//----------------------------------------------------------------------
+
+#pragma pack(push)
+#pragma pack(1)
+
+class Transparent : public FDialog
+{
+ private:
+   bool shadow_win;
+
+ private:
+   Transparent (const Transparent&);    // Disabled copy constructor
+   Transparent& operator = (const Transparent&); // and operator '='
+   void draw();
+   void onAccel (FAccelEvent* ev)
+   {
+     if ( getParentWidget() )
+     {
+       if ( getParentWidget()->close() )
+         ev->accept();
+       else
+          ev->ignore();
+     }
+   }
+
+ public:
+   explicit Transparent (FWidget* = 0, bool = false);  // constructor
+  ~Transparent();  // destructor
+};
+#pragma pack(pop)
+
+//----------------------------------------------------------------------
+Transparent::Transparent (FWidget* parent, bool shadow)
+  : FDialog(parent)
+  , shadow_win(shadow)
+{
+  setStatusbarMessage("Press Q to quit");
+  addAccelerator('q');
+}
+
+//----------------------------------------------------------------------
+Transparent::~Transparent()
+{ }
+
+//----------------------------------------------------------------------
+void Transparent::draw()
+{
+  FDialog::draw();
+  updateVTerm(false);
+
+  if ( isMonochron() )
+    setReverse(true);
+
+  if ( shadow_win )
+  {
+    setColor(wc.shadow_bg, wc.shadow_fg);
+    setTransShadow();
+  }
+  else
+    setTransparent();
+
+  FString line(getClientWidth(), wchar_t(' '));
+
+  for (int n=1; n <= getClientHeight(); n++)
+  {
+    gotoxy(xpos+xmin, ypos+ymin+n);
+    print(line);
+  }
+
+  if ( shadow_win )
+    unsetTransShadow();
+  else
+    unsetTransparent();
+
+  if ( isMonochron() )
+    setReverse(false);
+
+  updateVTerm(true);
+}
+
+
+//----------------------------------------------------------------------
+// class MainWindow
+//----------------------------------------------------------------------
+
+#pragma pack(push)
+#pragma pack(1)
+
+class MainWindow : public FDialog
+{
+ private:
+   FString line1;
+   FString line2;
+
+ private:
+   MainWindow (const MainWindow&);    // Disabled copy constructor
+   MainWindow& operator = (const MainWindow&); // and operator '='
+   void draw();
+   void onClose (FCloseEvent*);
+   void onShow  (FShowEvent*);
+   void onTimer (FTimerEvent*);
+   void onAccel (FAccelEvent* ev)
+   {
+     close();
+     ev->accept();
+   }
+
+ public:
+   explicit MainWindow (FWidget* = 0);  // constructor
+  ~MainWindow();  // destructor
+};
+#pragma pack(pop)
+
+//----------------------------------------------------------------------
+MainWindow::MainWindow (FWidget* parent)
+  : FDialog(parent)
+  , line1()
+  , line2()
+{
+  line1 = "     .-.     .-.     .-.";
+  line2 = "`._.'   `._.'   `._.'   ";
+
+  Transparent* transpwin = new Transparent(this);
+  transpwin->setText("transparent");
+  transpwin->setGeometry (6, 11, 29, 12);
+  transpwin->show();
+
+  Transparent* shadowwin = new Transparent(this, true);
+  shadowwin->setText("shadow");
+  shadowwin->setGeometry (47, 11, 29, 12);
+  shadowwin->show();
+
+  // Statusbar at the bottom
+  FStatusBar* statusbar = new FStatusBar (this);
+  statusbar->setMessage("Press Q to quit");
+
+  addAccelerator('q');
+}
+
+//----------------------------------------------------------------------
+MainWindow::~MainWindow()
+{ }
+
+//----------------------------------------------------------------------
+void MainWindow::draw()
+{
+  FDialog::draw();
+  updateVTerm(false);
+  if ( isMonochron() )
+    setReverse(true);
+
+  setColor(foregroundColor, backgroundColor);
+  gotoxy(xpos+xmin, ypos+ymin+2);
+  print(line1);
+  gotoxy(xpos+xmin, ypos+ymin+3);
+  print(line2);
+
+  if ( isMonochron() )
+    setReverse(false);
+
+  updateVTerm(true);
+}
+
+//----------------------------------------------------------------------
+void MainWindow::onClose (FCloseEvent* ev)
+{
+  int ret = FMessageBox::info ( this, "Quit"
+                              , "Do you really want\n"
+                                "to quit the program ?"
+                              , FMessageBox::Yes
+                              , FMessageBox::No );
+  if ( ret == FMessageBox::Yes )
+    ev->accept();
+  else
+    ev->ignore();
+}
+
+//----------------------------------------------------------------------
+void MainWindow::onShow (FShowEvent*)
+{
+  addTimer(100);
+}
+
+//----------------------------------------------------------------------
+void MainWindow::onTimer (FTimerEvent*)
+{
+  wchar_t first_Char[2];
+  uInt length = line1.getLength();
+  first_Char[0] = line1[0];
+  first_Char[1] = line2[0];
+  line1 = line1.right(length - 1) + first_Char[0];
+  line2 = line2.right(length - 1) + first_Char[1];
+  redraw();
+  flush_out();
+}
+
+//----------------------------------------------------------------------
+//                               main part
+//----------------------------------------------------------------------
+
+int main (int argc, char* argv[])
+{
+  if ( argv[1] && (  strcmp(argv[1], "--help") == 0
+                  || strcmp(argv[1], "-h") == 0 ) )
+  {
+    std::cout << "Generic options:" << std::endl
+              << "  -h, --help                  "
+              << "Display this help and exit" << std::endl;
+    FApplication::print_cmd_Options();
+    exit(EXIT_SUCCESS);
+  }
+
+  FApplication app (argc, argv);
+
+  MainWindow main_dlg (&app);
+  main_dlg.setText ("non-transparent");
+  main_dlg.setGeometry (27, 3, 26, 7);
+
+  app.setMainWidget (&main_dlg);
+  main_dlg.show();
+
+  return app.exec();
+}