added missing files

src/gui/WhatsNewDialog.cxx

@@ -0,0 +1,88 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll
+//  SS  SS   tt           ll   ll
+//  SS     tttttt  eeee   ll   ll   aaaa
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2020 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//============================================================================
+
+#include "Version.hxx"
+
+#include "WhatsNewDialog.hxx"
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+WhatsNewDialog::WhatsNewDialog(OSystem& osystem, DialogContainer& parent, const GUI::Font& font,
+                               int max_w, int max_h)
+  : Dialog(osystem, parent, font, "What's New in Stella " + string(STELLA_VERSION) + "?")
+{
+  const int lineHeight = _font.getLineHeight(),
+    fontHeight = _font.getFontHeight(),
+    fontWidth = _font.getMaxCharWidth(),
+    buttonHeight = _font.getLineHeight() * 1.25;
+  const int VGAP = fontHeight / 4;
+  const int VBORDER = fontHeight / 2;
+  const int HBORDER = fontWidth * 1.25;
+  int ypos = _th + VBORDER;
+
+
+  // Set preliminary dimensions
+  setSize(64 * fontWidth + HBORDER * 2, max_h,
+          max_w, max_h);
+
+  add(ypos, "added autofire");
+  add(ypos, "added new UI theme 'Dark'");
+  add(ypos, "extended global hotkeys for debug options");
+  add(ypos, "added option to playback a game using the Time Machine");
+  add(ypos, "allow taking snapshots from within the Time Machine dialog");
+  add(ypos, "added the ability to access most files that Stella uses from within a ZIP file");
+  add(ypos, "added option to select the audio device");
+  add(ypos, "added option to display detected settings info when a ROM is loaded");
+  add(ypos, "replaced 'Re-disassemble' with 'Disassemble @ current line' in debugger");
+  add(ypos, "fixed bug when taking fullscreen snapshots; the dimensions were sometimes cut");
+
+  // Set needed dimensions
+  setSize(64 * fontWidth + HBORDER * 2,
+          ypos + VGAP + buttonHeight + VBORDER,
+          max_w, max_h);
+
+  WidgetArray wid;
+  addOKBGroup(wid, _font);
+  addBGroupToFocusList(wid);
+
+  // We don't have a close/cancel button, but we still want the cancel
+  // event to be processed
+  processCancelWithoutWidget();
+}
+
+// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+void WhatsNewDialog::add(int& ypos, const string& text)
+{
+  const int lineHeight = _font.getLineHeight(),
+    fontHeight = _font.getFontHeight(),
+    fontWidth = _font.getMaxCharWidth(),
+    HBORDER = fontWidth * 1.25;
+  const string DOT = "\x1f"; 
+  string txt = DOT + " " + text;
+
+  // automatically wrap too long texts
+  while(txt.length() > 64)
+  {
+    int i = 64;
+
+    while(--i && txt[i] != ' ');
+    new StaticTextWidget(this, _font, HBORDER, ypos, txt.substr(0, i));
+    txt = " " + txt.substr(i);
+    ypos += fontHeight;
+  }
+  new StaticTextWidget(this, _font, HBORDER, ypos, txt);
+  ypos += lineHeight;
+}

src/gui/WhatsNewDialog.hxx

@@ -0,0 +1,41 @@
+//============================================================================
+//
+//   SSSS    tt          lll  lll
+//  SS  SS   tt           ll   ll
+//  SS     tttttt  eeee   ll   ll   aaaa
+//   SSSS    tt   ee  ee  ll   ll      aa
+//      SS   tt   eeeeee  ll   ll   aaaaa  --  "An Atari 2600 VCS Emulator"
+//  SS  SS   tt   ee      ll   ll  aa  aa
+//   SSSS     ttt  eeeee llll llll  aaaaa
+//
+// Copyright (c) 1995-2020 by Bradford W. Mott, Stephen Anthony
+// and the Stella Team
+//
+// See the file "License.txt" for information on usage and redistribution of
+// this file, and for a DISCLAIMER OF ALL WARRANTIES.
+//============================================================================
+
+#ifndef WHATSNEW_DIALOG_HXX
+#define WHATSNEW_DIALOG_HXX
+
+#include "Dialog.hxx"
+
+class WhatsNewDialog : public Dialog
+{
+  public:
+    // These must be accessible from dialogs created by this class
+    enum {
+      kLoadROMCmd = 'STRT',  // load currently selected ROM
+      kRomDirChosenCmd = 'romc'   // rom dir chosen
+    };
+
+  public:
+    WhatsNewDialog(OSystem& osystem, DialogContainer& parent, const GUI::Font& font,
+                   int max_w, int max_h);
+    virtual ~WhatsNewDialog() = default;
+
+  private:
+    void add(int& ypos, const string& text);
+};
+
+#endif