Qt without tiles

Qt is capable of using an ascii map, and does so on the rogue level.
So failing to load tiles doesn't need to quit; it can continue in
text mode.

Not extensively tested.  This disables the paper doll when the ascii
map is forced (either via options settings or due to tiles loading
failure, but not when simply on the rogue level) rather than trying
to display it with object class characters.

doc/fixes37.0

@@ -1,4 +1,4 @@
-NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.287 $ $NHDT-Date: 1597704087 2020/08/17 22:41:27 $
+NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.288 $ $NHDT-Date: 1597707740 2020/08/17 23:42:20 $
 
 General Fixes and Modified Features
 -----------------------------------
@@ -349,6 +349,7 @@ curses: for vertical status, line up conditions in columns; usually two but
 msdos: add -DSTATUES_LOOK_LIKE_MONSTERS to Makefile1.cross so the VESA mode
 	can display statue glyphs
 Qt: quit if can't load tiles file instead of continuing and then segfaulting
+Qt: [later] tiles load failure at startup now continues using an ascii map
 Qt: use more columns for extended command selection dialog so that the number
 	of rows needed doesn't result in some commands being unaccessible
 Qt: suppress wizard mode commands from '#' handling when not in wizard mode

win/Qt/qt_glyph.cpp

@@ -46,16 +46,15 @@ NetHackQtGlyphs::NetHackQtGlyphs()
 	tile_file = iflags.wc_tile_file;
 
     if (!img.load(tile_file)) {
+        tiles_per_row = TILES_PER_ROW;
+
 	tile_file = PIXMAPDIR "/x11tiles";
 	if (!img.load(tile_file)) {
 	    QString msg;
-
             msg.sprintf("Cannot load 'nhtiles.bmp' or 'x11tiles'.");
-	    QMessageBox::warning(0, "IO Error", msg);
-            NetHackQtBind::qt_exit_nhwindows((const char *) 0);
-            nh_terminate(EXIT_FAILURE);
+            iflags.wc_ascii_map = 1;
+            iflags.wc_tiled_map = 0;
 	} else {
-	    tiles_per_row = TILES_PER_ROW;
             if (img.width() % tiles_per_row) {
                 impossible(
             "Tile file \"%s\" has %d columns, not multiple of row count (%d)",
@@ -68,8 +67,11 @@ NetHackQtGlyphs::NetHackQtGlyphs()
 
     if (iflags.wc_tile_width)
 	tilefile_tile_W = iflags.wc_tile_width;
+    else if (iflags.wc_ascii_map)
+	tilefile_tile_W = 16;
     else
 	tilefile_tile_W = img.width() / tiles_per_row;
+
     if (iflags.wc_tile_height)
 	tilefile_tile_H = iflags.wc_tile_height;
     else

win/Qt/qt_inv.cpp

@@ -85,6 +85,8 @@ void NetHackQtInvUsageWindow::paintEvent(QPaintEvent*)
     //      show leash-in-use on lower left side
 
 #ifdef ENHANCED_PAPERDOLL
+    if (iflags.wc_ascii_map)
+        qt_settings->doll_is_shown = false;
     if (!qt_settings->doll_is_shown)
         return;
     qt_settings->glyphs().setSize(qt_settings->dollWidth,
@@ -144,13 +146,17 @@ QSize NetHackQtInvUsageWindow::sizeHint(void) const
         // 1+X+1: one pixel border surrounding each tile in the paper doll,
         // so +1 left and +1 right, also +1 above and +1 below
 #ifdef ENHANCED_PAPERDOLL
+        if (iflags.wc_ascii_map)
+            qt_settings->doll_is_shown = false;
         if (qt_settings->doll_is_shown) {
             w = (1 + qt_settings->dollWidth + 1) * 3;
             h = (1 + qt_settings->dollHeight + 1) * 6;
         }
 #else
-        w = (1 + qt_settings->glyphs().width() + 1) * 3;
-        h = (1 + qt_settings->glyphs().height() + 1) * 6;
+        if (iflags.wc_tiles_map) {
+            w = (1 + qt_settings->glyphs().width() + 1) * 3;
+            h = (1 + qt_settings->glyphs().height() + 1) * 6;
+        }
 #endif
         return QSize(w, h);
     } else {

win/Qt/qt_set.cpp

@@ -196,6 +196,9 @@ NetHackQtSettings::NetHackQtSettings() :
 
 NetHackQtGlyphs& NetHackQtSettings::glyphs()
 {
+    // Caveat:
+    //  'theglyphs' will be Null if the tiles file couldn't be loaded;
+    //  the game can still procede with an ascii map in that situation.
     return *theglyphs;
 }
 
@@ -213,8 +216,10 @@ void NetHackQtSettings::resizeTiles()
     settings.setValue("tilewidth", tileWidth);
     settings.setValue("tileheight", tileHeight);
 
-    theglyphs->setSize(tileWidth, tileHeight);
-    emit tilesChanged();
+    if (theglyphs) {
+        theglyphs->setSize(tileWidth, tileHeight);
+        emit tilesChanged();
+    }
 }
 
 void NetHackQtSettings::toggleGlyphSize()