Test displaying of inline pictures

First tests with libchafa for displaying pictures inline.
We choose to use ASCII art for now. Reason is that the regular method
uses color escape codes and ncurses will just print those codes and not
use the colors.

Regards https://github.com/profanity-im/profanity/issues/1301

configure.ac

@@ -191,6 +191,9 @@ PKG_CHECK_MODULES([glib], [glib-2.0 >= 2.62.0], [],
     [AC_MSG_ERROR([glib 2.62.0 or higher is required for profanity])])
 PKG_CHECK_MODULES([gio], [gio-2.0], [],
     [AC_MSG_ERROR([libgio-2.0 from glib-2.0 is required for profanity])])
+#TODO: only under cond
+PKG_CHECK_MODULES([pixbuf], [gdk-pixbuf-2.0], [],
+    [AC_MSG_ERROR([gdk-pixbuf-2.0 from glib-2.0 is required for profanity])])
 
 ### Check for other profanity dependencies
 AC_SEARCH_LIBS([fmod], [m], [],
@@ -203,6 +206,10 @@ PKG_CHECK_MODULES([curl], [libcurl], [],
 PKG_CHECK_MODULES([SQLITE], [sqlite3 >= 3.22.0], [],
     [AC_MSG_ERROR([sqlite3 3.22.0 or higher is required for profanity])])
 
+#TODO: only under cond
+PKG_CHECK_MODULES([chafa], [chafa >= 1.4.1], [],
+    [AC_MSG_ERROR([chafa needed])])
+
 AS_IF([test "x$enable_icons_and_clipboard" != xno],
     [PKG_CHECK_MODULES([GTK], [gtk+-3.0 >= 3.24.0],
         [AC_DEFINE([HAVE_GTK], [1], [libgtk module])],
@@ -359,9 +366,9 @@ AS_IF([test "x$PACKAGE_STATUS" = xdevelopment],
 AS_IF([test "x$PLATFORM" = xosx],
     [AM_CFLAGS="$AM_CFLAGS -Qunused-arguments"])
 AM_LDFLAGS="$AM_LDFLAGS -export-dynamic"
-AM_CPPFLAGS="$AM_CPPFLAGS $glib_CFLAGS $gio_CFLAGS $curl_CFLAGS $libnotify_CFLAGS $PYTHON_CPPFLAGS ${GTK_CFLAGS} ${SQLITE_CFLAGS}"
+AM_CPPFLAGS="$AM_CPPFLAGS $glib_CFLAGS $gio_CFLAGS $curl_CFLAGS $libnotify_CFLAGS $PYTHON_CPPFLAGS ${GTK_CFLAGS} ${SQLITE_CFLAGS} ${chafa_CFLAGS}"
 AM_CPPFLAGS="$AM_CPPFLAGS -DTHEMES_PATH=\"\\\"$THEMES_PATH\\\"\" -DICONS_PATH=\"\\\"$ICONS_PATH\\\"\""
-LIBS="$glib_LIBS $gio_LIBS $curl_LIBS $libnotify_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_LDFLAGS ${GTK_LIBS} ${SQLITE_LIBS} $LIBS"
+LIBS="$glib_LIBS $gio_LIBS $curl_LIBS $libnotify_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_LDFLAGS ${GTK_LIBS} ${SQLITE_LIBS} ${chafa_LIBS} $LIBS"
 
 AC_SUBST(AM_LDFLAGS)
 AC_SUBST(AM_CFLAGS)

src/ui/console.c

@@ -407,6 +407,7 @@ cons_about(void)
     getmaxyx(stdscr, rows, cols);
 
     if (prefs_get_boolean(PREF_SPLASH)) {
+        win_pictest(console);
         _cons_splash_logo();
     } else {
 

src/ui/window.c

@@ -44,6 +44,10 @@
 
 #include <glib.h>
 
+//TODO: ifdef
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <chafa.h>
+
 #ifdef HAVE_NCURSESW_NCURSES_H
 #include <ncursesw/ncurses.h>
 #elif HAVE_NCURSES_H
@@ -1953,3 +1957,48 @@ win_insert_last_read_position_marker(ProfWin* window, char* id)
 
     g_date_time_unref(time);
 }
+
+void
+win_pictest(ProfWin* window)
+{
+    GdkPixbuf *file = gdk_pixbuf_new_from_file ("/home/michael/Pictures/test.png", NULL);
+    //GdkPixbuf *file = gdk_pixbuf_new_from_file ("/home/michael/ask2.png", NULL);
+    if (file == NULL) {
+        win_println(window, THEME_ERROR, "!", "pictest");
+        return;
+    }
+    ChafaCanvasConfig *config;
+    ChafaCanvas *canvas;
+    ChafaSymbolMap *symbol_map;
+
+    symbol_map = chafa_symbol_map_new ();
+    //chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_ALL);
+    chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_ASCII);
+    //chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_BRAILLE);
+    //chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_BLOCK | CHAFA_SYMBOL_TAG_BORDER);
+    //chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_BLOCK | CHAFA_SYMBOL_TAG_BORDER | CHAFA_SYMBOL_TAG_SPACE);
+
+    // TODO: use chafa_calc_canvas_geometry() to get recommended canvas size
+    // TODO: could be a that a user shrinks its terminal. then we would need to redraw I guess?
+
+    config = chafa_canvas_config_new ();
+    //chafa_canvas_config_set_geometry (config, 23, 12);
+    chafa_canvas_config_set_geometry (config, 100, 65);
+    chafa_canvas_config_set_symbol_map (config, symbol_map);
+    // mono for now (no escape code)
+    chafa_canvas_config_set_canvas_mode (config, CHAFA_CANVAS_MODE_FGBG);
+
+    canvas = chafa_canvas_new (config);
+
+                                  //CHAFA_PIXEL_RGBA8_UNASSOCIATED,
+    guchar *pixels = gdk_pixbuf_get_pixels (file);
+    chafa_canvas_draw_all_pixels (canvas,
+                                  CHAFA_PIXEL_ARGB8_UNASSOCIATED,
+                                  pixels,
+                                  gdk_pixbuf_get_width(file),
+                                  gdk_pixbuf_get_height(file),
+                                  gdk_pixbuf_get_rowstride(file));
+
+    GString *gs = chafa_canvas_build_ansi (canvas);
+    win_print(window, THEME_DEFAULT, "!", gs->str);
+}

src/ui/window.h

@@ -93,4 +93,7 @@ void win_sub_page_up(ProfWin* window);
 void win_insert_last_read_position_marker(ProfWin* window, char* id);
 void win_remove_entry_message(ProfWin* window, const char* const id);
 
+// TODO: ifdef
+void win_pictest(ProfWin* window);
+
 #endif