Inline images

configure.ac

@@ -69,6 +69,8 @@ AC_ARG_WITH([themes],
     [AS_HELP_STRING([--with-themes[[=PATH]]], [install themes (default yes)])])
 AC_ARG_ENABLE([icons-and-clipboard],
     [AS_HELP_STRING([--enable-icons-and-clipboard], [enable GTK tray icons and clipboard paste support])])
+AC_ARG_ENABLE([inline-images],
+    [AS_HELP_STRING([--enable-inline-images], [enable inline display of images])])
 
 ### plugins
 
@@ -323,6 +325,16 @@ if test "x$enable_omemo" != xno; then
    AM_COND_IF([BUILD_OMEMO], [AC_DEFINE([HAVE_OMEMO], [1], [Have OMEMO])])
 fi
 
+if test "x$enable_inline_images" = xyes; then
+    PKG_CHECK_MODULES([pixbuf], [gdk-pixbuf-2.0], [],
+        [AC_MSG_ERROR([gdk-pixbuf-2.0 from glib-2.0 is required for inline image support])])
+
+    PKG_CHECK_MODULES([chafa], [chafa >= 1.4.1], [],
+        [AC_MSG_ERROR([chafa >= 1.4.1 needed for inline image support])])
+
+   AC_DEFINE([HAVE_INLINE_IMAGE], [1], [Have inline image])
+fi
+
 AS_IF([test "x$with_themes" = xno],
     [THEMES_INSTALL="false"],
     [THEMES_INSTALL="true"])
@@ -359,9 +371,9 @@ 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 +407,9 @@ cons_about(void)
     getmaxyx(stdscr, rows, cols);
 
     if (prefs_get_boolean(PREF_SPLASH)) {
+#ifdef HAVE_INLINE_IMAGE
+        win_pictest(console);
+#endif
         _cons_splash_logo();
     } else {
 

src/ui/window.c

@@ -52,6 +52,11 @@
 #include <curses.h>
 #endif
 
+#ifdef HAVE_INLINE_IMAGE
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <chafa.h>
+#endif
+
 #include "log.h"
 #include "config/theme.h"
 #include "config/preferences.h"
@@ -1953,3 +1958,62 @@ win_insert_last_read_position_marker(ProfWin* window, char* id)
 
     g_date_time_unref(time);
 }
+
+#ifdef HAVE_INLINE_IMAGE
+void
+win_pictest(ProfWin* window)
+{
+    gchar *path = get_expanded_path("~/test.png");
+    GdkPixbuf *file = gdk_pixbuf_new_from_file (path, NULL);
+    if (file == NULL) {
+        win_println(window, THEME_ERROR, "!", "pictest");
+        g_free(path);
+        return;
+    }
+    g_free(path);
+
+    ChafaCanvasConfig *config;
+    ChafaCanvas *canvas;
+    ChafaSymbolMap *symbol_map;
+
+    symbol_map = chafa_symbol_map_new ();
+    chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_ASCII);
+    //chafa_symbol_map_add_by_tags (symbol_map, CHAFA_SYMBOL_TAG_ALL);
+    //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);
+
+    // calculate how much space we have on curent screen
+    gint width = getmaxx(stdscr);
+    gint height = screen_mainwin_row_end() - screen_mainwin_row_end();
+    // get recommended canvas size. image will be scaled accordingly
+    chafa_calc_canvas_geometry(gdk_pixbuf_get_width(file), gdk_pixbuf_get_height(file),
+            &width,
+            &height,
+            0.5,
+            TRUE,
+            FALSE);
+
+    // 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, width, height);
+    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);
+
+    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_println(window, THEME_DEFAULT, "!", gs->str);
+}
+#endif

src/ui/window.h

@@ -93,4 +93,8 @@ 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);
 
+#ifdef HAVE_INLINE_IMAGE
+void win_pictest(ProfWin* window);
+#endif
+
 #endif