Generate localized messages in PNG format.

To support rendering messages in multiple resolution profiles, we need to keep
the images in its original format.

BUG=chrome-os-partner:11078
TEST=./text_to_png # images were converted correctly.

Old-Change-Id: I6e13331eddfa4c40b17b67b5cf56b5a0284e3b34
Reviewed-on: https://gerrit.chromium.org/gerrit/29605
Reviewed-by: Dave Parker <dparker@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
(cherry picked from commit 7f06cfd68d7bd184b37748267b07fdee779b6a85)

Change-Id: I6833a70bd5c942983323274421571fbbd12cfa45
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/30239

3 files changed, 32 insertions, 56 deletions

diff --git a/scripts/newbitmaps/strings/localized_text/Makefile b/scripts/newbitmaps/strings/localized_text/Makefile
index 1e26b638..bd074288 100644
--- a/scripts/newbitmaps/strings/localized_text/Makefile
+++ b/scripts/newbitmaps/strings/localized_text/Makefile
@@ -1,4 +1,4 @@
-# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+# Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
@@ -6,48 +6,19 @@ LOCALES=ar bg ca cs da de el en en_GB es es_419 et fa fi fil fr hi hr hu \
 	id it iw ja ko lt lv nl no pl pt_BR pt_PT ro ru sk sl sr sv th tr \
 	uk vi zh_CN zh_TW
 
-# Use "make PT=15" for 800x600 (x86)
-PT=15
-
-
 DIR_TARGETS=$(foreach DIR,$(LOCALES),$(DIR)-dir)
 
-CVT=../text_to_bmp --point=$(PT)
-
+CVT=../text_to_png
 
 default: $(DIR_TARGETS)
 
 %-dir:
-	$(CVT) $(subst -dir,,$@)/*.txt
-
-ar-dir:
-	$(CVT) --rtl --font="Droid Sans Arabic" $(subst -dir,,$@)/*.txt
-
-fa-dir:
-	$(CVT) --rtl $(subst -dir,,$@)/*.txt
-
-hi-dir:
-	$(CVT) --font="Lohit-Hindi" $(subst -dir,,$@)/*.txt
-
-iw-dir:
-	$(CVT) --rtl --font="Droid Sans Hebrew" $(subst -dir,,$@)/*.txt
-
-ja-dir:
-	$(CVT) --font="IPAPGothic" $(subst -dir,,$@)/*.txt
-
-ko-dir:
-	$(CVT) --font="NanumGothic" $(subst -dir,,$@)/*.txt
-
-th-dir:
-	$(CVT) --font="Droid Sans Thai" $(subst -dir,,$@)/*.txt
-
-zh_CN-dir:
-	$(CVT) --font="Droid Sans Fallback" $(subst -dir,,$@)/*.txt
-
-zh_TW-dir:
-	$(CVT) --font="Droid Sans Fallback" $(subst -dir,,$@)/*.txt
-
+	$(CVT) --lan=$(subst -dir,,$@) \
+	--font="$$(sed -nre 's/^$(subst -dir,,$@)="(.*)"/\1/p' font.conf)" \
+	$(subst -dir,,$@)/*.txt
 
+clean:
+	rm -f */*.png
 
 $(DIR_TARGETS) : FORCE
 
diff --git a/scripts/newbitmaps/strings/localized_text/font.conf b/scripts/newbitmaps/strings/localized_text/font.conf
new file mode 100644
index 00000000..ade7d26e
--- /dev/null
+++ b/scripts/newbitmaps/strings/localized_text/font.conf
@@ -0,0 +1,8 @@
+ar="Droid Sans Arabic"
+hi="Lohit-Hindi"
+iw="Droid Sans Hebrew"
+ja="IPAPGothic"
+ko="NanumGothic"
+th="Droid Sans Thai"
+zh_CN="Droid Sans Fallback"
+zh_TW="Droid Sans Fallback"
diff --git a/scripts/newbitmaps/strings/text_to_bmp b/scripts/newbitmaps/strings/text_to_png
index 54f35551..260ca1ae 100755
--- a/scripts/newbitmaps/strings/text_to_bmp
+++ b/scripts/newbitmaps/strings/text_to_png
@@ -8,21 +8,23 @@
 #
 # Options:
 #
-#    --rtl              Render right-to-left languages
-#    --font=FONTNAME    Use specified font (instead of Helvetica)
+#    --lan=LANGUAGE     Render language (locale) settings
+#    --font=FONTNAME    Use specified font (instead of Droid Sans)
 #
 font="Droid Sans"
-rtl=""
+language=""
 point=15
 
 while true ; do
   case "$1" in
-    --rtl)
-      rtl="--rtl"
+    --lan=* | --language=*)
+      language="--language ${1##*=}"
       shift
       ;;
     --font=*)
-      font="${1##*=}"
+      # Allows empty string = default font.
+      param="${1##*=}"
+      [ -n "$param" ] && font="$param"
       shift
       ;;
     --point=*)
@@ -40,44 +42,39 @@ done
 # - New pango-view has --pixel to assign font size in pixel, but that is not
 #   supported by old (ex, 1.24.5 in chroot) so we must assign --dpi 72 for
 #   pointsize.
+# TODO(hungte) Replace font color & size settings to pango --markup.
 bg="#ffffff"
 small_color="#000000"
 small_font="$font"
 small_pointsize="$point"
 large_color="#585858"
 large_font="$font"
-large_pointsize=40
-_x86_scale="-scale 59%x78%"
-_x86_opts="-colors 256 -compress none -alpha off"
+large_pointsize="$((point * 8 / 3))"
 
 for txtfile in $*; do
   # pango-view does not support assigning output format options for bitmap, so
-  # we first create the images in PNG format and then convert into BMP by
-  # ImageMagick.
+  # we must create images in PNG format and then post-process it (ex, convert
+  # into BMP by ImageMagick).
+
   pngfile="${txtfile%.*}".png
-  bmpfile="${txtfile%.*}".bmp
   case "$txtfile" in
     *.txt)
-      pango-view -q $rtl --no-auto-dir \
+      pango-view -q $language \
         --background "$bg" --foreground "$small_color" \
         --font "$small_font $small_pointsize" --dpi 72 \
         --margin=3 --align=center \
         --output "$pngfile" \
         "$txtfile"
-      convert ${_x86_scale} ${_x86_opts} "$pngfile" BMP3:"$bmpfile"
-      rm -f "$pngfile"
-      echo "wrote $bmpfile"
+      echo "wrote $pngfile"
       ;;
     *.TXT)
-      pango-view -q $rtl --no-auto-dir \
+      pango-view -q $language \
         --background "$bg" --foreground "$large_color" \
         --font "$large_font $large_pointsize" --dpi 72 \
         --margin=10 --align=center \
         --output "$pngfile" \
         "$txtfile"
-      convert ${_x86_scale} ${_x86_opts} " $pngfile" BMP3:"$bmpfile"
-      rm -f "$pngfile"
-      echo "wrote $bmpfile"
+      echo "wrote $pngfile"
       ;;
     *)
       echo "Ignoring $txtfile. Filename should end with .txt or .TXT"