graphics: Generate HELP screens programatically.

Decompose the help screen into three parts: the background, the
text and the title. Generate all except the main text programatically:
the background as a color transformed version of the INTERPIC graphic
and the title using the textgen tool.

graphics/text/.gitignore

@@ -3,5 +3,6 @@ wi*.gif
 wilv*.gif
 cwilv*.gif
 dmwilv*.gif
+help*.gif
 prboom.gif
 graphics.stamp

graphics/text/Makefile

@@ -1,4 +1,4 @@
-GRAPHICS = \
+TEXTGEN_GRAPHICS = \
   m_detail.gif m_disopt.gif m_disp.gif   m_endgam.gif m_epi1.gif   \
   m_epi2.gif   m_epi3.gif   m_epi4.gif   m_episod.gif m_gdhigh.gif \
   m_gdlow.gif  m_hurt.gif   m_jkill.gif  m_lgttl.gif  m_loadg.gif  \
@@ -13,7 +13,7 @@ GRAPHICS = \
   m_mess.gif   m_mouse.gif  m_multi.gif  m_player.gif m_serial.gif \
   m_setup.gif  m_sound.gif  m_stat.gif   m_status.gif m_tcpip.gif  \
   m_versen.gif m_video.gif  m_wad.gif    m_wadopt.gif m_weap.gif   \
-  prboom.gif                                                       \
+  prboom.gif   helpttl.gif                                         \
   m_ultra.gif  wibp1.gif    wibp2.gif    wibp3.gif    wibp4.gif    \
   wicolon.gif  wienter.gif  wif.gif      wifrgs.gif   wipcnt.gif   \
   wiminus.gif  wimstar.gif  wimstt.gif   wiostf.gif   wiosti.gif   \
@@ -37,13 +37,13 @@ GRAPHICS = \
   wilv33.gif   wilv34.gif   wilv35.gif   wilv36.gif   wilv37.gif   \
   wilv38.gif
 
-all: $(GRAPHICS)
+all: $(TEXTGEN_GRAPHICS) help.gif
 
 # textgen creates multiple outputs, which is awkward to express in
 # make. Use a witness file (graphics.stamp) as suggested in the
 # automake manual: "Handling Tools that Produce Many Outputs"
 
-$(GRAPHICS): graphics.stamp
+$(TEXTGEN_GRAPHICS): graphics.stamp
 	@if test -f $@; then :; else \
 	  rm -f graphics.stamp; \
 	  $(MAKE) data.stamp; \
@@ -55,5 +55,14 @@ graphics.stamp: config.py fontchars ../../lumps/fraggle/freedoom.bex
 	./textgen
 	@mv graphics.tmp $@
 
+help.gif: helpbg.gif helptext.gif helpttl.gif
+	convert helpbg.gif                                 \
+	    -draw 'image over 0,0 0,0 helptext.gif'        \
+	    -draw 'image over 140,5 0,0 helpttl.gif'       \
+	    help.gif
+
+helpbg.gif: ../interpic.gif
+	convert ../interpic.gif -fill '#0077ff' -tint 50 helpbg.gif
+
 clean:
-	rm -f $(GRAPHICS) graphics.stamp *.pyc
+	rm -f $(TEXTGEN_GRAPHICS) helpbg.gif help.gif graphics.stamp *.pyc

graphics/text/config.py

@@ -210,6 +210,12 @@ red_graphics = {
 	'm_multi': 'Multiplayer',
 }
 
+# Rendered with transparent background:
+transparent_graphics = {
+	# Title for the HELP/HELP1 screen:
+	'helpttl': 'Help',
+}
+
 def read_bex_lump(filename):
 	"""Read the BEX (Dehacked) lump from the given filename.
 

graphics/text/textgen

@@ -208,20 +208,6 @@ class Font(object):
 
 		return command_line
 
-	def render_transparent_text(self, text, output_filename, color):
-		"""Render the given text to the given output file.
-
-		The rendered text is generated with a transparent background.
-		"""
-
-		if UPPERCASE_FONT:
-			text = text.upper()
-		command_line = self._make_command_line(text, color)
-
-		command_line.append(output_filename)
-
-		invoke_command(command_line)
-
 	def render_text(self, text, output_filename,
 	                color=COLOR_WHITE, bgcolor=BACKGROUND_COLOR):
 		"""Render text to a file with the given background color."""
@@ -230,16 +216,19 @@ class Font(object):
 			text = text.upper()
 		command_line = self._make_command_line(text, color)
 
-		command_line.extend([
-			'-background', bgcolor, '-flatten',
-			output_filename])
+		if bgcolor is not None:
+			command_line.extend([
+				'-background', bgcolor, '-flatten'])
+
+		command_line.append(output_filename)
 
 		invoke_command(command_line)
 
-def generate_graphics(graphics, color=COLOR_WHITE):
+def generate_graphics(graphics, color=COLOR_WHITE, bgcolor=BACKGROUND_COLOR):
 	for name, text in sorted(graphics.items()):
 		print("# %s.gif: '%s'" % (name, text))
-		font.render_text(text, '%s.gif' % name, color=color)
+		font.render_text(text, '%s.gif' % name,
+		                 color=color, bgcolor=bgcolor)
 
 def generate_kerning_test():
 	pairs = []
@@ -257,7 +246,8 @@ font = Font('fontchars', kerning_table=FONT_KERNING_RULES)
 # Enable to generate test image file for tweaking kerning values:
 #generate_kerning_test()
 
-generate_graphics(red_graphics, COLOR_RED)
-generate_graphics(blue_graphics, COLOR_BLUE)
-generate_graphics(white_graphics, COLOR_WHITE)
+generate_graphics(red_graphics, color=COLOR_RED)
+generate_graphics(blue_graphics, color=COLOR_BLUE)
+generate_graphics(white_graphics, color=COLOR_WHITE)
+generate_graphics(transparent_graphics, color=COLOR_RED, bgcolor=None)