add writing direction option when reflowing

This probably will fix #195.

frontend/document/koptinterface.lua

@@ -62,12 +62,12 @@ function KoptInterface:createContext(doc, pageno, bbox)
 	kc:setTrim(doc.configurable.trim_page)
 	kc:setWrap(doc.configurable.text_wrap)
 	kc:setIndent(doc.configurable.detect_indent)
-	kc:setRotate(doc.configurable.screen_rotation)
 	kc:setColumns(doc.configurable.max_columns)
 	kc:setDeviceDim(screen_size.w, screen_size.h)
 	kc:setDeviceDPI(self.screen_dpi)
 	kc:setStraighten(doc.configurable.auto_straighten)
 	kc:setJustification(doc.configurable.justification)
+	kc:setWritingDirection(doc.configurable.writing_direction)
 	kc:setZoom(doc.configurable.font_size)
 	kc:setMargin(doc.configurable.page_margin)
 	kc:setQuality(doc.configurable.quality)

frontend/ui/data/koptoptions.lua

@@ -72,30 +72,6 @@ local KoptOptions = {
 				values = {1.0, 1.2, 1.4},
 				default_value = DKOPTREADER_CONFIG_LINE_SPACING,
 			},
-			{
-				name = "max_columns",
-				name_text = S.COLUMNS,
-				item_icons = {
-					"resources/icons/appbar.column.one.png",
-					"resources/icons/appbar.column.two.png",
-					"resources/icons/appbar.column.three.png",
-				},
-				values = {1,2,3},
-				default_value = DKOPTREADER_CONFIG_MAX_COLUMNS,
-			},
-			{
-				name = "justification",
-				name_text = S.TEXT_ALIGN,
-				item_icons = {
-					"resources/icons/appbar.align.auto.png",
-					"resources/icons/appbar.align.left.png",
-					"resources/icons/appbar.align.center.png",
-					"resources/icons/appbar.align.right.png",
-					"resources/icons/appbar.align.justify.png",
-				},
-				values = {-1,0,1,2,3},
-				default_value = DKOPTREADER_CONFIG_JUSTIFICATION,
-			},
 		}
 	},
 	{
@@ -172,13 +148,6 @@ local KoptOptions = {
 				event = "DocLangUpdate",
 				args = DKOPTREADER_CONFIG_DOC_LANGS_CODE,
 			},
-			{
-				name="screen_rotation",
-				name_text = S.VERTICAL_TEXT,
-				toggle = {S.ON, S.OFF},
-				values = {90, 0},
-				default_value = 0,
-			},
 			{
 				name = "word_spacing",
 				name_text = S.WORD_GAP,
@@ -187,12 +156,11 @@ local KoptOptions = {
 				default_value = DKOPTREADER_CONFIG_DEFAULT_WORD_SAPCING,
 			},
 			{
-				name = "defect_size",
-				name_text = S.DEFECT_SIZE,
-				toggle = {S.SMALL, S.MEDIUM, S.LARGE},
-				values = {1.0, 3.0, 5.0},
-				default_value = DKOPTREADER_CONFIG_DEFECT_SIZE,
-				event = "DefectSizeUpdate",
+				name = "writing_direction",
+				name_text = S.WRITING_DIR,
+				toggle = {S.LTR, S.RTL, S.TBRTL},
+				values = {0, 1, 2},
+				default_value = 0,
 			},
 			{
 				name = "quality",
@@ -201,6 +169,39 @@ local KoptOptions = {
 				values={0.5, 1.0, 1.5},
 				default_value = DKOPTREADER_CONFIG_RENDER_QUALITY,
 			},
+			{
+				name = "max_columns",
+				name_text = S.COLUMNS,
+				item_icons = {
+					"resources/icons/appbar.column.one.png",
+					"resources/icons/appbar.column.two.png",
+					"resources/icons/appbar.column.three.png",
+				},
+				values = {1,2,3},
+				default_value = DKOPTREADER_CONFIG_MAX_COLUMNS,
+			},
+			{
+				name = "justification",
+				name_text = S.TEXT_ALIGN,
+				item_icons = {
+					"resources/icons/appbar.align.auto.png",
+					"resources/icons/appbar.align.left.png",
+					"resources/icons/appbar.align.center.png",
+					"resources/icons/appbar.align.right.png",
+					"resources/icons/appbar.align.justify.png",
+				},
+				values = {-1,0,1,2,3},
+				default_value = DKOPTREADER_CONFIG_JUSTIFICATION,
+			},
+			{
+				name = "defect_size",
+				name_text = S.DEFECT_SIZE,
+				toggle = {S.SMALL, S.MEDIUM, S.LARGE},
+				values = {1.0, 3.0, 5.0},
+				default_value = DKOPTREADER_CONFIG_DEFECT_SIZE,
+				event = "DefectSizeUpdate",
+				show = false,
+			},
 			{
 				name = "auto_straighten",
 				name_text = S.AUTO_STRAIGHTEN,

frontend/ui/data/strings.lua

@@ -24,6 +24,7 @@ S.FONT_WEIGHT = _("Font weight")
 S.GAMMA = _("Gamma")
 S.VIEW_MODE = _("View mode")
 S.EMBEDDED_STYLE = _("Embedded style")
+S.WRITING_DIR = _("Writing Direction")
 
 S.ON = _("on")
 S.OFF = _("off")
@@ -50,5 +51,9 @@ S.LANDSCAPE = _("landscape")
 S.TOGGLE_BOLD = _("toggle bold")
 S.VIEW_SCROLL = _("scroll")
 S.VIEW_PAGE = _("page")
+S.LTR = _("LTR")
+S.RTL = _("RTL")
+S.TBRTL = _("TBRTL")
+S.TBLTR = _("TBLTR")
 
 return S

koreader-base

@@ -1 +1 @@
-Subproject commit 949054571038a7467f25f013cd2b5c282dfbc0b8
+Subproject commit 756cd1ed83c598824cfc8678e9cbd488ef0c9c2b