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https://github.com/koreader/koreader.git
synced 2025-08-10 00:52:38 +00:00
cleanup: expand tab to 4 spaces
This commit is contained in:
chrox
@@ -11,212 +11,212 @@ local DEBUG = require("dbg")
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BBoxWidget shows a bbox for page cropping
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]]
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local BBoxWidget = InputContainer:new{
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page_bbox = nil,
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screen_bbox = nil,
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linesize = 2,
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fine_factor = 10,
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page_bbox = nil,
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screen_bbox = nil,
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linesize = 2,
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fine_factor = 10,
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}
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function BBoxWidget:init()
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self.page_bbox = self.document:getPageBBox(self.view.state.page)
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--DEBUG("used page bbox on page", self.view.state.page, self.page_bbox)
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if Device:isTouchDevice() then
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self.ges_events = {
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TapAdjust = {
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GestureRange:new{
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ges = "tap",
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range = self.view.dimen,
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}
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},
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SwipeAdjust = {
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GestureRange:new{
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ges = "swipe",
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range = self.view.dimen,
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}
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},
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HoldAdjust = {
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GestureRange:new{
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ges = "hold",
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range = self.view.dimen,
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}
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},
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ConfirmAdjust = {
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GestureRange:new{
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ges = "double_tap",
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range = self.view.dimen,
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}
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}
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}
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end
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self.page_bbox = self.document:getPageBBox(self.view.state.page)
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--DEBUG("used page bbox on page", self.view.state.page, self.page_bbox)
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if Device:isTouchDevice() then
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self.ges_events = {
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TapAdjust = {
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GestureRange:new{
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ges = "tap",
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range = self.view.dimen,
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}
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},
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SwipeAdjust = {
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GestureRange:new{
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ges = "swipe",
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range = self.view.dimen,
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}
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},
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HoldAdjust = {
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GestureRange:new{
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ges = "hold",
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range = self.view.dimen,
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}
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},
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ConfirmAdjust = {
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GestureRange:new{
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ges = "double_tap",
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range = self.view.dimen,
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}
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}
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}
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end
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end
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function BBoxWidget:getSize()
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return self.view.dimen
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return self.view.dimen
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end
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function BBoxWidget:paintTo(bb, x, y)
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-- As getScreenBBox uses view states, screen_bbox initialization is postponed.
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self.screen_bbox = self.screen_bbox or self:getScreenBBox(self.page_bbox)
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local bbox = self.screen_bbox
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-- top edge
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bb:invertRect(bbox.x0 + self.linesize, bbox.y0, bbox.x1 - bbox.x0, self.linesize)
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-- bottom edge
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bb:invertRect(bbox.x0 + self.linesize, bbox.y1, bbox.x1 - bbox.x0 - self.linesize, self.linesize)
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-- left edge
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bb:invertRect(bbox.x0, bbox.y0, self.linesize, bbox.y1 - bbox.y0 + self.linesize)
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-- right edge
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bb:invertRect(bbox.x1, bbox.y0 + self.linesize, self.linesize, bbox.y1 - bbox.y0)
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-- As getScreenBBox uses view states, screen_bbox initialization is postponed.
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self.screen_bbox = self.screen_bbox or self:getScreenBBox(self.page_bbox)
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local bbox = self.screen_bbox
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-- top edge
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bb:invertRect(bbox.x0 + self.linesize, bbox.y0, bbox.x1 - bbox.x0, self.linesize)
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-- bottom edge
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bb:invertRect(bbox.x0 + self.linesize, bbox.y1, bbox.x1 - bbox.x0 - self.linesize, self.linesize)
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-- left edge
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bb:invertRect(bbox.x0, bbox.y0, self.linesize, bbox.y1 - bbox.y0 + self.linesize)
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-- right edge
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bb:invertRect(bbox.x1, bbox.y0 + self.linesize, self.linesize, bbox.y1 - bbox.y0)
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end
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-- transform page bbox to screen bbox
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function BBoxWidget:getScreenBBox(page_bbox)
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local bbox = {}
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local scale = self.view.state.zoom
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local screen_offset = self.view.state.offset
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--DEBUG("screen offset in page_to_screen", screen_offset)
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bbox.x0 = Math.round(page_bbox.x0 * scale + screen_offset.x)
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bbox.y0 = Math.round(page_bbox.y0 * scale + screen_offset.y)
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bbox.x1 = Math.round(page_bbox.x1 * scale + screen_offset.x)
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bbox.y1 = Math.round(page_bbox.y1 * scale + screen_offset.y)
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return bbox
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local bbox = {}
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local scale = self.view.state.zoom
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local screen_offset = self.view.state.offset
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--DEBUG("screen offset in page_to_screen", screen_offset)
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bbox.x0 = Math.round(page_bbox.x0 * scale + screen_offset.x)
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bbox.y0 = Math.round(page_bbox.y0 * scale + screen_offset.y)
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bbox.x1 = Math.round(page_bbox.x1 * scale + screen_offset.x)
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bbox.y1 = Math.round(page_bbox.y1 * scale + screen_offset.y)
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return bbox
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end
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-- transform screen bbox to page bbox
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function BBoxWidget:getPageBBox(screen_bbox)
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local bbox = {}
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local scale = self.view.state.zoom
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local screen_offset = self.view.state.offset
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--DEBUG("screen offset in screen_to_page", screen_offset)
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bbox.x0 = Math.round((screen_bbox.x0 - screen_offset.x) / scale)
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bbox.y0 = Math.round((screen_bbox.y0 - screen_offset.y) / scale)
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bbox.x1 = Math.round((screen_bbox.x1 - screen_offset.x) / scale)
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bbox.y1 = Math.round((screen_bbox.y1 - screen_offset.y) / scale)
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return bbox
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local bbox = {}
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local scale = self.view.state.zoom
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local screen_offset = self.view.state.offset
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--DEBUG("screen offset in screen_to_page", screen_offset)
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bbox.x0 = Math.round((screen_bbox.x0 - screen_offset.x) / scale)
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bbox.y0 = Math.round((screen_bbox.y0 - screen_offset.y) / scale)
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bbox.x1 = Math.round((screen_bbox.x1 - screen_offset.x) / scale)
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bbox.y1 = Math.round((screen_bbox.y1 - screen_offset.y) / scale)
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return bbox
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end
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function BBoxWidget:inPageArea(ges)
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local offset = self.view.state.offset
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local page_area = self.view.page_area
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local page_dimen = Geom:new{ x = offset.x, y = offset.y, h = page_area.h, w = page_area.w}
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return not ges.pos:notIntersectWith(page_dimen)
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local offset = self.view.state.offset
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local page_area = self.view.page_area
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local page_dimen = Geom:new{ x = offset.x, y = offset.y, h = page_area.h, w = page_area.w}
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return not ges.pos:notIntersectWith(page_dimen)
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end
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function BBoxWidget:adjustScreenBBox(ges, relative)
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--DEBUG("adjusting crop bbox with pos", ges.pos)
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if not self:inPageArea(ges) then return end
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local bbox = self.screen_bbox
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local upper_left = Geom:new{ x = bbox.x0, y = bbox.y0}
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local upper_right = Geom:new{ x = bbox.x1, y = bbox.y0}
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local bottom_left = Geom:new{ x = bbox.x0, y = bbox.y1}
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local bottom_right = Geom:new{ x = bbox.x1, y = bbox.y1}
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local upper_center = Geom:new{ x = (bbox.x0 + bbox.x1) / 2, y = bbox.y0}
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local bottom_center = Geom:new{ x = (bbox.x0 + bbox.x1) / 2, y = bbox.y1}
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local right_center = Geom:new{ x = bbox.x1, y = (bbox.y0 + bbox.y1) / 2}
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local left_center = Geom:new{ x = bbox.x0, y = (bbox.y0 + bbox.y1) / 2}
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local anchors = {
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upper_left, upper_center, upper_right,
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left_center, right_center,
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bottom_left, bottom_center, bottom_right,
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}
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local _, nearest = Math.tmin(anchors, function(a,b)
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return a:distance(ges.pos) > b:distance(ges.pos)
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end)
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--DEBUG("nearest anchor", nearest)
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if nearest == upper_left then
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upper_left.x = ges.pos.x
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upper_left.y = ges.pos.y
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elseif nearest == bottom_right then
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bottom_right.x = ges.pos.x
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bottom_right.y = ges.pos.y
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elseif nearest == upper_right then
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bottom_right.x = ges.pos.x
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upper_left.y = ges.pos.y
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elseif nearest == bottom_left then
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upper_left.x = ges.pos.x
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bottom_right.y = ges.pos.y
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elseif nearest == upper_center then
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if relative then
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local delta = 0
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if ges.direction == "north" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "south" then
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delta = ges.distance / self.fine_factor
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end
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upper_left.y = upper_left.y + delta
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else
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upper_left.y = ges.pos.y
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end
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elseif nearest == right_center then
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if relative then
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local delta = 0
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if ges.direction == "west" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "east" then
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delta = ges.distance / self.fine_factor
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end
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bottom_right.x = bottom_right.x + delta
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else
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bottom_right.x = ges.pos.x
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end
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elseif nearest == bottom_center then
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if relative then
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local delta = 0
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if ges.direction == "north" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "south" then
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delta = ges.distance / self.fine_factor
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end
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bottom_right.y = bottom_right.y + delta
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else
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bottom_right.y = ges.pos.y
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end
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elseif nearest == left_center then
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if relative then
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local delta = 0
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if ges.direction == "west" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "east" then
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delta = ges.distance / self.fine_factor
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end
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upper_left.x = upper_left.x + delta
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else
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upper_left.x = ges.pos.x
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end
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end
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self.screen_bbox = {
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x0 = Math.round(upper_left.x),
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y0 = Math.round(upper_left.y),
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x1 = Math.round(bottom_right.x),
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y1 = Math.round(bottom_right.y)
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}
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--DEBUG("adjusting crop bbox with pos", ges.pos)
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if not self:inPageArea(ges) then return end
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local bbox = self.screen_bbox
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local upper_left = Geom:new{ x = bbox.x0, y = bbox.y0}
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local upper_right = Geom:new{ x = bbox.x1, y = bbox.y0}
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local bottom_left = Geom:new{ x = bbox.x0, y = bbox.y1}
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local bottom_right = Geom:new{ x = bbox.x1, y = bbox.y1}
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local upper_center = Geom:new{ x = (bbox.x0 + bbox.x1) / 2, y = bbox.y0}
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local bottom_center = Geom:new{ x = (bbox.x0 + bbox.x1) / 2, y = bbox.y1}
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local right_center = Geom:new{ x = bbox.x1, y = (bbox.y0 + bbox.y1) / 2}
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local left_center = Geom:new{ x = bbox.x0, y = (bbox.y0 + bbox.y1) / 2}
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local anchors = {
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upper_left, upper_center, upper_right,
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left_center, right_center,
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bottom_left, bottom_center, bottom_right,
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}
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local _, nearest = Math.tmin(anchors, function(a,b)
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return a:distance(ges.pos) > b:distance(ges.pos)
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end)
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--DEBUG("nearest anchor", nearest)
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if nearest == upper_left then
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upper_left.x = ges.pos.x
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upper_left.y = ges.pos.y
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elseif nearest == bottom_right then
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bottom_right.x = ges.pos.x
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bottom_right.y = ges.pos.y
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elseif nearest == upper_right then
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bottom_right.x = ges.pos.x
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upper_left.y = ges.pos.y
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elseif nearest == bottom_left then
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upper_left.x = ges.pos.x
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bottom_right.y = ges.pos.y
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elseif nearest == upper_center then
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if relative then
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local delta = 0
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if ges.direction == "north" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "south" then
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delta = ges.distance / self.fine_factor
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end
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upper_left.y = upper_left.y + delta
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else
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upper_left.y = ges.pos.y
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end
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elseif nearest == right_center then
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if relative then
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local delta = 0
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if ges.direction == "west" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "east" then
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delta = ges.distance / self.fine_factor
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end
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bottom_right.x = bottom_right.x + delta
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else
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bottom_right.x = ges.pos.x
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end
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elseif nearest == bottom_center then
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if relative then
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local delta = 0
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if ges.direction == "north" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "south" then
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delta = ges.distance / self.fine_factor
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end
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bottom_right.y = bottom_right.y + delta
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else
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bottom_right.y = ges.pos.y
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end
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elseif nearest == left_center then
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if relative then
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local delta = 0
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if ges.direction == "west" then
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delta = -ges.distance / self.fine_factor
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elseif ges.direction == "east" then
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delta = ges.distance / self.fine_factor
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end
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upper_left.x = upper_left.x + delta
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else
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upper_left.x = ges.pos.x
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end
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end
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self.screen_bbox = {
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x0 = Math.round(upper_left.x),
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y0 = Math.round(upper_left.y),
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x1 = Math.round(bottom_right.x),
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y1 = Math.round(bottom_right.y)
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}
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UIManager.repaint_all = true
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UIManager.repaint_all = true
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end
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function BBoxWidget:getModifiedPageBBox()
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return self:getPageBBox(self.screen_bbox)
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return self:getPageBBox(self.screen_bbox)
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end
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function BBoxWidget:onTapAdjust(arg, ges)
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self:adjustScreenBBox(ges)
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return true
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self:adjustScreenBBox(ges)
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return true
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end
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function BBoxWidget:onSwipeAdjust(arg, ges)
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self:adjustScreenBBox(ges, true)
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return true
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self:adjustScreenBBox(ges, true)
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return true
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end
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function BBoxWidget:onHoldAdjust(arg, ges)
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self:adjustScreenBBox(ges)
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return true
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self:adjustScreenBBox(ges)
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return true
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end
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function BBoxWidget:onConfirmAdjust(arg, ges)
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if self:inPageArea(ges) then
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self.ui:handleEvent(Event:new("ConfirmPageCrop"))
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end
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return true
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if self:inPageArea(ges) then
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self.ui:handleEvent(Event:new("ConfirmPageCrop"))
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end
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return true
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end
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return BBoxWidget
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