Hello!
I am currently checking the various font glyphs available on the iPhone by displaying them on the screen. While the following code runs fine in the Simulator, the actual iPhone stops displaying the current text during the process (while still continuing to run).
Here is the code:
---------------------------------------------------------------------------------- Copyright (c) 2010 Andreas Rozek---- Permission is hereby granted, free of charge, to any person obtaining a copy-- of this software and associated documentation files (the "Software"),to deal-- in the Software without restriction, including without limitation the rights-- to use, copy, modify, merge, publish, distribute, sublicense, and/or sell-- copies of the Software, and to permit persons to whom the Software is fur--- nished to do so, subject to the following conditions:---- The above copyright notice and this permission notice shall be included in-- all copies or substantial portions of the Software.---- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR-- IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,-- FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE-- AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIA--- BILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,-- OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN-- THE SOFTWARE.---- Additionally, any modifications to the original Software must be clearly-- marked in a way, that the original author will never be considered as the-- author of these modifications!----------------------------------------------------------------------------------\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*--\* \*--\* Console Output \*--\* \*--\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\* io.stdout:setvbuf("no"); io.stderr:setvbuf("no");---------------------------------------------------------------------------------- complain[ln] writes the given arguments onto stderr ---------------------------------------------------------------------------------- function complain (...) for i = 1,select('#',...) do -- even "nil" is handled properly io.stderr:write(tostring(select(i,...))); end; end; function complainln (...) for i = 1,select('#',...) do -- even "nil" is handled properly io.stderr:write(tostring(select(i,...))); end; io.stderr:write("\n"); end;---------------------------------------------------------------------------------- cry[ln] just synonyms for complain[ln] ---------------------------------------------------------------------------------- cry = complain; cryln = complainln;---------------------------------------------------------------------------------- inform[ln] writes the given arguments onto stdout ---------------------------------------------------------------------------------- function inform (...) for i = 1,select('#',...) do -- even "nil" is handled properly io.stdout:write(tostring(select(i,...))); end; end; function informln (...) for i = 1,select('#',...) do -- even "nil" is handled properly io.stdout:write(tostring(select(i,...))); end; io.stdout:write("\n"); end;---------------------------------------------------------------------------------- say[ln] just synonyms for inform[ln] ---------------------------------------------------------------------------------- say = inform; sayln = informln; local StageWidth,StageHeight = display.stageWidth,display.stageHeight;---------------------------------------------------------------------------------- CodeToUTF8 converts a (valid!) code point into a UTF-8 sequence ---------------------------------------------------------------------------------- function CodeToUTF8 (Unicode) if (Unicode \<= 0x7F) then return string.char(Unicode); end; if (Unicode \<= 0x7FF) then local Byte0 = 0xC0 + math.floor(Unicode / 0x40); local Byte1 = 0x80 + (Unicode % 0x40); return string.char(Byte0, Byte1); end; if (Unicode \<= 0xFFFF) then local Byte0 = 0xE0 + math.floor(Unicode / 0x1000); local Byte1 = 0x80 + (math.floor(Unicode / 0x40) % 0x40); local Byte2 = 0x80 + (Unicode % 0x40); return string.char(Byte0, Byte1, Byte2); end; return ""; -- ignore UTF-32 for the moment end;---------------------------------------------------------------------------------- CodeFromUTF8 converts a (valid!) UTF-8 sequence into a Unicode code point ---------------------------------------------------------------------------------- function CodeFromUTF8 (UTF8) local Byte0 = string.byte(UTF8,1); if (math.floor(Byte0 / 0x80) == 0) then return Byte0; end; local Byte1 = string.byte(UTF8,2) % 0x40; if (math.floor(Byte0 / 0x20) == 0x06) then return (Byte0 % 0x20)\*0x40 + Byte1; end; local Byte2 = string.byte(UTF8,3) % 0x40; if (math.floor(Byte0 / 0x10) == 0x0E) then return (Byte0 % 0x10)\*0x1000 + Byte1\*0x40 + Byte2; end; local Byte3 = string.byte(UTF8,4) % 0x40; if (math.floor(Byte0 / 0x08) == 0x1E) then return (Byte0 % 0x08)\*0x40000 + Byte1\*0x1000 + Byte2\*0x40 + Byte3; end; end; function showCharacter (Event) repeat TextObject.text = CodeToUTF8(Unicode); if (TextObject.stageWidth \> 0) and (TextObject.stageHeight \> 0) then local StageBounds = TextObject.stageBounds; display.getCurrentStage():remove(FrameObject); FrameObject = display.newRect( StageBounds.xMin,StageBounds.yMin, StageBounds.xMax-StageBounds.xMin,StageBounds.yMax-StageBounds.yMin ); FrameObject.strokeWidth = 1; FrameObject:setStrokeColor(255,0,0); end; Unicode = Unicode+1; until (TextObject.stageWidth \> 0) or (Unicode \> 65535); if (Unicode \<= 65536) then GlyphCount = GlyphCount+1; minWidth = math.min (minWidth,TextObject.stageWidth); maxWidth = math.max (maxWidth,TextObject.stageWidth); minHeight = math.min(minHeight,TextObject.stageHeight); maxHeight = math.max(maxHeight,TextObject.stageHeight); end; if (Unicode \<= 65535) then timer.performWithDelay(1,showCharacter); else sayln("Statistics:"); sayln(" - ",GlyphCount," glyphs shown (out of 65536)"); sayln(" - glyph widths = ",minWidth,"...",maxWidth); sayln(" - glyph heights = ",minHeight,"...",maxHeight); end; end;---------------------------------------------------------------------------------- Display Elements ---------------------------------------------------------------------------------- local TitleLabel = display.newText("Bitmap Font Test", 0,0, nil, 14); TitleLabel:setReferencePoint(display.CenterReferencePoint); TitleLabel.x = StageWidth/2; TitleLabel.y = 20; TitleLabel:setTextColor(222,222,222); Unicode,GlyphCount = 0,0; minWidth,maxWidth,minHeight,maxHeight = 1000,0,1000,0; TextObject = display.newText(CodeToUTF8(Unicode), 0,0, nil, 128); TextObject:setReferencePoint(display.CenterReferencePoint); TextObject.x = StageWidth/2; TextObject.y = StageHeight/2; TextObject:setTextColor(255,255,255); FrameObject = display.newRect(0,0, 1,1); -- will be renewed later showCharacter(0)Kind regards,
Andreas Rozek [import]uid: 4331 topic_id: 852 reply_id: 300852[/import]