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line_demo.py
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### ## * << Haru Free PDF Library 2.0.0 >> -- line_demo.c ## * ## * Copyright (c) 1999-2006 Takeshi Kanno <takeshi_kanno@est.hi-ho.ne.jp> ## * ## * Permission to use, copy, modify, distribute and sell this software ## * and its documentation for any purpose is hereby granted without fee, ## * provided that the above copyright notice appear in all copies and ## * that both that copyright notice and this permission notice appear ## * in supporting documentation. ## * It is provided "as is" without express or implied warranty. ## * ## ## port to python by Li Jun ## http://groups.google.com/group/pythoncia import os, sys from ctypes import * up=2 def setlibpath(up): import sys path=os.path.normpath(os.path.split(os.path.realpath(__file__))[0]+'\..'*up) if path not in sys.path: sys.path.append(path) setlibpath(up) from haru import * from haru.c_func import * from haru.hpdf_errorcode import * @HPDF_Error_Handler(None, HPDF_UINT, HPDF_UINT, c_void_p) def error_handler (error_no, detail_no, user_data): global pdf printf ("ERROR: %s, detail_no=%u\n", error_detail[error_no], detail_no) HPDF_Free (pdf) sys.exit(1) def draw_line (page, x, y, label): HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, x, y - 10) HPDF_Page_ShowText (page, label) HPDF_Page_EndText (page) HPDF_Page_MoveTo (page, x, y - 15) HPDF_Page_LineTo (page, x + 220, y - 15) HPDF_Page_Stroke (page) def draw_line2 (page, x, y, label): HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, x, y) HPDF_Page_ShowText (page, label) HPDF_Page_EndText (page) HPDF_Page_MoveTo (page, x + 30, y - 25) HPDF_Page_LineTo (page, x + 160, y - 25) HPDF_Page_Stroke (page) def draw_rect (page, x, y, label): HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, x, y - 10) HPDF_Page_ShowText (page, label) HPDF_Page_EndText (page) HPDF_Page_Rectangle(page, x, y - 40, 220, 25) def main (): global pdf page_title = "Line Example" DASH_MODE1= [3] DASH_MODE2= [3, 7] DASH_MODE3= [8, 7, 2, 7] fname=os.path.realpath(sys.argv[0]) fname=fname[:fname.rfind('.')]+'.pdf' pdf = HPDF_New (error_handler, NULL) if (not pdf): printf ("error: cannot create PdfDoc object\n") return 1 # create default-font font = HPDF_GetFont (pdf, "Helvetica", NULL) # add a new page object. page = HPDF_AddPage (pdf) # print the lines of the page. HPDF_Page_SetLineWidth (page, 1) HPDF_Page_Rectangle (page, 50, 50, HPDF_Page_GetWidth(page) - 100, HPDF_Page_GetHeight (page) - 110) HPDF_Page_Stroke (page) # print the title of the page (with positioning center). HPDF_Page_SetFontAndSize (page, font, 24) tw = HPDF_Page_TextWidth (page, page_title) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, (HPDF_Page_GetWidth(page) - tw) / 2, HPDF_Page_GetHeight (page) - 50) HPDF_Page_ShowText (page, page_title) HPDF_Page_EndText (page) HPDF_Page_SetFontAndSize (page, font, 10) # Draw various widths of lines. HPDF_Page_SetLineWidth (page, 0) draw_line (page, 60, 770, "line width = 0") HPDF_Page_SetLineWidth (page, 1.0) draw_line (page, 60, 740, "line width = 1.0") HPDF_Page_SetLineWidth (page, 2.0) draw_line (page, 60, 710, "line width = 2.0") # Line dash pattern HPDF_Page_SetLineWidth (page, 1.0) HPDF_Page_SetDash (page, DASH_MODE1, 1, 1) draw_line (page, 60, 680, "dash_ptn=[3], phase=1 -- " "2 on, 3 off, 3 on...") HPDF_Page_SetDash (page, DASH_MODE2, 2, 2) draw_line (page, 60, 650, "dash_ptn=[7, 3], phase=2 -- " "5 on 3 off, 7 on,...") HPDF_Page_SetDash (page, DASH_MODE3, 4, 0) draw_line (page, 60, 620, "dash_ptn=[8, 7, 2, 7], phase=0") HPDF_Page_SetDash (page, NULL, 0, 0) HPDF_Page_SetLineWidth (page, 30) HPDF_Page_SetRGBStroke (page, 0.0, 0.5, 0.0) # Line Cap Style HPDF_Page_SetLineCap (page, HPDF_BUTT_END) draw_line2 (page, 60, 570, "PDF_BUTT_END") HPDF_Page_SetLineCap (page, HPDF_ROUND_END) draw_line2 (page, 60, 505, "PDF_ROUND_END") HPDF_Page_SetLineCap (page, HPDF_PROJECTING_SQUARE_END) draw_line2 (page, 60, 440, "PDF_PROJECTING_SCUARE_END") # Line Join Style HPDF_Page_SetLineWidth (page, 30) HPDF_Page_SetRGBStroke (page, 0.0, 0.0, 0.5) HPDF_Page_SetLineJoin (page, HPDF_MITER_JOIN) HPDF_Page_MoveTo (page, 120, 300) HPDF_Page_LineTo (page, 160, 340) HPDF_Page_LineTo (page, 200, 300) HPDF_Page_Stroke (page) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 60, 360) HPDF_Page_ShowText (page, "PDF_MITER_JOIN") HPDF_Page_EndText (page) HPDF_Page_SetLineJoin (page, HPDF_ROUND_JOIN) HPDF_Page_MoveTo (page, 120, 195) HPDF_Page_LineTo (page, 160, 235) HPDF_Page_LineTo (page, 200, 195) HPDF_Page_Stroke (page) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 60, 255) HPDF_Page_ShowText (page, "PDF_ROUND_JOIN") HPDF_Page_EndText (page) HPDF_Page_SetLineJoin (page, HPDF_BEVEL_JOIN) HPDF_Page_MoveTo (page, 120, 90) HPDF_Page_LineTo (page, 160, 130) HPDF_Page_LineTo (page, 200, 90) HPDF_Page_Stroke (page) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 60, 150) HPDF_Page_ShowText (page, "PDF_BEVEL_JOIN") HPDF_Page_EndText (page) # Draw Rectangle HPDF_Page_SetLineWidth (page, 2) HPDF_Page_SetRGBStroke (page, 0, 0, 0) HPDF_Page_SetRGBFill (page, 0.75, 0.0, 0.0) draw_rect (page, 300, 770, "Stroke") HPDF_Page_Stroke (page) draw_rect (page, 300, 720, "Fill") HPDF_Page_Fill (page) draw_rect (page, 300, 670, "Fill then Stroke") HPDF_Page_FillStroke (page) # Clip Rect HPDF_Page_GSave (page); # Save the current graphic state draw_rect (page, 300, 620, "Clip Rectangle") HPDF_Page_Clip (page) HPDF_Page_Stroke (page) HPDF_Page_SetFontAndSize (page, font, 13) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 290, 600) HPDF_Page_SetTextLeading (page, 12) HPDF_Page_ShowText (page, "Clip Clip Clip Clip Clip Clipi Clip Clip Clip") HPDF_Page_ShowTextNextLine (page, "Clip Clip Clip Clip Clip Clip Clip Clip Clip") HPDF_Page_ShowTextNextLine (page, "Clip Clip Clip Clip Clip Clip Clip Clip Clip") HPDF_Page_EndText (page) HPDF_Page_GRestore (page) # Curve Example(CurveTo2) x = 330 y = 440 x1 = 430 y1 = 530 x2 = 480 y2 = 470 x3 = 480 y3 = 90 HPDF_Page_SetRGBFill (page, 0, 0, 0) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 300, 540) HPDF_Page_ShowText (page, "CurveTo2(x1, y1, x2. y2)") HPDF_Page_EndText (page) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, x + 5, y - 5) HPDF_Page_ShowText (page, "Current point") HPDF_Page_MoveTextPos (page, x1 - x, y1 - y) HPDF_Page_ShowText (page, "(x1, y1)") HPDF_Page_MoveTextPos (page, x2 - x1, y2 - y1) HPDF_Page_ShowText (page, "(x2, y2)") HPDF_Page_EndText (page) HPDF_Page_SetDash (page, DASH_MODE1, 1, 0) HPDF_Page_SetLineWidth (page, 0.5) HPDF_Page_MoveTo (page, x1, y1) HPDF_Page_LineTo (page, x2, y2) HPDF_Page_Stroke (page) HPDF_Page_SetDash (page, NULL, 0, 0) HPDF_Page_SetLineWidth (page, 1.5) HPDF_Page_MoveTo (page, x, y) HPDF_Page_CurveTo2 (page, x1, y1, x2, y2) HPDF_Page_Stroke (page) # Curve Example(CurveTo3) y -= 150 y1 -= 150 y2 -= 150 HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 300, 390) HPDF_Page_ShowText (page, "CurveTo3(x1, y1, x2. y2)") HPDF_Page_EndText (page) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, x + 5, y - 5) HPDF_Page_ShowText (page, "Current point") HPDF_Page_MoveTextPos (page, x1 - x, y1 - y) HPDF_Page_ShowText (page, "(x1, y1)") HPDF_Page_MoveTextPos (page, x2 - x1, y2 - y1) HPDF_Page_ShowText (page, "(x2, y2)") HPDF_Page_EndText (page) HPDF_Page_SetDash (page, DASH_MODE1, 1, 0) HPDF_Page_SetLineWidth (page, 0.5) HPDF_Page_MoveTo (page, x, y) HPDF_Page_LineTo (page, x1, y1) HPDF_Page_Stroke (page) HPDF_Page_SetDash (page, NULL, 0, 0) HPDF_Page_SetLineWidth (page, 1.5) HPDF_Page_MoveTo (page, x, y) HPDF_Page_CurveTo3 (page, x1, y1, x2, y2) HPDF_Page_Stroke (page) # Curve Example(CurveTo) y -= 150 y1 -= 160 y2 -= 130 x2 += 10 HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, 300, 240) HPDF_Page_ShowText (page, "CurveTo(x1, y1, x2. y2, x3, y3)") HPDF_Page_EndText (page) HPDF_Page_BeginText (page) HPDF_Page_MoveTextPos (page, x + 5, y - 5) HPDF_Page_ShowText (page, "Current point") HPDF_Page_MoveTextPos (page, x1 - x, y1 - y) HPDF_Page_ShowText (page, "(x1, y1)") HPDF_Page_MoveTextPos (page, x2 - x1, y2 - y1) HPDF_Page_ShowText (page, "(x2, y2)") HPDF_Page_MoveTextPos (page, x3 - x2, y3 - y2) HPDF_Page_ShowText (page, "(x3, y3)") HPDF_Page_EndText (page) HPDF_Page_SetDash (page, DASH_MODE1, 1, 0) HPDF_Page_SetLineWidth (page, 0.5) HPDF_Page_MoveTo (page, x, y) HPDF_Page_LineTo (page, x1, y1) HPDF_Page_Stroke (page) HPDF_Page_MoveTo (page, x2, y2) HPDF_Page_LineTo (page, x3, y3) HPDF_Page_Stroke (page) HPDF_Page_SetDash (page, NULL, 0, 0) HPDF_Page_SetLineWidth (page, 1.5) HPDF_Page_MoveTo (page, x, y) HPDF_Page_CurveTo (page, x1, y1, x2, y2, x3, y3) HPDF_Page_Stroke (page) # save the document to a file HPDF_SaveToFile (pdf, fname) # clean up HPDF_Free (pdf) return 0 main()