/* * $Xorg: print.c,v 1.1 2004/04/30 02:05:54 gisburn Exp $ * Copyright 2004 Roland Mainz 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. 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 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 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. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. * */ /* Turn a NULL pointer string into an empty string */ #define NULLSTR(x) (((x)!=NULL)?(x):("")) #define Error(x) { printf x ; exit(EXIT_FAILURE); } #define Assertion(expr, msg) { if (!(expr)) { Error msg } } #define Log(x) { if(True) printf x; } #include "print.h" #include #include #include #include #include static Widget CreatePrintShell(Widget videoshell, Screen *pscreen, Visual *pvisual, String printshell_name, ArgList args, Cardinal numargs) { String videoname, videoclass; Widget pappshell, printshell; Display *pdpy = XDisplayOfScreen(pscreen); int dummyc = 0; String dummys = ""; Cardinal shell_n; Arg shell_args[5]; XtGetApplicationNameAndClass(XtDisplay(videoshell), &videoname, &videoclass); /* XXX: Why is the |dummyc|&&|dummys| stuff needed here ? */ XtDisplayInitialize(XtWidgetToApplicationContext(videoshell), pdpy, videoname, videoclass, NULL, 0, &dummyc, &dummys); shell_n = 0; XtSetArg(shell_args[shell_n], XtNscreen, pscreen); shell_n++; if (pvisual) { XtSetArg(shell_args[shell_n], XtNvisual, pvisual); shell_n++; } pappshell = XtAppCreateShell(videoname, videoclass, applicationShellWidgetClass, pdpy, shell_args, shell_n); printshell = XtCreatePopupShell(printshell_name, xawPrintShellWidgetClass, pappshell, args, numargs); /* we're mapping/unmapping at start/end page time */ XtSetMappedWhenManaged(printshell, False); /* We realise the widget when we're done with building the widget tree... */ return printshell; } typedef struct { const char *programname; Widget toplevel; Bool isPrinting; Widget printshell; struct { Widget form; Widget pageheaderlabel; Widget text; } content; /* content to print */ int numpages; Display *pdpy; Screen *pscreen; XPContext pcontext; XtCallbackProc pdpyDestroyCallback; void *printtofile_handle; const char *jobtitle; } AppPrintData; static AppPrintData apdx; static AppPrintData *apd = &apdx; /* Count pages in a text widget * WARNING: This will reset the current position of the text widget * back to the beginning */ static long CountPages(Widget textWidget) { long numpages = 0; XawTextPosition prevpagepos = -1, currpos = 0; /* Move to the top of the file... */ XtCallActionProc(textWidget, "beginning-of-file", NULL, NULL, 0); /* ... count pages ...*/ do { prevpagepos = XawTextTopPosition(textWidget); XtCallActionProc(textWidget, "next-page", NULL, NULL, 0); currpos = XawTextTopPosition(textWidget); numpages++; } while(prevpagepos != currpos); /* ... and move to the top of the file... */ XtCallActionProc(textWidget, "beginning-of-file", NULL, NULL, 0); Log(("CountPages() found %ld pages.\n", numpages)) return numpages; } static void PageSetupCB(Widget widget, XtPointer client_data, XtPointer call_data) { Widget pshell = widget; XawPrintShellCallbackStruct *psp = (XawPrintShellCallbackStruct *)call_data; AppPrintData *p = (AppPrintData *)client_data; Log(("--> PageSetupCB\n")); if (!psp->last_page_in_job) { int currpage; char buffer[256]; XtVaGetValues(pshell, XawNcurrPageNumInJob, &currpage, NULL); sprintf(buffer, "Title: %s / Page: %d/%d", p->jobtitle, currpage, p->numpages); XtVaSetValues(apd->content.pageheaderlabel, XtNlabel, buffer, NULL); /* Note: XawPrintShell's pagecount starts with '1' * (=first page is page no. '1') */ if (currpage > 1) { Log(("pagedown %d\n", currpage)); XtCallActionProc(p->content.text, "next-page", NULL, NULL, 0); } else { Log(("first page\n")); } if (currpage >= p->numpages) { psp->last_page_in_job = True; } } } static void FinishPrinting(AppPrintData *p) { if (p->printtofile_handle) { if (XpuWaitForPrintFileChild(p->printtofile_handle) != XPGetDocFinished) { fprintf(stderr, "%s: Error while printing to file.\n", apd->programname); } p->printtofile_handle = NULL; } if (p->printshell) { XtDestroyWidget(p->printshell); p->printshell = NULL; } /* Two issues here: * 1. The print display connection is owned by the print dialog * To avoid any problems with that use a callback back to the main * application which calls * |XawPrintDialogClosePrinterConnection(w, False)| to ask the * print dialog widget to close all print display resources and * disown the object. * 2. We have to use XpDestroyContext() and XtCloseDisplay() * instead of XpuClosePrinterDisplay() to make libXt happy... * * Call callback... */ (*apd->pdpyDestroyCallback)(NULL, NULL, NULL); /* HACK! */ /* ... and then get rid of the display */ if (p->pcontext != None) { XpDestroyContext(p->pdpy, p->pcontext); } XtCloseDisplay(p->pdpy); p->toplevel = NULL; p->isPrinting = False; p->pdpy = NULL; p->pscreen = NULL; p->pcontext = None; } static void PrintEndJobCB(Widget pshell, XtPointer client_data, XtPointer call_data) { AppPrintData *p = (AppPrintData *)client_data; Log(("--> PrintEndJobCB\n")); /* Finish printing and destroy print shell (it's legal to destroy Xt * widgets from within it's own callbacks) */ FinishPrinting(p); } static XFontSet GetPrintTextFontSet(const char *appname, Display *pdpy, long dpi_x, long dpi_y) { XFontSet fontset; char fontname[1024]; char **missing_charset_list_return; int missing_charset_count_return; char *def_string_return; int i; sprintf(fontname, /* Default font for CDE */ "-dt-interface user-medium-r-normal-s*-*-120-%ld-%ld-*-*," /* Default font */ "-adobe-courier-medium-r-normal--*-120-%ld-%ld-*-*," /* Default font for Linux/Japanese locales (ja_JP.SJIS) */ "-watanabe-mincho-medium-r-normal--*-120-%ld-%ld-*-*," "-wadalab-gothic-medium-r-normal--*-120-%ld-%ld-*-*," /* Fallback */ "-*-*-*-*-*--*-120-%ld-%ld-*-*", dpi_x, dpi_y, dpi_x, dpi_y, dpi_x, dpi_y, dpi_x, dpi_y, dpi_x, dpi_y); fontset = XCreateFontSet(pdpy, fontname, &missing_charset_list_return, &missing_charset_count_return, &def_string_return); for( i=0 ; i < missing_charset_count_return ; i++ ) { fprintf(stderr, "%s: warning: font for charset %s is lacking.\n", appname, missing_charset_list_return[i]); } if (!fontset) Error(("GetPrintTextFontSet: XCreateFontSet() failure.\n")); return fontset; } void DoPrintTextSource(const char *programname, Widget textsource, Widget toplevel, Display *pdpy, XPContext pcontext, XpuColorspaceRec *colorspace, XtCallbackProc pdpyDestroyCB, const char *jobtitle, const char *toFile) { long dpi_x = 0L, dpi_y = 0L; int n; Arg args[20]; XFontSet textfontset = NULL; XFontSetExtents *font_extents; apd->programname = programname; apd->pdpyDestroyCallback = pdpyDestroyCB; if (apd->isPrinting) { fprintf(stderr, "%s: Already busy with printing.\n", apd->programname); return; } /* Configure the print context (paper size, title etc.) * We must do this before creating any Xt widgets - otherwise they will * make wrong assuptions about fonts, resultions etc. ... */ XpuSetJobTitle(pdpy, pcontext, jobtitle); /* Configuration done, set the context */ XpSetContext(pdpy, pcontext); /* Get default printer resolution */ if (XpuGetResolution(pdpy, pcontext, &dpi_x, &dpi_y) != 1) { fprintf(stderr, "%s: No default resolution for printer.\n", apd->programname); XpuClosePrinterDisplay(pdpy, pcontext); return; } apd->toplevel = toplevel; apd->pdpy = pdpy; apd->pcontext = pcontext; apd->pscreen = XpGetScreenOfContext(pdpy, pcontext); apd->jobtitle = jobtitle; n = 0; /* Override any geometry resource settings as XawPrintShell adjusts it's size * to the current page siue when |XawPrintLAYOUTMODE_DRAWABLEAREA| or * |XawPrintLAYOUTMODE_PAGESIZE| are used. */ XtSetArg(args[n], XtNgeometry, "+0+0"); n++; XtSetArg(args[n], XawNlayoutMode, XawPrintLAYOUTMODE_DRAWABLEAREA); n++; if (colorspace) { printf("Setting visual to id=0x%lx.\n", colorspace->visualinfo.visualid); } apd->printshell = CreatePrintShell(toplevel, apd->pscreen, (colorspace?(colorspace->visualinfo.visual):(NULL)), "printshell", args, n); n = 0; XtSetArg(args[n], XtNresizable, True); n++; XtSetArg(args[n], XtNright, XtChainRight); n++; apd->content.form = XtCreateManagedWidget("form", formWidgetClass, apd->printshell, args, n); textfontset = GetPrintTextFontSet(apd->programname, pdpy, dpi_x, dpi_y); n = 0; XtSetArg(args[n], XtNinternational, True); n++; XtSetArg(args[n], XtNfromHoriz, NULL); n++; XtSetArg(args[n], XtNfromVert, NULL); n++; XtSetArg(args[n], XtNtop, XtChainTop); n++; XtSetArg(args[n], XtNright, XtChainRight); n++; XtSetArg(args[n], XtNresizable, True); n++; XtSetArg(args[n], XtNfontSet, textfontset); n++; XtSetArg(args[n], XtNlabel, "Page: n/n"); n++; XtSetArg(args[n], XtNjustify, XtJustifyRight); n++; apd->content.pageheaderlabel = XtCreateManagedWidget("pageinfo", labelWidgetClass, apd->content.form, args, n); font_extents = XExtentsOfFontSet(textfontset); n = 0; XtSetArg(args[n], XtNinternational, True); n++; XtSetArg(args[n], XtNtextSource, textsource); n++; XtSetArg(args[n], XtNscrollHorizontal, XawtextScrollNever); n++; XtSetArg(args[n], XtNscrollVertical, XawtextScrollNever); n++; /* Usually I would expect that using |XtNfromVert, apd->content.pageheaderlabel| * would be the correct way to place the text widget with the main content below * the page header widget - but for an unknown reason this doesn not work: The * text widget squishes itself into the bottom half of the page and only occupies * 1/2 of the page's with... ;-(( */ #define WORKAROUND_FOR_SOMETHING_IS_WRONG 1 #ifdef WORKAROUND_FOR_SOMETHING_IS_WRONG XtSetArg(args[n], XtNtop, XtChainTop); n++; XtSetArg(args[n], XtNright, XtChainRight); n++; XtSetArg(args[n], XtNvertDistance, (font_extents->max_logical_extent.height+2)*2); n++; #else XtSetArg(args[n], XtNfromHoriz, NULL); n++; XtSetArg(args[n], XtNfromVert, apd->content.pageheaderlabel); n++; #endif XtSetArg(args[n], XtNfontSet, textfontset); n++; apd->content.text = XtCreateManagedWidget("text", asciiTextWidgetClass, apd->content.form, args, n); /* Disable the caret - that is not needed for printing */ XawTextDisplayCaret(apd->content.text, False); XtAddCallback(apd->printshell, XawNpageSetupCallback, PageSetupCB, (XtPointer)apd); XtAddCallback(apd->printshell, XawNendJobCallback, PrintEndJobCB, (XtPointer)apd); /* Realise print shell (which will set position+size of the child * widgets based on the current page size) */ XtRealizeWidget(apd->printshell); /* Count number of pages in the text widget */ apd->numpages = CountPages(apd->content.text); /* Make sure that the Xt machinery is really using the right screen (assertion) */ if (XpGetScreenOfContext(XtDisplay(apd->printshell), apd->pcontext) != XtScreen(apd->printshell)) Error(("Widget's screen != print screen. BAD.\n")); apd->isPrinting = True; if (toFile) { printf("%s: Printing to file '%s'...\n", apd->programname, toFile); apd->printtofile_handle = XpuStartJobToFile(pdpy, pcontext, toFile); if (!apd->printtofile_handle) { perror("XpuStartJobToFile failure"); apd->isPrinting = False; return; } } else { printf("%s: Printing to printer...\n", apd->programname); XpuStartJobToSpooler(pdpy); } }