/* Part of XPCE --- The SWI-Prolog GUI toolkit Author: Jan Wielemaker and Anjo Anjewierden E-mail: jan@swi.psy.uva.nl WWW: http://www.swi.psy.uva.nl/projects/xpce/ Copyright (c) 1985-2002, University of Amsterdam All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include static status imageBitmap(BitmapObj bm, Image image); static status transparentBitmap(BitmapObj bm, BoolObj transparent); static status initialiseBitmap(BitmapObj b, Image image, BoolObj transparent) { if ( isDefault(image) ) TRY(image = newObject(ClassImage, NIL, EAV)); if ( isDefault(transparent) ) transparent = OFF; initialiseGraphical(b, ZERO, ZERO, image->size->w, image->size->h); assign(b, pen, ZERO); assign(b, transparent, transparent); assign(b, image, image); if ( image->access == NAME_both && isNil(image->bitmap) ) assign(image, bitmap, b); updateSolidBitmap(b); succeed; } static status unlinkBitmap(BitmapObj bm) { if ( notNil(bm->image) && bm->image->bitmap == bm ) assign(bm->image, bitmap, NIL); return unlinkGraphical((Graphical) bm); } static BitmapObj getConvertBitmap(Class class, Name name) { Image im; if ( (im = getConvertImage(ClassImage, (Any) name)) != FAIL ) answer(answerObject(ClassBitmap, im, EAV)); fail; } static status RedrawAreaBitmap(BitmapObj b, Area a) { int x, y, w, h; initialiseDeviceGraphical(b, &x, &y, &w, &h); if ( notNil(b->image) ) r_image(b->image, 0, 0, x, y, w, h, b->transparent); if ( b->pen != ZERO ) { r_thickness(valInt(b->pen)); r_dash(b->texture); r_box(x, y, w, h, 0, NIL); } return RedrawAreaGraphical(b, a); } static status geometryBitmap(BitmapObj b, Int x, Int y, Int w, Int h) { return geometryGraphical(b, x, y, DEFAULT, DEFAULT); } static BitmapObj getCopyBitmap(BitmapObj bm) { BitmapObj copy = answerObject(ClassBitmap, EAV); copyGraphical(copy, bm); imageBitmap(copy, bm->image); answer(copy); } static status imageBitmap(BitmapObj bm, Image image) { if ( bm->image != image ) { if ( (notNil(bm->image) && notNil(bm->image->mask)) || notNil(image->mask) ) clearFlag(bm, F_SOLID); CHANGING_GRAPHICAL(bm, addRefObj(bm); /* avoid drop-out */ assign(bm, image, image); sizeArea(bm->area, image->size); if ( image->access == NAME_both && isNil(image->bitmap) ) assign(image, bitmap, bm); delRefObj(bm); changedEntireImageGraphical(bm)); updateSolidBitmap(bm); } succeed; } status updateSolidBitmap(BitmapObj bm) { if ( notNil(bm->image->mask) || bm->transparent == ON ) clearFlag(bm, F_SOLID); else setFlag(bm, F_SOLID); succeed; } static status transparentBitmap(BitmapObj bm, BoolObj transparent) { CHANGING_GRAPHICAL(bm, assign(bm, transparent, transparent); if ( transparent == OFF ) setFlag(bm, F_SOLID); else clearFlag(bm, F_SOLID); changedEntireImageGraphical(bm)); succeed; } static status redrawBitmap(BitmapObj bm, Area a) { CHANGING_GRAPHICAL(bm, sizeArea(bm->area, bm->image->size)); return redrawGraphical((Graphical) bm, DEFAULT); } static status loadBitmap(BitmapObj bm, FileObj file, CharArray path) { Image image; if ( isDefault(path) ) TRY( path = getClassVariableValueClass(ClassImage, NAME_path)); TRY(findFile(file, path, NAME_read)); TRY(image = newObject(ClassImage, file->name, EAV)); return imageBitmap(bm, image); } /******************************** * BACKWARD COMPATIBILITY * ********************************/ static status storeBitmap(BitmapObj bm, FileObj file) { return storeSlotsObject(bm, file); } static status loadFdBitmap(BitmapObj bm, IOSTREAM *fd, ClassDef def) { TRY(loadSlotsObject(bm, fd, def)); if ( restoreVersion < 7 ) { if ( restoreVersion == 1 ) { Image image = newObject(ClassImage, EAV); ws_load_old_image(image, fd); assign(bm, image, image); } else if ( restoreVersion <= 5 ) { assign(bm, image, newObject(ClassImage, EAV)); assign(bm, pen, ZERO); assign(bm, request_compute, NIL); switch( Sgetc(fd) ) { case 'O': /* no image */ setSize(bm->image->size, ZERO, ZERO); break; case 'X': loadXImage(bm->image, fd); } } if ( isNil(bm->texture) ) assign(bm, texture, NAME_none); if ( isNil(bm->colour) ) assign(bm, colour, DEFAULT); if ( isNil(bm->inverted) ) assign(bm, inverted, OFF); if ( isNil(bm->transparent) ) assign(bm, transparent, OFF); } updateSolidBitmap(bm); succeed; } static Chain getContainsBitmap(BitmapObj bm) { answer(answerObject(ClassChain, bm->image, EAV)); } /******************************* * CLASS DECLARATION * *******************************/ /* Type declarations */ static char *T_load[] = { "file", "path=[char_array]" }; static char *T_initialise[] = { "image=[image]", "transparent=[bool]" }; static char *T_geometry[] = { "x=[int]", "y=[int]", "width=[int]", "height=[int]" }; /* Instance Variables */ static vardecl var_bitmap[] = { SV(NAME_image, "image", IV_GET|IV_STORE, imageBitmap, NAME_appearance, "The pixel collection managed"), SV(NAME_transparent, "bool", IV_GET|IV_STORE, transparentBitmap, NAME_appearance, "When @on, 0-pixels are not painted") }; /* Send Methods */ static senddecl send_bitmap[] = { SM(NAME_geometry, 4, T_geometry, geometryBitmap, DEFAULT, "Bitmaps can only be moved"), SM(NAME_initialise, 2, T_initialise, initialiseBitmap, DEFAULT, "Create from image"), SM(NAME_unlink, 0, NULL, unlinkBitmap, DEFAULT, "Unlink from <-image"), SM(NAME_redraw, 1, "[area]", redrawBitmap, NAME_change, "Update size and repaint indicated area"), SM(NAME_load, 2, T_load, loadBitmap, NAME_file, "Load file (in path) into bitmap"), SM(NAME_DrawPostScript, 1, "{head,body}", drawPostScriptBitmap, NAME_postscript, "Create PostScript") }; /* Get Methods */ static getdecl get_bitmap[] = { GM(NAME_contains, 0, "chain", NULL, getContainsBitmap, DEFAULT, "New chain with <-image"), GM(NAME_convert, 1, "bitmap", "name", getConvertBitmap, DEFAULT, "Convert image-names"), GM(NAME_copy, 0, "bitmap", NULL, getCopyBitmap, NAME_copy, "Make a copy that shares the image") }; /* Resources */ #define rc_bitmap NULL /* static classvardecl rc_bitmap[] = { }; */ /* Class Declaration */ static Name bitmap_termnames[] = { NAME_image }; ClassDecl(bitmap_decls, var_bitmap, send_bitmap, get_bitmap, rc_bitmap, 1, bitmap_termnames, "$Rev$"); status makeClassBitmap(Class class) { declareClass(class, &bitmap_decls); solidClass(class, ON); setRedrawFunctionClass(class, RedrawAreaBitmap); setLoadStoreFunctionClass(class, loadFdBitmap, storeBitmap); cloneStyleVariableClass(class, NAME_image, NAME_reference); delegateClass(class, NAME_image); succeed; }