/* 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 initialiseView(View v, Name name, Size size, DisplayObj display, Editor editor) { Editor e; if ( isDefault(editor) ) { Size s2; if ( isDefault(size) && (s2 = getClassVariableValueObject(v, NAME_size)) ) size = newObject(ClassSize, s2->w, s2->h, EAV); TRY(e = get(v, NAME_createEditor, size, EAV)); } else e = editor; initialiseWindow((PceWindow) v, name, getSizeGraphical((Graphical) e), display); return send(v, NAME_editor, e, EAV); } static status unlinkView(View v) { Editor e = v->editor; unlinkWindow((PceWindow) v); assign(v, editor, NIL); freeObject(e); succeed; } static status editorView(View v, Editor editor) { if ( notNil(v->editor) ) { assign(v, editor, NIL); send(v->editor, NAME_destroy, EAV); } assign(v, editor, editor); send(editor, NAME_set, ZERO, ZERO, EAV); send(v, NAME_display, editor, EAV); send(v, NAME_resizeMessage, newObject(ClassMessage, editor, NAME_Size, Arg(2), EAV), EAV); assign(v, keyboard_focus, editor); succeed; } static Editor getCreateEditorView(View v, Size size) { Editor e; Int w, h; if ( notDefault(size) ) { w = size->w; h = size->h; } else w = h = DEFAULT; if ( (e = newObject(ClassEditor, DEFAULT, w, h, EAV)) ) { FontObj f; if ( (f = getClassVariableValueObject(v, NAME_font)) ) send(e, NAME_font, f, EAV); answer(e); } fail; } static Point getSelectionView(View v) { answer(getSelectionEditor(v->editor)); } static status requestGeometryView(View v, Int x, Int y, Int w, Int h) { Editor e = v->editor; if ( notDefault(w) ) w = mul(w, getExFont(e->font)); if ( notDefault(h) ) h = mul(h, getHeightFont(e->font)); return requestGeometryWindow((PceWindow) v, x, y, w, h); } /******************************** * OVERRULE * ********************************/ static status clearView(View v) { return clearEditor(v->editor); } static status selectionView(View v, Int from, Int to, Name status) { return selectionEditor(v->editor, from, to, status); } static StringObj getSelectedView(View v) { return getSelectedEditor(v->editor); } static status normaliseView(View v, Int from, Int to) { return normaliseEditor(v->editor, from, to); } static status scrollToView(View v, Int index, Int screenline) { return scrollToEditor(v->editor, index, screenline); } static status scrollVerticalView(View v, Name dir, Name unit, Int amount) { return scrollVerticalEditor(v->editor, dir, unit, amount); } static status formatView(View v, CharArray fmt, int argc, Any *argv) { return formatEditor(v->editor, fmt, argc, argv); } static status backgroundView(View v, Any bg) { return backgroundEditor(v->editor, bg); } static status colourView(View v, Any c) { return colourEditor(v->editor, c); } /******************************* * CLASS DECLARATION * *******************************/ /* Type declarations */ static char *T_format[] = { "char_array", "any ..." }; static char *T_fromAint_toAint[] = { "from=int", "to=int" }; static char *T_initialise[] = { "label=[name]", "size=[size]", "display=[display]", "editor=[editor]" }; static char *T_requestGeometry[] = { "x=[int]", "y=[int]", "width=[int]", "height=[int]" }; static char *T_selection[] = { "mark=[int]", "caret=[int]", "status=[{active,inactive,highlight}]" }; static char *T_scrollTo[] = { "index=[int]", "screenline=[int]" }; static char *T_scrollVertical[] = { "direction={forwards,backwards,goto}", "unit={file,page,line}", "amount=int" }; /* Instance Variables */ static vardecl var_view[] = { IV(NAME_editor, "editor", IV_GET, NAME_delegate, "Editor displayed") }; /* Send Methods */ static senddecl send_view[] = { SM(NAME_editor, 1, "editor", editorView, DEFAULT, "Associate editor with view"), SM(NAME_initialise, 4, T_initialise, initialiseView, DEFAULT, "Create from label, size, display and editor"), SM(NAME_requestGeometry, 4, T_requestGeometry, requestGeometryView, DEFAULT, "Map size to character units"), SM(NAME_unlink, 0, NULL, unlinkView, DEFAULT, "Unlink the editor"), SM(NAME_clear, 0, NULL, clearView, NAME_delete, "Overrule window behaviour"), SM(NAME_format, 2, T_format, formatView, NAME_format, "Formatted insert (see `string->format')"), SM(NAME_normalise, 2, T_fromAint_toAint, normaliseView, NAME_scroll, "Overrule window behaviour"), SM(NAME_scrollTo, 2, T_scrollTo, scrollToView, NAME_scroll, "Overrule window behaviour"), SM(NAME_scrollVertical, 3, T_scrollVertical, scrollVerticalView, NAME_scroll, "Trap scroll_bar request"), SM(NAME_selection, 3, T_selection, selectionView, NAME_selection, "Overrule window behaviour"), SM(NAME_background, 1, "colour|pixmap", backgroundView, NAME_appearance, "Backround for the window"), SM(NAME_colour, 1, "colour|pixmap", colourView, NAME_appearance, "Foreground colour for the text") }; /* Get Methods */ static getdecl get_view[] = { GM(NAME_createEditor, 1, "editor", "size=[size]", getCreateEditorView, NAME_create, "Create the editor of the view"), GM(NAME_selected, 0, "string", NULL, getSelectedView, NAME_selection, "New string with contents of selection"), GM(NAME_selection, 0, "point", NULL, getSelectionView, NAME_selection, "New point with start and end of selection") }; /* Resources */ static classvardecl rc_view[] = { RC(NAME_pen, "int", "0", "Pen (done by <-editor)"), RC(NAME_size, "size", "size(80,20)", "Default size in `characters x lines'"), RC(NAME_background, RC_REFINE, "@_dialog_bg", NULL) }; /* Class Declaration */ static Name view_termnames[] = { NAME_name }; ClassDecl(view_decls, var_view, send_view, get_view, rc_view, 1, view_termnames, "$Rev$"); status makeClassView(Class class) { declareClass(class, &view_decls); prependDelegateClass(class, NAME_editor); succeed; }