284 lines
8.7 KiB
C
284 lines
8.7 KiB
C
#include <X11/copyright.h>
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/* $XConsortium: Graph.c,v 1.2 88/10/25 17:40:25 swick Exp $ */
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/* Copyright Massachusetts Institute of Technology 1987, 1988 */
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#include <X11/IntrinsicP.h>
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#include <X11/StringDefs.h>
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#include "GraphP.h"
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#include <stdio.h>
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/* ---- Forward declarations ---- */
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static void Initialize(Widget request, Widget new,
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ArgList args, Cardinal *num_args);
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static void Destroy(Widget w);
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static void Redisplay(Widget w, XEvent *event, Region region);
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static void Resize(Widget w);
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static void InputAction(Widget w, XEvent *event,
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String *params,Cardinal *num_params);
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static Boolean SetValues(Widget current, Widget request, Widget new,
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ArgList args, Cardinal *num_args);
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/* ---- Private data ---- */
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static XtResource resources[] = {
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#define offset(field) XtOffset(GraphWidget, graph.field)
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#define coffset(field) XtOffset(Widget, core.field)
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/* {name, class, type, size, offset, default_type, default_addr}, */
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{ XtNcallback, XtCCallback, XtRCallback, (Cardinal)sizeof(XtCallbackList),
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offset(input_callback), XtRCallback, NULL },
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{ XtNdimBackground, XtCBackground, XtRPixel, (Cardinal)sizeof(Pixel),
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offset(dimBackground), XtRString, "XtDefaultBackground" },
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{ XtNexposeCallback, XtCCallback, XtRCallback,
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(Cardinal)sizeof(XtCallbackList),
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offset(expose_callback), XtRCallback, NULL },
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{ XtNfont, XtCFont, XtRFontStruct, (Cardinal)sizeof(XFontStruct*),
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offset(font), XtRString, XtDefaultFont },
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{ XtNgraphColour1, XtCForeground, XtRPixel, (Cardinal)sizeof(Pixel),
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offset(graphColour1), XtRString, "XtDefaultForeground" },
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{ XtNgraphColour2, XtCForeground, XtRPixel, (Cardinal)sizeof(Pixel),
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offset(graphColour2), XtRString, "XtDefaultForeground" },
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{ XtNgraphColour3, XtCForeground, XtRPixel, (Cardinal)sizeof(Pixel),
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offset(graphColour3), XtRString, "XtDefaultForeground" },
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{ XtNgraphColour4, XtCForeground, XtRPixel, (Cardinal)sizeof(Pixel),
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offset(graphColour4), XtRString, "XtDefaultForeground" },
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{ XtNheight, XtCHeight, XtRDimension, (Cardinal)sizeof(Dimension),
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coffset(height), XtRImmediate, (caddr_t)1},
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{ XtNwidth, XtCWidth, XtRDimension, (Cardinal)sizeof(Dimension),
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coffset(width), XtRImmediate, (caddr_t)1},
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{ XtNresizeCallback, XtCCallback, XtRCallback,
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(Cardinal)sizeof(XtCallbackList),
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offset(resize_callback), XtRCallback, NULL },
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#undef offset
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#undef coffset
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};
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static XtActionsRec actions[] =
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{
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/* {name, procedure}, */
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{"input", InputAction},
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};
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static char translations[] =
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"<Key>: input() \n\
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<BtnDown>: input() \
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";
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GraphClassRec graphClassRec = {
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{ /* core fields initial values */
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/* superclass */ (WidgetClass) &simpleClassRec,
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/* class_name */ "Graph",
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/* widget_size */ (Cardinal)sizeof(GraphRec),
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/* class_initialize */ NULL,
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/* class_part_initialize */ NULL,
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/* class_inited */ FALSE,
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/* initialize */ Initialize,
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/* initialize_hook */ NULL,
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/* realize */ XtInheritRealize,
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/* actions */ actions,
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/* num_actions */ XtNumber(actions),
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/* resources */ resources,
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/* num_resources */ XtNumber(resources),
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/* xrm_class */ NULLQUARK,
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/* compress_motion */ TRUE,
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/* compress_exposure */ XtExposeCompressMaximal,
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/* compress_enterleave */ TRUE,
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/* visible_interest */ FALSE,
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/* destroy */ Destroy,
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/* resize */ Resize,
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/* expose */ Redisplay,
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/* set_values */ SetValues,
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/* set_values_hook */ NULL,
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/* set_values_almost */ XtInheritSetValuesAlmost,
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/* get_values_hook */ NULL,
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/* accept_focus */ NULL,
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/* version */ XtVersion,
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/* callback_private */ NULL,
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/* tm_table */ translations,
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/* query_geometry */ XtInheritQueryGeometry,
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/* display_accelerator */ XtInheritDisplayAccelerator,
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/* extension */ NULL
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},
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{ /* Simple class initial values */
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/* change_sensitive */ XtInheritChangeSensitive
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},
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{ /* Graph class initial values */
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/* empty */ 0
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}
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};
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WidgetClass graphWidgetClass = (WidgetClass)&graphClassRec;
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/* ---- Private procedures ---- */
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static void Initialize(Widget request, Widget new,
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ArgList args, Cardinal *num_args)
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{ GraphWidget gw = (GraphWidget)new;
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unsigned long xGCMask;
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XGCValues xGCValues;
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Display *display;
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int screen;
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display = XtDisplay(request);
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screen = DefaultScreen(display);
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if (DisplayPlanes(display,screen)==1)
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{ /* We are on a one-plane monochrome display.
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Use dashes to make lines distinguishable.
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*/
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xGCMask = GCForeground | GCBackground | GCLineStyle;
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xGCValues.foreground = BlackPixel(display,screen);
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xGCValues.background = WhitePixel(display,screen);
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xGCValues.line_style = LineSolid;
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gw->graph.graphGC1 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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xGCMask = GCForeground | GCBackground | GCLineStyle | GCDashList;
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xGCValues.foreground = BlackPixel(display,screen);
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xGCValues.background = WhitePixel(display,screen);
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xGCValues.line_style = LineOnOffDash;
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xGCValues.dashes = 1;
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gw->graph.graphGC2 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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xGCMask = GCForeground | GCBackground | GCLineStyle | GCDashList;
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xGCValues.foreground = BlackPixel(display,screen);
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xGCValues.background = WhitePixel(display,screen);
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xGCValues.line_style = LineOnOffDash;
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xGCValues.dashes = 2;
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gw->graph.graphGC3 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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xGCMask = GCForeground | GCBackground | GCLineStyle | GCDashList;
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xGCValues.foreground = BlackPixel(display,screen);
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xGCValues.background = WhitePixel(display,screen);
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xGCValues.line_style = LineOnOffDash;
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xGCValues.dashes = 4;
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gw->graph.graphGC4 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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gw->graph.graphColour1 = BlackPixel(display,screen);
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gw->graph.graphColour2 = BlackPixel(display,screen);
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gw->graph.graphColour3 = BlackPixel(display,screen);
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gw->graph.graphColour4 = BlackPixel(display,screen);
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}
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else
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{ /* Some sort of multi-plane display.
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*/
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xGCMask = GCForeground | GCBackground;
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xGCValues.background = gw->core.background_pixel;
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xGCValues.foreground = gw->graph.graphColour1;
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gw->graph.graphGC1 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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xGCValues.foreground = gw->graph.graphColour2;
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gw->graph.graphGC2 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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xGCValues.foreground = gw->graph.graphColour3;
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gw->graph.graphGC3 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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xGCValues.foreground = gw->graph.graphColour4;
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gw->graph.graphGC4 = XtGetGC((Widget) gw, xGCMask, &xGCValues);
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}
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}
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static void Destroy (Widget w)
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{ GraphWidget gw = (GraphWidget) w;
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XtDestroyGC(gw->graph.graphGC1);
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XtDestroyGC(gw->graph.graphGC2);
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XtDestroyGC(gw->graph.graphGC3);
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XtDestroyGC(gw->graph.graphGC4);
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}
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static void Redisplay(Widget w, XEvent *event, Region region)
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{ XtCallCallbacks(w, XtNexposeCallback, (caddr_t)region);
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}
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static void Resize(Widget w)
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{ XtCallCallbacks(w, XtNresizeCallback, 0);
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}
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static void InputAction(Widget w, XEvent *event,
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String *params,Cardinal *num_params)
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{ XtCallCallbacks(w, XtNcallback, (caddr_t)event);
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}
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static Boolean SetValues(Widget current, Widget request, Widget new,
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ArgList args, Cardinal *num_args)
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{ GraphWidget g_old = (GraphWidget) current;
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GraphWidget g_new = (GraphWidget) new;
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if (DisplayPlanes(XtDisplay(new), DefaultScreen(XtDisplay(new))) == 1 ||
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!XtIsRealized(new))
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{ /* Silly to change, or can't change.
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Don't generate an expose.
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*/
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return(False);
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}
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else
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{ if (g_old->graph.graphColour1 != g_new->graph.graphColour1)
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XSetForeground(XtDisplay(new),
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g_new->graph.graphGC1,
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g_new->graph.graphColour1);
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if (g_old->graph.graphColour2 != g_new->graph.graphColour2)
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XSetForeground(XtDisplay(new),
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g_new->graph.graphGC2,
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g_new->graph.graphColour2);
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if (g_old->graph.graphColour3 != g_new->graph.graphColour3)
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XSetForeground(XtDisplay(new),
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g_new->graph.graphGC3,
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g_new->graph.graphColour3);
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if (g_old->graph.graphColour4 != g_new->graph.graphColour4)
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XSetForeground(XtDisplay(new),
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g_new->graph.graphGC4,
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g_new->graph.graphColour4);
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return(True);
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}
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}
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/* ---- Exported procedures ---- */
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GC GraphGC1(Widget w)
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{ return((GraphWidget)w)->graph.graphGC1;
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}
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GC GraphGC2(Widget w)
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{ return((GraphWidget)w)->graph.graphGC2;
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}
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GC GraphGC3(Widget w)
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{ return((GraphWidget)w)->graph.graphGC3;
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}
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GC GraphGC4(Widget w)
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{ return((GraphWidget)w)->graph.graphGC4;
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}
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