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/*
* Smithsonian Astrophysical Observatory, Cambridge, MA, USA
* This code has been modified under the terms listed below and is made
* available under the same terms.
*/
/*
* Copyright 1991-2004 George A Howlett.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*/
#include <string.h>
#include "bltGraph.h"
#include "bltGraphLine.h"
#include "bltGraphBar.h"
#include "bltGraphOp.h"
#include "bltGrAxis.h"
#include "bltGrAxisOp.h"
#include "bltGrElem.h"
#include "bltGrElemOp.h"
#include "bltGrHairs.h"
#include "bltGrHairsOp.h"
#include "bltGrLegd.h"
#include "bltGrLegdOp.h"
#include "bltGrMarker.h"
#include "bltGrMarkerOp.h"
#include "bltGrPageSetup.h"
#include "bltGrPageSetupOp.h"
#include "bltGrPen.h"
#include "bltGrPenOp.h"
#include "bltGrXAxisOp.h"
using namespace Blt;
static Tcl_ObjCmdProc BarchartObjCmd;
static Tcl_ObjCmdProc GraphObjCmd;
static Axis* GetFirstAxis(Blt_Chain chain);
#define PointInRegion(e,x,y) \
(((x) <= (e)->right) && ((x) >= (e)->left) && \
((y) <= (e)->bottom) && ((y) >= (e)->top))
int GraphObjConfigure(Graph* graphPtr, Tcl_Interp* interp,
int objc, Tcl_Obj* const objv[])
{
Tk_SavedOptions savedOptions;
int mask =0;
int error;
Tcl_Obj* errorResult;
for (error=0; error<=1; error++) {
if (!error) {
if (Tk_SetOptions(interp, (char*)graphPtr->ops_, graphPtr->optionTable_,
objc, objv, graphPtr->tkwin_, &savedOptions, &mask)
!= TCL_OK)
continue;
}
else {
errorResult = Tcl_GetObjResult(interp);
Tcl_IncrRefCount(errorResult);
Tk_RestoreSavedOptions(&savedOptions);
}
if (graphPtr->configure() != TCL_OK)
return TCL_ERROR;
graphPtr->flags |= mask;
graphPtr->eventuallyRedraw();
break;
}
if (!error) {
Tk_FreeSavedOptions(&savedOptions);
return TCL_OK;
}
else {
Tcl_SetObjResult(interp, errorResult);
Tcl_DecrRefCount(errorResult);
return TCL_ERROR;
}
}
static int CgetOp(ClientData clientData, Tcl_Interp* interp,
int objc, Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
if (objc != 3) {
Tcl_WrongNumArgs(interp, 1, objv, "cget option");
return TCL_ERROR;
}
Tcl_Obj* objPtr = Tk_GetOptionValue(interp,
(char*)graphPtr->ops_,
graphPtr->optionTable_,
objv[2], graphPtr->tkwin_);
if (objPtr == NULL)
return TCL_ERROR;
else
Tcl_SetObjResult(interp, objPtr);
return TCL_OK;
}
static int ConfigureOp(ClientData clientData, Tcl_Interp* interp,
int objc, Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
if (objc <= 3) {
Tcl_Obj* objPtr = Tk_GetOptionInfo(interp, (char*)graphPtr->ops_,
graphPtr->optionTable_,
(objc == 3) ? objv[2] : NULL,
graphPtr->tkwin_);
if (objPtr == NULL)
return TCL_ERROR;
else
Tcl_SetObjResult(interp, objPtr);
return TCL_OK;
}
else
return GraphObjConfigure(graphPtr, interp, objc-2, objv+2);
}
/*
*---------------------------------------------------------------------------
*
* ExtentsOp --
*
* Reports the size of one of several items within the graph. The
* following are valid items:
*
* "bottommargin" Height of the bottom margin
* "leftmargin" Width of the left margin
* "legend" x y w h of the legend
* "plotarea" x y w h of the plotarea
* "plotheight" Height of the plot area
* "rightmargin" Width of the right margin
* "topmargin" Height of the top margin
* "plotwidth" Width of the plot area
*
* Results:
* Always returns TCL_OK.
*
*---------------------------------------------------------------------------
*/
static int ExtentsOp(ClientData clientData, Tcl_Interp* interp,
int objc, Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
GraphOptions* ops = (GraphOptions*)graphPtr->ops_;
int length;
const char* string = Tcl_GetStringFromObj(objv[2], &length);
char c = string[0];
if ((c == 'p') && (length > 4) &&
(strncmp("plotheight", string, length) == 0)) {
int height = graphPtr->bottom_ - graphPtr->top_ + 1;
Tcl_SetIntObj(Tcl_GetObjResult(interp), height);
}
else if ((c == 'p') && (length > 4) &&
(strncmp("plotwidth", string, length) == 0)) {
int width = graphPtr->right_ - graphPtr->left_ + 1;
Tcl_SetIntObj(Tcl_GetObjResult(interp), width);
}
else if ((c == 'p') && (length > 4) &&
(strncmp("plotarea", string, length) == 0)) {
Tcl_Obj* listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewIntObj(graphPtr->left_));
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewIntObj(graphPtr->top_));
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewIntObj(graphPtr->right_ - graphPtr->left_+1));
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewIntObj(graphPtr->bottom_ - graphPtr->top_+1));
Tcl_SetObjResult(interp, listObjPtr);
}
else if ((c == 'l') && (length > 2) &&
(strncmp("legend", string, length) == 0)) {
Tcl_Obj* listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewIntObj(graphPtr->legend_->x()));
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewIntObj(graphPtr->legend_->y()));
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewIntObj(graphPtr->legend_->width()));
Tcl_ListObjAppendElement(interp, listObjPtr,
Tcl_NewIntObj(graphPtr->legend_->height()));
Tcl_SetObjResult(interp, listObjPtr);
}
else if ((c == 'l') && (length > 2) &&
(strncmp("leftmargin", string, length) == 0)) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), ops->leftMargin.width);
}
else if ((c == 'r') && (length > 1) &&
(strncmp("rightmargin", string, length) == 0)) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), ops->rightMargin.width);
}
else if ((c == 't') && (length > 1) &&
(strncmp("topmargin", string, length) == 0)) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), ops->topMargin.height);
}
else if ((c == 'b') && (length > 1) &&
(strncmp("bottommargin", string, length) == 0)) {
Tcl_SetIntObj(Tcl_GetObjResult(interp), ops->bottomMargin.height);
}
else {
Tcl_AppendResult(interp, "bad extent item \"", objv[2],
"\": should be plotheight, plotwidth, leftmargin, rightmargin, \
topmargin, bottommargin, plotarea, or legend", (char*)NULL);
return TCL_ERROR;
}
return TCL_OK;
}
static int InsideOp(ClientData clientData, Tcl_Interp* interp, int objc,
Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
int x;
if (Tcl_GetIntFromObj(interp, objv[2], &x) != TCL_OK)
return TCL_ERROR;
int y;
if (Tcl_GetIntFromObj(interp, objv[3], &y) != TCL_OK)
return TCL_ERROR;
Region2d exts;
graphPtr->extents(&exts);
int result = PointInRegion(&exts, x, y);
Tcl_SetBooleanObj(Tcl_GetObjResult(interp), result);
return TCL_OK;
}
static int InvtransformOp(ClientData clientData, Tcl_Interp* interp, int objc,
Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
double x, y;
if ((Tcl_GetDoubleFromObj(interp, objv[2], &x) != TCL_OK) ||
(Tcl_GetDoubleFromObj(interp, objv[3], &y) != TCL_OK))
return TCL_ERROR;
if (graphPtr->flags & RESET)
graphPtr->resetAxes();
// Perform the reverse transformation, converting from window coordinates
// to graph data coordinates. Note that the point is always mapped to the
// bottom and left axes (which may not be what the user wants)
Axis* xAxis = GetFirstAxis(graphPtr->axisChain_[0]);
Axis* yAxis = GetFirstAxis(graphPtr->axisChain_[1]);
Point2d point = graphPtr->invMap2D(x, y, xAxis, yAxis);
Tcl_Obj* listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewDoubleObj(point.x));
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewDoubleObj(point.y));
Tcl_SetObjResult(interp, listObjPtr);
return TCL_OK;
}
static int TransformOp(ClientData clientData, Tcl_Interp* interp, int objc,
Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
double x, y;
if ((Tcl_GetDoubleFromObj(interp, objv[2], &x) != TCL_OK) ||
(Tcl_GetDoubleFromObj(interp, objv[3], &y) != TCL_OK))
return TCL_ERROR;
if (graphPtr->flags & RESET)
graphPtr->resetAxes();
// Perform the transformation from window to graph coordinates. Note that
// the points are always mapped onto the bottom and left axes (which may
// not be the what the user wants
Axis* xAxis = GetFirstAxis(graphPtr->axisChain_[0]);
Axis* yAxis = GetFirstAxis(graphPtr->axisChain_[1]);
Point2d point = graphPtr->map2D(x, y, xAxis, yAxis);
Tcl_Obj* listObjPtr = Tcl_NewListObj(0, (Tcl_Obj **)NULL);
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewIntObj(point.x));
Tcl_ListObjAppendElement(interp, listObjPtr, Tcl_NewIntObj(point.y));
Tcl_SetObjResult(interp, listObjPtr);
return TCL_OK;
}
static const Ensemble graphEnsemble[] = {
{"axis", 0, axisEnsemble},
{"bar", 0, elementEnsemble},
{"cget", CgetOp, 0},
{"configure", ConfigureOp, 0},
{"crosshairs", 0, crosshairsEnsemble},
{"element", 0, elementEnsemble},
{"extents", ExtentsOp, 0},
{"inside", InsideOp, 0},
{"invtransform",InvtransformOp, 0},
{"legend", 0, legendEnsemble},
{"line", 0, elementEnsemble},
{"marker", 0, markerEnsemble},
{"pen", 0, penEnsemble},
{"postscript", 0, pageSetupEnsemble},
{"transform", TransformOp, 0},
{"xaxis", 0, xaxisEnsemble},
{"yaxis", 0, xaxisEnsemble},
{"x2axis", 0, xaxisEnsemble},
{"y2axis", 0, xaxisEnsemble},
{ 0,0,0 }
};
// Support
static Axis* GetFirstAxis(Blt_Chain chain)
{
Blt_ChainLink link = Blt_Chain_FirstLink(chain);
if (!link)
return NULL;
return (Axis*)Blt_Chain_GetValue(link);
}
// Tk Interface
int Blt_GraphCmdInitProc(Tcl_Interp* interp)
{
Tcl_Namespace* nsPtr = Tcl_FindNamespace(interp, "::blt", NULL,
TCL_LEAVE_ERR_MSG);
if (nsPtr == NULL)
return TCL_ERROR;
{
const char* cmdPath = "::blt::graph";
Tcl_Command cmdToken = Tcl_FindCommand(interp, cmdPath, NULL, 0);
if (cmdToken)
return TCL_OK;
cmdToken = Tcl_CreateObjCommand(interp, cmdPath, GraphObjCmd, NULL, NULL);
if (Tcl_Export(interp, nsPtr, "graph", 0) != TCL_OK)
return TCL_ERROR;
}
{
const char* cmdPath = "::blt::barchart";
Tcl_Command cmdToken = Tcl_FindCommand(interp, cmdPath, NULL, 0);
if (cmdToken)
return TCL_OK;
cmdToken = Tcl_CreateObjCommand(interp, cmdPath, BarchartObjCmd, NULL,NULL);
if (Tcl_Export(interp, nsPtr, "barchart", 0) != TCL_OK)
return TCL_ERROR;
}
return TCL_OK;
}
static int GraphObjCmd(ClientData clientData, Tcl_Interp* interp, int objc,
Tcl_Obj* const objv[])
{
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "pathName ?options?");
return TCL_ERROR;
}
Graph* graphPtr = new LineGraph(clientData, interp, objc, objv);
return graphPtr->valid_ ? TCL_OK : TCL_ERROR;
}
static int BarchartObjCmd(ClientData clientData, Tcl_Interp* interp, int objc,
Tcl_Obj* const objv[])
{
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "pathName ?options?");
return TCL_ERROR;
}
Graph* graphPtr = new BarGraph(clientData, interp, objc, objv);
return graphPtr->valid_ ? TCL_OK : TCL_ERROR;
}
int GraphInstCmdProc(ClientData clientData, Tcl_Interp* interp,
int objc, Tcl_Obj* const objv[])
{
Graph* graphPtr = (Graph*)clientData;
Tcl_Preserve(graphPtr);
int result = graphPtr->invoke(graphEnsemble, 1, objc, objv);
Tcl_Release(graphPtr);
return result;
}
// called by Tcl_DeleteCommand
void GraphInstCmdDeleteProc(ClientData clientData)
{
Graph* graphPtr = (Graph*)clientData;
if (!(graphPtr->flags & GRAPH_DELETED))
Tk_DestroyWindow(graphPtr->tkwin_);
}
void GraphEventProc(ClientData clientData, XEvent* eventPtr)
{
Graph* graphPtr = (Graph*)clientData;
if (eventPtr->type == Expose) {
if (eventPtr->xexpose.count == 0) {
graphPtr->eventuallyRedraw();
}
}
else if ((eventPtr->type == FocusIn) || (eventPtr->type == FocusOut)) {
if (eventPtr->xfocus.detail != NotifyInferior) {
if (eventPtr->type == FocusIn)
graphPtr->flags |= FOCUS;
else
graphPtr->flags &= ~FOCUS;
graphPtr->eventuallyRedraw();
}
}
else if (eventPtr->type == DestroyNotify) {
if (!(graphPtr->flags & GRAPH_DELETED)) {
graphPtr->flags |= GRAPH_DELETED;
Tcl_DeleteCommandFromToken(graphPtr->interp_, graphPtr->cmdToken_);
if (graphPtr->flags & REDRAW_PENDING)
Tcl_CancelIdleCall(DisplayGraph, graphPtr);
Tcl_EventuallyFree(graphPtr, DestroyGraph);
}
}
else if (eventPtr->type == ConfigureNotify) {
graphPtr->flags |= RESET;
graphPtr->eventuallyRedraw();
}
}
void DisplayGraph(ClientData clientData)
{
Graph* graphPtr = (Graph*)clientData;
graphPtr->draw();
}
// called by Tcl_EventuallyFree and others
void DestroyGraph(char* dataPtr)
{
Graph* graphPtr = (Graph*)dataPtr;
delete graphPtr;
}
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