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-rw-r--r--src/Fl_Chart.cxx552
1 files changed, 311 insertions, 241 deletions
diff --git a/src/Fl_Chart.cxx b/src/Fl_Chart.cxx
index e7a30fc92..0b68a6582 100644
--- a/src/Fl_Chart.cxx
+++ b/src/Fl_Chart.cxx
@@ -1,7 +1,7 @@
//
-// Forms-compatible chart widget for the Fast Light Tool Kit (FLTK).
+// Chart widget for the Fast Light Tool Kit (FLTK).
//
-// Copyright 1998-2010 by Bill Spitzak and others.
+// Copyright 1998-2023 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
@@ -21,290 +21,347 @@
#include "flstring.h"
#include <stdlib.h>
-#define ARCINC (2.0*M_PI/360.0)
-
// this function is in fl_boxtype.cxx:
-void fl_rectbound(int x,int y,int w,int h, Fl_Color color);
+void fl_rectbound(int x, int y, int w, int h, Fl_Color color);
+
-/* Widget specific information */
+static const double ARCINC = (2.0 * M_PI / 360.0);
-static void draw_barchart(int x,int y,int w,int h,
- int numb, FL_CHART_ENTRY entries[],
- double min, double max, int autosize, int maxnumb,
- Fl_Color textcolor)
-/* Draws a bar chart. x,y,w,h is the bounding box, entries the array of
- numb entries and min and max the boundaries. */
+
+/**
+ Draws a bar chart.
+
+ \p x, \p y, \p w, \p h is the bounding box,
+ \p entries the array of \p numb entries,
+ and \p min and \p max the boundaries.
+
+ \param[in] x, y, w, h Widget position and size
+ \param[in] numb Number of values
+ \param[in] entries Array of values
+ \param[in] min Lower boundary
+ \param[in] max Upper boundary
+ \param[in] autosize Whether the chart autosizes
+ \param[in] maxnumb Maximal number of entries
+ \param[in] textcolor Text color
+*/
+void Fl_Chart::draw_barchart(int x, int y, int w, int h, int numb, FL_CHART_ENTRY entries[],
+ double min, double max, int autosize, int maxnumb, Fl_Color textcolor)
{
double incr;
int zeroh;
double lh = fl_height();
- if (max == min) incr = h;
- else incr = h/(max-min);
- if ( (-min*incr) < lh) {
- incr = (h - lh + min*incr)/(max-min);
- zeroh = int(y+h-lh);
+ if (max == min)
+ incr = h;
+ else
+ incr = h / (max - min);
+ if ((-min * incr) < lh) {
+ incr = (h - lh + min * incr) / (max - min);
+ zeroh = int(y + h - lh);
} else {
- zeroh = (int)rint(y+h+min * incr);
+ zeroh = (int)rint(y + h + min * incr);
}
- int bwidth = (int)rint(w/double(autosize?numb:maxnumb));
- /* Draw base line */
+ int bwidth = (int)rint(w / double(autosize ? numb : maxnumb));
+ // Draw base line
fl_color(textcolor);
- fl_line(x, zeroh, x+w, zeroh);
- if (min == 0.0 && max == 0.0) return; /* Nothing else to draw */
+ fl_line(x, zeroh, x + w, zeroh);
+ if (min == 0.0 && max == 0.0)
+ return; // Nothing else to draw
int i;
- /* Draw the bars */
- for (i=0; i<numb; i++) {
- int hh = (int)rint(entries[i].val*incr);
- if (hh < 0)
- fl_rectbound(x+i*bwidth,zeroh,bwidth+1,-hh+1, (Fl_Color)entries[i].col);
- else if (hh > 0)
- fl_rectbound(x+i*bwidth,zeroh-hh,bwidth+1,hh+1,(Fl_Color)entries[i].col);
+ // Draw the bars
+ for (i = 0; i < numb; i++) {
+ int hh = (int)rint(entries[i].val * incr);
+ if (hh < 0)
+ fl_rectbound(x + i * bwidth, zeroh, bwidth + 1, -hh + 1, (Fl_Color)entries[i].col);
+ else if (hh > 0)
+ fl_rectbound(x + i * bwidth, zeroh - hh, bwidth + 1, hh + 1, (Fl_Color)entries[i].col);
}
- /* Draw the labels */
+ // Draw the labels
fl_color(textcolor);
- for (i=0; i<numb; i++)
- fl_draw(entries[i].str,
- x+i*bwidth+bwidth/2,zeroh,0,0,
- FL_ALIGN_TOP);
+ for (i = 0; i < numb; i++)
+ fl_draw(entries[i].str, x + i * bwidth + bwidth / 2, zeroh, 0, 0, FL_ALIGN_TOP);
}
-static void draw_horbarchart(int x,int y,int w,int h,
- int numb, FL_CHART_ENTRY entries[],
- double min, double max, int autosize, int maxnumb,
- Fl_Color textcolor)
-/* Draws a horizontal bar chart. x,y,w,h is the bounding box, entries the
- array of numb entries and min and max the boundaries. */
+
+/**
+ Draws a horizontal bar chart.
+
+ \p x, \p y, \p w, \p h is the bounding box,
+ \p entries the array of \p numb entries,
+ and \p min and \p max the boundaries.
+
+ \param[in] x, y, w, h Widget position and size
+ \param[in] numb Number of values
+ \param[in] entries Array of values
+ \param[in] min Lower boundary
+ \param[in] max Upper boundary
+ \param[in] autosize Whether the chart autosizes
+ \param[in] maxnumb Maximal number of entries
+ \param[in] textcolor Text color
+*/
+void Fl_Chart::draw_horbarchart(int x, int y, int w, int h, int numb, FL_CHART_ENTRY entries[],
+ double min, double max, int autosize, int maxnumb,
+ Fl_Color textcolor)
{
int i;
- double lw = 0.0; /* Maximal label width */
- /* Compute maximal label width */
- for (i=0; i<numb; i++) {
- double w1 = fl_width(entries[i].str);
- if (w1 > lw) lw = w1;
+ double lw = 0.0; // Maximal label width
+ // Compute maximal label width
+ for (i = 0; i < numb; i++) {
+ double w1 = fl_width(entries[i].str);
+ if (w1 > lw)
+ lw = w1;
}
- if (lw > 0.0) lw += 4.0;
+ if (lw > 0.0)
+ lw += 4.0;
double incr;
int zeroh;
- if (max == min) incr = w;
- else incr = w/(max-min);
- if ( (-min*incr) < lw) {
- incr = (w - lw + min*incr)/(max-min);
- zeroh = x+(int)rint(lw);
+ if (max == min)
+ incr = w;
+ else
+ incr = w / (max - min);
+ if ((-min * incr) < lw) {
+ incr = (w - lw + min * incr) / (max - min);
+ zeroh = x + (int)rint(lw);
} else {
- zeroh = (int)rint(x-min * incr);
+ zeroh = (int)rint(x - min * incr);
}
- int bwidth = (int)rint(h/double(autosize?numb:maxnumb));
- /* Draw base line */
+ int bwidth = (int)rint(h / double(autosize ? numb : maxnumb));
+ // Draw base line
fl_color(textcolor);
- fl_line(zeroh, y, zeroh, y+h);
- if (min == 0.0 && max == 0.0) return; /* Nothing else to draw */
- /* Draw the bars */
- for (i=0; i<numb; i++) {
- int ww = (int)rint(entries[i].val*incr);
- if (ww > 0)
- fl_rectbound(zeroh,y+i*bwidth,ww+1,bwidth+1, (Fl_Color)entries[i].col);
- else if (ww < 0)
- fl_rectbound(zeroh+ww,y+i*bwidth,-ww+1,bwidth+1,(Fl_Color)entries[i].col);
+ fl_line(zeroh, y, zeroh, y + h);
+ if (min == 0.0 && max == 0.0)
+ return; // Nothing else to draw
+ // Draw the bars
+ for (i = 0; i < numb; i++) {
+ int ww = (int)rint(entries[i].val * incr);
+ if (ww > 0)
+ fl_rectbound(zeroh, y + i * bwidth, ww + 1, bwidth + 1, (Fl_Color)entries[i].col);
+ else if (ww < 0)
+ fl_rectbound(zeroh + ww, y + i * bwidth, -ww + 1, bwidth + 1, (Fl_Color)entries[i].col);
}
- /* Draw the labels */
+ // Draw the labels
fl_color(textcolor);
- for (i=0; i<numb; i++)
- fl_draw(entries[i].str,
- zeroh-2,y+i*bwidth+bwidth/2,0,0,
- FL_ALIGN_RIGHT);
+ for (i = 0; i < numb; i++)
+ fl_draw(entries[i].str, zeroh - 2, y + i * bwidth + bwidth / 2, 0, 0, FL_ALIGN_RIGHT);
}
-static void draw_linechart(int type, int x,int y,int w,int h,
- int numb, FL_CHART_ENTRY entries[],
- double min, double max, int autosize, int maxnumb,
- Fl_Color textcolor)
-/* Draws a line chart. x,y,w,h is the bounding box, entries the array of
- numb entries and min and max the boundaries. */
+
+/**
+ Draws a line chart.
+
+ \p x, \p y, \p w, \p h is the bounding box,
+ \p entries the array of \p numb entries,
+ and \p min and \p max the boundaries.
+
+ \param[in] x, y, w, h Widget position and size
+ \param[in] numb Number of values
+ \param[in] entries Array of values
+ \param[in] min Lower boundary
+ \param[in] max Upper boundary
+ \param[in] autosize Whether the chart autosizes
+ \param[in] maxnumb Maximal number of entries
+ \param[in] textcolor Text color
+*/
+void Fl_Chart::draw_linechart(int type, int x, int y, int w, int h, int numb,
+ FL_CHART_ENTRY entries[], double min, double max, int autosize,
+ int maxnumb, Fl_Color textcolor)
{
int i;
double lh = fl_height();
double incr;
- if (max == min) incr = h-2.0*lh;
- else incr = (h-2.0*lh)/ (max-min);
- int zeroh = (int)rint(y+h-lh+min * incr);
- double bwidth = w/double(autosize?numb:maxnumb);
- /* Draw the values */
- for (i=0; i<numb; i++) {
- int x0 = x + (int)rint((i-.5)*bwidth);
- int x1 = x + (int)rint((i+.5)*bwidth);
- int yy0 = i ? zeroh - (int)rint(entries[i-1].val*incr) : 0;
- int yy1 = zeroh - (int)rint(entries[i].val*incr);
- if (type == FL_SPIKE_CHART) {
- fl_color((Fl_Color)entries[i].col);
- fl_line(x1, zeroh, x1, yy1);
- } else if (type == FL_LINE_CHART && i != 0) {
- fl_color((Fl_Color)entries[i-1].col);
- fl_line(x0,yy0,x1,yy1);
- } else if (type == FL_FILLED_CHART && i != 0) {
- fl_color((Fl_Color)entries[i-1].col);
- if ((entries[i-1].val>0.0)!=(entries[i].val>0.0)) {
- double ttt = entries[i-1].val/(entries[i-1].val-entries[i].val);
- int xt = x + (int)rint((i-.5+ttt)*bwidth);
- fl_polygon(x0,zeroh, x0,yy0, xt,zeroh);
- fl_polygon(xt,zeroh, x1,yy1, x1,zeroh);
- } else {
- fl_polygon(x0,zeroh, x0,yy0, x1,yy1, x1,zeroh);
- }
- fl_color(textcolor);
- fl_line(x0,yy0,x1,yy1);
+ if (max == min)
+ incr = h - 2.0 * lh;
+ else
+ incr = (h - 2.0 * lh) / (max - min);
+ int zeroh = (int)rint(y + h - lh + min * incr);
+ double bwidth = w / double(autosize ? numb : maxnumb);
+ // Draw the values
+ for (i = 0; i < numb; i++) {
+ int x0 = x + (int)rint((i - .5) * bwidth);
+ int x1 = x + (int)rint((i + .5) * bwidth);
+ int yy0 = i ? zeroh - (int)rint(entries[i - 1].val * incr) : 0;
+ int yy1 = zeroh - (int)rint(entries[i].val * incr);
+ if (type == FL_SPIKE_CHART) {
+ fl_color((Fl_Color)entries[i].col);
+ fl_line(x1, zeroh, x1, yy1);
+ } else if (type == FL_LINE_CHART && i != 0) {
+ fl_color((Fl_Color)entries[i - 1].col);
+ fl_line(x0, yy0, x1, yy1);
+ } else if (type == FL_FILLED_CHART && i != 0) {
+ fl_color((Fl_Color)entries[i - 1].col);
+ if ((entries[i - 1].val > 0.0) != (entries[i].val > 0.0)) {
+ double ttt = entries[i - 1].val / (entries[i - 1].val - entries[i].val);
+ int xt = x + (int)rint((i - .5 + ttt) * bwidth);
+ fl_polygon(x0, zeroh, x0, yy0, xt, zeroh);
+ fl_polygon(xt, zeroh, x1, yy1, x1, zeroh);
+ } else {
+ fl_polygon(x0, zeroh, x0, yy0, x1, yy1, x1, zeroh);
}
+ fl_color(textcolor);
+ fl_line(x0, yy0, x1, yy1);
+ }
}
- /* Draw base line */
+ // Draw base line
fl_color(textcolor);
- fl_line(x,zeroh,x+w,zeroh);
- /* Draw the labels */
- for (i=0; i<numb; i++)
- fl_draw(entries[i].str,
- x+(int)rint((i+.5)*bwidth), zeroh - (int)rint(entries[i].val*incr),0,0,
- entries[i].val>=0 ? FL_ALIGN_BOTTOM : FL_ALIGN_TOP);
+ fl_line(x, zeroh, x + w, zeroh);
+ // Draw the labels
+ for (i = 0; i < numb; i++)
+ fl_draw(entries[i].str, x + (int)rint((i + .5) * bwidth),
+ zeroh - (int)rint(entries[i].val * incr), 0, 0,
+ entries[i].val >= 0 ? FL_ALIGN_BOTTOM : FL_ALIGN_TOP);
}
-static void draw_piechart(int x,int y,int w,int h,
- int numb, FL_CHART_ENTRY entries[], int special,
- Fl_Color textcolor)
-/* Draws a pie chart. x,y,w,h is the bounding box, entries the array of
- numb entries */
-{
+
+/**
+ Draws a pie chart.
+
+ \param[in] x,y,w,h bounding box
+ \param[in] numb number of chart entries
+ \param[in] entries array of chart entries
+ \param[in] special special (?)
+ \param[in] textcolor text color
+*/
+void Fl_Chart::draw_piechart(int x, int y, int w, int h, int numb, FL_CHART_ENTRY entries[],
+ int special, Fl_Color textcolor) {
int i;
- double xc,yc,rad; /* center and radius */
- double tot; /* sum of values */
- double incr; /* increment in angle */
- double curang; /* current angle we are drawing */
- double txc,tyc; /* temporary center */
+ double xc, yc, rad; // center and radius
+ double tot; // sum of values
+ double incr; // increment in angle
+ double curang; // current angle we are drawing
+ double txc, tyc; // temporary center
double lh = fl_height();
- /* compute center and radius */
+
+ // compute center and radius
double h_denom = (special ? 2.3 : 2.0);
- rad = (h - 2*lh)/h_denom/1.1;
- xc = x+w/2.0; yc = y+h-1.1*rad-lh;
- /* compute sum of values */
+ rad = (h - 2 * lh) / h_denom / 1.1;
+ xc = x + w / 2.0;
+ yc = y + h - 1.1 * rad - lh;
+
+ // compute sum of values
tot = 0.0;
- for (i=0; i<numb; i++)
- if (entries[i].val > 0.0) tot += entries[i].val;
- if (tot == 0.0) return;
- incr = 360.0/tot;
- /* Draw the pie */
- curang = 0.0;
- for (i=0; i<numb; i++)
+ for (i = 0; i < numb; i++) {
if (entries[i].val > 0.0)
- {
- txc = xc; tyc = yc;
- /* Correct for special pies */
- if (special && i==0)
- {
- txc += 0.3*rad*cos(ARCINC*(curang+0.5*incr*entries[i].val));
- tyc -= 0.3*rad*sin(ARCINC*(curang+0.5*incr*entries[i].val));
+ tot += entries[i].val;
+ }
+ if (tot == 0.0)
+ return;
+ incr = 360.0 / tot;
+ // Draw the pie
+ curang = 0.0;
+ for (i = 0; i < numb; i++) {
+ if (entries[i].val > 0.0) {
+ txc = xc;
+ tyc = yc;
+ // Correct for special pies
+ if (special && i == 0) {
+ txc += 0.3 * rad * cos(ARCINC * (curang + 0.5 * incr * entries[i].val));
+ tyc -= 0.3 * rad * sin(ARCINC * (curang + 0.5 * incr * entries[i].val));
}
fl_color((Fl_Color)entries[i].col);
- fl_begin_polygon(); fl_vertex(txc,tyc);
- fl_arc(txc,tyc,rad,curang, curang+incr*entries[i].val);
+ fl_begin_polygon();
+ fl_vertex(txc, tyc);
+ fl_arc(txc, tyc, rad, curang, curang + incr * entries[i].val);
fl_end_polygon();
fl_color(textcolor);
- fl_begin_loop(); fl_vertex(txc,tyc);
- fl_arc(txc,tyc,rad,curang, curang+incr*entries[i].val);
+ fl_begin_loop();
+ fl_vertex(txc, tyc);
+ fl_arc(txc, tyc, rad, curang, curang + incr * entries[i].val);
fl_end_loop();
curang += 0.5 * incr * entries[i].val;
- /* draw the label */
- double xl = txc + 1.1*rad*cos(ARCINC*curang);
- fl_draw(entries[i].str,
- (int)rint(xl),
- (int)rint(tyc - 1.1*rad*sin(ARCINC*curang)),
- 0, 0,
- xl<txc ? FL_ALIGN_RIGHT : FL_ALIGN_LEFT);
+ // draw the label
+ double xl = txc + 1.1 * rad * cos(ARCINC * curang);
+ fl_draw(entries[i].str, (int)rint(xl), (int)rint(tyc - 1.1 * rad * sin(ARCINC * curang)), 0,
+ 0, xl < txc ? FL_ALIGN_RIGHT : FL_ALIGN_LEFT);
curang += 0.5 * incr * entries[i].val;
}
+ }
}
+/**
+ Draws the Fl_Chart widget.
+*/
void Fl_Chart::draw() {
- draw_box();
- Fl_Boxtype b = box();
- int xx = x()+Fl::box_dx(b); // was 9 instead of dx...
- int yy = y()+Fl::box_dy(b);
- int ww = w()-Fl::box_dw(b);
- int hh = h()-Fl::box_dh(b);
- fl_push_clip(xx, yy, ww, hh);
-
- ww--; hh--; // adjust for line thickness
-
- if (min >= max) {
- min = max = 0.0;
- for (int i=0; i<numb; i++) {
- if (entries[i].val < min) min = entries[i].val;
- if (entries[i].val > max) max = entries[i].val;
- }
+ draw_box();
+ Fl_Boxtype b = box();
+ int xx = x() + Fl::box_dx(b); // was 9 instead of dx...
+ int yy = y() + Fl::box_dy(b);
+ int ww = w() - Fl::box_dw(b);
+ int hh = h() - Fl::box_dh(b);
+ fl_push_clip(xx, yy, ww, hh);
+
+ ww--;
+ hh--; // adjust for line thickness
+
+ if (min >= max) {
+ min = max = 0.0;
+ for (int i = 0; i < numb; i++) {
+ if (entries[i].val < min)
+ min = entries[i].val;
+ if (entries[i].val > max)
+ max = entries[i].val;
}
+ }
- fl_font(textfont(),textsize());
+ fl_font(textfont(), textsize());
- switch (type()) {
+ switch (type()) {
case FL_BAR_CHART:
- ww++; // makes the bars fill box correctly
- draw_barchart(xx,yy,ww,hh, numb, entries, min, max,
- autosize(), maxnumb, textcolor());
- break;
+ ww++; // makes the bars fill box correctly
+ draw_barchart(xx, yy, ww, hh, numb, entries, min, max, autosize(), maxnumb, textcolor());
+ break;
case FL_HORBAR_CHART:
- hh++; // makes the bars fill box correctly
- draw_horbarchart(xx,yy,ww,hh, numb, entries, min, max,
- autosize(), maxnumb, textcolor());
- break;
+ hh++; // makes the bars fill box correctly
+ draw_horbarchart(xx, yy, ww, hh, numb, entries, min, max, autosize(), maxnumb, textcolor());
+ break;
case FL_PIE_CHART:
- draw_piechart(xx,yy,ww,hh,numb,entries,0, textcolor());
- break;
+ draw_piechart(xx, yy, ww, hh, numb, entries, 0, textcolor());
+ break;
case FL_SPECIALPIE_CHART:
- draw_piechart(xx,yy,ww,hh,numb,entries,1,textcolor());
- break;
+ draw_piechart(xx, yy, ww, hh, numb, entries, 1, textcolor());
+ break;
default:
- draw_linechart(type(),xx,yy,ww,hh, numb, entries, min, max,
- autosize(), maxnumb, textcolor());
- break;
- }
- draw_label();
- fl_pop_clip();
+ draw_linechart(type(), xx, yy, ww, hh, numb, entries, min, max, autosize(), maxnumb,
+ textcolor());
+ break;
+ }
+ draw_label();
+ fl_pop_clip();
}
-/*------------------------------*/
-
-#define FL_CHART_BOXTYPE FL_BORDER_BOX
-#define FL_CHART_COL1 FL_COL1
-#define FL_CHART_LCOL FL_LCOL
-#define FL_CHART_ALIGN FL_ALIGN_BOTTOM
/**
Create a new Fl_Chart widget using the given position, size and label string.
+
The default boxstyle is \c FL_NO_BOX.
+
\param[in] X, Y, W, H position and size of the widget
\param[in] L widget label, default is no label
- */
-Fl_Chart::Fl_Chart(int X, int Y, int W, int H,const char *L) :
-Fl_Widget(X,Y,W,H,L) {
+*/
+Fl_Chart::Fl_Chart(int X, int Y, int W, int H, const char *L)
+ : Fl_Widget(X, Y, W, H, L) {
box(FL_BORDER_BOX);
align(FL_ALIGN_BOTTOM);
- numb = 0;
- maxnumb = 0;
- sizenumb = FL_CHART_MAX;
- autosize_ = 1;
- min = max = 0;
- textfont_ = FL_HELVETICA;
- textsize_ = 10;
+ numb = 0;
+ maxnumb = 0;
+ sizenumb = FL_CHART_MAX;
+ autosize_ = 1;
+ min = max = 0;
+ textfont_ = FL_HELVETICA;
+ textsize_ = 10;
textcolor_ = FL_FOREGROUND_COLOR;
- entries = (FL_CHART_ENTRY *)calloc(sizeof(FL_CHART_ENTRY), FL_CHART_MAX + 1);
+ entries = (FL_CHART_ENTRY *)calloc(sizeof(FL_CHART_ENTRY), FL_CHART_MAX + 1);
}
/**
Destroys the Fl_Chart widget and all of its data.
- */
+*/
Fl_Chart::~Fl_Chart() {
free(entries);
}
/**
Removes all values from the chart.
- */
+*/
void Fl_Chart::clear() {
numb = 0;
min = max = 0;
@@ -312,14 +369,15 @@ void Fl_Chart::clear() {
}
/**
- Add the data value \p val with optional label \p str and color \p col
+ Adds the data value \p val with optional label \p str and color \p col
to the chart.
+
\param[in] val data value
\param[in] str optional data label
\param[in] col optional data color
- */
+*/
void Fl_Chart::add(double val, const char *str, unsigned col) {
- /* Allocate more entries if required */
+ // Allocate more entries if required
if (numb >= sizenumb) {
sizenumb += FL_CHART_MAX;
entries = (FL_CHART_ENTRY *)realloc(entries, sizeof(FL_CHART_ENTRY) * (sizenumb + 1));
@@ -327,73 +385,82 @@ void Fl_Chart::add(double val, const char *str, unsigned col) {
// Shift entries as needed
if (numb >= maxnumb && maxnumb > 0) {
memmove(entries, entries + 1, sizeof(FL_CHART_ENTRY) * (numb - 1));
- numb --;
+ numb--;
}
entries[numb].val = float(val);
entries[numb].col = col;
- if (str) {
- strlcpy(entries[numb].str,str,FL_CHART_LABEL_MAX + 1);
- } else {
- entries[numb].str[0] = 0;
- }
+ if (str) {
+ strlcpy(entries[numb].str, str, FL_CHART_LABEL_MAX + 1);
+ } else {
+ entries[numb].str[0] = 0;
+ }
numb++;
redraw();
}
/**
Inserts a data value \p val at the given position \p ind.
+
Position 1 is the first data value.
+
\param[in] ind insertion position
\param[in] val data value
\param[in] str optional data label
\param[in] col optional data color
- */
+*/
void Fl_Chart::insert(int ind, double val, const char *str, unsigned col) {
int i;
- if (ind < 1 || ind > numb+1) return;
- /* Allocate more entries if required */
+ if (ind < 1 || ind > numb + 1)
+ return;
+ // Allocate more entries if required
if (numb >= sizenumb) {
sizenumb += FL_CHART_MAX;
entries = (FL_CHART_ENTRY *)realloc(entries, sizeof(FL_CHART_ENTRY) * (sizenumb + 1));
}
// Shift entries as needed
- for (i=numb; i >= ind; i--) entries[i] = entries[i-1];
- if (numb < maxnumb || maxnumb == 0) numb++;
- /* Fill in the new entry */
- entries[ind-1].val = float(val);
- entries[ind-1].col = col;
+ for (i = numb; i >= ind; i--)
+ entries[i] = entries[i - 1];
+ if (numb < maxnumb || maxnumb == 0)
+ numb++;
+ // Fill in the new entry
+ entries[ind - 1].val = float(val);
+ entries[ind - 1].col = col;
if (str) {
- strlcpy(entries[ind-1].str,str,FL_CHART_LABEL_MAX+1);
+ strlcpy(entries[ind - 1].str, str, FL_CHART_LABEL_MAX + 1);
} else {
- entries[ind-1].str[0] = 0;
+ entries[ind - 1].str[0] = 0;
}
redraw();
}
/**
- Replace a data value \p val at the given position \p ind.
+ Replaces a data value \p val at the given position \p ind.
+
Position 1 is the first data value.
+
\param[in] ind insertion position
\param[in] val data value
\param[in] str optional data label
\param[in] col optional data color
- */
-void Fl_Chart::replace(int ind,double val, const char *str, unsigned col) {
- if (ind < 1 || ind > numb) return;
- entries[ind-1].val = float(val);
- entries[ind-1].col = col;
+*/
+void Fl_Chart::replace(int ind, double val, const char *str, unsigned col) {
+ if (ind < 1 || ind > numb)
+ return;
+ entries[ind - 1].val = float(val);
+ entries[ind - 1].col = col;
if (str) {
- strlcpy(entries[ind-1].str,str,FL_CHART_LABEL_MAX+1);
+ strlcpy(entries[ind - 1].str, str, FL_CHART_LABEL_MAX + 1);
} else {
- entries[ind-1].str[0] = 0;
+ entries[ind - 1].str[0] = 0;
}
redraw();
}
/**
Sets the lower and upper bounds of the chart values.
+
\param[in] a, b are used to set lower, upper
- */
+*/
void Fl_Chart::bounds(double a, double b) {
this->min = a;
this->max = b;
@@ -401,21 +468,24 @@ void Fl_Chart::bounds(double a, double b) {
}
/**
- Set the maximum number of data values for a chart.
+ Sets the maximum number of data values for a chart.
+
If you do not call this method then the chart will be allowed to grow
to any size depending on available memory.
+
\param[in] m maximum number of data values allowed.
- */
+*/
void Fl_Chart::maxsize(int m) {
int i;
- /* Fill in the new number */
- if (m < 0) return;
+ // Fill in the new number
+ if (m < 0)
+ return;
maxnumb = m;
- /* Shift entries if required */
+ // Shift entries if required
if (numb > maxnumb) {
- for (i = 0; i<maxnumb; i++)
- entries[i] = entries[i+numb-maxnumb];
- numb = maxnumb;
- redraw();
+ for (i = 0; i < maxnumb; i++)
+ entries[i] = entries[i + numb - maxnumb];
+ numb = maxnumb;
+ redraw();
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2026-02-08 17:54:47 +0000