first version of the generic gui for the tracer
This commit is contained in:
Cedric Roux
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#include "gui.h"
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#include "gui_defs.h"
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#include "x.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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static void paint(gui *_gui, widget *_this)
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{
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struct gui *g = _gui;
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struct xy_plot_widget *this = _this;
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int wanted_plot_width, allocated_plot_width;
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int wanted_plot_height, allocated_plot_height;
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float pxsize;
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float ticdist;
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float tic;
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float ticstep;
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int k, kmin, kmax;
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float allocated_xmin, allocated_xmax;
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float allocated_ymin, allocated_ymax;
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float center;
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printf("PAINT xy plot xywh %d %d %d %d\n", this->common.x, this->common.y, this->common.width, this->common.height);
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//x_draw_rectangle(g->x, g->xwin, 1, this->common.x, this->common.y, this->common.width, this->common.height);
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/* plot zone */
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/* TODO: refine height - height of hrule text may be != from label */
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x_draw_rectangle(g->x, g->xwin, 1,
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this->common.x + this->vrule_width,
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this->common.y,
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this->common.width - this->vrule_width -1, /* -1 to see right border */
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this->common.height - this->label_height * 2);
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/* horizontal tics */
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wanted_plot_width = this->wanted_width;
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allocated_plot_width = this->common.width - this->vrule_width;
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pxsize = (this->xmax - this->xmin) / wanted_plot_width;
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ticdist = 100;
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tic = floor(log10(ticdist * pxsize));
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ticstep = powf(10, tic);
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center = (this->xmax + this->xmin) / 2;
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allocated_xmin = center - ((this->xmax - this->xmin) *
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allocated_plot_width / wanted_plot_width) / 2;
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allocated_xmax = center + ((this->xmax - this->xmin) *
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allocated_plot_width / wanted_plot_width) / 2;
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/* adjust tic if too tight */
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printf("pre x ticstep %g\n", ticstep);
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while (1) {
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if (ticstep / (allocated_xmax - allocated_xmin)
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* (allocated_plot_width - 1) > 40) break;
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ticstep *= 2;
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}
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printf("post x ticstep %g\n", ticstep);
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printf("xmin/max %g %g width wanted allocated %d %d alloc xmin/max %g %g ticstep %g\n", this->xmin, this->xmax, wanted_plot_width, allocated_plot_width, allocated_xmin, allocated_xmax, ticstep);
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kmin = ceil(allocated_xmin / ticstep);
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kmax = floor(allocated_xmax / ticstep);
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for (k = kmin; k <= kmax; k++) {
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/*
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(k * ticstep - allocated_xmin) / (allocated_max - allocated_xmin) =
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(x - 0) / (allocated_plot_width-1 - 0)
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*/
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char v[64];
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int vwidth, dummy;
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float x = (k * ticstep - allocated_xmin) /
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(allocated_xmax - allocated_xmin) *
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(allocated_plot_width - 1);
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x_draw_line(g->x, g->xwin, FOREGROUND_COLOR,
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this->common.x + this->vrule_width + x,
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this->common.y + this->common.height - this->label_height * 2,
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this->common.x + this->vrule_width + x,
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this->common.y + this->common.height - this->label_height * 2 - 5);
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sprintf(v, "%g", k * ticstep);
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x_text_get_dimensions(g->x, v, &vwidth, &dummy, &dummy);
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x_draw_string(g->x, g->xwin, FOREGROUND_COLOR,
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this->common.x + this->vrule_width + x - vwidth/2,
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this->common.y + this->common.height - this->label_height * 2 + this->label_baseline,
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v);
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printf("tic k %d val %g x %g\n", k, k * ticstep, x);
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}
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/* vertical tics */
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wanted_plot_height = this->wanted_height;
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allocated_plot_height = this->common.height - this->label_height * 2;
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pxsize = (this->ymax - this->ymin) / wanted_plot_height;
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ticdist = 30;
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tic = floor(log10(ticdist * pxsize));
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ticstep = powf(10, tic);
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center = (this->ymax + this->ymin) / 2;
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allocated_ymin = center - ((this->ymax - this->ymin) *
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allocated_plot_height / wanted_plot_height) / 2;
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allocated_ymax = center + ((this->ymax - this->ymin) *
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allocated_plot_height / wanted_plot_height) / 2;
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/* adjust tic if too tight */
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printf("pre y ticstep %g\n", ticstep);
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while (1) {
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if (ticstep / (allocated_ymax - allocated_ymin)
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* (allocated_plot_height - 1) > 20) break;
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ticstep *= 2;
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}
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printf("post y ticstep %g\n", ticstep);
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printf("ymin/max %g %g height wanted allocated %d %d alloc ymin/max %g %g ticstep %g\n", this->ymin, this->ymax, wanted_plot_height, allocated_plot_height, allocated_ymin, allocated_ymax, ticstep);
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kmin = ceil(allocated_ymin / ticstep);
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kmax = floor(allocated_ymax / ticstep);
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for (k = kmin; k <= kmax; k++) {
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char v[64];
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int vwidth, dummy;
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float y = (k * ticstep - allocated_ymin) /
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(allocated_ymax - allocated_ymin) *
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(allocated_plot_height - 1);
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sprintf(v, "%g", k * ticstep);
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x_text_get_dimensions(g->x, v, &vwidth, &dummy, &dummy);
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x_draw_line(g->x, g->xwin, FOREGROUND_COLOR,
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this->common.x + this->vrule_width,
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this->common.y + y,
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this->common.x + this->vrule_width + 5,
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this->common.y + y);
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x_draw_string(g->x, g->xwin, FOREGROUND_COLOR,
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this->common.x + this->vrule_width - vwidth - 2,
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this->common.y + y - this->label_height / 2 + this->label_baseline,
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v);
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}
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/* label at bottom, in the middle */
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x_draw_string(g->x, g->xwin, FOREGROUND_COLOR,
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this->common.x + (this->common.width - this->label_width) / 2,
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this->common.y + this->common.height - this->label_height
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+ this->label_baseline,
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this->label);
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}
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static void hints(gui *_gui, widget *_w, int *width, int *height)
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{
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struct xy_plot_widget *w = _w;
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*width = w->wanted_width + w->vrule_width;
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*height = w->wanted_height + w->label_height * 2; /* TODO: refine */
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printf("HINTS xy plot wh %d %d (vrule_width %d) (wanted wh %d %d)\n", *width, *height, w->vrule_width, w->wanted_width, w->wanted_height);
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}
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widget *new_xy_plot(gui *_gui, int width, int height, char *label,
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int vruler_width)
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{
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struct gui *g = _gui;
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struct xy_plot_widget *w;
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glock(g);
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w = new_widget(g, XY_PLOT, sizeof(struct xy_plot_widget));
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w->label = strdup(label); if (w->label == NULL) OOM;
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/* TODO: be sure calling X there is valid wrt "global model" (we are
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* not in the "gui thread") */
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x_text_get_dimensions(g->x, label, &w->label_width, &w->label_height,
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&w->label_baseline);
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printf("XY PLOT label wh %d %d\n", w->label_width, w->label_height);
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w->wanted_width = width;
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w->wanted_height = height;
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w->vrule_width = vruler_width;
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w->xmin = -1;
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w->xmax = 1;
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w->ymin = -1;
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w->ymax = 1;
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w->common.paint = paint;
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w->common.hints = hints;
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gunlock(g);
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return w;
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}
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