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Start plotting something.
The first plotting method was removed from profile.c to profilegraphics.cpp and some conversion ( almost 1 to 1 ) was made so that the code could work. Since the code is big - this commit has just a part of it working - it plots the grid. but already works for testing the resizing of the window and Zooming ( unimplemented ) Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org> Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
This commit is contained in:
Tomaz Canabrava
Dirk Hohndel
parent
fa82ba6079
commit
19048b98e5
4 changed files with 251 additions and 216 deletions
204
profile.c
204
profile.c
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@ -58,11 +58,6 @@ struct plot_data {
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#if USE_GTK_UI
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/* Scale to 0,0 -> maxx,maxy */
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#define SCALEX(gc,x) (((x)-gc->leftx)/(gc->rightx-gc->leftx)*gc->maxx)
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#define SCALEY(gc,y) (((y)-gc->topy)/(gc->bottomy-gc->topy)*gc->maxy)
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#define SCALE(gc,x,y) SCALEX(gc,x),SCALEY(gc,y)
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/* keep the last used gc around so we can invert the SCALEX calculation in
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* order to calculate a time value for an x coordinate */
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static struct graphics_context last_gc;
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@ -611,205 +606,6 @@ static void plot_pp_gas_profile(struct graphics_context *gc, struct plot_info *p
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}
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}
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static void plot_depth_profile(struct graphics_context *gc, struct plot_info *pi)
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{
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int i, incr;
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cairo_t *cr = gc->cr;
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int sec, depth;
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struct plot_data *entry;
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int maxtime, maxdepth, marker, maxline;
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int increments[8] = { 10, 20, 30, 60, 5*60, 10*60, 15*60, 30*60 };
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/* Get plot scaling limits */
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maxtime = get_maxtime(pi);
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maxdepth = get_maxdepth(pi);
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gc->maxtime = maxtime;
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/* Time markers: at most every 10 seconds, but no more than 12 markers.
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* We start out with 10 seconds and increment up to 30 minutes,
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* depending on the dive time.
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* This allows for 6h dives - enough (I hope) for even the craziest
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* divers - but just in case, for those 8h depth-record-breaking dives,
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* we double the interval if this still doesn't get us to 12 or fewer
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* time markers */
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i = 0;
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while (maxtime / increments[i] > 12 && i < 7)
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i++;
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incr = increments[i];
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while (maxtime / incr > 12)
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incr *= 2;
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gc->leftx = 0; gc->rightx = maxtime;
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gc->topy = 0; gc->bottomy = 1.0;
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last_gc = *gc;
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set_source_rgba(gc, TIME_GRID);
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cairo_set_line_width_scaled(gc->cr, 2);
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for (i = incr; i < maxtime; i += incr) {
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move_to(gc, i, 0);
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line_to(gc, i, 1);
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}
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cairo_stroke(cr);
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/* now the text on the time markers */
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text_render_options_t tro = {DEPTH_TEXT_SIZE, TIME_TEXT, CENTER, TOP};
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if (maxtime < 600) {
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/* Be a bit more verbose with shorter dives */
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for (i = incr; i < maxtime; i += incr)
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plot_text(gc, &tro, i, 1, "%02d:%02d", i/60, i%60);
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} else {
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/* Only render the time on every second marker for normal dives */
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for (i = incr; i < maxtime; i += 2 * incr)
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plot_text(gc, &tro, i, 1, "%d", i/60);
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}
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/* Depth markers: every 30 ft or 10 m*/
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gc->leftx = 0; gc->rightx = 1.0;
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gc->topy = 0; gc->bottomy = maxdepth;
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switch (prefs.units.length) {
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case METERS: marker = 10000; break;
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case FEET: marker = 9144; break; /* 30 ft */
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}
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maxline = MAX(pi->maxdepth + marker, maxdepth * 2 / 3);
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set_source_rgba(gc, DEPTH_GRID);
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for (i = marker; i < maxline; i += marker) {
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move_to(gc, 0, i);
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line_to(gc, 1, i);
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}
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cairo_stroke(cr);
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gc->leftx = 0; gc->rightx = maxtime;
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/* Show mean depth */
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if (! gc->printer) {
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set_source_rgba(gc, MEAN_DEPTH);
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move_to(gc, 0, pi->meandepth);
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line_to(gc, pi->entry[pi->nr - 1].sec, pi->meandepth);
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cairo_stroke(cr);
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}
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/*
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* These are good for debugging text placement etc,
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* but not for actual display..
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*/
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if (0) {
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plot_smoothed_profile(gc, pi);
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plot_minmax_profile(gc, pi);
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}
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/* Do the depth profile for the neat fill */
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gc->topy = 0; gc->bottomy = maxdepth;
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cairo_pattern_t *pat;
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pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, 256.0 * plot_scale);
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pattern_add_color_stop_rgba (gc, pat, 1, DEPTH_BOTTOM);
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pattern_add_color_stop_rgba (gc, pat, 0, DEPTH_TOP);
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cairo_set_source(gc->cr, pat);
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cairo_pattern_destroy(pat);
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cairo_set_line_width_scaled(gc->cr, 2);
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entry = pi->entry;
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move_to(gc, 0, 0);
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for (i = 0; i < pi->nr; i++, entry++)
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line_to(gc, entry->sec, entry->depth);
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/* Show any ceiling we may have encountered */
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for (i = pi->nr - 1; i >= 0; i--, entry--) {
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if (entry->ndl) {
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/* non-zero NDL implies this is a safety stop, no ceiling */
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line_to(gc, entry->sec, 0);
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} else if (entry->stopdepth < entry->depth) {
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line_to(gc, entry->sec, entry->stopdepth);
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} else {
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line_to(gc, entry->sec, entry->depth);
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}
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}
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cairo_close_path(gc->cr);
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cairo_fill(gc->cr);
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/* if the user wants the deco ceiling more visible, do that here (this
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* basically draws over the background that we had allowed to shine
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* through so far) */
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if (prefs.profile_red_ceiling) {
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pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, 256.0 * plot_scale);
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pattern_add_color_stop_rgba (gc, pat, 0, CEILING_SHALLOW);
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pattern_add_color_stop_rgba (gc, pat, 1, CEILING_DEEP);
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cairo_set_source(gc->cr, pat);
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cairo_pattern_destroy(pat);
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entry = pi->entry;
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move_to(gc, 0, 0);
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for (i = 0; i < pi->nr; i++, entry++) {
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if (entry->ndl == 0 && entry->stopdepth) {
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if (entry->ndl == 0 && entry->stopdepth < entry->depth) {
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line_to(gc, entry->sec, entry->stopdepth);
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} else {
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line_to(gc, entry->sec, entry->depth);
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}
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} else {
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line_to(gc, entry->sec, 0);
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}
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}
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cairo_close_path(gc->cr);
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cairo_fill(gc->cr);
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}
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/* finally, plot the calculated ceiling over all this */
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if (prefs.profile_calc_ceiling) {
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pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, 256.0 * plot_scale);
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pattern_add_color_stop_rgba (gc, pat, 0, CALC_CEILING_SHALLOW);
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pattern_add_color_stop_rgba (gc, pat, 1, CALC_CEILING_DEEP);
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cairo_set_source(gc->cr, pat);
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cairo_pattern_destroy(pat);
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entry = pi->entry;
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move_to(gc, 0, 0);
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for (i = 0; i < pi->nr; i++, entry++) {
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if (entry->ceiling)
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line_to(gc, entry->sec, entry->ceiling);
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else
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line_to(gc, entry->sec, 0);
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}
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line_to(gc, (entry-1)->sec, 0); /* make sure we end at 0 */
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cairo_close_path(gc->cr);
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cairo_fill(gc->cr);
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}
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/* next show where we have been bad and crossed the dc's ceiling */
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pat = cairo_pattern_create_linear (0.0, 0.0, 0.0, 256.0 * plot_scale);
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pattern_add_color_stop_rgba (gc, pat, 0, CEILING_SHALLOW);
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pattern_add_color_stop_rgba (gc, pat, 1, CEILING_DEEP);
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cairo_set_source(gc->cr, pat);
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cairo_pattern_destroy(pat);
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entry = pi->entry;
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move_to(gc, 0, 0);
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for (i = 0; i < pi->nr; i++, entry++)
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line_to(gc, entry->sec, entry->depth);
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for (i = pi->nr - 1; i >= 0; i--, entry--) {
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if (entry->ndl == 0 && entry->stopdepth > entry->depth) {
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line_to(gc, entry->sec, entry->stopdepth);
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} else {
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line_to(gc, entry->sec, entry->depth);
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}
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}
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cairo_close_path(gc->cr);
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cairo_fill(gc->cr);
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/* Now do it again for the velocity colors */
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entry = pi->entry;
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for (i = 1; i < pi->nr; i++) {
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entry++;
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sec = entry->sec;
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/* we want to draw the segments in different colors
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* representing the vertical velocity, so we need to
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* chop this into short segments */
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depth = entry->depth;
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set_source_rgba(gc, VELOCITY_COLORS_START_IDX + entry->velocity);
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move_to(gc, entry[-1].sec, entry[-1].depth);
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line_to(gc, sec, depth);
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cairo_stroke(cr);
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}
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}
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static int setup_temperature_limits(struct graphics_context *gc, struct plot_info *pi)
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{
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