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graph: allow graphs to overlap 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2008-06-12 16:10:12 +02:00
parent 12d4c66771
commit 4b6ba11360
1 changed files with 7 additions and 60 deletions
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67
widgets/graph.c
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@ -30,8 +30,8 @@ extern awesome_t globalconf;
typedef enum
{
Top_Style = 1,
Bottom_Style,
Bottom_Style = 0,
Top_Style,
Line_Style
} draw_style_t;
@ -126,7 +126,6 @@ graph_data_add(graph_data_t *d, const char *new_data_title)
graph->title = a_strdup(new_data_title);
graph->color_start = globalconf.colors.fg;
graph->vertical_gradient = true;
graph->draw_style = Bottom_Style;
graph_list_append(&d->graphs, graph);
@ -202,40 +201,11 @@ graph_draw(draw_context_t *ctx,
pattern_area.width = rectangle.width;
}
cur_index = graph->index;
for(y = 0; y < d->size; y++)
{
/* draw this filltop data thing. But figure out the part
* what shall be visible. Therefore find the next smaller value
* on this index (draw_from) - might be 0 (then draw from start) */
tmp = 0;
for(graphtmp = d->graphs; graphtmp; graphtmp = graphtmp->next)
{
/* no need to compare with itself */
if(graphtmp == graph || graphtmp->draw_style != Top_Style)
continue;
/* current index's can be different (widget_tell might shift
* some with a different frequenzy), so calculate
* offset and compare accordingly finally */
test_index = cur_index + (graphtmp->index - graph->index);
if(test_index < 0)
test_index = d->size + test_index; /* text_index is minus, since < 0 */
else if(test_index >= d->size)
test_index -= d->size;
/* if such a smaller value (to not overdraw!) is there, store into 'tmp' */
if(graphtmp->lines[test_index] < graph->lines[cur_index])
tmp = MIN(graphtmp->lines[test_index], tmp);
}
/* reverse values (because drawing from top) */
d->draw_from[cur_index] = d->box_height - tmp; /* i.e. no smaller value -> from top of box */
d->draw_to[cur_index] = d->box_height - graph->lines[cur_index]; /* i.e. on full graph -> 0 = bottom */
if (--cur_index < 0) /* next index to compare to other values */
cur_index = d->size - 1;
d->draw_from[y] = d->box_height; /* i.e. no smaller value -> from top of box */
d->draw_to[y] = d->box_height - graph->lines[y]; /* i.e. on full graph -> 0 = bottom */
}
draw_graph(ctx, rectangle , d->draw_from, d->draw_to, graph->index, d->grow, pattern_area,
&graph->color_start, graph->pcolor_center, graph->pcolor_end);
@ -264,30 +234,7 @@ graph_draw(draw_context_t *ctx,
pattern_area.width = rectangle.width;
}
cur_index = graph->index;
for(y = 0; y < d->size; y++)
{
tmp = 0;
for(graphtmp = d->graphs; graphtmp; graphtmp = graphtmp->next)
{
if(graph == graphtmp || graphtmp->draw_style != Bottom_Style)
continue;
test_index = cur_index + (graphtmp->index - graph->index);
if (test_index < 0)
test_index = d->size + test_index;
else if(test_index >= d->size)
test_index -= d->size;
if(graphtmp->lines[test_index] < graph->lines[cur_index])
tmp = MIN(graphtmp->lines[test_index], tmp);
}
d->draw_from[cur_index] = tmp;
if(--cur_index < 0)
cur_index = d->size - 1;
}
p_clear(d->draw_from, d->size);
draw_graph(ctx, rectangle, d->draw_from, graph->lines, graph->index, d->grow, pattern_area,
&graph->color_start, graph->pcolor_center, graph->pcolor_end);
}
@ -460,8 +407,8 @@ graph_tell(widget_t *widget, const char *property, const char *new_value)
{
p_realloc(&graph->values, d->size);
p_realloc(&graph->lines, d->size);
p_clear(&graph->values, d->size);
p_clear(&graph->lines, d->size);
p_clear(graph->values, d->size);
p_clear(graph->lines, d->size);
graph->index = 0;
graph->current_max = 0;
graph->max_index = 0;