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graph: draw everything in one loop

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Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2008-06-12 16:14:13 +02:00
parent 4b6ba11360
commit 3fa072504f
1 changed files with 69 additions and 83 deletions
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152
widgets/graph.c
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@ -140,11 +140,10 @@ graph_draw(draw_context_t *ctx,
int used __attribute__ ((unused)),
void *p __attribute__ ((unused)))
{
int margin_top;
int y, tmp, cur_index, test_index;
int margin_top, y;
graph_data_t *d = w->widget->data;
area_t rectangle, pattern_area;
graph_t *graph, *graphtmp;
graph_t *graph;
if(!d->graphs)
return 0;
@ -179,89 +178,76 @@ graph_draw(draw_context_t *ctx,
else
pattern_area.x = rectangle.x;
pattern_area.y = rectangle.y - rectangle.height;
for(graph = d->graphs; graph; graph = graph->next)
{
if(graph->draw_style != Top_Style)
continue;
if(graph->vertical_gradient)
switch(graph->draw_style)
{
pattern_area.width = 0;
pattern_area.height = rectangle.height;
case Top_Style:
pattern_area.y = rectangle.y - rectangle.height;
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = rectangle.height;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
for(y = 0; y < d->size; y++)
{
/* reverse values (because drawing from top) */
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);
break;
case Bottom_Style:
pattern_area.y = rectangle.y;
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = - rectangle.height;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
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);
break;
case Line_Style:
pattern_area.y = rectangle.y;
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = -rectangle.height;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
draw_graph_line(ctx, rectangle, graph->lines, graph->index, d->grow, pattern_area,
&graph->color_start, graph->pcolor_center, graph->pcolor_end);
break;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
for(y = 0; y < d->size; y++)
{
/* reverse values (because drawing from top) */
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);
}
pattern_area.y = rectangle.y;
/* draw style = bottom */
for(graph = d->graphs; graph; graph = graph->next)
{
if(graph->draw_style != Bottom_Style)
continue;
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = - rectangle.height;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
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);
}
/* draw style = line */
for(graph = d->graphs; graph; graph = graph->next)
{
if(graph->draw_style != Line_Style)
continue;
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = -rectangle.height;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
draw_graph_line(ctx, rectangle, graph->lines, graph->index, d->grow, pattern_area,
&graph->color_start, graph->pcolor_center, graph->pcolor_end);
}
/* draw border (after line-drawing, what paints 0-values to the border) */
rectangle.x = w->area.x;