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[graph] Rewrite with linked list 

Signed-off-by: Julien Danjou <julien@danjou.info>
This commit is contained in:
Julien Danjou 2008-06-11 17:27:26 +02:00
parent ebb25ba2d4
commit b6eea1788f
1 changed files with 156 additions and 167 deletions
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323
widgets/graph.c
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@ -33,41 +33,66 @@ typedef enum
Line_Style
} draw_style_t;
typedef struct
typedef struct graph_t graph_t;
struct graph_t
{
/* general layout */
char **data_title; /** graph_data_t title of the data sections */
float *max_value; /** Represents a full graph */
int width; /** Width of the widget */
float height; /** Height of graph (0.0-1.0; 1.0 = height of bar) */
int box_height; /** Height of the innerbox in pixels */
int size; /** Size of lines-array (also innerbox-lenght) */
xcolor_t bg; /** Background color */
xcolor_t bordercolor; /** Border color */
position_t grow; /** grow: Left or Right */
bool *scale; /** Scale the graph */
/** Grapht title of the data sections */
char *title;
/** Represents a full graph */
float max_value;
/** Scale the graph */
bool scale;
/* markers... */
int *index; /** Index of current (new) value */
int *max_index; /** Index of the actual maximum value */
float *current_max; /** Pointer to current maximum value itself */
draw_style_t *draw_style; /** Draw style of according index */
/** Index of current (new) value */
int index;
/** Index of the actual maximum value */
int max_index;
/** Pointer to current maximum value itself */
float current_max;
/** Draw style of according index */
draw_style_t draw_style;
/** Keeps the calculated values (line-length); */
int *lines;
/** Actual values */
float *values;
/** Color of them */
xcolor_t color_start;
/** Color at middle of graph */
xcolor_t *pcolor_center;
/** Color at end of graph */
xcolor_t *pcolor_end;
/** Create a vertical color gradient */
bool vertical_gradient;
/** Next and previous graph */
graph_t *next, *prev;
};
/* all data is stored here */
int data_items; /** Number of data-input items */
int **lines; /** Keeps the calculated values (line-length); */
float **values; /** Actual values */
DO_SLIST(graph_t, graph, p_delete)
bool *vertical_gradient; /** Create a vertical color gradient */
xcolor_t *color_start; /** Color of them */
xcolor_t **pcolor_center; /** Color at middle of graph */
xcolor_t **pcolor_end; /** Color at end of graph */
int *draw_from; /** Preparation/tmp array for draw_graph(); */
int *draw_to; /** Preparation/tmp array for draw_graph(); */
typedef struct
{
/** Width of the widget */
int width;
/** Height of graph (0.0-1.0; 1.0 = height of bar) */
float height;
/** Height of the innerbox in pixels */
int box_height;
/** Size of lines-array (also innerbox-length) */
int size;
/** Background color */
xcolor_t bg;
/** Border color */
xcolor_t bordercolor;
/** Grow: Left or Right */
position_t grow;
/** Preparation/tmp array for draw_graph(); */
int *draw_from;
/** Preparation/tmp array for draw_graph(); */
int *draw_to;
/** Graph list */
graph_t *graphs;
} graph_data_t;
/* the same as the progressbar_pcolor_set may use a common function */
@ -87,50 +112,23 @@ graph_pcolor_set(xcolor_t **ppcolor, char *new_color)
p_delete(ppcolor);
}
static void
static graph_t *
graph_data_add(graph_data_t *d, const char *new_data_title)
{
d->data_items++;
graph_t *graph = p_new(graph_t, 1);
/* memory (re-)allocating + initialising */
p_realloc(&(d->values), d->data_items);
d->values[d->data_items - 1] = p_new(float, d->size);
graph->values = p_new(float, d->size);
graph->lines = p_new(int, d->size);
graph->max_value = 100.0;
graph->title = a_strdup(new_data_title);
graph->color_start = globalconf.colors.fg;
graph->vertical_gradient = true;
graph->draw_style = Bottom_Style;
p_realloc(&(d->lines), d->data_items);
d->lines[d->data_items - 1] = p_new(int, d->size);
graph_list_append(&d->graphs, graph);
p_realloc(&(d->scale), d->data_items);
d->scale[d->data_items - 1] = false;
p_realloc(&(d->index), d->data_items);
d->index[d->data_items - 1] = 0;
p_realloc(&(d->max_index), d->data_items);
d->max_index[d->data_items - 1] = 0;
p_realloc(&(d->current_max), d->data_items);
d->current_max[d->data_items - 1] = 0;
p_realloc(&(d->max_value), d->data_items);
d->max_value[d->data_items - 1] = 100.0;
p_realloc(&(d->data_title), d->data_items);
d->data_title[d->data_items - 1] = a_strdup(new_data_title);
p_realloc(&(d->color_start), d->data_items);
d->color_start[d->data_items - 1] = globalconf.colors.fg;
p_realloc(&(d->pcolor_center), d->data_items);
d->pcolor_center[d->data_items - 1] = NULL;
p_realloc(&(d->pcolor_end), d->data_items);
d->pcolor_end[d->data_items - 1] = NULL;
p_realloc(&(d->vertical_gradient), d->data_items);
d->vertical_gradient[d->data_items - 1] = true;
p_realloc(&(d->draw_style), d->data_items);
d->draw_style[d->data_items - 1] = Bottom_Style;
return graph;
}
static int
@ -142,11 +140,12 @@ graph_draw(draw_context_t *ctx,
void *p __attribute__ ((unused)))
{
int margin_top;
int z, y, x, tmp, cur_index, test_index;
int y, tmp, cur_index, test_index;
graph_data_t *d = w->widget->data;
area_t rectangle, pattern_area;
graph_t *graph, *graphtmp;
if(!d->data_items)
if(!d->graphs)
return 0;
w->area.x = widget_calculate_offset(ctx->width,
@ -181,13 +180,12 @@ graph_draw(draw_context_t *ctx,
pattern_area.y = rectangle.y - rectangle.height;
/* draw style = top */
for(z = 0; z < d->data_items; z++)
for(graph = d->graphs; graph; graph = graph->next)
{
if(d->draw_style[z] != Top_Style)
if(graph->draw_style != Top_Style)
continue;
if(d->vertical_gradient[z])
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = rectangle.height;
@ -197,112 +195,108 @@ graph_draw(draw_context_t *ctx,
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = -rectangle.width;
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
cur_index = d->index[z];
cur_index = graph->index;
for(y = 0; y < d->size; y++)
{
/* draw this filltop data thing [z]. But figure out the part
/* 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) */
for(tmp = 0, x = 0; x < d->data_items; x++)
tmp = 0;
for(graphtmp = d->graphs; graphtmp; graphtmp = graphtmp->next)
{
if(d->draw_style[x] != Top_Style)
continue;
if (x == z) /* no need to compare with itself */
/* 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 + (d->index[x] - d->index[z]);
test_index = cur_index + (graphtmp->index - graph->index);
if (test_index < 0)
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;
/* ... (test_)index to test for a smaller value found. */
/* if such a smaller value (to not overdraw!) is there, store into 'tmp' */
if(d->lines[x][test_index] > tmp && d->lines[x][test_index] < d->lines[z][cur_index])
tmp = d->lines[x][test_index];
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 - d->lines[z][cur_index]; /* i.e. on full graph -> 0 = bottom */
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;
}
draw_graph(ctx, rectangle , d->draw_from, d->draw_to, d->index[z], d->grow, pattern_area,
&(d->color_start[z]), d->pcolor_center[z], d->pcolor_end[z]);
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(z = 0; z < d->data_items; z++)
for(graph = d->graphs; graph; graph = graph->next)
{
if(d->draw_style[z] != Bottom_Style)
if(graph->draw_style != Bottom_Style)
continue;
if(d->vertical_gradient[z])
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = -rectangle.height;
pattern_area.height = - rectangle.height;
}
else
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = -rectangle.width;
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
cur_index = d->index[z];
cur_index = graph->index;
for(y = 0; y < d->size; y++)
{
for(tmp = 0, x = 0; x < d->data_items; x++)
tmp = 0;
for(graphtmp = d->graphs; graphtmp; graphtmp = graphtmp->next)
{
if(d->draw_style[x] != Bottom_Style)
continue;
if (x == z)
if(graph == graphtmp || graphtmp->draw_style != Bottom_Style)
continue;
test_index = cur_index + (d->index[x] - d->index[z]);
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(d->lines[x][test_index] > tmp && d->lines[x][test_index] < d->lines[z][cur_index])
tmp = d->lines[x][test_index];
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)
if(--cur_index < 0)
cur_index = d->size - 1;
}
draw_graph(ctx, rectangle, d->draw_from, d->lines[z], d->index[z], d->grow, pattern_area,
&(d->color_start[z]), d->pcolor_center[z], d->pcolor_end[z]);
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(z = 0; z < d->data_items; z++)
for(graph = d->graphs; graph; graph = graph->next)
{
if(d->draw_style[z] != Line_Style)
if(graph->draw_style != Line_Style)
continue;
if(d->vertical_gradient[z])
if(graph->vertical_gradient)
{
pattern_area.width = 0;
pattern_area.height = -rectangle.height;
@ -311,13 +305,13 @@ graph_draw(draw_context_t *ctx,
{
pattern_area.height = 0;
if(d->grow == Right)
pattern_area.width = -rectangle.width;
pattern_area.width = - rectangle.width;
else
pattern_area.width = rectangle.width;
}
draw_graph_line(ctx, rectangle, d->lines[z], d->index[z], d->grow, pattern_area,
&(d->color_start[z]), d->pcolor_center[z], d->pcolor_end[z]);
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) */
@ -336,15 +330,14 @@ static widget_tell_status_t
graph_tell(widget_t *widget, const char *property, const char *new_value)
{
graph_data_t *d = widget->data;
int i, u, fi;
graph_t *graph;
int i;
float value;
char *title, *setting;
char *new_val;
bool found;
if(!new_value)
return WIDGET_ERROR_NOVALUE;
/* following properties need a datasection */
else if(!a_strcmp(property, "data")
|| !a_strcmp(property, "fg")
@ -363,20 +356,12 @@ graph_tell(widget_t *widget, const char *property, const char *new_value)
p_delete(&new_val);
return WIDGET_ERROR_NOVALUE;
}
for(found = false, fi = 0; fi < d->data_items; fi++)
{
if(!a_strcmp(title, d->data_title[fi]))
{
found = true;
for(graph = d->graphs; graph; graph = graph->next)
if(!a_strcmp(title, graph->title))
break;
}
}
/* no section found -> create one */
if(!found)
{
graph_data_add(d, title);
fi = d->data_items - 1;
}
if(!graph)
graph = graph_data_add(d, title);
/* change values accordingly... */
if(!a_strcmp(property, "data"))
@ -384,72 +369,77 @@ graph_tell(widget_t *widget, const char *property, const char *new_value)
/* assign incoming value */
value = MAX(atof(setting), 0);
if(++d->index[fi] >= d->size) /* cycle inside the array */
d->index[fi] = 0;
if(++graph->index >= d->size) /* cycle inside the array */
graph->index = 0;
if(d->scale[fi]) /* scale option is true */
if(graph->scale) /* scale option is true */
{
d->values[fi][d->index[fi]] = value;
graph->values[graph->index] = value;
if(value > d->current_max[fi]) /* a new maximum value found */
if(value > graph->current_max) /* a new maximum value found */
{
d->max_index[fi] = d->index[fi];
d->current_max[fi] = value;
graph->max_index = graph->index;
graph->current_max = value;
/* recalculate */
for (u = 0; u < d->size; u++)
d->lines[fi][u] = (int) (d->values[fi][u] * (d->box_height) / d->current_max[fi] + 0.5);
for (i = 0; i < d->size; i++)
graph->lines[i] = (int) (graph->values[i] * d->box_height
/ graph->current_max + 0.5);
}
/* old max_index reached + current_max > normal, re-check/generate */
else if(d->max_index[fi] == d->index[fi] && d->current_max[fi] > d->max_value[fi])
else if(graph->max_index == graph->index
&& graph->current_max > graph->max_value)
{
/* find the new max */
for(u = 0; u < d->size; u++)
if(d->values[fi][u] > d->values[fi][d->max_index[fi]])
d->max_index[fi] = u;
for(i = 0; i < d->size; i++)
if(graph->values[i] > graph->values[graph->max_index])
graph->max_index = i;
d->current_max[fi] = MAX(d->values[fi][d->max_index[fi]], d->max_value[fi]);
graph->current_max = MAX(graph->values[graph->max_index], graph->max_value);
/* recalculate */
for(u = 0; u < d->size; u++)
d->lines[fi][u] = (int) (d->values[fi][u] * d->box_height / d->current_max[fi] + 0.5);
for(i = 0; i < d->size; i++)
graph->lines[i] = (int) (graph->values[i] * d->box_height
/ graph->current_max + 0.5);
}
else
d->lines[fi][d->index[fi]] = (int) (value * d->box_height / d->current_max[fi] + 0.5);
graph->lines[graph->index] = (int) (value * d->box_height
/ graph->current_max + 0.5);
}
else /* scale option is false - limit to d->box_height */
{
if (value < d->max_value[fi])
d->lines[fi][d->index[fi]] = (int) (value * d->box_height / d->max_value[fi] + 0.5);
if(value < graph->max_value)
graph->lines[graph->index] = (int) (value * d->box_height
/ graph->max_value + 0.5);
else
d->lines[fi][d->index[fi]] = d->box_height;
graph->lines[graph->index] = d->box_height;
}
p_delete(&new_val);
return WIDGET_NOERROR;
}
else if(!a_strcmp(property, "fg"))
xcolor_new(globalconf.connection, globalconf.default_screen, setting, &(d->color_start[fi]));
xcolor_new(globalconf.connection, globalconf.default_screen, setting, &graph->color_start);
else if(!a_strcmp(property, "fg_center"))
graph_pcolor_set(&(d->pcolor_center[fi]), setting);
graph_pcolor_set(&graph->pcolor_center, setting);
else if(!a_strcmp(property, "fg_end"))
graph_pcolor_set(&(d->pcolor_end[fi]), setting);
graph_pcolor_set(&graph->pcolor_end, setting);
else if(!a_strcmp(property, "vertical_gradient"))
d->vertical_gradient[fi] = a_strtobool(setting);
graph->vertical_gradient = a_strtobool(setting);
else if(!a_strcmp(property, "scale"))
d->scale[fi] = a_strtobool(setting);
graph->scale = a_strtobool(setting);
else if(!a_strcmp(property, "max_value"))
{
d->max_value[fi] = atof(setting);
d->current_max[fi] = d->max_value[fi];
graph->max_value = atof(setting);
graph->current_max = graph->max_value;
}
else if(!a_strcmp(property, "draw_style"))
{
if(!a_strcmp(setting, "bottom"))
d->draw_style[fi] = Bottom_Style;
graph->draw_style = Bottom_Style;
else if(!a_strcmp(setting, "line"))
d->draw_style[fi] = Line_Style;
graph->draw_style = Line_Style;
else if(!a_strcmp(setting, "top"))
d->draw_style[fi] = Top_Style;
graph->draw_style = Top_Style;
else
{
warn("'error changing property %s of widget %s, must be 'bottom', 'top' or 'line'",
@ -468,16 +458,15 @@ graph_tell(widget_t *widget, const char *property, const char *new_value)
d->width = atoi(new_value);
d->size = d->width - 2;
/* re-allocate/initialise necessary values */
for(i = 0; i < d->data_items; i++)
for(graph = d->graphs; graph; graph = graph->next)
{
p_delete(&d->values[i]);
p_delete(&d->lines[i]);
d->values[i] = p_new(float, d->size);
d->lines[i] = p_new(int, d->size);
d->index[i] = 0;
d->current_max[i] = 0;
d->max_index[i] = 0;
p_realloc(&graph->values, d->size);
p_realloc(&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;
}
}
else if(!a_strcmp(property, "bg"))