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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 Line_Style
} draw_style_t; } draw_style_t;
typedef struct typedef struct graph_t graph_t;
struct graph_t
{ {
/* general layout */ /** Grapht title of the data sections */
char *title;
char **data_title; /** graph_data_t title of the data sections */ /** Represents a full graph */
float *max_value; /** Represents a full graph */ float max_value;
int width; /** Width of the widget */ /** Scale the graph */
float height; /** Height of graph (0.0-1.0; 1.0 = height of bar) */ bool scale;
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 */
/* markers... */ /* markers... */
int *index; /** Index of current (new) value */ /** Index of current (new) value */
int *max_index; /** Index of the actual maximum value */ int index;
float *current_max; /** Pointer to current maximum value itself */ /** Index of the actual maximum value */
draw_style_t *draw_style; /** Draw style of according index */ 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 */ DO_SLIST(graph_t, graph, p_delete)
int data_items; /** Number of data-input items */
int **lines; /** Keeps the calculated values (line-length); */
float **values; /** Actual values */
bool *vertical_gradient; /** Create a vertical color gradient */ typedef struct
{
xcolor_t *color_start; /** Color of them */ /** Width of the widget */
xcolor_t **pcolor_center; /** Color at middle of graph */ int width;
xcolor_t **pcolor_end; /** Color at end of graph */ /** Height of graph (0.0-1.0; 1.0 = height of bar) */
float height;
int *draw_from; /** Preparation/tmp array for draw_graph(); */ /** Height of the innerbox in pixels */
int *draw_to; /** Preparation/tmp array for draw_graph(); */ 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; } graph_data_t;
/* the same as the progressbar_pcolor_set may use a common function */ /* 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); p_delete(ppcolor);
} }
static void static graph_t *
graph_data_add(graph_data_t *d, const char *new_data_title) 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 */ /* memory (re-)allocating + initialising */
p_realloc(&(d->values), d->data_items); graph->values = p_new(float, d->size);
d->values[d->data_items - 1] = 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); graph_list_append(&d->graphs, graph);
d->lines[d->data_items - 1] = p_new(int, d->size);
p_realloc(&(d->scale), d->data_items); return graph;
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;
} }
static int static int
@ -142,11 +140,12 @@ graph_draw(draw_context_t *ctx,
void *p __attribute__ ((unused))) void *p __attribute__ ((unused)))
{ {
int margin_top; 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; graph_data_t *d = w->widget->data;
area_t rectangle, pattern_area; area_t rectangle, pattern_area;
graph_t *graph, *graphtmp;
if(!d->data_items) if(!d->graphs)
return 0; return 0;
w->area.x = widget_calculate_offset(ctx->width, 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; pattern_area.y = rectangle.y - rectangle.height;
/* draw style = top */ for(graph = d->graphs; graph; graph = graph->next)
for(z = 0; z < d->data_items; z++)
{ {
if(d->draw_style[z] != Top_Style) if(graph->draw_style != Top_Style)
continue; continue;
if(d->vertical_gradient[z]) if(graph->vertical_gradient)
{ {
pattern_area.width = 0; pattern_area.width = 0;
pattern_area.height = rectangle.height; pattern_area.height = rectangle.height;
@ -197,112 +195,108 @@ graph_draw(draw_context_t *ctx,
pattern_area.height = 0; pattern_area.height = 0;
if(d->grow == Right) if(d->grow == Right)
pattern_area.width = -rectangle.width; pattern_area.width = - rectangle.width;
else else
pattern_area.width = rectangle.width; pattern_area.width = rectangle.width;
} }
cur_index = d->index[z]; cur_index = graph->index;
for(y = 0; y < d->size; y++) 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 * what shall be visible. Therefore find the next smaller value
* on this index (draw_from) - might be 0 (then draw from start) */ * 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) /* no need to compare with itself */
continue; if(graphtmp == graph || graphtmp->draw_style != Top_Style)
if (x == z) /* no need to compare with itself */
continue; continue;
/* current index's can be different (widget_tell might shift /* current index's can be different (widget_tell might shift
* some with a different frequenzy), so calculate * some with a different frequenzy), so calculate
* offset and compare accordingly finally */ * 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 */ test_index = d->size + test_index; /* text_index is minus, since < 0 */
else if(test_index >= d->size) else if(test_index >= d->size)
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 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]) if(graphtmp->lines[test_index] < graph->lines[cur_index])
tmp = d->lines[x][test_index]; tmp = MIN(graphtmp->lines[test_index], tmp);
} }
/* reverse values (because drawing from top) */ /* 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_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 */ if (--cur_index < 0) /* next index to compare to other values */
cur_index = d->size - 1; cur_index = d->size - 1;
} }
draw_graph(ctx, rectangle , d->draw_from, d->draw_to, d->index[z], d->grow, pattern_area, draw_graph(ctx, rectangle , d->draw_from, d->draw_to, graph->index, d->grow, pattern_area,
&(d->color_start[z]), d->pcolor_center[z], d->pcolor_end[z]); &graph->color_start, graph->pcolor_center, graph->pcolor_end);
} }
pattern_area.y = rectangle.y; pattern_area.y = rectangle.y;
/* draw style = bottom */ /* 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; continue;
if(d->vertical_gradient[z]) if(graph->vertical_gradient)
{ {
pattern_area.width = 0; pattern_area.width = 0;
pattern_area.height = -rectangle.height; pattern_area.height = - rectangle.height;
} }
else else
{ {
pattern_area.height = 0; pattern_area.height = 0;
if(d->grow == Right) if(d->grow == Right)
pattern_area.width = -rectangle.width; pattern_area.width = - rectangle.width;
else else
pattern_area.width = rectangle.width; pattern_area.width = rectangle.width;
} }
cur_index = d->index[z]; cur_index = graph->index;
for(y = 0; y < d->size; y++) 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) if(graph == graphtmp || graphtmp->draw_style != Bottom_Style)
continue;
if (x == z)
continue; continue;
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; test_index = d->size + test_index;
else if(test_index >= d->size) else if(test_index >= d->size)
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]) if(graphtmp->lines[test_index] < graph->lines[cur_index])
tmp = d->lines[x][test_index]; tmp = MIN(graphtmp->lines[test_index], tmp);
} }
d->draw_from[cur_index] = tmp; d->draw_from[cur_index] = tmp;
if (--cur_index < 0) if(--cur_index < 0)
cur_index = d->size - 1; cur_index = d->size - 1;
} }
draw_graph(ctx, rectangle, d->draw_from, d->lines[z], d->index[z], d->grow, pattern_area, draw_graph(ctx, rectangle, d->draw_from, graph->lines, graph->index, d->grow, pattern_area,
&(d->color_start[z]), d->pcolor_center[z], d->pcolor_end[z]); &graph->color_start, graph->pcolor_center, graph->pcolor_end);
} }
/* draw style = line */ /* 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; continue;
if(d->vertical_gradient[z]) if(graph->vertical_gradient)
{ {
pattern_area.width = 0; pattern_area.width = 0;
pattern_area.height = -rectangle.height; pattern_area.height = -rectangle.height;
@ -311,13 +305,13 @@ graph_draw(draw_context_t *ctx,
{ {
pattern_area.height = 0; pattern_area.height = 0;
if(d->grow == Right) if(d->grow == Right)
pattern_area.width = -rectangle.width; pattern_area.width = - rectangle.width;
else else
pattern_area.width = rectangle.width; pattern_area.width = rectangle.width;
} }
draw_graph_line(ctx, rectangle, d->lines[z], d->index[z], d->grow, pattern_area, draw_graph_line(ctx, rectangle, graph->lines, graph->index, d->grow, pattern_area,
&(d->color_start[z]), d->pcolor_center[z], d->pcolor_end[z]); &graph->color_start, graph->pcolor_center, graph->pcolor_end);
} }
/* draw border (after line-drawing, what paints 0-values to the border) */ /* 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_tell(widget_t *widget, const char *property, const char *new_value)
{ {
graph_data_t *d = widget->data; graph_data_t *d = widget->data;
int i, u, fi; graph_t *graph;
int i;
float value; float value;
char *title, *setting; char *title, *setting;
char *new_val; char *new_val;
bool found;
if(!new_value) if(!new_value)
return WIDGET_ERROR_NOVALUE; return WIDGET_ERROR_NOVALUE;
/* following properties need a datasection */ /* following properties need a datasection */
else if(!a_strcmp(property, "data") else if(!a_strcmp(property, "data")
|| !a_strcmp(property, "fg") || !a_strcmp(property, "fg")
@ -363,20 +356,12 @@ graph_tell(widget_t *widget, const char *property, const char *new_value)
p_delete(&new_val); p_delete(&new_val);
return WIDGET_ERROR_NOVALUE; return WIDGET_ERROR_NOVALUE;
} }
for(found = false, fi = 0; fi < d->data_items; fi++) for(graph = d->graphs; graph; graph = graph->next)
{ if(!a_strcmp(title, graph->title))
if(!a_strcmp(title, d->data_title[fi]))
{
found = true;
break; break;
}
}
/* no section found -> create one */ /* no section found -> create one */
if(!found) if(!graph)
{ graph = graph_data_add(d, title);
graph_data_add(d, title);
fi = d->data_items - 1;
}
/* change values accordingly... */ /* change values accordingly... */
if(!a_strcmp(property, "data")) if(!a_strcmp(property, "data"))
@ -384,72 +369,77 @@ graph_tell(widget_t *widget, const char *property, const char *new_value)
/* assign incoming value */ /* assign incoming value */
value = MAX(atof(setting), 0); value = MAX(atof(setting), 0);
if(++d->index[fi] >= d->size) /* cycle inside the array */ if(++graph->index >= d->size) /* cycle inside the array */
d->index[fi] = 0; 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]; graph->max_index = graph->index;
d->current_max[fi] = value; graph->current_max = value;
/* recalculate */ /* recalculate */
for (u = 0; u < d->size; u++) for (i = 0; i < d->size; i++)
d->lines[fi][u] = (int) (d->values[fi][u] * (d->box_height) / d->current_max[fi] + 0.5); 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 */ /* 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 */ /* find the new max */
for(u = 0; u < d->size; u++) for(i = 0; i < d->size; i++)
if(d->values[fi][u] > d->values[fi][d->max_index[fi]]) if(graph->values[i] > graph->values[graph->max_index])
d->max_index[fi] = u; 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 */ /* recalculate */
for(u = 0; u < d->size; u++) for(i = 0; i < d->size; i++)
d->lines[fi][u] = (int) (d->values[fi][u] * d->box_height / d->current_max[fi] + 0.5); graph->lines[i] = (int) (graph->values[i] * d->box_height
/ graph->current_max + 0.5);
} }
else 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 */ else /* scale option is false - limit to d->box_height */
{ {
if (value < d->max_value[fi]) if(value < graph->max_value)
d->lines[fi][d->index[fi]] = (int) (value * d->box_height / d->max_value[fi] + 0.5); graph->lines[graph->index] = (int) (value * d->box_height
/ graph->max_value + 0.5);
else else
d->lines[fi][d->index[fi]] = d->box_height; graph->lines[graph->index] = d->box_height;
} }
p_delete(&new_val); p_delete(&new_val);
return WIDGET_NOERROR; return WIDGET_NOERROR;
} }
else if(!a_strcmp(property, "fg")) 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")) 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")) 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")) 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")) else if(!a_strcmp(property, "scale"))
d->scale[fi] = a_strtobool(setting); graph->scale = a_strtobool(setting);
else if(!a_strcmp(property, "max_value")) else if(!a_strcmp(property, "max_value"))
{ {
d->max_value[fi] = atof(setting); graph->max_value = atof(setting);
d->current_max[fi] = d->max_value[fi]; graph->current_max = graph->max_value;
} }
else if(!a_strcmp(property, "draw_style")) else if(!a_strcmp(property, "draw_style"))
{ {
if(!a_strcmp(setting, "bottom")) if(!a_strcmp(setting, "bottom"))
d->draw_style[fi] = Bottom_Style; graph->draw_style = Bottom_Style;
else if(!a_strcmp(setting, "line")) else if(!a_strcmp(setting, "line"))
d->draw_style[fi] = Line_Style; graph->draw_style = Line_Style;
else if(!a_strcmp(setting, "top")) else if(!a_strcmp(setting, "top"))
d->draw_style[fi] = Top_Style; graph->draw_style = Top_Style;
else else
{ {
warn("'error changing property %s of widget %s, must be 'bottom', 'top' or 'line'", 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->width = atoi(new_value);
d->size = d->width - 2; d->size = d->width - 2;
/* re-allocate/initialise necessary values */ /* 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_realloc(&graph->values, d->size);
p_delete(&d->lines[i]); p_realloc(&graph->lines, d->size);
d->values[i] = p_new(float, d->size); p_clear(&graph->values, d->size);
d->lines[i] = p_new(int, d->size); p_clear(&graph->lines, d->size);
graph->index = 0;
d->index[i] = 0; graph->current_max = 0;
d->current_max[i] = 0; graph->max_index = 0;
d->max_index[i] = 0;
} }
} }
else if(!a_strcmp(property, "bg")) else if(!a_strcmp(property, "bg"))