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new progressbar option for reversing the drawing

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inside a data section, with reverse=<boolean> it's possible to reverse the
drawing i.e instead of left to right, from right to left. etc.
This commit is contained in:
marco candrian 2008-03-02 13:13:12 +01:00 committed by Julien Danjou
parent 397aa33163
commit 6216d25bc6
5 changed files with 70 additions and 45 deletions
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1
common/configopts.c
View file

@ -197,6 +197,7 @@ cfg_opt_t widget_progressbar_data_opts[] =
CFG_STR((char *) "fg_end", (char *) NULL, CFGF_NONE),
CFG_STR((char *) "bg", (char *) NULL, CFGF_NONE),
CFG_STR((char *) "bordercolor", (char *) NULL, CFGF_NONE),
CFG_BOOL((char *) "reverse", cfg_false, CFGF_NONE),
CFG_AWESOME_END()
};
cfg_opt_t widget_progressbar_opts[] =

76
common/draw.c
View file

@ -213,40 +213,47 @@ draw_text(DrawCtx *ctx,
/** Setup color-source for cairo (gradient or mono)
* \param ctx Draw context
* \param x x-offset of widget
* \param x x-offset of pattern start
* \param y y-offset of widget
* \param width width in pixels
* \param color color to use from 0%
* \param width pattern width
* \param color color to use at start (x)
* \param pcolor_center color at 50% of width
* \param pcolor_end color at 100% of width
* \param pcolor_end color at pattern start (x) + pattern width (width)
* \return pat pattern or NULL; needs to get cairo_pattern_destroy()'ed;
*/
static cairo_pattern_t *
draw_setup_cairo_color_source(DrawCtx *ctx, int x, int y, int width,
XColor color, XColor *pcolor_center, XColor *pcolor_end)
XColor *pcolor, XColor *pcolor_center, XColor *pcolor_end)
{
cairo_pattern_t *pat = NULL;
if(pcolor_center || pcolor_end) /* draw a gradient */
/* no need for a real pattern on the next two: */
if(!pcolor_end && !pcolor_center)
cairo_set_source_rgb(ctx->cr, pcolor->red / 65535.0, pcolor->green / 65535.0, pcolor->blue / 65535.0);
else if(!pcolor && !pcolor_center)
cairo_set_source_rgb(ctx->cr, pcolor_end->red / 65535.0, pcolor_end->green / 65535.0, pcolor_end->blue / 65535.0);
else
{
pat = cairo_pattern_create_linear(x, y, x + width, y);
cairo_pattern_add_color_stop_rgb(pat, 0, color.red / 65535.0,
color.green / 65535.0, color.blue / 65535.0);
if(pcolor_center)
cairo_pattern_add_color_stop_rgb(pat, 0.5, pcolor_center->red / 65535.0,
pcolor_center->green / 65535.0, pcolor_center->blue / 65535.0);
/* use pcolor as pcolor_end (and vice versa) when one is not set */
if(pcolor)
cairo_pattern_add_color_stop_rgb(pat, 0, pcolor->red / 65535.0,
pcolor->green / 65535.0, pcolor->blue / 65535.0);
else
cairo_pattern_add_color_stop_rgb(pat, 0, pcolor_end->red / 65535.0,
pcolor_end->green / 65535.0, pcolor_end->blue / 65535.0);
if(pcolor_end)
cairo_pattern_add_color_stop_rgb(pat, 1, pcolor_end->red / 65535.0,
pcolor_end->green / 65535.0, pcolor_end->blue / 65535.0);
else
cairo_pattern_add_color_stop_rgb(pat, 1, color.red / 65535.0,
color.green / 65535.0, color.blue / 65535.0);
cairo_pattern_add_color_stop_rgb(pat, 1, pcolor->red / 65535.0,
pcolor->green / 65535.0, pcolor->blue / 65535.0);
if(pcolor_center)
cairo_pattern_add_color_stop_rgb(pat, 0.5, pcolor_center->red / 65535.0,
pcolor_center->green / 65535.0, pcolor_center->blue / 65535.0);
cairo_set_source(ctx->cr, pat);
}
else
cairo_set_source_rgb(ctx->cr, color.red / 65535.0, color.green / 65535.0, color.blue / 65535.0);
return pat;
}
@ -276,23 +283,24 @@ draw_rectangle(DrawCtx *ctx, Area geometry, Bool filled, XColor color)
/** Draw rectangle with gradient colors
* \param ctx Draw context
* \param geometry geometry
* \param fullwidth width of full bar in pixels
* \param filled filled rectangle?
* \param color color to use from 0%
* \param pcolor_center color at 50%
* \param pcolor_end color at 100%
* \param pattern_start_x pattern start x coord
* \param pattern_width pattern width
* \param color color to use at start
* \param pcolor_center color at 50% of width
* \param pcolor_end color at pattern_start + pattern_width
*/
void
draw_rectangle_gradient(DrawCtx *ctx, Area geometry, int fullwidth, Bool filled,
XColor color, XColor *pcolor_center, XColor *pcolor_end)
draw_rectangle_gradient(DrawCtx *ctx, Area geometry, Bool filled, int pattern_start_x, int pattern_width,
XColor *pcolor, XColor *pcolor_center, XColor *pcolor_end)
{
cairo_pattern_t *pat;
cairo_set_antialias(ctx->cr, CAIRO_ANTIALIAS_NONE);
cairo_set_line_width(ctx->cr, 1.0);
pat = draw_setup_cairo_color_source(ctx, geometry.x, geometry.y, fullwidth,
color, pcolor_center, pcolor_end);
pat = draw_setup_cairo_color_source(ctx, pattern_start_x, geometry.y, pattern_width,
pcolor, pcolor_center, pcolor_end);
if(filled)
{
@ -329,17 +337,17 @@ draw_graph_setup(DrawCtx *ctx)
* \param from array of starting-point offsets to draw a graph-lines
* \param to array of end-point offsets to draw a graph-lines
* \param cur_index current position in data-array (cycles around)
* \param color color to use from 0%
* \param pcolor_center color at 50%
* \param pcolor_end color at 100%
* \param pcolor color at the left
* \param pcolor_center color in the center
* \param pcolor_end color at the right
*/
void
draw_graph(DrawCtx *ctx, int x, int y, int w, int *from, int *to, int cur_index,
XColor color, XColor *pcolor_center, XColor *pcolor_end)
XColor *pcolor, XColor *pcolor_center, XColor *pcolor_end)
{
int i;
cairo_pattern_t *pat;
pat = draw_setup_cairo_color_source(ctx, x, y, w, color, pcolor_center, pcolor_end);
pat = draw_setup_cairo_color_source(ctx, x, y, w, pcolor, pcolor_center, pcolor_end);
i = -1;
while(++i < w)
@ -365,19 +373,19 @@ draw_graph(DrawCtx *ctx, int x, int y, int w, int *from, int *to, int cur_index,
* \param w width in pixels
* \param to array of offsets to draw the line through...
* \param cur_index current position in data-array (cycles around)
* \param color color to use from 0%
* \param pcolor_center color at 50%
* \param pcolor_end color at 100%
* \param pcolor color at the left
* \param pcolor_center color in the center
* \param pcolor_end color at the right
*/
void
draw_graph_line(DrawCtx *ctx, int x, int y, int w, int *to, int cur_index,
XColor color, XColor *pcolor_center, XColor *pcolor_end)
XColor *pcolor, XColor *pcolor_center, XColor *pcolor_end)
{
int i;
int flag = 0; /* used to prevent drawing a line from 0 to 0 values */
cairo_pattern_t *pat;
pat = draw_setup_cairo_color_source(ctx, x, y, w, color, pcolor_center, pcolor_end);
pat = draw_setup_cairo_color_source(ctx, x, y, w, pcolor, pcolor_center, pcolor_end);
/* x-1 (on the border), paints *from* the last point (... not included itself) */
/* makes sense when you assume there is already some line drawn to it. */

6
common/draw.h
View file

@ -96,11 +96,11 @@ void draw_context_delete(DrawCtx *);
void draw_text(DrawCtx *, Area, Alignment, int, XftFont *, char *, int, XColor fg, XColor bg);
void draw_rectangle(DrawCtx *, Area, Bool, XColor);
void draw_rectangle_gradient(DrawCtx *, Area, int, Bool, XColor, XColor *, XColor *);
void draw_rectangle_gradient(DrawCtx *, Area, Bool, int, int, XColor *, XColor *, XColor *);
void draw_graph_setup(DrawCtx *);
void draw_graph(DrawCtx *, int, int, int, int *, int *, int, XColor, XColor *, XColor *);
void draw_graph_line(DrawCtx *, int, int, int, int *, int, XColor, XColor *, XColor *);
void draw_graph(DrawCtx *, int, int, int, int *, int *, int, XColor *, XColor *, XColor *);
void draw_graph_line(DrawCtx *, int, int, int, int *, int, XColor *, XColor *, XColor *);
void draw_circle(DrawCtx *, int, int, int, Bool, XColor);
void draw_image(DrawCtx *, int, int, int, const char *);
void draw_image_from_argb_data(DrawCtx *, int, int, int, int, int, unsigned char *);

6
widgets/graph.c
View file

@ -135,7 +135,7 @@ graph_draw(Widget *widget, DrawCtx *ctx, int offset,
draw_graph(ctx,
left_offset + 2, margin_top + d->box_height + 1,
d->size, d->draw_from, d->draw_to, *(d->filltop_index[z]),
d->filltop_color[z], d->filltop_pcolor_center[z], d->filltop_pcolor_end[z]);
&(d->filltop_color[z]), d->filltop_pcolor_center[z], d->filltop_pcolor_end[z]);
}
/* draw style = bottom */
@ -157,7 +157,7 @@ graph_draw(Widget *widget, DrawCtx *ctx, int offset,
draw_graph(ctx,
left_offset + 2, margin_top + d->box_height + 1,
d->size, d->draw_from, d->fillbottom[z], *(d->fillbottom_index[z]),
d->fillbottom_color[z], d->fillbottom_pcolor_center[z], d->fillbottom_pcolor_end[z]);
&(d->fillbottom_color[z]), d->fillbottom_pcolor_center[z], d->fillbottom_pcolor_end[z]);
}
/* draw style = line */
@ -166,7 +166,7 @@ graph_draw(Widget *widget, DrawCtx *ctx, int offset,
draw_graph_line(ctx,
left_offset + 2, margin_top + d->box_height + 1,
d->size, d->drawline[z], *(d->drawline_index[z]),
d->drawline_color[z], d->drawline_pcolor_center[z], d->drawline_pcolor_end[z]);
&(d->drawline_color[z]), d->drawline_pcolor_center[z], d->drawline_pcolor_end[z]);
}
widget->area.width = d->width;

26
widgets/progressbar.c
View file

@ -38,6 +38,8 @@ typedef struct
int padding;
/** Pixel between data_items (bars) */
int gap;
/** reverse drawing */
Bool *reverse;
/** Number of data_items (bars) */
int data_items;
/** Height 0-1, where 1 is height of statusbar */
@ -83,7 +85,10 @@ progressbar_draw(Widget *widget, DrawCtx *ctx, int offset,
for(i = 0; i < d->data_items; i++)
{
pwidth = (int) d->percent[i] ? ((width - 2) * d->percent[i]) / 100 : 0;
if(d->reverse[i])
pwidth = (int)(((width - 2) * (100 - d->percent[i])) / 100);
else
pwidth = (int)(((width - 2) * d->percent[i]) / 100);
rectangle.x = left_offset;
rectangle.y = margin_top;
@ -92,14 +97,17 @@ progressbar_draw(Widget *widget, DrawCtx *ctx, int offset,
draw_rectangle(ctx, rectangle, False, d->bordercolor[i]);
if(pwidth > 0)
if(pwidth > 0) /* filled area */
{
rectangle.x = left_offset + 1;
rectangle.y = margin_top + 1;
rectangle.width = pwidth;
rectangle.height = pb_height - 2;
draw_rectangle_gradient(ctx, rectangle, width - 2, True, d->fg[i],
d->pfg_center[i], d->pfg_end[i]);
if(d->reverse[i])
draw_rectangle(ctx, rectangle, True, d->bg[i]);
else
draw_rectangle_gradient(ctx, rectangle, True, left_offset + 1, width - 2,
&(d->fg[i]), d->pfg_center[i], d->pfg_end[i]);
}
if(width - 2 - pwidth > 0) /* not filled area */
@ -108,7 +116,11 @@ progressbar_draw(Widget *widget, DrawCtx *ctx, int offset,
rectangle.y = margin_top + 1;
rectangle.width = width - 2 - pwidth;
rectangle.height = pb_height - 2;
draw_rectangle(ctx, rectangle, True, d->bg[i]);
if(d->reverse[i])
draw_rectangle_gradient(ctx, rectangle, True, left_offset + 1, width - 2,
d->pfg_end[i], d->pfg_center[i], &(d->fg[i]));
else
draw_rectangle(ctx, rectangle, True, d->bg[i]);
}
margin_top += (pb_height + d->gap);
@ -322,6 +334,7 @@ progressbar_new(Statusbar *statusbar, cfg_t *config)
d->bg = p_new(XColor, d->data_items);
d->bordercolor = p_new(XColor, d->data_items);
d->percent = p_new(int, d->data_items);
d->reverse = p_new(Bool, d->data_items);
d->data_title = p_new(char *, d->data_items);
for(i = 0; i < d->data_items; i++)
@ -330,6 +343,9 @@ progressbar_new(Statusbar *statusbar, cfg_t *config)
d->data_title[i] = a_strdup(cfg_title(cfg));
if(!(d->reverse[i] = cfg_getbool(cfg, "reverse")))
d->reverse[i] = False;
if((color = cfg_getstr(cfg, "fg")))
draw_color_new(globalconf.display, phys_screen, color, &d->fg[i]);
else