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Fix markup drawing when font shadow enabled (fixes issue #709)

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This commit is contained in:
Chris Lee 2018-12-31 18:21:57 +01:00
parent cacd4b8dad
commit c76f056746
8 changed files with 85 additions and 35 deletions
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3
ChangeLog
View file

@ -1,6 +1,7 @@
2018-12-26 master
2018-12-31 master
- Fix spacing around icons in executor without text in vertical panels (issue #716)
- Fix Bug: Clock Only Updates Every Minute With Format %s (issue #724)
- Fix markup drawing when font shadow enabled (issue #709)
2018-08-05 16.6.1
- Fix packaging regression for debian (issue #715)

2
src/button/button.c
View file

@ -478,7 +478,7 @@ void draw_button(void *obj, cairo_t *c)
button->frontend->textx,
button->frontend->texty,
&button->backend->font_color,
panel_config.font_shadow);
panel_config.font_shadow ? layout : NULL);
g_object_unref(layout);
g_object_unref(context);

35
src/execplugin/execplugin.c
View file

@ -491,6 +491,18 @@ gboolean resize_execp(void *obj)
return resized;
}
PangoLayout *create_execp_text_layout(Execp *execp, PangoContext *context)
{
PangoLayout *layout = pango_layout_new(context);
pango_layout_set_font_description(layout, execp->backend->font_desc);
pango_layout_set_width(layout, (execp->frontend->textw + TINT2_PANGO_SLACK) * PANGO_SCALE);
pango_layout_set_height(layout, (execp->frontend->texth + TINT2_PANGO_SLACK) * PANGO_SCALE);
pango_layout_set_alignment(layout, execp->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
return layout;
}
void draw_execp(void *obj, cairo_t *c)
{
Execp *execp = (Execp *)obj;
@ -498,7 +510,8 @@ void draw_execp(void *obj, cairo_t *c)
PangoContext *context = pango_cairo_create_context(c);
pango_cairo_context_set_resolution(context, 96 * panel->scale);
PangoLayout *layout = pango_layout_new(context);
PangoLayout *layout = create_execp_text_layout(execp, context);
PangoLayout *shadow_layout = NULL;
if (execp->backend->has_icon && execp->backend->icon) {
imlib_context_set_image(execp->backend->icon);
@ -507,16 +520,18 @@ void draw_execp(void *obj, cairo_t *c)
}
// draw layout
pango_layout_set_font_description(layout, execp->backend->font_desc);
pango_layout_set_width(layout, (execp->frontend->textw + TINT2_PANGO_SLACK) * PANGO_SCALE);
pango_layout_set_height(layout, (execp->frontend->texth + TINT2_PANGO_SLACK) * PANGO_SCALE);
pango_layout_set_alignment(layout, execp->backend->centered ? PANGO_ALIGN_CENTER : PANGO_ALIGN_LEFT);
pango_layout_set_wrap(layout, PANGO_WRAP_WORD_CHAR);
pango_layout_set_ellipsize(layout, PANGO_ELLIPSIZE_NONE);
if (!execp->backend->has_markup)
if (!execp->backend->has_markup) {
pango_layout_set_text(layout, execp->backend->text, strlen(execp->backend->text));
else
} else {
pango_layout_set_markup(layout, execp->backend->text, strlen(execp->backend->text));
if (panel_config.font_shadow) {
shadow_layout = create_execp_text_layout(execp, context);
if (!layout_set_markup_strip_colors(shadow_layout, execp->backend->text)) {
g_object_unref(shadow_layout);
shadow_layout = NULL;
}
}
}
pango_cairo_update_layout(c, layout);
draw_text(layout,
@ -524,7 +539,7 @@ void draw_execp(void *obj, cairo_t *c)
execp->frontend->textx,
execp->frontend->texty,
&execp->backend->font_color,
panel_config.font_shadow);
shadow_layout);
g_object_unref(layout);
g_object_unref(context);

2
src/taskbar/task.c
View file

@ -497,7 +497,7 @@ void draw_task(void *obj, cairo_t *c)
task->_text_posy = (panel->g_task.area.height - task->_text_height) / 2.0;
Color *config_text = &panel->g_task.font[task->current_state];
draw_text(layout, c, panel->g_task.text_posx, task->_text_posy, config_text, panel->font_shadow);
draw_text(layout, c, panel->g_task.text_posx, task->_text_posy, config_text, panel->font_shadow ? layout : NULL);
g_object_unref(layout);
g_object_unref(context);

2
src/taskbar/taskbarname.c
View file

@ -215,7 +215,7 @@ void draw_taskbarname(void *obj, cairo_t *c)
cairo_set_source_rgba(c, config_text->rgb[0], config_text->rgb[1], config_text->rgb[2], config_text->alpha);
pango_cairo_update_layout(c, layout);
draw_text(layout, c, 0, taskbar_name->posy, config_text, ((Panel *)taskbar_name->area.panel)->font_shadow);
draw_text(layout, c, 0, taskbar_name->posy, config_text, ((Panel *)taskbar_name->area.panel)->font_shadow ? layout : NULL);
g_object_unref(layout);
g_object_unref(context);

4
src/util/area.c
View file

@ -1084,7 +1084,7 @@ void draw_text_area(Area *area,
pango_layout_set_font_description(layout, line1_font_desc);
pango_layout_set_text(layout, line1, strlen(line1));
pango_cairo_update_layout(c, layout);
draw_text(layout, c, (area->width - inner_w) / 2, line1_posy, color, ((Panel *)area->panel)->font_shadow);
draw_text(layout, c, (area->width - inner_w) / 2, line1_posy, color, ((Panel *)area->panel)->font_shadow ? layout : NULL);
}
if (line2 && line2[0]) {
@ -1092,7 +1092,7 @@ void draw_text_area(Area *area,
pango_layout_set_indent(layout, 0);
pango_layout_set_text(layout, line2, strlen(line2));
pango_cairo_update_layout(c, layout);
draw_text(layout, c, (area->width - inner_w) / 2, line2_posy, color, ((Panel *)area->panel)->font_shadow);
draw_text(layout, c, (area->width - inner_w) / 2, line2_posy, color, ((Panel *)area->panel)->font_shadow ? layout : NULL);
}
g_object_unref(layout);

69
src/util/common.c
View file

@ -724,27 +724,60 @@ void render_image(Drawable d, int x, int y)
XFreePixmap(server.display, pixmap);
}
void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, int font_shadow)
gboolean is_color_attribute(PangoAttribute *attr, gpointer user_data)
{
if (font_shadow) {
const int shadow_size = 3;
const double shadow_edge_alpha = 0.0;
int i, j;
for (i = -shadow_size; i <= shadow_size; i++) {
for (j = -shadow_size; j <= shadow_size; j++) {
cairo_set_source_rgba(c,
0.0,
0.0,
0.0,
1.0 -
(1.0 - shadow_edge_alpha) *
sqrt((i * i + j * j) / (double)(shadow_size * shadow_size)));
pango_cairo_update_layout(c, layout);
cairo_move_to(c, posx + i, posy + j);
pango_cairo_show_layout(c, layout);
}
return attr->klass->type == PANGO_ATTR_FOREGROUND ||
attr->klass->type == PANGO_ATTR_BACKGROUND ||
attr->klass->type == PANGO_ATTR_UNDERLINE_COLOR ||
attr->klass->type == PANGO_ATTR_STRIKETHROUGH_COLOR ||
attr->klass->type == PANGO_ATTR_FOREGROUND_ALPHA ||
attr->klass->type == PANGO_ATTR_BACKGROUND_ALPHA;
}
gboolean layout_set_markup_strip_colors(PangoLayout *layout, const char *markup)
{
PangoAttrList *attrs = NULL;
char *text = NULL;
GError *error = NULL;
if (!pango_parse_markup(markup, -1, 0, &attrs, &text, NULL, &error)) {
g_error_free(error);
return FALSE;
}
pango_layout_set_text(layout, text, -1);
g_free(text);
pango_attr_list_filter(attrs, is_color_attribute, NULL);
pango_layout_set_attributes(layout, attrs);
pango_attr_list_unref(attrs);
return TRUE;
}
void draw_shadow(cairo_t *c, int posx, int posy, PangoLayout *shadow_layout)
{
const int shadow_size = 3;
const double shadow_edge_alpha = 0.0;
int i, j;
for (i = -shadow_size; i <= shadow_size; i++) {
for (j = -shadow_size; j <= shadow_size; j++) {
cairo_set_source_rgba(c,
0.0,
0.0,
0.0,
1.0 -
(1.0 - shadow_edge_alpha) *
sqrt((i * i + j * j) / (double)(shadow_size * shadow_size)));
pango_cairo_update_layout(c, shadow_layout);
cairo_move_to(c, posx + i, posy + j);
pango_cairo_show_layout(c, shadow_layout);
}
}
}
void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, PangoLayout *shadow_layout)
{
if (shadow_layout)
draw_shadow(c, posx, posy, shadow_layout);
cairo_set_source_rgba(c, color->rgb[0], color->rgb[1], color->rgb[2], color->alpha);
pango_cairo_update_layout(c, layout);
cairo_move_to(c, posx, posy);

3
src/util/common.h
View file

@ -126,7 +126,8 @@ void get_text_size2(const PangoFontDescription *font,
gboolean markup,
double scale);
void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, int font_shadow);
gboolean layout_set_markup_strip_colors(PangoLayout *layout, const char *markup);
void draw_text(PangoLayout *layout, cairo_t *c, int posx, int posy, Color *color, PangoLayout *shadow_layout);
// Draws a rounded rectangle
void draw_rect(cairo_t *c, double x, double y, double w, double h, double r);