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Implement built-in clickable menu rendering
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Add menu button drawing function.
Update layout calculations for menu height.
Integrate menu rendering into notification display.

Signed-off-by: LI Qingwu <[email protected]>
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@Qingwu-Li
Qingwu-Li committed Feb 8, 2025
1 parent d7719c1 commit 1c3052b
Showing 1 changed file with 173 additions and 8 deletions.
181 changes: 173 additions & 8 deletions src/draw.c
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
#include "settings.h"
#include "utils.h"
#include "icon-lookup.h"
#include "menu.h"

struct colored_layout {
PangoLayout *l;
Expand All @@ -36,6 +37,11 @@ window win;

PangoFontDescription *pango_fdesc;

static int calculate_menu_height(const struct colored_layout *cl);
static int calculate_max_button_width(const struct colored_layout *cl);
static int calculate_menu_per_row(const struct colored_layout *cl);
static int calculate_menu_rows(const struct colored_layout *cl);

// NOTE: Saves some characters
#define COLOR(cl, field) (cl)->n->colors.field

Expand Down Expand Up @@ -233,6 +239,13 @@ static bool have_progress_bar(const struct colored_layout *cl)
!cl->is_xmore);
}

static bool have_built_in_menu(const struct colored_layout *cl)
{
return (g_hash_table_size(cl->n->actions)>0 &&
settings.built_in_menu == true &&
!cl->is_xmore);
}

static void get_text_size(PangoLayout *l, int *w, int *h, double scale) {
pango_layout_get_pixel_size(l, w, h);
// scale the size down, because it may be rendered at higher DPI
Expand Down Expand Up @@ -321,6 +334,8 @@ static struct dimensions calculate_notification_dimensions(struct colored_layout
if (have_progress_bar(cl))
dim.w = MAX(settings.progress_bar_min_width, dim.w);

dim.h += calculate_menu_height(cl);

dim.h = MAX(settings.height.min, dim.h);
dim.h = MIN(settings.height.max, dim.h);

Expand Down Expand Up @@ -442,6 +457,10 @@ static struct colored_layout *layout_from_notification(cairo_t *c, struct notifi
g_error_free(err);
}

if (have_built_in_menu(cl)) {
menu_init(n);
}

n->first_render = false;
return cl;
}
Expand Down Expand Up @@ -502,7 +521,7 @@ static int layout_get_height(struct colored_layout *cl, double scale)

return (cl->n->icon_position == ICON_TOP && cl->n->icon)
? h_icon + h_text + h_progress_bar + vertical_padding
: MAX(h_text, h_icon) + h_progress_bar;
: MAX(h_text, h_icon) + h_progress_bar + calculate_menu_height(cl);
}

/* Attempt to make internal radius more organic.
Expand Down Expand Up @@ -699,6 +718,141 @@ void draw_rounded_rect(cairo_t *c, float x, float y, int width, int height, int
cairo_close_path(c);
}


static int calculate_max_button_width(const struct colored_layout *cl)
{
int buttons = menu_get_count(cl->n);
if (buttons == 0) {
return 0;
}
if (!cl->l) {
fprintf(stderr, "cl->l is NULL\n");
return 0;
}

const PangoFontDescription *desc = pango_layout_get_font_description(cl->l);

if (!desc) {
return 0;
}
const int fontsize = pango_font_description_get_size(desc) / PANGO_SCALE;
int max_text_width = 0;
for (int i = 0; i < buttons; i++) {
char *label = menu_get_label(cl->n, i);
if (!label) {
continue;
}
int text_width = strlen(label) * fontsize;
if (text_width > max_text_width) {
max_text_width = text_width;
}
}
max_text_width = MAX(settings.menu_min_width, max_text_width);
max_text_width = MIN(settings.menu_max_width, max_text_width);
return max_text_width;
}

static int calculate_menu_per_row(const struct colored_layout *cl)
{
int menu_width = calculate_max_button_width(cl);
if (menu_width <= 0) {
return 0;
}

int menu_count = 300 / menu_width;
menu_count = MIN(settings.menu_max_per_row, menu_count);
return menu_count;
}

static int calculate_menu_rows(const struct colored_layout *cl)
{
int buttons = menu_get_count(cl->n);
if (buttons <= 0) {
return 0;
}

int max_per_row = calculate_menu_per_row(cl);
if (max_per_row < 1) {
max_per_row = 1;
}

int needed_rows = (buttons + max_per_row - 1) / max_per_row;
return MIN(needed_rows, settings.menu_max_rows);
}

static int calculate_menu_height(const struct colored_layout *cl)
{
if (have_built_in_menu(cl)) {
int rows = calculate_menu_rows(cl);
return settings.menu_height * rows + settings.padding * rows;
} else {
return 0;
}
}

static void draw_built_in_menu(cairo_t *c, struct colored_layout *cl, int area_x, int area_y, int area_width,
int area_height, double scale)
{
if (!have_built_in_menu(cl))
return;

int buttons = menu_get_count(cl->n);
if (buttons == 0) {
return;
}

int max_per_row = calculate_menu_per_row(cl);
int rows = calculate_menu_rows(cl);
int base_button_width = calculate_max_button_width(cl);

pango_layout_set_attributes(cl->l, NULL);
pango_layout_set_font_description(cl->l, NULL);
pango_layout_set_font_description(cl->l, pango_fdesc);
PangoAttrList *attr = pango_attr_list_new();
pango_layout_set_attributes(cl->l, attr);

for (int row = 0; row < rows; row++) {
int buttons_in_row = MIN(buttons - row * max_per_row, max_per_row);
base_button_width = (area_width - settings.padding * (buttons_in_row + 1)) / buttons_in_row;

for (int col = 0; col < buttons_in_row; col++) {
int button_index = row * max_per_row + col;
if (button_index >= buttons)
break;

char *label = menu_get_label(cl->n, button_index);
if (!label)
continue;

int x = area_x + settings.padding + col * (base_button_width + settings.padding);
int y = area_y + row * (settings.menu_height + settings.padding);
menu_set_position(cl->n, button_index, x, y, base_button_width, settings.menu_height);

cairo_set_source_rgb(c, settings.menu_frame_color.r, settings.menu_frame_color.g,
settings.menu_frame_color.b);
cairo_set_line_width(c, settings.menu_frame_width);
draw_rect(c, x, y, base_button_width, settings.menu_height, scale);

if (settings.menu_frame_fill)
cairo_fill(c);
else
cairo_stroke(c);

pango_layout_set_text(cl->l, label, -1);

int text_width, text_height;
pango_layout_get_pixel_size(cl->l, &text_width, &text_height);
double text_x = x + (base_button_width - text_width) / 2;
double text_y = y + (settings.menu_height - text_height) / 2;

cairo_set_source_rgba(c, COLOR(cl, fg.r), COLOR(cl, fg.g), COLOR(cl, fg.b), COLOR(cl, fg.a));
cairo_move_to(c, text_x, text_y);
pango_cairo_show_layout(c, cl->l);
}
}
pango_attr_list_unref(attr);
}

static cairo_surface_t *render_background(cairo_surface_t *srf,
struct colored_layout *cl,
struct colored_layout *cl_next,
Expand Down Expand Up @@ -784,10 +938,12 @@ static void render_content(cairo_t *c, struct colored_layout *cl, int width, int
layout_setup(cl, width, height, scale);

// NOTE: Includes paddings!
int h_without_progress_bar = height;
if (have_progress_bar(cl)) {
h_without_progress_bar -= settings.progress_bar_height + settings.padding;
}
int h_text_and_icon = height;
if (have_progress_bar(cl))
h_text_and_icon -= settings.progress_bar_height + settings.padding;

if (have_built_in_menu(cl))
h_text_and_icon -= calculate_menu_height(cl);

int text_h = 0;
if (!cl->n->hide_text) {
Expand All @@ -799,9 +955,9 @@ static void render_content(cairo_t *c, struct colored_layout *cl, int width, int
text_y = settings.padding;

if (settings.vertical_alignment == VERTICAL_CENTER) {
text_y = h_without_progress_bar / 2 - text_h / 2;
text_y = h_text_and_icon / 2 - text_h / 2;
} else if (settings.vertical_alignment == VERTICAL_BOTTOM) {
text_y = h_without_progress_bar - settings.padding - text_h;
text_y = h_text_and_icon - settings.padding - text_h;
if (text_y < 0) text_y = settings.padding;
} // else VERTICAL_TOP

Expand Down Expand Up @@ -867,7 +1023,7 @@ static void render_content(cairo_t *c, struct colored_layout *cl, int width, int
unsigned int frame_width = settings.progress_bar_frame_width,
progress_width = MIN(width - 2 * settings.h_padding, settings.progress_bar_max_width),
progress_height = settings.progress_bar_height - frame_width,
frame_y = h_without_progress_bar,
frame_y = h_text_and_icon,
progress_width_without_frame = progress_width - 2 * frame_width,
progress_width_1 = progress_width_without_frame * progress / 100,
progress_width_2 = progress_width_without_frame - 1;
Expand Down Expand Up @@ -922,6 +1078,15 @@ static void render_content(cairo_t *c, struct colored_layout *cl, int width, int
scale, settings.progress_bar_corners);
cairo_stroke(c);
}

if (have_built_in_menu(cl)) {
int y = h_text_and_icon;
if (have_progress_bar(cl)) {
y += settings.progress_bar_height + settings.padding;
}
draw_built_in_menu(c, cl, 0, y, width, height, scale);
}

}

static struct dimensions layout_render(cairo_surface_t *srf,
Expand Down

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