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bar.c
219 lines (194 loc) · 6.42 KB
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bar.c
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/*
* Nilwm - Lightweight X window manager.
* See LICENSE file for copyright and license details.
*/
#include <string.h>
#include "nilwm.h"
/* get padding for center alignment */
#define CENTER_H_(W, L) (((W) - (L)) / 2)
#define CENTER_V_(H) (((H) + nil_.font.ascent + nil_.font.descent) / 2 - nil_.font.descent)
#define STATUS_LEN_ 128
#define STATUS_TEXT_ "NilWM"
struct bar_t bar_;
static char status_[STATUS_LEN_];
void text_bar(int x, int y, const char *str) {
int len;
len = strlen(str);
xcb_image_text_8(nil_.con, len, bar_.win, bar_.gc, x, y, str);
}
static
void draw_bar_text(struct bar_box_t *box, const char *s, int len) {
uint32_t vals[2];
xcb_rectangle_t rect;
vals[0] = nil_.color.bar_fg;
vals[1] = nil_.color.bar_bg;
if (box->w > 0) { /* clear box before writing text */
rect.x = box->x;
rect.y = 0;
rect.width = box->w;
rect.height = bar_.h;
xcb_change_gc(nil_.con, bar_.gc, XCB_GC_FOREGROUND, &vals[1]);
xcb_poly_fill_rectangle(nil_.con, bar_.win, bar_.gc, 1, &rect);
}
/* new pos/size */
rect.width = cal_text_width(s, len);
if (NIL_HAS_FLAG(box->flags, BOX_FIXED)) { /* size is not changed */
/* text alignment */
if (NIL_HAS_FLAG(box->flags, BOX_TEXT_CENTER)) {
rect.x = box->x + CENTER_H_(box->w, rect.width);
} else if (NIL_HAS_FLAG(box->flags, BOX_TEXT_RIGHT)) {
rect.x = box->x + box->w - rect.width;
} else {
rect.x = box->x;
}
} else if (NIL_HAS_FLAG(box->flags, BOX_RIGHT)) { /* float right */
rect.x = box->x + box->w - rect.width;
box->x = rect.x;
box->w = rect.width;
} else { /* float left */
rect.x = box->x;
box->w = rect.width;
}
NIL_LOG("draw text %d in %d %u", rect.x, box->x, box->w);
xcb_change_gc(nil_.con, bar_.gc, XCB_GC_FOREGROUND | XCB_GC_BACKGROUND, vals);
xcb_image_text_8(nil_.con, len, bar_.win, bar_.gc, rect.x,
CENTER_V_(bar_.h), s);
}
/** Handle mouse click on workspace selection
*/
static
void click_ws(struct bar_box_t *self, int x) {
struct arg_t arg;
/* find which workspace */
x += self->x;
arg.u = x / (self->w / cfg_.num_workspaces);
change_ws(&arg);
}
static
void click_sym(struct bar_box_t *NIL_UNUSED(self), int NIL_UNUSED(x)) {
struct arg_t arg;
arg.i = -1; /* next one */
set_layout(&arg);
}
void config_bar() {
unsigned int i;
int len, pad;
xcb_rectangle_t rect;
uint32_t vals[2];
char text[3];
struct bar_box_t *box;
/* workspace selection area */
box = &bar_.box[BAR_WS];
box->x = 0;
box->w = bar_.h * cfg_.num_workspaces;
box->flags = BOX_FIXED;
box->click = &click_ws;
/* colors */
vals[0] = nil_.color.bar_fg;
vals[1] = nil_.color.bar_bg;
xcb_change_gc(nil_.con, bar_.gc, XCB_GC_FOREGROUND, &vals[1]);
rect.width = bar_.w;
rect.height = bar_.h;
rect.x = 0;
rect.y = 0;
xcb_poly_fill_rectangle(nil_.con, bar_.win, bar_.gc, 1, &rect);
/* workspace numbers */
xcb_change_gc(nil_.con, bar_.gc, XCB_GC_FOREGROUND | XCB_GC_BACKGROUND, vals);
rect.x = 0;
rect.y = (rect.height + nil_.font.ascent + nil_.font.descent) / 2 - nil_.font.descent;
rect.width = bar_.h;
for (i = 1; i <= cfg_.num_workspaces; ++i) {
len = snprintf(text, sizeof(text), "%u", i);
pad = (rect.width - cal_text_width(text, len)) / 2; /* to align center */
xcb_image_text_8(nil_.con, len, bar_.win, bar_.gc, rect.x + pad, rect.y, text);
rect.x += rect.width;
}
/* layout symbol (next to ws) */
box = &bar_.box[BAR_SYM];
box->x = 0 + bar_.box[BAR_WS].w;
box->w = 30;
box->flags = BOX_FIXED | BOX_TEXT_CENTER;
box->click = &click_sym;
/* icon tray (right aligned) */
box = &bar_.box[BAR_ICON];
box->x = bar_.w;
box->w = 0; /* no icon yet */
box->flags = BOX_RIGHT;
box->click = 0;
/* status (right aligned) */
box = &bar_.box[BAR_STATUS];
box->x = bar_.w - bar_.box[BAR_ICON].w;
box->w = 0; /* empty */
box->flags = BOX_RIGHT;
box->click = 0;
/* task (remain) */
box = &bar_.box[BAR_TASK];
box->x = bar_.box[BAR_SYM].x + bar_.box[BAR_SYM].w;
box->w = bar_.box[BAR_STATUS].x - bar_.box[BAR_TASK].x;
box->flags = BOX_LEFT;
box->click = 0;
}
/** Handle mouse click on bar
*/
int click_bar(int x) {
struct bar_box_t *box;
int i;
for (i = NUM_BAR - 1; i >= 0; --i) {
box = &bar_.box[i];
if ((x >= box->x) && (x <= (box->x + box->w))) {
if (box->click) {
(*box->click)(box, x);
return 1;
}
break;
}
}
return 0;
}
void update_bar_ws(unsigned int idx) {
xcb_rectangle_t rect;
uint32_t vals[2];
char text[3];
int len;
/* colors */
vals[0] = nil_.color.bar_fg;
if (idx == nil_.ws_idx) { /* focused workspace */
vals[1] = nil_.color.bar_sel;
} else if (nil_.ws[idx].first) { /* has a client */
vals[1] = nil_.color.bar_occ;
} else {
vals[1] = nil_.color.bar_bg;
}
xcb_change_gc(nil_.con, bar_.gc, XCB_GC_FOREGROUND, &vals[1]);
rect.width = bar_.box[BAR_WS].w / cfg_.num_workspaces;
rect.height = bar_.h;
rect.x = bar_.box[BAR_WS].x + rect.width * idx;
rect.y = 0;
xcb_poly_fill_rectangle(nil_.con, bar_.win, bar_.gc, 1, &rect);
/* text */
xcb_change_gc(nil_.con, bar_.gc, XCB_GC_FOREGROUND | XCB_GC_BACKGROUND, vals);
len = snprintf(text, sizeof(text), "%u", idx + 1);
rect.x += CENTER_H_(rect.width, cal_text_width(text, len));
rect.y += CENTER_V_(rect.height);
xcb_image_text_8(nil_.con, len, bar_.win, bar_.gc, rect.x, rect.y, text);
}
void update_bar_sym() {
const char *sym;
sym = (get_layout(&nil_.ws[nil_.ws_idx]))->symbol;
if (!sym) {
NIL_ERR("no layout symbol %d", nil_.ws_idx);
return;
}
draw_bar_text(&bar_.box[BAR_SYM], sym, strlen(sym));
}
void update_bar_status() {
int len;
len = get_text_prop(nil_.scr->root, XCB_ATOM_WM_NAME, status_, sizeof(status_));
if (len <= 0) {
len = strlen(STATUS_TEXT_);
memcpy(status_, STATUS_TEXT_, len);
status_[len] = '\0';
}
draw_bar_text(&bar_.box[BAR_STATUS], status_, len);
}
/* vim: set ts=4 sw=4 expandtab: */