i3/src/render.c
2010-04-13 20:51:43 +02:00

139 lines
4.4 KiB
C

/*
* vim:ts=4:sw=4:expandtab
*/
#include "all.h"
/*
* "Renders" the given container (and its children), meaning that all rects are
* updated correctly. Note that this function does not call any xcb_*
* functions, so the changes are completely done in memory only (and
* side-effect free). As soon as you call x_push_changes(), the changes will be
* updated in X11.
*
*/
void render_con(Con *con) {
printf("currently rendering node %p / %s / layout %d\n",
con, con->name, con->layout);
int children = 0;
Con *child;
TAILQ_FOREACH(child, &(con->nodes_head), nodes)
children++;
printf("children: %d, orientation = %d\n", children, con->orientation);
/* Copy container rect, subtract container border */
/* This is the actually usable space inside this container for clients */
Rect rect = con->rect;
rect.x += 2;
rect.y += 2;
rect.width -= 2 * 2;
rect.height -= 2 * 2;
int x = rect.x;
int y = rect.y;
int i = 0;
printf("mapped = true\n");
con->mapped = true;
/* if this container contains a window, set the coordinates */
if (con->window) {
/* depending on the border style, the rect of the child window
* needs to be smaller */
Rect *inset = &(con->window_rect);
*inset = (Rect){0, 0, con->rect.width, con->rect.height};
/* TODO: different border styles */
inset->x += 2;
inset->width -= 2 * 2;
inset->height -= 2;
}
/* Check for fullscreen nodes */
Con *fullscreen = con_get_fullscreen_con(con);
if (fullscreen) {
LOG("got fs node: %p\n", fullscreen);
fullscreen->rect = rect;
render_con(fullscreen);
return;
}
TAILQ_FOREACH(child, &(con->nodes_head), nodes) {
/* default layout */
if (con->layout == L_DEFAULT) {
double percentage = 1.0 / children;
if (child->percent > 0.0)
percentage = child->percent;
printf("child %p / %s requests percentage %f\n",
child, child->name, percentage);
if (con->orientation == HORIZ) {
child->rect.x = x;
child->rect.y = y;
child->rect.width = percentage * rect.width;
child->rect.height = rect.height;
x += child->rect.width;
} else {
child->rect.x = x;
child->rect.y = y;
child->rect.width = rect.width;
child->rect.height = percentage * rect.height;
y += child->rect.height;
}
/* first we have the decoration, if this is a leaf node */
if (con_is_leaf(child)) {
printf("that child is a leaf node, subtracting deco\n");
/* TODO: make a function for relative coords? */
child->deco_rect.x = child->rect.x - con->rect.x;
child->deco_rect.y = child->rect.y - con->rect.y;
child->rect.y += 17;
child->rect.height -= 17;
child->deco_rect.width = child->rect.width;
child->deco_rect.height = 17;
}
}
if (con->layout == L_STACKED) {
printf("stacked con\n");
child->rect.x = x;
child->rect.y = y;
child->rect.width = rect.width;
child->rect.height = rect.height;
child->rect.y += (17 * children);
child->rect.height -= (17 * children);
child->deco_rect.x = x - con->rect.x;
child->deco_rect.y = y - con->rect.y + (i * 17);
child->deco_rect.width = child->rect.width;
child->deco_rect.height = 17;
}
printf("child at (%d, %d) with (%d x %d)\n",
child->rect.x, child->rect.y, child->rect.width, child->rect.height);
printf("x now %d, y now %d\n", x, y);
x_raise_con(child);
render_con(child);
i++;
}
/* in a stacking container, we ensure the focused client is raised */
if (con->layout == L_STACKED) {
Con *foc = TAILQ_FIRST(&(con->focus_head));
x_raise_con(foc);
}
TAILQ_FOREACH(child, &(con->floating_head), floating_windows) {
LOG("render floating:\n");
LOG("floating child at (%d,%d) with %d x %d\n", child->rect.x, child->rect.y, child->rect.width, child->rect.height);
x_raise_con(child);
render_con(child);
}
printf("-- level up\n");
}