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Implement proportional floating-resize.

This commit is contained in:
Axel Wagner 2010-03-13 10:38:22 +01:00 committed by Michael Stapelberg
parent 50d0661203
commit 9cb35383a8
3 changed files with 31 additions and 18 deletions
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2
include/floating.h
View File

@ -71,7 +71,7 @@ void floating_drag_window(xcb_connection_t *conn, Client *client,
*
*/
void floating_resize_window(xcb_connection_t *conn, Client *client,
xcb_button_press_event_t *event);
bool proportional, xcb_button_press_event_t *event);
/**
* Changes focus in the given direction for floating clients.

3
src/click.c
View File

@ -280,8 +280,9 @@ int handle_button_press(void *ignored, xcb_connection_t *conn, xcb_button_press_
DLOG("left mouse button, dragging\n");
floating_drag_window(conn, client, event);
} else if (event->detail == 3) {
bool proportional = (event->state & BIND_SHIFT);
DLOG("right mouse button\n");
floating_resize_window(conn, client, event);
floating_resize_window(conn, client, proportional, event);
}
return 1;
}

44
src/floating.c
View File

@ -291,6 +291,7 @@ void floating_drag_window(xcb_connection_t *conn, Client *client, xcb_button_pre
*/
struct resize_window_callback_params {
border_t corner;
bool proportional;
xcb_button_press_event_t *event;
};
@ -304,27 +305,37 @@ DRAGGING_CB(resize_window_callback) {
uint32_t dest_width;
uint32_t dest_height;
if (corner & BORDER_LEFT) {
dest_x = old_rect->x + (new_x - event->root_x);
double ratio = (double) old_rect->width / old_rect->height;
/* First guess: We resize by exactly the amount the mouse moved,
* taking into account in which corner the client was grabbed */
if (corner & BORDER_LEFT)
dest_width = old_rect->width - (new_x - event->root_x);
} else dest_width = old_rect->width + (new_x - event->root_x);
else dest_width = old_rect->width + (new_x - event->root_x);
if (corner & BORDER_TOP) {
dest_y = old_rect->y + (new_y - event->root_y);
if (corner & BORDER_TOP)
dest_height = old_rect->height - (new_y - event->root_y);
} else dest_height = old_rect->height + (new_y - event->root_y);
else dest_height = old_rect->height + (new_y - event->root_y);
/* Obey minimum window size */
dest_width = max(dest_width, client_min_width(client));
dest_height = max(dest_height, client_min_height(client));
/* Obey minimum window size and reposition the client */
if (dest_width > 0 && dest_width >= client_min_width(client)) {
client->rect.x = dest_x;
client->rect.width = dest_width;
/* User wants to keep proportions, so we may have to adjust our values */
if (params->proportional) {
dest_width = max(dest_width, (int) (dest_height * ratio));
dest_height = max(dest_height, (int) (dest_width / ratio));
}
if (dest_height > 0 && dest_height >= client_min_height(client)) {
client->rect.y = dest_y;
client->rect.height = dest_height;
}
/* If not the lower right corner is grabbed, we must also reposition
* the client by exactly the amount we resized it */
if (corner & BORDER_LEFT)
dest_x = old_rect->x + (old_rect->width - dest_width);
if (corner & BORDER_TOP)
dest_y = old_rect->y + (old_rect->height - dest_height);
client->rect = (Rect) { dest_x, dest_y, dest_width, dest_height };
/* resize_client flushes */
resize_client(conn, client);
@ -336,7 +347,8 @@ DRAGGING_CB(resize_window_callback) {
* Calls the drag_pointer function with the resize_window callback
*
*/
void floating_resize_window(xcb_connection_t *conn, Client *client, xcb_button_press_event_t *event) {
void floating_resize_window(xcb_connection_t *conn, Client *client,
bool proportional, xcb_button_press_event_t *event) {
DLOG("floating_resize_window\n");
/* corner saves the nearest corner to the original click. It contains
@ -351,7 +363,7 @@ void floating_resize_window(xcb_connection_t *conn, Client *client, xcb_button_p
corner |= BORDER_TOP;
else corner |= BORDER_RIGHT;
struct resize_window_callback_params params = { corner, event };
struct resize_window_callback_params params = { corner, proportional, event };
drag_pointer(conn, client, event, XCB_NONE, BORDER_TOP /* irrelevant */, resize_window_callback, &params);
}