]> git.sur5r.net Git - i3/i3/blobdiff - src/resize.c
Implement resizing (still buggy)
[i3/i3] / src / resize.c
index 0ef775dcb1a44111a81cc5398530ee80c5fcd874..9477155102ba62fd371f9e80a4ecb4cc31a034ea 100644 (file)
 /*
- * vim:ts=8:expandtab
- *
- * i3 - an improved dynamic tiling window manager
- *
- * © 2009 Michael Stapelberg and contributors
- *
- * See file LICENSE for license information.
- *
- * This file contains the functions for resizing table columns/rows because
- * it’s actually lots of work, compared to the other handlers.
- *
+ * vim:ts=4:sw=4:expandtab
  */
-#include <stdlib.h>
-#include <assert.h>
-
-#include <xcb/xcb.h>
-#include <xcb/xcb_event.h>
+#include "all.h"
 
-#include "i3.h"
-#include "data.h"
-#include "resize.h"
-#include "util.h"
-#include "xcb.h"
-#include "debug.h"
-#include "layout.h"
-#include "xinerama.h"
-#include "config.h"
-#include "floating.h"
+extern xcb_connection_t *conn;
 
 /*
- * Renders the resize window between the first/second container and resizes
- * the table column/row.
+ * This is an ugly data structure which we need because there is no standard
+ * way of having nested functions (only available as a gcc extension at the
+ * moment, clang doesn’t support it) or blocks (only available as a clang
+ * extension and only on Mac OS X systems at the moment).
  *
  */
-int resize_graphical_handler(xcb_connection_t *conn, Workspace *ws, int first, int second,
-                             resize_orientation_t orientation, xcb_button_press_event_t *event) {
-        int new_position;
-        i3Screen *screen = get_screen_containing(event->root_x, event->root_y);
-        if (screen == NULL) {
-                LOG("BUG: No screen found at this position (%d, %d)\n", event->root_x, event->root_y);
-                return 1;
-        }
-
-        /* We cannot use the X root window's width_in_pixels or height_in_pixels
-         * attributes here since they are not updated when you configure new
-         * screens during runtime. Instead, we just use the most right and most
-         * bottom Xinerama screen and use their position + width/height to get
-         * the area of pixels currently in use */
-        i3Screen *most_right = get_screen_most(D_RIGHT, screen),
-                 *most_bottom = get_screen_most(D_DOWN, screen);
-
-        LOG("event->event_x = %d, event->root_x = %d\n", event->event_x, event->root_x);
-
-        LOG("Screen dimensions: (%d, %d) %d x %d\n", screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height);
-
-        uint32_t mask = 0;
-        uint32_t values[2];
-
-        mask = XCB_CW_OVERRIDE_REDIRECT;
-        values[0] = 1;
-
-        /* Open a new window, the resizebar. Grab the pointer and move the window around
-           as the user moves the pointer. */
-        Rect grabrect = {0,
-                         0,
-                         most_right->rect.x + most_right->rect.width,
-                         most_bottom->rect.x + most_bottom->rect.height};
-        xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, true, mask, values);
-
-        Rect helprect;
-        if (orientation == O_VERTICAL) {
-                helprect.x = event->root_x;
-                helprect.y = screen->rect.y;
-                helprect.width = 2;
-                helprect.height = screen->rect.height;
-                new_position = event->root_x;
-        } else {
-                helprect.x = screen->rect.x;
-                helprect.y = event->root_y;
-                helprect.width = screen->rect.width;
-                helprect.height = 2;
-                new_position = event->root_y;
-        }
-
-        mask = XCB_CW_BACK_PIXEL;
-        values[0] = config.client.focused.border;
-
-        mask |= XCB_CW_OVERRIDE_REDIRECT;
-        values[1] = 1;
-
-        xcb_window_t helpwin = create_window(conn, helprect, XCB_WINDOW_CLASS_INPUT_OUTPUT,
-                                             (orientation == O_VERTICAL ?
-                                              XCB_CURSOR_SB_V_DOUBLE_ARROW :
-                                              XCB_CURSOR_SB_H_DOUBLE_ARROW), true, mask, values);
-
-        xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);
-
-        xcb_flush(conn);
-
-        void resize_callback(Rect *old_rect, uint32_t new_x, uint32_t new_y) {
-                LOG("new x = %d, y = %d\n", new_x, new_y);
-                if (orientation == O_VERTICAL) {
-                        /* Check if the new coordinates are within screen boundaries */
-                        if (new_x > (screen->rect.x + screen->rect.width - 25) ||
-                            new_x < (screen->rect.x + 25))
-                                return;
-
-                        values[0] = new_position = new_x;
-                        xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_X, values);
-                } else {
-                        if (new_y > (screen->rect.y + screen->rect.height - 25) ||
-                            new_y < (screen->rect.y + 25))
-                                return;
-
-                        values[0] = new_position = new_y;
-                        xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_Y, values);
-                }
-
-                xcb_flush(conn);
-        }
-
-        drag_pointer(conn, NULL, event, grabwin, BORDER_TOP, resize_callback);
-
-        xcb_destroy_window(conn, helpwin);
-        xcb_destroy_window(conn, grabwin);
-        xcb_flush(conn);
-
-        int pixels;
-        if (orientation == O_VERTICAL)
-                pixels = (new_position - event->root_x);
-        else pixels = (new_position - event->root_y);
-        resize_container(conn, ws, first, second, orientation, pixels);
-
-        return 1;
+struct callback_params {
+    orientation_t orientation;
+    Con *output;
+    xcb_window_t helpwin;
+    uint32_t *new_position;
+};
+
+DRAGGING_CB(resize_callback) {
+    struct callback_params *params = extra;
+    Con *output = params->output;
+    DLOG("new x = %d, y = %d\n", new_x, new_y);
+    if (params->orientation == HORIZ) {
+        /* Check if the new coordinates are within screen boundaries */
+        if (new_x > (output->rect.x + output->rect.width - 25) ||
+            new_x < (output->rect.x + 25))
+            return;
+
+        *(params->new_position) = new_x;
+        xcb_configure_window(conn, params->helpwin, XCB_CONFIG_WINDOW_X, params->new_position);
+    } else {
+        if (new_y > (output->rect.y + output->rect.height - 25) ||
+            new_y < (output->rect.y + 25))
+            return;
+
+        *(params->new_position) = new_y;
+        xcb_configure_window(conn, params->helpwin, XCB_CONFIG_WINDOW_Y, params->new_position);
+    }
+
+    xcb_flush(conn);
 }
 
-/*
- * Resizes a column/row by the given amount of pixels. Called by
- * resize_graphical_handler (the user clicked) or parse_resize_command (the
- * user issued the command)
- *
- */
-void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int second,
-                      resize_orientation_t orientation, int pixels) {
-
-        /* TODO: refactor this, both blocks are very identical */
-        if (orientation == O_VERTICAL) {
-                int default_width = ws->rect.width / ws->cols;
-                int old_unoccupied_x = get_unoccupied_x(ws);
-
-                /* We pre-calculate the unoccupied space to see if we need to adapt sizes before
-                 * doing the resize */
-                int new_unoccupied_x = old_unoccupied_x;
-
-                if (old_unoccupied_x == 0)
-                        old_unoccupied_x = ws->rect.width;
-
-                if (ws->width_factor[first] == 0)
-                        new_unoccupied_x += default_width;
-
-                if (ws->width_factor[second] == 0)
-                        new_unoccupied_x += default_width;
-
-                LOG("\n\n\n");
-                LOG("old = %d, new = %d\n", old_unoccupied_x, new_unoccupied_x);
-
-                int cols_without_wf = 0;
-                int old_width, old_second_width;
-                for (int col = 0; col < ws->cols; col++)
-                        if (ws->width_factor[col] == 0)
-                                cols_without_wf++;
-
-                LOG("old_unoccupied_x = %d\n", old_unoccupied_x);
-
-                LOG("Updating first (before = %f)\n", ws->width_factor[first]);
-                /* Convert 0 (for default width_factor) to actual numbers */
-                if (ws->width_factor[first] == 0)
-                        old_width = (old_unoccupied_x / max(cols_without_wf, 1));
-                else old_width = ws->width_factor[first] * old_unoccupied_x;
-
-                LOG("second (before = %f)\n", ws->width_factor[second]);
-                if (ws->width_factor[second] == 0)
-                        old_second_width = (old_unoccupied_x / max(cols_without_wf, 1));
-                else old_second_width = ws->width_factor[second] * old_unoccupied_x;
-
-                LOG("middle = %f\n", ws->width_factor[first]);
-
-                /* If the space used for customly resized columns has changed we need to adapt the
-                 * other customly resized columns, if any */
-                if (new_unoccupied_x != old_unoccupied_x)
-                        for (int col = 0; col < ws->cols; col++) {
-                                if (ws->width_factor[col] == 0)
-                                        continue;
-
-                                LOG("Updating other column (%d) (current width_factor = %f)\n", col, ws->width_factor[col]);
-                                ws->width_factor[col] = (ws->width_factor[col] * old_unoccupied_x) / new_unoccupied_x;
-                                LOG("to %f\n", ws->width_factor[col]);
-                        }
-
-                LOG("Updating first (before = %f)\n", ws->width_factor[first]);
-                /* Convert 0 (for default width_factor) to actual numbers */
-                if (ws->width_factor[first] == 0)
-                        ws->width_factor[first] = ((float)ws->rect.width / ws->cols) / new_unoccupied_x;
+int resize_graphical_handler(Con *first, Con *second, orientation_t orientation, xcb_button_press_event_t *event) {
+    DLOG("resize handler\n");
 
-                LOG("first->width = %d, pixels = %d\n", old_width, pixels);
-                ws->width_factor[first] *= (float)(old_width + pixels) / old_width;
-                LOG("-> %f\n", ws->width_factor[first]);
+    uint32_t new_position;
 
+    /* TODO: previously, we were getting a rect containing all screens. why? */
+    Con *output = con_get_output(first);
+    DLOG("x = %d, width = %d\n", output->rect.x, output->rect.width);
 
-                LOG("Updating second (before = %f)\n", ws->width_factor[second]);
-                if (ws->width_factor[second] == 0)
-                        ws->width_factor[second] = ((float)ws->rect.width / ws->cols) / new_unoccupied_x;
+    uint32_t mask = 0;
+    uint32_t values[2];
 
-                LOG("middle = %f\n", ws->width_factor[second]);
-                LOG("second->width = %d, pixels = %d\n", old_second_width, pixels);
-                ws->width_factor[second] *= (float)(old_second_width - pixels) / old_second_width;
-                LOG("-> %f\n", ws->width_factor[second]);
+    mask = XCB_CW_OVERRIDE_REDIRECT;
+    values[0] = 1;
 
-                LOG("new unoccupied_x = %d\n", get_unoccupied_x(ws));
+    /* Open a new window, the resizebar. Grab the pointer and move the window around
+       as the user moves the pointer. */
+    xcb_window_t grabwin = create_window(conn, output->rect, XCB_WINDOW_CLASS_INPUT_ONLY, XCURSOR_CURSOR_POINTER, true, mask, values);
 
-                LOG("\n\n\n");
-        } else {
-                int default_height = ws->rect.height / ws->rows;
-                int old_unoccupied_y = get_unoccupied_y(ws);
+    Rect helprect;
+    if (orientation == HORIZ) {
+        helprect.x = event->root_x;
+        helprect.y = output->rect.y;
+        helprect.width = 2;
+        helprect.height = output->rect.height;
+        new_position = event->root_x;
+    } else {
+        helprect.x = output->rect.x;
+        helprect.y = event->root_y;
+        helprect.width = output->rect.width;
+        helprect.height = 2;
+        new_position = event->root_y;
+    }
 
-                /* We pre-calculate the unoccupied space to see if we need to adapt sizes before
-                 * doing the resize */
-                int new_unoccupied_y = old_unoccupied_y;
+    mask = XCB_CW_BACK_PIXEL;
+    values[0] = config.client.focused.border;
 
-                if (old_unoccupied_y == 0)
-                        old_unoccupied_y = ws->rect.height;
+    mask |= XCB_CW_OVERRIDE_REDIRECT;
+    values[1] = 1;
 
-                if (ws->height_factor[first] == 0)
-                        new_unoccupied_y += default_height;
+    xcb_window_t helpwin = create_window(conn, helprect, XCB_WINDOW_CLASS_INPUT_OUTPUT,
+                                         (orientation == HORIZ ?
+                                          XCURSOR_CURSOR_RESIZE_HORIZONTAL :
+                                          XCURSOR_CURSOR_RESIZE_VERTICAL), true, mask, values);
 
-                if (ws->height_factor[second] == 0)
-                        new_unoccupied_y += default_height;
+    xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);
 
-                LOG("\n\n\n");
-                LOG("old = %d, new = %d\n", old_unoccupied_y, new_unoccupied_y);
+    xcb_flush(conn);
 
-                /* If the space used for customly resized columns has changed we need to adapt the
-                 * other customly resized columns, if any */
-                if (new_unoccupied_y != old_unoccupied_y)
-                        for (int row = 0; row < ws->rows; row++) {
-                                if (ws->height_factor[row] == 0)
-                                        continue;
+    struct callback_params params = { orientation, output, helpwin, &new_position };
 
-                                LOG("Updating other column (%d) (current width_factor = %f)\n", row, ws->height_factor[row]);
-                                ws->height_factor[row] = (ws->height_factor[row] * old_unoccupied_y) / new_unoccupied_y;
-                                LOG("to %f\n", ws->height_factor[row]);
-                        }
+    drag_pointer(NULL, event, grabwin, BORDER_TOP, resize_callback, &params);
 
-                LOG("old_unoccupied_y = %d\n", old_unoccupied_y);
+    xcb_destroy_window(conn, helpwin);
+    xcb_destroy_window(conn, grabwin);
+    xcb_flush(conn);
 
-                LOG("Updating first (before = %f)\n", ws->height_factor[first]);
-                /* Convert 0 (for default width_factor) to actual numbers */
-                if (ws->height_factor[first] == 0)
-                        ws->height_factor[first] = ((float)ws->rect.height / ws->rows) / new_unoccupied_y;
+    int pixels;
+    if (orientation == HORIZ)
+        pixels = (new_position - event->root_x);
+    else pixels = (new_position - event->root_y);
 
-                LOG("middle = %f\n", ws->height_factor[first]);
-                int old_height = ws->height_factor[first] * old_unoccupied_y;
-                LOG("first->width = %d, pixels = %d\n", pixels);
-                ws->height_factor[first] *= (float)(old_height + pixels) / old_height;
-                LOG("-> %f\n", ws->height_factor[first]);
+    DLOG("Done, pixels = %d\n", pixels);
 
+    double new_percent, difference;
+    int children = con_num_children(first->parent);
+    double percent = 1.0 / children;
+    if (first->percent > 0.0)
+        percent = first->percent;
+    DLOG("percent = %f\n", percent);
+    int original = (orientation == HORIZ ? first->rect.width : first->rect.height);
+    DLOG("original = %d\n", original);
+    new_percent = (original + pixels) * (percent / original);
+    difference = percent - new_percent;
+    DLOG("difference = %f\n", difference);
+    DLOG("new percent = %f\n", new_percent);
 
-                LOG("Updating second (before = %f)\n", ws->height_factor[second]);
-                if (ws->height_factor[second] == 0)
-                        ws->height_factor[second] = ((float)ws->rect.height / ws->rows) / new_unoccupied_y;
-                LOG("middle = %f\n", ws->height_factor[second]);
-                old_height = ws->height_factor[second] * old_unoccupied_y;
-                LOG("second->width = %d, pixels = %d\n", pixels);
-                ws->height_factor[second] *= (float)(old_height - pixels) / old_height;
-                LOG("-> %f\n", ws->height_factor[second]);
+    first->percent = new_percent;
 
-                LOG("new unoccupied_y = %d\n", get_unoccupied_y(ws));
+    double s_percent = 1.0 / children;
+    if (second->percent > 0.0)
+        s_percent = second->percent;
 
-                LOG("\n\n\n");
-        }
+    second->percent = s_percent + difference;
+    DLOG("second->percent = %f\n", second->percent);
 
-        render_layout(conn);
+    return 0;
 }