00001
00002
00003
00004
00005
00006
00007
00008
00009
00010
00011
00012
00013
00014 #include <stdlib.h>
00015 #include <assert.h>
00016
00017 #include <xcb/xcb.h>
00018 #include <xcb/xcb_event.h>
00019
00020 #include "i3.h"
00021 #include "data.h"
00022 #include "resize.h"
00023 #include "util.h"
00024 #include "xcb.h"
00025 #include "debug.h"
00026 #include "layout.h"
00027 #include "randr.h"
00028 #include "config.h"
00029 #include "floating.h"
00030 #include "workspace.h"
00031 #include "log.h"
00032
00033
00034
00035
00036
00037
00038
00039
00040 struct callback_params {
00041 resize_orientation_t orientation;
00042 Output *screen;
00043 xcb_window_t helpwin;
00044 uint32_t *new_position;
00045 };
00046
00047 DRAGGING_CB(resize_callback) {
00048 struct callback_params *params = extra;
00049 Output *screen = params->screen;
00050 DLOG("new x = %d, y = %d\n", new_x, new_y);
00051 if (params->orientation == O_VERTICAL) {
00052
00053 if (new_x > (screen->rect.x + screen->rect.width - 25) ||
00054 new_x < (screen->rect.x + 25))
00055 return;
00056
00057 *(params->new_position) = new_x;
00058 xcb_configure_window(conn, params->helpwin, XCB_CONFIG_WINDOW_X, params->new_position);
00059 } else {
00060 if (new_y > (screen->rect.y + screen->rect.height - 25) ||
00061 new_y < (screen->rect.y + 25))
00062 return;
00063
00064 *(params->new_position) = new_y;
00065 xcb_configure_window(conn, params->helpwin, XCB_CONFIG_WINDOW_Y, params->new_position);
00066 }
00067
00068 xcb_flush(conn);
00069 }
00070
00071
00072
00073
00074
00075
00076 int resize_graphical_handler(xcb_connection_t *conn, Workspace *ws, int first, int second,
00077 resize_orientation_t orientation, xcb_button_press_event_t *event) {
00078 uint32_t new_position;
00079 Output *screen = get_output_containing(event->root_x, event->root_y);
00080 if (screen == NULL) {
00081 ELOG("BUG: No screen found at this position (%d, %d)\n", event->root_x, event->root_y);
00082 return 1;
00083 }
00084
00085
00086
00087
00088
00089
00090 Output *most_right = get_output_most(D_RIGHT, screen),
00091 *most_bottom = get_output_most(D_DOWN, screen);
00092
00093 DLOG("event->event_x = %d, event->root_x = %d\n", event->event_x, event->root_x);
00094
00095 DLOG("Screen dimensions: (%d, %d) %d x %d\n", screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height);
00096
00097 uint32_t mask = 0;
00098 uint32_t values[2];
00099
00100 mask = XCB_CW_OVERRIDE_REDIRECT;
00101 values[0] = 1;
00102
00103
00104
00105 Rect grabrect = {0,
00106 0,
00107 most_right->rect.x + most_right->rect.width,
00108 most_bottom->rect.x + most_bottom->rect.height};
00109 xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, true, mask, values);
00110
00111 Rect helprect;
00112 if (orientation == O_VERTICAL) {
00113 helprect.x = event->root_x;
00114 helprect.y = screen->rect.y;
00115 helprect.width = 2;
00116 helprect.height = screen->rect.height;
00117 new_position = event->root_x;
00118 } else {
00119 helprect.x = screen->rect.x;
00120 helprect.y = event->root_y;
00121 helprect.width = screen->rect.width;
00122 helprect.height = 2;
00123 new_position = event->root_y;
00124 }
00125
00126 mask = XCB_CW_BACK_PIXEL;
00127 values[0] = config.client.focused.border;
00128
00129 mask |= XCB_CW_OVERRIDE_REDIRECT;
00130 values[1] = 1;
00131
00132 xcb_window_t helpwin = create_window(conn, helprect, XCB_WINDOW_CLASS_INPUT_OUTPUT,
00133 (orientation == O_VERTICAL ?
00134 XCB_CURSOR_SB_H_DOUBLE_ARROW :
00135 XCB_CURSOR_SB_V_DOUBLE_ARROW), true, mask, values);
00136
00137 xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);
00138
00139 xcb_flush(conn);
00140
00141 struct callback_params params = { orientation, screen, helpwin, &new_position };
00142
00143 drag_pointer(conn, NULL, event, grabwin, BORDER_TOP, resize_callback, ¶ms);
00144
00145 xcb_destroy_window(conn, helpwin);
00146 xcb_destroy_window(conn, grabwin);
00147 xcb_flush(conn);
00148
00149 int pixels;
00150 if (orientation == O_VERTICAL)
00151 pixels = (new_position - event->root_x);
00152 else pixels = (new_position - event->root_y);
00153 resize_container(conn, ws, first, second, orientation, pixels);
00154
00155 return 1;
00156 }
00157
00158
00159
00160
00161
00162 static void adjust_container_factors(float *factors, int ws_size, int unoccupied_size,
00163 int num_items, int first, int second, int pixels) {
00164
00165 int sizes[num_items];
00166 for (int i = 0; i < num_items; ++i)
00167 sizes[i] = factors[i] == 0 ? ws_size / num_items : unoccupied_size * factors[i];
00168
00169
00170 sizes[first] += pixels;
00171 sizes[second] -= pixels;
00172
00173
00174 if (factors[first] == 0) unoccupied_size += ws_size / num_items;
00175 if (factors[second] == 0) unoccupied_size += ws_size / num_items;
00176
00177
00178 for (int i = 0; i < num_items; ++i) {
00179 if (factors[i] != 0 || i == first || i == second)
00180 factors[i] = (float)sizes[i] / unoccupied_size;
00181 }
00182 }
00183
00184
00185
00186
00187
00188
00189
00190 void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int second,
00191 resize_orientation_t orientation, int pixels) {
00192 if (orientation == O_VERTICAL) {
00193 adjust_container_factors(ws->width_factor, ws->rect.width,
00194 get_unoccupied_x(ws), ws->cols, first, second, pixels);
00195 }
00196 else {
00197 adjust_container_factors(ws->height_factor, workspace_height(ws),
00198 get_unoccupied_y(ws), ws->rows, first, second, pixels);
00199 }
00200
00201 render_layout(conn);
00202 }