Changeset a40ae0d in mainline for uspace/srv/hid/display/window.c

Timestamp:

2020-01-09T16:44:57Z (5 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

946a666

Parents:

8e9781f

git-author:

Jiri Svoboda <jiri@…> (2020-01-09 18:44:03)

git-committer:

Jiri Svoboda <jiri@…> (2020-01-09 16:44:57)

Message:

Moving windows by mouse drag

File:

• uspace/srv/hid/display/window.c (modified) (1 diff)

uspace/srv/hid/display/window.c

@@ -270 +270 @@
 }
 
+/** Start moving a window by mouse drag.
+ *
+ * @param wnd Window
+ * @param event Button press event
+ */
+static void ds_window_start_move(ds_window_t *wnd, pos_event_t *event)
+{
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_start_move (%d, %d)",
+            (int) event->hpos, (int) event->vpos);
+
+        assert(wnd->state == dsw_idle);
+
+        wnd->orig_pos.x = event->hpos;
+        wnd->orig_pos.y = event->vpos;
+        wnd->state = dsw_moving;
+}
+
+/** Finish moving a window by mouse drag.
+ *
+ * @param wnd Window
+ * @param event Button release event
+ */
+static void ds_window_finish_move(ds_window_t *wnd, pos_event_t *event)
+{
+        gfx_coord2_t pos;
+        gfx_coord2_t dmove;
+        gfx_coord2_t nwpos;
+
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_finish_move (%d, %d)",
+            (int) event->hpos, (int) event->vpos);
+
+        assert(wnd->state == dsw_moving);
+        pos.x = event->hpos;
+        pos.y = event->vpos;
+        gfx_coord2_subtract(&pos, &wnd->orig_pos, &dmove);
+
+        gfx_coord2_add(&wnd->dpos, &dmove, &nwpos);
+        wnd->dpos = nwpos;
+        wnd->state = dsw_idle;
+}
+
+/** Update window position when moving by mouse drag.
+ *
+ * @param wnd Window
+ * @param event Position update event
+ */
+static void ds_window_update_move(ds_window_t *wnd, pos_event_t *event)
+{
+        gfx_coord2_t pos;
+        gfx_coord2_t dmove;
+        gfx_coord2_t nwpos;
+        gfx_rect_t drect;
+        gfx_color_t *color;
+        gfx_context_t *gc;
+        errno_t rc;
+
+        log_msg(LOG_DEFAULT, LVL_DEBUG, "ds_window_update_move (%d, %d)",
+            (int) event->hpos, (int) event->vpos);
+
+        assert(wnd->state == dsw_moving);
+        pos.x = event->hpos;
+        pos.y = event->vpos;
+        gfx_coord2_subtract(&pos, &wnd->orig_pos, &dmove);
+
+        gfx_coord2_add(&wnd->dpos, &dmove, &nwpos);
+        gfx_rect_translate(&nwpos, &wnd->rect, &drect);
+
+        rc = gfx_color_new_rgb_i16(0xffff, 0xffff, 0xffff, &color);
+        if (rc != EOK)
+                return;
+
+        gc = ds_display_get_gc(wnd->display); // XXX
+        if (gc != NULL) {
+                gfx_set_color(ds_display_get_gc(wnd->display), color);
+                gfx_fill_rect(ds_display_get_gc(wnd->display), &drect);
+        }
+
+        gfx_color_delete(color);
+}
+
+/** Post position event to window.
+ *
+ * @param wnd Window
+ * @param event Position event
+ */
+errno_t ds_window_post_pos_event(ds_window_t *wnd, pos_event_t *event)
+{
+        log_msg(LOG_DEFAULT, LVL_DEBUG,
+            "ds_window_post_pos_event type=%d pos=%d,%d\n", event->type,
+            (int) event->hpos, (int) event->vpos);
+
+        if (event->type == POS_PRESS) {
+                if (wnd->state == dsw_idle)
+                        ds_window_start_move(wnd, event);
+        }
+
+        if (event->type == POS_RELEASE) {
+                if (wnd->state == dsw_moving)
+                        ds_window_finish_move(wnd, event);
+        }
+
+        if (event->type == POS_UPDATE) {
+                if (wnd->state == dsw_moving)
+                        ds_window_update_move(wnd, event);
+        }
+
+        return EOK;
+}
+
 /** @}
  */