Changeset 453f9645 in mainline for uspace/lib/ui/src/filelist.c

Timestamp:

2022-06-16T10:05:17Z (3 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

54ddb59

Parents:

fdf55a3

git-author:

Jiri Svoboda <jiri@…> (2022-06-15 17:05:06)

git-committer:

Jiri Svoboda <jiri@…> (2022-06-16 10:05:17)

Message:

Add scroll bar to file list control

File:

• uspace/lib/ui/src/filelist.c (modified) (14 diffs)

uspace/lib/ui/src/filelist.c

@@ -45 +45 @@
 #include <ui/paint.h>
 #include <ui/resource.h>
+#include <ui/scrollbar.h>
 #include <vfs/vfs.h>
 #include <qsort.h>
@@ -70 +71 @@
 };
 
+static void ui_file_list_scrollbar_up(ui_scrollbar_t *, void *);
+static void ui_file_list_scrollbar_down(ui_scrollbar_t *, void *);
+static void ui_file_list_scrollbar_page_up(ui_scrollbar_t *, void *);
+static void ui_file_list_scrollbar_page_down(ui_scrollbar_t *, void *);
+static void ui_file_list_scrollbar_moved(ui_scrollbar_t *, void *, gfx_coord_t);
+
+/** File list scrollbar callbacks */
+static ui_scrollbar_cb_t ui_file_list_scrollbar_cb = {
+        .up = ui_file_list_scrollbar_up,
+        .down = ui_file_list_scrollbar_down,
+        .page_up = ui_file_list_scrollbar_page_up,
+        .page_down = ui_file_list_scrollbar_page_down,
+        .moved = ui_file_list_scrollbar_moved
+};
+
 /** Create file list.
  *
@@ -101 +117 @@
         if (rc != EOK)
                 goto error;
+
+        rc = ui_scrollbar_create(ui_window_get_ui(window), window,
+            ui_sbd_vert, &flist->scrollbar);
+        if (rc != EOK)
+                goto error;
+
+        ui_scrollbar_set_cb(flist->scrollbar, &ui_file_list_scrollbar_cb,
+            (void *) flist);
 
         flist->window = window;
@@ -341 +365 @@
                 entry = ui_file_list_next(entry);
         }
+
+        rc = ui_scrollbar_paint(flist->scrollbar);
+        if (rc != EOK)
+                return rc;
 
         rc = gfx_update(gc);
@@ -406 +434 @@
         gfx_coord_t line_height;
         size_t entry_idx;
+        ui_evclaim_t claim;
         int n;
+
+        claim = ui_scrollbar_pos_event(flist->scrollbar, event);
+        if (claim == ui_claimed)
+                return ui_claimed;
 
         line_height = ui_file_list_entry_height(flist);
@@ -470 +503 @@
 void ui_file_list_set_rect(ui_file_list_t *flist, gfx_rect_t *rect)
 {
+        gfx_rect_t srect;
+
         flist->rect = *rect;
+
+        ui_file_list_scrollbar_rect(flist, &srect);
+        ui_scrollbar_set_rect(flist->scrollbar, &srect);
 }
 
@@ -488 +526 @@
 }
 
+/** Get file list interior rectangle.
+ *
+ * @param flist File list
+ * @param irect Place to store interior rectangle
+ */
 void ui_file_list_inside_rect(ui_file_list_t *flist, gfx_rect_t *irect)
 {
         ui_resource_t *res = ui_window_get_res(flist->window);
+        gfx_rect_t rect;
+        gfx_coord_t width;
 
         if (res->textmode) {
-                *irect = flist->rect;
+                rect = flist->rect;
         } else {
-                ui_paint_get_inset_frame_inside(res, &flist->rect, irect);
-        }
+                ui_paint_get_inset_frame_inside(res, &flist->rect, &rect);
+        }
+
+        if (res->textmode) {
+                width = 1;
+        } else {
+                width = 23;
+        }
+
+        irect->p0 = rect.p0;
+        irect->p1.x = rect.p1.x - width;
+        irect->p1.y = rect.p1.y;
+}
+
+/** Get file list scrollbar rectangle.
+ *
+ * @param flist File list
+ * @param irect Place to store interior rectangle
+ */
+void ui_file_list_scrollbar_rect(ui_file_list_t *flist, gfx_rect_t *srect)
+{
+        ui_resource_t *res = ui_window_get_res(flist->window);
+        gfx_rect_t rect;
+        gfx_coord_t width;
+
+        if (res->textmode) {
+                rect = flist->rect;
+        } else {
+                ui_paint_get_inset_frame_inside(res, &flist->rect, &rect);
+        }
+
+        if (res->textmode) {
+                width = 1;
+        } else {
+                width = 23;
+        }
+
+        srect->p0.x = rect.p1.x - width;
+        srect->p0.y = rect.p0.y;
+        srect->p1 = rect.p1;
+}
+
+/** Compute new position for file list scrollbar thumb.
+ *
+ * @param flist File list
+ * @return New position
+ */
+gfx_coord_t ui_file_list_scrollbar_pos(ui_file_list_t *flist)
+{
+        size_t entries;
+        size_t pglen;
+        size_t sbar_len;
+
+        entries = list_count(&flist->entries);
+        pglen = ui_file_list_page_size(flist);
+        sbar_len = ui_scrollbar_move_length(flist->scrollbar);
+
+        if (entries > pglen)
+                return sbar_len * flist->page_idx / (entries - pglen);
+        else
+                return 0;
+}
+
+/** Update file list scrollbar position.
+ *
+ * @param flist File list
+ */
+void ui_file_list_scrollbar_update(ui_file_list_t *flist)
+{
+        ui_scrollbar_set_pos(flist->scrollbar,
+            ui_file_list_scrollbar_pos(flist));
 }
 
@@ -1030 +1144 @@
                 }
 
+                ui_file_list_scrollbar_update(flist);
                 (void) ui_file_list_paint(flist);
         }
@@ -1083 +1198 @@
 }
 
-/** Move one page up.
+/** Move cursor one page up.
  *
  * @param flist File list
@@ -1124 +1239 @@
         if (flist->page != old_page) {
                 /* We have scrolled. Need to repaint all entries */
+                ui_file_list_scrollbar_update(flist);
                 (void) ui_file_list_paint(flist);
         } else if (flist->cursor != old_cursor) {
@@ -1134 +1250 @@
 }
 
-/** Move one page down.
+/** Move cursor one page down.
  *
  * @param flist File list
@@ -1182 +1298 @@
         if (flist->page != old_page) {
                 /* We have scrolled. Need to repaint all entries */
+                ui_file_list_scrollbar_update(flist);
                 (void) ui_file_list_paint(flist);
         } else if (flist->cursor != old_cursor) {
@@ -1190 +1307 @@
                 (void) gfx_update(gc);
         }
+}
+
+/** Scroll one entry up.
+ *
+ * @param flist File list
+ */
+void ui_file_list_scroll_up(ui_file_list_t *flist)
+{
+        ui_file_list_entry_t *prev;
+
+        prev = ui_file_list_prev(flist->page);
+        if (prev == NULL)
+                return;
+
+        flist->page = prev;
+        assert(flist->page_idx > 0);
+        --flist->page_idx;
+
+        ui_file_list_scrollbar_update(flist);
+        (void) ui_file_list_paint(flist);
+}
+
+/** Scroll one entry down.
+ *
+ * @param flist File list
+ */
+void ui_file_list_scroll_down(ui_file_list_t *flist)
+{
+        ui_file_list_entry_t *next;
+        ui_file_list_entry_t *pgend;
+        size_t i;
+        size_t rows;
+
+        next = ui_file_list_next(flist->page);
+        if (next == NULL)
+                return;
+
+        rows = ui_file_list_page_size(flist);
+
+        /* Find last page entry */
+        pgend = flist->page;
+        for (i = 0; i < rows && pgend != NULL; i++) {
+                pgend = ui_file_list_next(pgend);
+        }
+
+        /* Scroll down by one entry, if the page remains full */
+        if (pgend != NULL) {
+                flist->page = next;
+                ++flist->page_idx;
+        }
+
+        ui_file_list_scrollbar_update(flist);
+        (void) ui_file_list_paint(flist);
+}
+
+/** Scroll one page up.
+ *
+ * @param flist File list
+ */
+void ui_file_list_scroll_page_up(ui_file_list_t *flist)
+{
+        ui_file_list_entry_t *prev;
+        size_t i;
+        size_t rows;
+
+        prev = ui_file_list_prev(flist->page);
+        if (prev == NULL)
+                return;
+
+        rows = ui_file_list_page_size(flist);
+
+        for (i = 0; i < rows && prev != NULL; i++) {
+                flist->page = prev;
+                assert(flist->page_idx > 0);
+                --flist->page_idx;
+                prev = ui_file_list_prev(prev);
+        }
+
+        ui_file_list_scrollbar_update(flist);
+        (void) ui_file_list_paint(flist);
+}
+
+/** Scroll one page down.
+ *
+ * @param flist File list
+ */
+void ui_file_list_scroll_page_down(ui_file_list_t *flist)
+{
+        ui_file_list_entry_t *next;
+        ui_file_list_entry_t *pgend;
+        size_t i;
+        size_t rows;
+
+        next = ui_file_list_next(flist->page);
+        if (next == NULL)
+                return;
+
+        rows = ui_file_list_page_size(flist);
+
+        /* Find last page entry */
+        pgend = flist->page;
+        for (i = 0; i < rows && pgend != NULL; i++) {
+                pgend = ui_file_list_next(pgend);
+        }
+
+        /* Scroll by up to 'rows' entries, keeping the page full */
+        for (i = 0; i < rows && pgend != NULL; i++) {
+                flist->page = next;
+                ++flist->page_idx;
+                next = ui_file_list_next(next);
+                pgend = ui_file_list_next(pgend);
+        }
+
+        ui_file_list_scrollbar_update(flist);
+        (void) ui_file_list_paint(flist);
+}
+
+/** Scroll to a specific entry
+ *
+ * @param flist File list
+ * @param page_idx New index of first entry on the page
+ */
+void ui_file_list_scroll_pos(ui_file_list_t *flist, size_t page_idx)
+{
+        ui_file_list_entry_t *entry;
+        size_t i;
+
+        entry = ui_file_list_first(flist);
+        for (i = 0; i < page_idx; i++) {
+                entry = ui_file_list_next(entry);
+                assert(entry != NULL);
+        }
+
+        flist->page = entry;
+        flist->page_idx = page_idx;
+
+        (void) ui_file_list_paint(flist);
 }
 
@@ -1293 +1547 @@
 }
 
+/** File list scrollbar up button pressed.
+ *
+ * @param scrollbar Scrollbar
+ * @param arg Argument (ui_file_list_t *)
+ */
+static void ui_file_list_scrollbar_up(ui_scrollbar_t *scrollbar, void *arg)
+{
+        ui_file_list_t *flist = (ui_file_list_t *)arg;
+        ui_file_list_scroll_up(flist);
+}
+
+/** File list scrollbar down button pressed.
+ *
+ * @param scrollbar Scrollbar
+ * @param arg Argument (ui_file_list_t *)
+ */
+static void ui_file_list_scrollbar_down(ui_scrollbar_t *scrollbar, void *arg)
+{
+        ui_file_list_t *flist = (ui_file_list_t *)arg;
+        ui_file_list_scroll_down(flist);
+}
+
+/** File list scrollbar page up pressed.
+ *
+ * @param scrollbar Scrollbar
+ * @param arg Argument (ui_file_list_t *)
+ */
+static void ui_file_list_scrollbar_page_up(ui_scrollbar_t *scrollbar, void *arg)
+{
+        ui_file_list_t *flist = (ui_file_list_t *)arg;
+        ui_file_list_scroll_page_up(flist);
+}
+
+/** File list scrollbar page down pressed.
+ *
+ * @param scrollbar Scrollbar
+ * @param arg Argument (ui_file_list_t *)
+ */
+static void ui_file_list_scrollbar_page_down(ui_scrollbar_t *scrollbar,
+    void *arg)
+{
+        ui_file_list_t *flist = (ui_file_list_t *)arg;
+        ui_file_list_scroll_page_down(flist);
+}
+
+/** File list scrollbar moved.
+ *
+ * @param scrollbar Scrollbar
+ * @param arg Argument (ui_file_list_t *)
+ */
+static void ui_file_list_scrollbar_moved(ui_scrollbar_t *scrollbar, void *arg,
+    gfx_coord_t pos)
+{
+        ui_file_list_t *flist = (ui_file_list_t *)arg;
+        size_t entries;
+        size_t pglen;
+        size_t sbar_len;
+        size_t pgstart;
+
+        entries = list_count(&flist->entries);
+        pglen = ui_file_list_page_size(flist);
+        sbar_len = ui_scrollbar_move_length(flist->scrollbar);
+
+        if (entries > pglen)
+                pgstart = (entries - pglen) * pos / (sbar_len - 1);
+        else
+                pgstart = 0;
+
+        ui_file_list_scroll_pos(flist, pgstart);
+}
+
 /** @}
  */