1 files changed, 64 insertions, 0 deletions
diff --git a/code/fe310/eos/eve/screen/page.c b/code/fe310/eos/eve/screen/page.c
new file mode 100644
index 0000000..f703bd6
--- /dev/null
+++ b/code/fe310/eos/eve/screen/page.c
@@ -0,0 +1,64 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#include "screen.h"
+#include "tile.h"
+#include "page.h"
+
+#include "widget/widget.h"
+
+void eve_page_init(EVEPage *page, EVETile *tile, eve_canvas_touch_t touch, eve_canvas_draw_t draw, eve_page_open_t open, eve_page_close_t close) {
+    memset(page, 0, sizeof(EVEPage));
+    page->tile = tile;
+    page->handle_evt = eve_page_handle_evt;
+}
+
+void eve_page_focus(EVEPage *page, EVEPageFocus *focus) {
+    uint16_t tile_w, tile_h;
+
+    if (focus->w == NULL) return;
+    eve_tile_get_pos(page->tile, NULL, NULL, &tile_w, &tile_h);
+
+    if (focus->f.x < page->win_x) {
+        page->win_x -= page->win_x - focus->f.x;
+    }
+    if (focus->f.y < page->win_y) {
+        page->win_y -= page->win_y - focus->f.y;
+    }
+    if ((focus->f.x + focus->f.w) > (page->win_x + tile_w)) {
+        page->win_x += (focus->f.x + focus->f.w) - (page->win_x + tile_w);
+    }
+    if ((focus->f.y + focus->f.h) > (page->win_y + tile_h)) {
+        page->win_y += (focus->f.y + focus->f.h) - (page->win_y + tile_h);
+    }
+}
+
+void eve_page_widget_focus(EVEPageFocus *focus, EVEWidget *widget) {
+    focus->w = widget;
+    focus->f.x = widget->x;
+    focus->f.y = widget->y;
+    focus->f.w = widget->w;
+    focus->f.h = widget->h;
+}
+
+int eve_page_widget_visible(EVEPage *page, EVEWidget *widget) {
+    uint16_t tile_w, tile_h;
+    eve_tile_get_pos(page->tile, NULL, NULL, &tile_w, &tile_h);
+
+    if (((widget->x + widget->w) >= page->win_x) && ((widget->y + widget->h) >= page->win_y) && (widget->x <= (page->win_x + tile_w)) && (widget->y <= (page->win_y + tile_h))) return 1;
+    return 0;
+}
+
+void eve_page_handle_evt(EVEPage *page, struct EVEWidget *widget, EVETouch *touch, uint16_t evt, uint8_t tag0, int touch_idx) {
+    /*
+    if (evt & EVE_TOUCH_ETYPE_TRACK_Y) {
+        // do scroll
+    } else {
+        // go back / forward
+    }
+    */
+}
+