Standalone imp (#2791)

* Moved ui elements to common folder in standalone, and add screen parameters to the api v4

* pass it as a pointer, so if standalone app supports it can change

firmware/standalone/common/ui/ui_text.cpp

@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ *
+ * This file is part of PortaPack.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "ui_text.hpp"
+
+namespace ui {
+
+Glyph Font::glyph(const char c) const {
+    size_t index;
+
+    if (c < c_start) {
+        // Non-display C0 Control characters - map to blank (index 0)
+        return {w, h, data};
+    }
+
+    // Handle gap in glyphs table for C1 Control characters 0x80-0x9F
+    if (c < C1_CONTROL_CHARS_START) {
+        // ASCII chars <0x80:
+        index = c - c_start;
+    } else if (c >= C1_CONTROL_CHARS_START + C1_CONTROL_CHARS_COUNT) {
+        // Latin 1 chars 0xA0-0xFF
+        index = c - c_start - C1_CONTROL_CHARS_COUNT;
+    } else {
+        // C1 Control characters - map to blank
+        return {w, h, data};
+    }
+
+    if (index >= c_count) {  // Latin Extended characters > 0xFF - not supported
+        return {w, h, data};
+    } else {
+        return {w, h, &data[index * data_stride]};
+    }
+}
+
+Dim Font::line_height() const {
+    return h;
+}
+
+Dim Font::char_width() const {
+    return w;
+}
+
+Size Font::size_of(const std::string s) const {
+    Size size;
+
+    for (const auto c : s) {
+        const auto glyph_data = glyph(c);
+        size = {
+            size.width() + glyph_data.w(),
+            std::max(size.height(), glyph_data.h())};
+    }
+
+    return size;
+}
+
+} /* namespace ui */