Diff: Decoders/Font.cpp

Revision:

0:b876cf091464

Child:

1:f7003ec66a51

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Decoders/Font.cpp	Fri Aug 30 17:09:18 2013 +0000
@@ -0,0 +1,92 @@
+/* NeatGUI Library
+ * Copyright (c) 2013 Neil Thiessen
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Font.h"
+
+Font::Font(const char *table)
+{
+    m_FontTable = table;
+    m_Color = 0xFFFFFFFF;
+}
+
+Font::Font(const char *table, unsigned int color)
+{
+    m_FontTable = table;
+    m_Color = color;
+}
+
+BitmapImage Font::glyph(char c)
+{
+    while(1) {
+        //Skip the height and numChars bytes
+        const char *ptr = m_FontTable + 2;
+
+        //Search for the character in the font table
+        for(int i = 0; i < m_FontTable[0]; i++) {
+            if (*ptr == c) {
+                //Return the image
+                return BitmapImage(m_FontTable + ptr[1] * 0xFF + ptr[2], m_Color);
+            }
+            ptr += 3;
+        }
+
+        //The character wasn't found, replace it with a space
+        c = ' ';
+    }
+}
+
+unsigned int Font::color(void)
+{
+    return m_Color;
+}
+
+void Font::color(unsigned int c)
+{
+    m_Color = c;
+}
+
+int Font::height(void)
+{
+    return m_FontTable[1];
+}
+
+int Font::measureString(const char *str)
+{
+    int i = 0;
+    int slen = 0;
+
+    //Find the length in pixels of the whole string
+    while (str[i] != NULL) {
+        slen += glyph(*str).width();
+        i++;
+    }
+
+    return slen;
+}
+
+int Font::measureWord(const char *str)
+{
+    int i = 0;
+    int wlen = 0;
+
+    //Find the length in pixels of the next word (separated by whitespace)
+    while ((str[i] > ' ') && (str[i] <= 0x7E)) {
+        wlen += glyph(*str).width();
+        i++;
+    }
+
+    return wlen;
+}