Revision 3:1ddc4aa1e5cb, committed 2016-11-11

Comitter:

karpent

Date:

Fri Nov 11 12:05:16 2016 +0000

Parent:

2:02b7b78e8510

Commit message:

Missing method DrawChar() added, DrawText() corrected.

Changed in this revision

--- a/Canvas.cpp	Thu Nov 10 15:34:43 2016 +0000
+++ b/Canvas.cpp	Fri Nov 11 12:05:16 2016 +0000
@@ -141,24 +141,39 @@
 }
 
 
+void Canvas::DrawChar(int posX, int posY, char ch)
+{
+    if (ch < 32)
+        return;
+
+    const sFONT *font = _selectedFont.GetSystemFont();
+    const uint8_t rowLen = font->Width/8 + 1;
+    const uint8_t *pByte = font->table + (ch-32) * font->Height * rowLen;
+
+    for (int rowY = 0; rowY < font->Height; rowY++) {
+        for (int bx = 0; bx < rowLen; bx++) {
+            for (int shift = 0; shift < 8; shift++) {
+                DrawPoint(
+                    posX + bx * 8 + shift,
+                    posY + rowY, 
+                    *pByte & (0x80 >> shift)
+                );
+            }
+
+            // Get next byte
+            pByte++;
+        }
+    }
+}
+
+
 void Canvas::DrawText(int posX, int posY, char * str)
 {
-    const uint8_t *table = _selectedFont.GetSystemFont()->table;
-
     // Draw text horizontaly
-    int fontWidth = _selectedFont.Width();
-    int fontHeight = _selectedFont.Height();
     int x = posX;
 
-    uint8_t charLineBytesCount = 1 + fontWidth / 8;
-    //uint8_t charDataLen = fontHeight * charLineBytesCount;
-
-    for(int i=0; i < strlen(str); i++) {
-        int y = posY;
-        
-        // TODO: Draw character
-        DrawPoint(x, y, _drawColor);
-
-        x += fontWidth;
+    for (int i = 0; i < strlen(str); i++) {
+        DrawChar(x, posY, str[i]);
+        x += _selectedFont.GetSystemFont()->Width;
     }
 }

--- a/Canvas.h	Thu Nov 10 15:34:43 2016 +0000
+++ b/Canvas.h	Fri Nov 11 12:05:16 2016 +0000
@@ -128,6 +128,14 @@
     bool IsSet();
     
     /// <summary>
+    /// Draws single character using actual font type and size.
+    /// </summary>
+    /// <param name="posX">The position x.</param>
+    /// <param name="posY">The position y.</param>
+    /// <param name="ch">The character.</param>
+    void DrawChar(int posX, int posY, char ch);
+    
+    /// <summary>
     /// Draws the text using actual font type and size.
     /// </summary>
     /// <param name="posX">The position x.</param>
@@ -137,7 +145,7 @@
 
 private:
     /// <summary>
-    /// Resets this instance.
+    /// Resets canvas properties.
     /// </summary>
     void Reset();