Add initial version of font::print_wrap

graphics.PrintWrap is now also deprecated. An advantage of the new
version (with flags) is that it'll be possible to do things like put
a border around wrapped text, wrap text at larger scales, etc, but
these things don't work perfectly yet.

This commit also has some other fixes, like the default advance of
6 pixels for characters 0x00-0x1F in 8x8 fonts.

desktop_version/src/Font.cpp

@@ -7,6 +7,7 @@
 #include "Constants.h"
 #include "FileSystemUtils.h"
 #include "Graphics.h"
+#include "Localization.h"
 #include "UtilityClass.h"
 #include "XMLUtils.h"
 
@@ -174,6 +175,7 @@ static void load_font(Font* f, const char* name)
      * font.txt takes priority over <chars> in the XML.
      * If neither exist, it's just ASCII. */
     bool charset_loaded = false;
+    bool special_loaded = false;
     unsigned char* charmap = NULL;
     size_t length;
     if (FILESYSTEM_areAssetsInSameRealDir(name_png, name_txt))
@@ -259,6 +261,7 @@ static void load_font(Font* f, const char* name)
                     }
                 }
             }
+            special_loaded = true;
         }
     }
 
@@ -266,11 +269,25 @@ static void load_font(Font* f, const char* name)
     {
         /* If we don't have font.txt and no <chars> tag either,
          * this font is 2.2-and-below-style plain ASCII. */
-        for (uint8_t codepoint = 0x00; codepoint < 0x80; codepoint++)
+        for (uint32_t codepoint = 0x00; codepoint < 0x80; codepoint++)
         {
             add_glyphinfo(f, codepoint, codepoint);
         }
     }
+
+    if (!special_loaded && f->glyph_w == 8 && f->glyph_h == 8)
+    {
+        /* If we don't have <special>, and the font is 8x8,
+         * 0x00-0x1F will be less wide because that's how it has always been. */
+        for (uint32_t codepoint = 0x00; codepoint < 0x20; codepoint++)
+        {
+            GlyphInfo* glyph = get_glyphinfo(f, codepoint);
+            if (glyph != NULL)
+            {
+                glyph->advance = 6;
+            }
+        }
+    }
 }
 
 void load_main(void)
@@ -442,4 +459,63 @@ void print(
     }
 }
 
+int print_wrap(
+    const uint32_t flags,
+    const int x,
+    int y,
+    const std::string& text,
+    const uint8_t r,
+    const uint8_t g,
+    const uint8_t b,
+    int linespacing /*= -1*/,
+    int maxwidth /*= -1*/
+)
+{
+    if (linespacing == -1)
+    {
+        linespacing = 10;
+    }
+    linespacing = SDL_max(linespacing, loc::get_langmeta()->font_h);
+
+    if (maxwidth == -1)
+    {
+        maxwidth = 304;
+    }
+
+    // TODO look through all the flags
+
+    const char* str = text.c_str();
+    // This could fit 64 non-BMP characters onscreen, should be plenty
+    char buffer[256];
+    size_t start = 0;
+
+    if (graphics.flipmode)
+    {
+        // Correct for the height of the resulting print.
+        size_t len = 0;
+        while (graphics.next_wrap(&start, &len, &str[start], maxwidth))
+        {
+            y += linespacing;
+        }
+        y -= linespacing;
+        start = 0;
+    }
+
+    while (graphics.next_wrap_s(buffer, sizeof(buffer), &start, str, maxwidth))
+    {
+        print(flags, x, y, buffer, r, g, b);
+
+        if (graphics.flipmode)
+        {
+            y -= linespacing;
+        }
+        else
+        {
+            y += linespacing;
+        }
+    }
+
+    return y + linespacing;
+}
+
 } // namespace font

desktop_version/src/Font.h

@@ -106,7 +106,23 @@ void destroy(void);
 
 int get_advance(const Font* f, uint32_t codepoint); // TODO de-api
 
-void print(uint32_t flags, int x, int y, const std::string& text, uint8_t r, uint8_t g, uint8_t b);
+void print(
+    uint32_t flags,
+    int x,
+    int y,
+    const std::string& text,
+    uint8_t r, uint8_t g, uint8_t b
+);
+
+int print_wrap(
+    uint32_t flags,
+    int x,
+    int y,
+    const std::string& text,
+    uint8_t r, uint8_t g, uint8_t b,
+    int linespacing = -1,
+    int maxwidth = -1
+);
 
 } // namespace font
 

desktop_version/src/Graphics.cpp

@@ -443,7 +443,7 @@ bool Graphics::next_wrap_s(
 int Graphics::PrintWrap(
     const int x,
     int y,
-    std::string s,
+    const std::string& text,
     const int r,
     const int g,
     const int b,
@@ -451,50 +451,11 @@ int Graphics::PrintWrap(
     int linespacing /*= -1*/,
     int maxwidth /*= -1*/
 ) {
-    if (linespacing == -1)
-    {
-        linespacing = 10;
-    }
-    linespacing = SDL_max(linespacing, loc::get_langmeta()->font_h);
-
-    if (maxwidth == -1)
-    {
-        maxwidth = 304;
-    }
-
-    const char* str = s.c_str();
-    /* Screen width is 320 pixels. The shortest a char can be is 6 pixels wide.
-     * 320 / 6 is 54, rounded up. 4 bytes per char. */
-    char buffer[54*4 + 1];
-    size_t start = 0;
-
-    if (flipmode)
-    {
-        /* Correct for the height of the resulting print. */
-        size_t len = 0;
-        while (next_wrap(&start, &len, &str[start], maxwidth))
-        {
-            y += linespacing;
-        }
-        y -= linespacing;
-        start = 0;
-    }
-
-    while (next_wrap_s(buffer, sizeof(buffer), &start, str, maxwidth))
-    {
-        Print(x, y, buffer, r, g, b, cen);
-
-        if (flipmode)
-        {
-            y -= linespacing;
-        }
-        else
-        {
-            y += linespacing;
-        }
-    }
-
-    return y + linespacing;
+    // DEPRECATED
+    if (cen)
+        return font::print_wrap(PR_CEN, -1, y, text, r, g, b, linespacing /*= -1 */, maxwidth /*= -1 */);
+    else
+        return font::print_wrap(0, x, y, text, r, g, b, linespacing /*= -1 */, maxwidth /*= -1 */);
 }
 
 

desktop_version/src/Graphics.h

@@ -210,7 +210,7 @@ public:
 
     bool next_wrap_s(char buffer[], size_t buffer_size, size_t* start, const char* str, int maxwidth);
 
-    int PrintWrap(int x, int y, std::string s, int r, int g, int b, bool cen = false, int linespacing = -1, int maxwidth = -1);
+    int PrintWrap(int x, int y, const std::string& s, int r, int g, int b, bool cen = false, int linespacing = -1, int maxwidth = -1);
 
     void bprint(int x, int y, const std::string& t, int r, int g, int b, bool cen = false);