X-Git-Url: http://git.localhorst.tv/?a=blobdiff_plain;f=src%2Fgraphics%2FFont.cpp;h=ba5c64d4dbdcf29d79fc671464269d33bdc7cdc8;hb=cc3d698b8c1ad09d7a3f9e3f28bc84e0ac1735ea;hp=c68031065b717486f55d06bb589d124b84d0228a;hpb=679b9e39c7680fd46482589f37f0a225032103b7;p=l2e.git

diff --git a/src/graphics/Font.cpp b/src/graphics/Font.cpp
index c680310..ba5c64d 100644
--- a/src/graphics/Font.cpp
+++ b/src/graphics/Font.cpp
@@ -1,12 +1,6 @@
-/*
- * Font.cpp
- *
- *  Created on: Aug 8, 2012
- *      Author: holy
- */
-
 #include "Font.h"
 
+#include "../loader/Interpreter.h"
 #include "../loader/TypeDescription.h"
 
 #include <cmath>
@@ -14,11 +8,41 @@
 
 using geometry::Vector;
 using loader::FieldDescription;
+using loader::Interpreter;
 using loader::TypeDescription;
 using std::pow;
 
 namespace graphics {
 
+int Font::StringWidth(const char *s) const {
+	int width(0), col(0);
+	for (int i(0); s[i]; ++i) {
+		if (s[i] == '\n') {
+			if (width < col) {
+				width = col;
+			}
+			col = 0;
+		} else {
+			++col;
+		}
+	}
+	return (width < col ? col : width) * CharWidth();
+}
+
+int Font::StringHeight(const char *s) const {
+	if (*s == '\0') {
+		return 0;
+	}
+	int height(1);
+	for (; *s; ++s) {
+		if (*s == '\n') {
+			++height;
+		}
+	}
+	return height * CharHeight();
+}
+
+
 void Font::DrawChar(char c, SDL_Surface *dest, const Vector<int> &position) const {
 	if (!sprite) return;
 
@@ -27,16 +51,39 @@ void Font::DrawChar(char c, SDL_Surface *dest, const Vector<int> &position) cons
 	sprite->Draw(dest, position, col, row);
 }
 
-void Font::DrawString(const char *s, SDL_Surface *dest, const Vector<int> &positionIn, int maxChars) const {
+void Font::DrawString(const char *s, SDL_Surface *dest, const Vector<int> &positionIn, int maxWidth) const {
 	if (!sprite) return;
 
 	Vector<int> position(positionIn);
+	Vector<int> lineHead(positionIn);
 	Vector<int> step(CharWidth(), 0);
-	for (int i(0); s[i] && (maxChars <= 0 || i < maxChars); ++i, position += step) {
-		DrawChar(s[i], dest, position);
+	Vector<int> lineBreak(0, CharHeight());
+	for (int i(0), col(0); s[i] && (maxWidth <= 0 || col < maxWidth); ++i) {
+		if (s[i] == '\n') {
+			lineHead += lineBreak;
+			position = lineHead;
+			col = 0;
+		} else {
+			DrawChar(s[i], dest, position);
+			position += step;
+			++col;
+		}
 	}
 }
 
+void Font::DrawStringRight(const char *s, SDL_Surface *dest, const Vector<int> &positionIn, int maxWidth) const {
+	// NOTE: this does not handle line breaks
+	if (!sprite) return;
+
+	int length(0);
+	while (length < maxWidth && s[length] != '\0') {
+		++length;
+	}
+	Vector<int> position(positionIn.X() - length * CharWidth(), positionIn.Y());
+
+	DrawString(s, dest, position, length);
+}
+
 void Font::DrawDigit(int digit, SDL_Surface *dest, const Vector<int> &position) const {
 	if (!sprite) return;
 
@@ -74,19 +121,34 @@ void Font::DrawNumber(int numberIn, SDL_Surface *dest, const Vector<int> &positi
 	}
 }
 
+void Font::DrawNumberRight(int number, SDL_Surface *dest, const Vector<int> &positionIn, int digits) const {
+	if (!sprite) return;
+
+	Vector<int> position(positionIn.X() - digits * CharWidth(), positionIn.Y());
+
+	DrawNumber(number, dest, position, digits);
+}
+
 
 void Font::CreateTypeDescription() {
 	Font f;
-	TypeDescription &td(TypeDescription::CreateOrGet("Font"));
 
+	TypeDescription &td(TypeDescription::Create(TYPE_ID, "Font"));
+	td.SetDescription(
+			"Simple font with fixed-width characters using a sprite for rendering.\n"
+			"Characters from strings are mapped as follows:\n"
+			"<pre>sprite column = column offset + (character % 16)\n"
+			"sprite row    = row    offset + (character / 16)</pre>");
+	td.SetConstructor(&Construct);
 	td.SetSize(sizeof(Font));
 
-	int numberId(TypeDescription::GetTypeId("Number"));
-	int spriteId(TypeDescription::GetTypeId("Sprite"));
+	td.AddField("sprite", FieldDescription(((char *)&f.sprite) - ((char *)&f), Sprite::TYPE_ID).SetReferenced().SetDescription("a sprite where each tile corresponds to a character"));
+	td.AddField("columnoffset", FieldDescription(((char *)&f.colOffset) - ((char *)&f), Interpreter::NUMBER_ID).SetDescription("offset of the column of the first character"));
+	td.AddField("rowoffset", FieldDescription(((char *)&f.rowOffset) - ((char *)&f), Interpreter::NUMBER_ID).SetDescription("offset of the row of the first character"));
+}
 
-	td.AddField("sprite", FieldDescription(((char *)&f.sprite) - ((char *)&f), spriteId, true));
-	td.AddField("columnoffset", FieldDescription(((char *)&f.colOffset) - ((char *)&f), numberId, false));
-	td.AddField("rowoffset", FieldDescription(((char *)&f.rowOffset) - ((char *)&f), numberId, false));
+void Font::Construct(void *data) {
+	new (data) Font;
 }
 
 }