-/*
- * Font.cpp
- *
- * Created on: Aug 8, 2012
- * Author: holy
- */
-
#include "Font.h"
-#include "../geometry/operators.h"
-#include "../geometry/Vector.h"
+#include "../loader/Interpreter.h"
+#include "../loader/TypeDescription.h"
#include <cmath>
+#include <cstring>
+#include <iostream>
-using geometry::Point;
-using geometry::Vector;
+using math::Vector;
+using loader::FieldDescription;
+using loader::Interpreter;
+using loader::TypeDescription;
using std::pow;
namespace graphics {
-void Font::DrawDigit(int digit, SDL_Surface *dest, Point<int> position) const {
- sprite->Draw(dest, position, digitsCol + digit, digitsRow);
+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;
+
+ int col(colOffset + (c % 0x10));
+ int row(rowOffset + (c / 0x10));
+ sprite->Draw(dest, position, col, row);
+}
+
+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);
+ 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);
+ if (maxWidth > 0) {
+ while (length < maxWidth && s[length] != '\0') {
+ ++length;
+ }
+ } else {
+ length = std::strlen(s);
+ }
+ 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;
+
+ DrawChar(digit + 0x30, dest, position);
}
-void Font::DrawNumber(int numberIn, SDL_Surface *dest, Point<int> positionIn, int digits) const {
+void Font::DrawNumber(int numberIn, SDL_Surface *dest, const Vector<int> &positionIn, int digits) const {
+ if (!sprite) return;
+
int number(numberIn);
if (digits > 0 && numberIn >= pow(10.0, digits)) {
numberIn = pow(10.0, digits) - 1;
}
- Point<int> position(positionIn);
+ Vector<int> position(positionIn);
Vector<int> step(sprite->Width(), 0);
if (digits > 0) {
int i(digits - 1);
- while (number < pow(10.0, i)) {
+ while (number < pow(10.0, i) && i > 0) {
position += step;
--i;
}
}
}
+void Font::DrawNumberRight(int number, SDL_Surface *dest, const Vector<int> &positionIn, int digits) const {
+ if (!sprite) return;
+
+ Vector<int> position(positionIn);
+ if (digits > 0) {
+ position.X() -= digits * CharWidth();
+ } else if (number == 0) {
+ position.X() -= CharWidth();
+ } else {
+ for (int i = number; i > 0; i /= 10) {
+ position.X() -= CharWidth();
+ }
+ }
+
+ DrawNumber(number, dest, position, digits);
+}
+
+
+void Font::CreateTypeDescription() {
+ Font f;
+
+ 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));
+
+ 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"));
+}
+
+void Font::Construct(void *data) {
+ new (data) Font;
+}
+
}