1 files changed, 162 insertions, 0 deletions
diff --git a/example/mainwindow.cpp b/example/mainwindow.cpp
new file mode 100644
index 0000000..81f82be
--- /dev/null
+++ b/example/mainwindow.cpp
@@ -0,0 +1,162 @@
+/*
+** Arabtype Copyright 2012-2015(c) Wael El Oraiby. All Rights Reserved
+**
+** This file is in public domain
+*/
+
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include <QtGui>
+#include <cassert>
+#include <iostream>
+#include <vector>
+#include <string>
+#include <fstream>
+
+#include "../arabtype.h"
+
+FT_Library MainWindow::ftlib__	= NULL;
+
+
+MainWindow::MainWindow(QWidget *parent) :
+	QMainWindow(parent),
+	ui__(new Ui::MainWindow)
+{
+	ui__->setupUi(this);
+
+	int	width	= 480;
+	int	height	= 392;
+	int	font_size	= 24;
+
+	std::ifstream	ifs("arabic_test.txt");
+	assert( ifs.is_open() );
+	std::vector<uchar>	arabic_string;
+
+	while( ifs.good() )
+	{
+		uchar ch = ifs.get();
+		if( ifs.good() )
+			arabic_string.push_back(ch);
+	}
+
+	std::cout << "size: " << arabic_string.size() << std::endl;
+	ifs.close();
+
+
+	uint32_t*	arabic_cp	= new uint32_t[arabic_string.size()];
+	uint32_t	acp_size	= get_presentation_form_b(arabic_string.size(), &arabic_string[0], arabic_string.size() * sizeof(uint32_t), arabic_cp);
+
+	for( size_t i = 0; i < acp_size; ++i )
+		std::cout << "0x" << std::hex << arabic_cp[i] << std::endl;
+
+	std::cout << std::dec;
+
+	if( !ftlib__ )
+	{
+		FT_Error	error = FT_Init_FreeType(&ftlib__);
+		assert( !error && "Error loading freetype" );
+	}
+
+	// load the font
+	FT_Face		face;
+	FT_Error	error;
+
+	error		= FT_New_Face(ftlib__, "ae_Tholoth.ttf", 0, &face);
+	assert( !error && "unable to load font file" );
+
+	// set font size
+	error		= FT_Set_Pixel_Sizes(face, 0, font_size);
+	assert( !error && "Error setting font size" );
+
+	// setup glyph
+	// render chars
+	FT_GlyphSlot	slot		= face->glyph;
+
+	FT_Int32	load_flags	= FT_LOAD_DEFAULT | FT_LOAD_FORCE_AUTOHINT;
+	FT_Render_Mode	render_flags	= FT_RENDER_MODE_NORMAL;
+
+
+	data__	= new uchar[width * height * 4];
+	memset(data__, 0, width * height * 4);
+	int	col	= width - font_size;
+	int	line	= font_size;
+	QImage	img(data__, width, height, QImage::Format_RGB32);
+	// render the arabic glyphs
+	for( size_t idx = 0; idx < acp_size; ++idx )
+	{
+		uint ch	= arabic_cp[idx];
+
+		if( ch == 0xA ) {
+			line	+= font_size + 5;
+			col	= width - font_size;
+			continue;
+		}
+
+		if ( ch == 0xC ) {
+			continue;
+		}
+
+		if ( ch == -1 ) {
+			continue;
+		}
+
+		assert(ch != 0);
+
+		int glyph_index	= FT_Get_Char_Index(face, ch);
+		assert( glyph_index && "invalid character" );
+
+		error	= FT_Load_Glyph(face, glyph_index, load_flags);
+		assert( !error && "couldn't load glyph" );
+
+		error = FT_Render_Glyph(slot, render_flags);
+		assert( !error && "couldn't render glyph" );
+
+		FT_Glyph glyph;
+		FT_Get_Glyph(slot, &glyph);
+
+		FT_BBox	box;
+		FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_TRUNCATE, &box);
+
+		int	temp_col	= col - (slot->advance.x >> 6);
+
+		for( int y = 0; y < slot->bitmap.rows; y++ )
+		{
+			for( int x = 0; x < slot->bitmap.width; x++ )
+			{
+				uchar	co	= slot->bitmap.buffer[x + y * slot->bitmap.pitch];
+				if( co && x + temp_col < width && x + temp_col >= 0 )
+				{
+					uint rgb = img.pixel(x + temp_col + slot->bitmap_left, y - slot->bitmap_top + line);
+					img.setPixel(x + temp_col + slot->bitmap_left, y - slot->bitmap_top + line, rgb | qRgb(co, co, co));
+				}
+
+				//std::cout << uint(co) << " ";
+			}
+			//std::cout << std::endl;
+		}
+
+		//std::cout << std::endl;
+
+		col -= slot->advance.x >> 6;
+
+		FT_Done_Glyph(glyph);
+	}
+
+	delete[] arabic_cp;
+
+	QPixmap	pixmap = QPixmap::fromImage(img);
+	ui__->label->setPixmap(pixmap);
+
+	FT_Done_Face(face);
+}
+
+MainWindow::~MainWindow()
+{
+	FT_Done_FreeType(ftlib__);
+	delete ui__;
+	delete data__;
+}
+
+void MainWindow::paintEvent ( QPaintEvent * event )
+{
+}