Создание программы-редактора схем

            FontFamily ff = (FontFamily)toolStripComboBox1.SelectedItem; 

            if (ff.IsStyleAvailable(FontStyle.Regular))

                fnt = new Font(ff, fontSize, FontStyle.Regular); 

            else if (ff.IsStyleAvailable(FontStyle.Bold))

                fnt = new Font(ff, fontSize, FontStyle.Bold); 

            else if (ff.IsStyleAvailable(FontStyle.Italic))

                fnt = new Font(ff, fontSize, FontStyle.Italic); 

            else if (ff.IsStyleAvailable(FontStyle.Strikeout))

                fnt = new Font(ff, fontSize, FontStyle.Strikeout); 

            else if (ff.IsStyleAvailable(FontStyle.Underline))

                fnt = new Font(ff, fontSize, FontStyle.Underline); 

            workAreaForm.drawFont = fnt;

            workAreaForm.update();

        } 

        private void toolStripComboBox2_SelectedIndexChanged(object sender, EventArgs e)

        {

            if (this.workAreaForm == null)

                return; 

            this.fontSize = int.Parse(toolStripComboBox2.SelectedItem.ToString()); 

            Font fnt = ChangeFontSize(workAreaForm.drawFont, fontSize); 

            workAreaForm.drawFont = fnt;

            workAreaForm.update();

        } 

        #endregion 
 
 

        private void toolStripButton1_CheckStateChanged(object sender, EventArgs e)

        {

            if (toolStripButton1.Checked)

                workAreaForm.needGrid = true;

            else

                workAreaForm.needGrid = false; 

            workAreaForm.update();

        } 
 

        private void toolStripButton2_CheckStateChanged(object sender, EventArgs e)

        {

            if (toolStripButton2.Checked)

            {

                workAreaForm.needBlocksAlign = true;

                workAreaForm.alignBlocks();

                workAreaForm.update();

            }

            else

                workAreaForm.needBlocksAlign = false;

        } 
 

        private void toolStripButton3_Click(object sender, EventArgs e)

        {

            foreach (ArrowTemplate arrow in workAreaForm.arrows)

            {

                if (arrow.isMovable)

                {

                    bool state = arrow.needEndCap;

                    state = !state;

                    arrow.changeArrowEndCap(state, false);

                }

            }

            workAreaForm.update();

        } 
 

        private void toolStripTextBox1_LostFocus(object sender, EventArgs e)

        {

            int size; 

            try

            {

                size = int.Parse(toolStripTextBox1.Text);

            }

            catch (System.Exception ex)

            {

                MessageBox.Show("Ошибка в размере сетки\n" + ex.Message, "Ошибка");

                toolStripTextBox1.Text = Convert.ToString(workAreaForm.gridBlockSize);

                return;

            } 
 

            if (size > 200)

            {

                workAreaForm.gridBlockSize = 200;

                toolStripTextBox1.Text = Convert.ToString(200);

            }

            else if (size < 15)

            {

                workAreaForm.gridBlockSize = 15;

                toolStripTextBox1.Text = Convert.ToString(15);

            }

            else

            {

                workAreaForm.gridBlockSize = size;

            } 
 

            if (workAreaForm.needBlocksAlign)

                workAreaForm.alignBlocks(); 

            workAreaForm.update();

        } 
 
 

        private void lineThicknesstoolStripTextBox_LostFocus(object sender, EventArgs e)

        {

            int thickness; 

            try

            {

                thickness = int.Parse(lineThicknesstoolStripTextBox.Text);

                workAreaForm.thickness = thickness;

            }

            catch (System.Exception ex)

            {

                MessageBox.Show("Ошибка в толщине линий\n" + ex.Message, "Ошибка");

                toolStripTextBox1.Text = Convert.ToString(workAreaForm.gridBlockSize);

                return;

            } 

            if (thickness > 5)

            {

                thickness = 5;

                workAreaForm.thickness = 5;

                lineThicknesstoolStripTextBox.Text = Convert.ToString(1);

            }

            else if (thickness < 1)

            {

                thickness = 1;

                workAreaForm.thickness = 1;

                lineThicknesstoolStripTextBox.Text = Convert.ToString(1);

            } 

            for (int i = 0; i < workAreaForm.arrows.Count; i++)

            {

                workAreaForm.arrows[i].changeLineThickness(thickness);

            } 

            workAreaForm.update();

        } 

        #region saving and opening xml files 

        private void fileSaveToolStripMenuItem_Click(object sender, EventArgs e)

        {

            //////////////////////////////////////////////////////////////////////////

            //сохранение параметров//

            config.gridBlockSize = workAreaForm.gridBlockSize;

            config.needBlocksAlign = workAreaForm.needBlocksAlign;

            config.needGrid = workAreaForm.needGrid;

            config.shapes = workAreaForm.blocks;

            config.arrows = workAreaForm.arrows;

            ////////////////////////////////////////////////////////////////////////// 

            saveFileDialog1.Filter = "xml files (*.xml)|*.xml|All files (*.*)|*.*"; 

            string fileName = string.Empty; 

            if (saveFileDialog1.ShowDialog() == DialogResult.OK)

                fileName = saveFileDialog1.FileName; 

            if (fileName == String.Empty)

                return; 

            FileStream fStream = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None); 

            XmlSerializer xmlFormat = new XmlSerializer(

                typeof(Configuration),

                new Type[]

                {

                    typeof(Point[]),

                    typeof(ArrowNodePoint[]),

                   

                    typeof(ArrowTemplate[]), 

                    typeof(List<BlockTemplate>),

                    typeof(List<ProcessBlock>),

                    typeof(List<DataBlock>),

                    typeof(List<DecisionBlock>),

                    typeof(List<RAM_Block>),

                    typeof(List<SerialAcessMemoryBlock>),

                    typeof(List<ManualInputBlock>),

                    typeof(List<PredefinedProcessBlock>),

                    typeof(List<ManualOperationBlock>),

                    typeof(List<PreparationBlock>),

                    typeof(List<LoopStartBlock>),

                    typeof(List<LoopEndBlock>),

                    typeof(List<DocumentBlock>),

                   typeof(List<MemoryWithDirectAcessBlock>),

                    typeof(List<DataStorageBlock>),

                    typeof(List<ExternalDataBlock>),

                    typeof(List<TerminatorBlock>),

                    typeof(List<CommentLeftBlock>),

                    typeof(List<CommentRightBlock>), 

                    typeof(List<ArrowTemplate>),

                    typeof(List<ArrowCurveHorizontal>),

                    typeof(List<ArrowCurveVertical>),

                    typeof(List<ArrowHorizontal>),

                    typeof(List<ArrowVertical>)

                }

            ); 
 

            xmlFormat.Serialize(fStream, config);

            fStream.Close();

        } 
 

        private void openFileToolStripMenuItem_Click(object sender, EventArgs e)

        {

            string fileName = String.Empty; 

            if (openFileDialog1.ShowDialog() == DialogResult.OK)

                fileName = openFileDialog1.FileName; 

            if (fileName == String.Empty)    //user didn't select a file

                return; 
 

            FileStream fStream = File.OpenRead(fileName); 

            XmlSerializer xmlFormat = new XmlSerializer(

                typeof(Configuration),

                new Type[]

                {

                    typeof(Point[]),

                    typeof(ArrowNodePoint[]),

                   

                    typeof(ArrowTemplate[]), 

                    typeof(List<BlockTemplate>),

                    typeof(List<ProcessBlock>),

                    typeof(List<DataBlock>),

                    typeof(List<DecisionBlock>),

                    typeof(List<RAM_Block>),

                    typeof(List<SerialAcessMemoryBlock>),

                    typeof(List<ManualInputBlock>),

                    typeof(List<PredefinedProcessBlock>),

                    typeof(List<ManualOperationBlock>),

                    typeof(List<PreparationBlock>),

                    typeof(List<LoopStartBlock>),

                    typeof(List<LoopEndBlock>),

                    typeof(List<DocumentBlock>),

                    typeof(List<MemoryWithDirectAcessBlock>),

                    typeof(List<DataStorageBlock>),

                    typeof(List<ExternalDataBlock>),

                    typeof(List<TerminatorBlock>),

                    typeof(List<CommentLeftBlock>),

                    typeof(List<CommentRightBlock>), 

                    typeof(List<ArrowTemplate>),

                    typeof(List<ArrowCurveHorizontal>),

                    typeof(List<ArrowCurveVertical>),

                    typeof(List<ArrowHorizontal>),

                    typeof(List<ArrowVertical>)

                }