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項(xiàng)目運(yùn)行效果

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實(shí)現(xiàn)

新建一個(gè)窗體頁(yè)面，設(shè)計(jì)頁(yè)面布局如下

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其中圖片列表是ListBox,透明度設(shè)置是TrackBar,水印位置是ComboBox,下面窗口是PictureBox。

首先加載圖片按鈕的點(diǎn)擊事件中

private void btnLoadImg_Click(object sender, EventArgs e){if (openFileDialog1.ShowDialog() == DialogResult.OK){lbImgList.Items.Clear();ImgArray = openFileDialog1.FileNames;string ImgP = ImgArray[0].ToString();ImgP = ImgP.Remove(ImgP.LastIndexOf("\\"));ImgDirectoryPath = ImgP;for (int i = 0; i < ImgArray.Length; i++){string ImgPath = ImgArray[i].ToString();string ImgName = ImgPath.Substring(ImgPath.LastIndexOf("\\") + 1, ImgPath.Length - ImgPath.LastIndexOf("\\") - 1);lbImgList.Items.Add(ImgName);}tsslStatus.Text = "圖片總數(shù)：" + lbImgList.Items.Count;}}

預(yù)覽按鈕的點(diǎn)擊事件中，需要顯示預(yù)覽頁(yè)面，首先新建一個(gè)預(yù)覽頁(yè)面Form2,頁(yè)面上放一個(gè)PictureBox

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms;namespace IMGwatermark {public partial class Form2 : Form{public Form2(){InitializeComponent();}public Image ig = null;private void Form2_Load(object sender, EventArgs e){pictureBox1.Image = ig;}} }

在預(yù)覽按鈕的點(diǎn)擊事件中

private void btnPreview_Click(object sender, EventArgs e){if (lbImgList.Items.Count > 0){if (rbTxt.Checked){if (txtWaterMarkFont.Text != "" && txtSavaPath.Text.Trim() != ""){AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 0);Form2 frm2 = new Form2();frm2.ig = BigBt;frm2.ShowDialog();}}else{if (txtWaterMarkImg.Text != "" && txtSavaPath.Text != ""){ChangeAlpha();AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 2);Form2 frm2 = new Form2();frm2.ig = BigBt;frm2.ShowDialog();}}}}

在字體設(shè)置的點(diǎn)擊事件中

private void button1_Click(object sender, EventArgs e){if (lbImgList.Items.Count > 0){fontDialog1.ShowColor = true;fontDialog1.ShowHelp = false;fontDialog1.ShowApply = false;if (fontDialog1.ShowDialog() == DialogResult.OK){FontF = fontDialog1.Font.FontFamily;fontColor = fontDialog1.Color;fontSize = fontDialog1.Font.Size;fontStyle = fontDialog1.Font.Style;AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 0);pbImgPreview.Image = bt;}}}

開始執(zhí)行的點(diǎn)擊事件中

private void btnPerform_Click(object sender, EventArgs e){if (rbTxt.Checked&&txtSavaPath.Text!=""&&txtWaterMarkFont.Text!=""){for (int i = 0; i < lbImgList.Items.Count; i++){AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[i].ToString(), 1);}MessageBox.Show("添加水印成功","提示",MessageBoxButtons.OK,MessageBoxIcon.Exclamation);}if (rbPIC.Checked && txtSavaPath.Text != "" && pbImgPreview.Image != null){for (int i = 0; i < lbImgList.Items.Count; i++){AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[i].ToString(),3);}MessageBox.Show("添加水印成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);}}

完整示例代碼

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using System.Drawing.Text; using System.Drawing.Imaging; namespace IMGwatermark {public partial class Form1 : Form{public Form1(){InitializeComponent();}#region 獲取系統(tǒng)字體private void GetSystemFont(ToolStripComboBox cb){InstalledFontCollection myFont = new InstalledFontCollection();foreach (FontFamily ff in myFont.Families){cb.Items.Add(ff.Name);}cb.SelectedItem = "宋體";}#endregionprivate void Form1_Load(object sender, EventArgs e){cbbPosition.SelectedIndex = 0;}string [] ImgArray=null;string ImgDirectoryPath=null;private void btnLoadImg_Click(object sender, EventArgs e){if (openFileDialog1.ShowDialog() == DialogResult.OK){lbImgList.Items.Clear();ImgArray = openFileDialog1.FileNames;string ImgP = ImgArray[0].ToString();ImgP = ImgP.Remove(ImgP.LastIndexOf("\\"));ImgDirectoryPath = ImgP;for (int i = 0; i < ImgArray.Length; i++){string ImgPath = ImgArray[i].ToString();string ImgName = ImgPath.Substring(ImgPath.LastIndexOf("\\") + 1, ImgPath.Length - ImgPath.LastIndexOf("\\") - 1);lbImgList.Items.Add(ImgName);}tsslStatus.Text = "圖片總數(shù)：" + lbImgList.Items.Count;}}private void lbImgList_SelectedIndexChanged(object sender, EventArgs e){if (lbImgList.SelectedItems.Count > 0){tsslText.Text = "圖片位置：" + ImgDirectoryPath + "\\" + lbImgList.SelectedItems[0].ToString();}}private void btnPreview_Click(object sender, EventArgs e){if (lbImgList.Items.Count > 0){if (rbTxt.Checked){if (txtWaterMarkFont.Text != "" && txtSavaPath.Text.Trim() != ""){AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 0);Form2 frm2 = new Form2();frm2.ig = BigBt;frm2.ShowDialog();}}else{if (txtWaterMarkImg.Text != "" && txtSavaPath.Text != ""){ChangeAlpha();AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 2);Form2 frm2 = new Form2();frm2.ig = BigBt;frm2.ShowDialog();}}}}private void trackBar1_Enter(object sender, EventArgs e){lbImgList.Focus();}private void btnSelect_Click(object sender, EventArgs e){if (openFileDialog2.ShowDialog() == DialogResult.OK){txtWaterMarkImg.Text = openFileDialog2.FileName;if (rbPIC.Checked == true){ChangeAlpha();pbImgPreview.Image = Image.FromFile(txtWaterMarkImg.Text.Trim());}}}private void rbTxt_CheckedChanged(object sender, EventArgs e){trackBar1.Enabled = false;if(rbPIC.Checked)pbImgPreview.Image = null;}private void rbPIC_CheckedChanged(object sender, EventArgs e){trackBar1.Enabled = true;if (rbTxt.Checked){pbImgPreview.Image = null;}}private void button1_Click(object sender, EventArgs e){if (lbImgList.Items.Count > 0){fontDialog1.ShowColor = true;fontDialog1.ShowHelp = false;fontDialog1.ShowApply = false;if (fontDialog1.ShowDialog() == DialogResult.OK){FontF = fontDialog1.Font.FontFamily;fontColor = fontDialog1.Color;fontSize = fontDialog1.Font.Size;fontStyle = fontDialog1.Font.Style;AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 0);pbImgPreview.Image = bt;}}}Bitmap bt=null;float fontSize = 8;Color fontColor=Color.Black;FontFamily FontF = null;FontStyle fontStyle = FontStyle.Regular;int Fwidth;int Fheight;Bitmap BigBt;Font f;Brush b;private void AddFontWatermark(string txt,string Iname,int i)//預(yù)覽{b = new SolidBrush(fontColor);bt = new Bitmap(368,75);BigBt = new Bitmap(Image.FromFile(ImgDirectoryPath + "\\" +Iname));Graphics g = Graphics.FromImage(bt);Graphics g1 = Graphics.FromImage(BigBt);g.Clear(Color.Gainsboro);pbImgPreview.Image = bt;if (FontF == null){f = new Font(txt,fontSize);SizeF XMaxSize = g.MeasureString(txt, f);Fwidth = (int)XMaxSize.Width;Fheight = (int)XMaxSize.Height;g.DrawString(txt,f, b, (int)(368 - Fwidth) / 2, (int)(75 - Fheight) / 2);if (cbbPosition.SelectedIndex==0)//正中{g1.DrawString(txt, f, b, (int)(BigBt.Width - Fwidth) / 2, (int)(BigBt.Height - Fheight) / 2);}if (cbbPosition.SelectedIndex == 1)//左上{g1.DrawString(txt, f, b, 30,30);}if (cbbPosition.SelectedIndex ==2)//左下{g1.DrawString(txt, f, b, 30, (int)(BigBt.Height - Fheight)-30);}if (cbbPosition.SelectedIndex == 3) //右上{g1.DrawString(txt, f, b, (int)(BigBt.Width - Fwidth), 30);}if (cbbPosition.SelectedIndex == 4)//右下{g1.DrawString(txt, f, b, (int)(BigBt.Width - Fwidth), (int)(BigBt.Height - Fheight)-30);}}else{f = new Font(FontF, fontSize, fontStyle);SizeF XMaxSize = g.MeasureString(txt, f);Fwidth = (int)XMaxSize.Width;Fheight = (int)XMaxSize.Height;g.DrawString(txt, new Font(FontF, fontSize, fontStyle), b, (int)(368 - Fwidth) / 2, (int)(75 - Fheight) / 2);if (cbbPosition.SelectedIndex == 0)//正中{g1.DrawString(txt, new Font(FontF, fontSize, fontStyle), b, (int)(BigBt.Width - Fwidth) / 2, (int)(BigBt.Height - Fheight) / 2);}if (cbbPosition.SelectedIndex == 1)//左上{g1.DrawString(txt, new Font(FontF, fontSize, fontStyle), b, 30, 30);}if (cbbPosition.SelectedIndex == 2)//左下{g1.DrawString(txt, new Font(FontF, fontSize, fontStyle), b, 30, (int)(BigBt.Height - Fheight)-30);}if (cbbPosition.SelectedIndex == 3) //右上{g1.DrawString(txt, new Font(FontF, fontSize, fontStyle), b, (int)(BigBt.Width - Fwidth), Fheight);}if (cbbPosition.SelectedIndex == 4)//右下{g1.DrawString(txt, new Font(FontF, fontSize, fontStyle), b, (int)(BigBt.Width - Fwidth), (int)(BigBt.Height - Fheight)-30);}}if (i == 1){string ipath;if (NewFolderPath.Length == 3)ipath = NewFolderPath.Remove(NewFolderPath.LastIndexOf(":") + 1);elseipath = NewFolderPath;string imgstype = Iname.Substring(Iname.LastIndexOf(".") + 1, Iname.Length - 1 - Iname.LastIndexOf("."));if (imgstype.ToLower() == "jpeg" || imgstype.ToLower() == "jpg"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Jpeg);}if (imgstype.ToLower() == "png"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Png);}if (imgstype.ToLower() == "bmp"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Bmp);}if (imgstype.ToLower() == "gif"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Gif);}g1.Dispose();BigBt.Dispose();}if (i == 2){if (cbbPosition.SelectedIndex == 0)//正中{g1.DrawImage(effect, (int)(BigBt.Width - effect.Width) / 2, (int)(BigBt.Height - effect.Height) / 2);}if (cbbPosition.SelectedIndex == 1)//左上{g1.DrawImage(effect, 30, 30);}if (cbbPosition.SelectedIndex == 2)//左下{g1.DrawImage(effect, 30, (int)(BigBt.Height - effect.Height) - 30);}if (cbbPosition.SelectedIndex == 3) //右上{g1.DrawImage(effect, (int)(BigBt.Width - effect.Width)-30, 30);}if (cbbPosition.SelectedIndex == 4)//右下{g1.DrawImage(effect, (int)(BigBt.Width - effect.Width)-30, (int)(BigBt.Height - effect.Height) - 30);}}if (i == 3){if (cbbPosition.SelectedIndex == 0)//正中{g1.DrawImage(effect, (int)(BigBt.Width - effect.Width) / 2, (int)(BigBt.Height - effect.Height) / 2);}if (cbbPosition.SelectedIndex == 1)//左上{g1.DrawImage(effect, 30, 30);}if (cbbPosition.SelectedIndex == 2)//左下{g1.DrawImage(effect, 30, (int)(BigBt.Height - effect.Height) - 30);}if (cbbPosition.SelectedIndex == 3) //右上{g1.DrawImage(effect, (int)(BigBt.Width - effect.Width), 30);}if (cbbPosition.SelectedIndex == 4)//右下{g1.DrawImage(effect, (int)(BigBt.Width - effect.Width), (int)(BigBt.Height - effect.Height) - 30);}string ipath;if (NewFolderPath.Length == 3)ipath = NewFolderPath.Remove(NewFolderPath.LastIndexOf(":") + 1);elseipath = NewFolderPath;string imgstype = Iname.Substring(Iname.LastIndexOf(".") + 1, Iname.Length - 1 - Iname.LastIndexOf("."));if (imgstype.ToLower() == "jpeg" || imgstype.ToLower() == "jpg"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Jpeg);}if (imgstype.ToLower() == "png"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Png);}if (imgstype.ToLower() == "bmp"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Bmp);}if (imgstype.ToLower() == "gif"){BigBt.Save(ipath + "\\_" + Iname, ImageFormat.Gif);}}}private void txtWaterMarkFont_TextChanged(object sender, EventArgs e){if (lbImgList.Items.Count <= 0){MessageBox.Show("請(qǐng)加載圖片","警告",MessageBoxButtons.OK,MessageBoxIcon.Error);return;}else{AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[0].ToString(), 0);pbImgPreview.Image = bt;}}private void btnExit_Click(object sender, EventArgs e){Application.Exit();}/// <summary>/// 調(diào)節(jié)透明度/// </summary>/// <param name="sender"></param>/// <param name="e"></param>Bitmap effect;Bitmap source;Image new_img;private void ChangeAlpha(){pbImgPreview.Refresh();source = new Bitmap(Image.FromFile(txtWaterMarkImg.Text.Trim()));if (source.Width <= 368)effect = new Bitmap(368, 75);else{Image.GetThumbnailImageAbort callb = null;//對(duì)水印圖片生成縮略圖,縮小到原圖得1/4new_img = source.GetThumbnailImage(source.Width / 4, source.Width / 4, callb, new System.IntPtr());effect = new Bitmap(this.new_img.Width, this.new_img.Height);}Graphics _effect = Graphics.FromImage(effect);float[][] matrixItems ={new float[]{1,0,0,0,0},new float [] {0,1,0,0,0},new float []{0,0,1,0,0},new float []{0,0,0,0,0},new float[]{0,0,0,trackBar1.Value/255f,1}};ColorMatrix imgMatrix = new ColorMatrix(matrixItems);ImageAttributes imgEffect = new ImageAttributes();imgEffect.SetColorMatrix(imgMatrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap);if (source.Width <= 368){_effect.DrawImage(source, new Rectangle(0, 0, 368, 75), 0, 0, 368, 75, GraphicsUnit.Pixel, imgEffect);}else{_effect.DrawImage(new_img, new Rectangle(0, 0, new_img.Width, new_img.Height), 0, 0, new_img.Width, new_img.Height, GraphicsUnit.Pixel, imgEffect);}pbImgPreview.Image = effect;}private void trackBar1_ValueChanged(object sender, EventArgs e){if(rbPIC.Checked&&txtWaterMarkImg.Text.Trim()!="")ChangeAlpha();}private void btnPerform_Click(object sender, EventArgs e){if (rbTxt.Checked&&txtSavaPath.Text!=""&&txtWaterMarkFont.Text!=""){for (int i = 0; i < lbImgList.Items.Count; i++){AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[i].ToString(), 1);}MessageBox.Show("添加水印成功","提示",MessageBoxButtons.OK,MessageBoxIcon.Exclamation);}if (rbPIC.Checked && txtSavaPath.Text != "" && pbImgPreview.Image != null){for (int i = 0; i < lbImgList.Items.Count; i++){AddFontWatermark(txtWaterMarkFont.Text.Trim(), lbImgList.Items[i].ToString(),3);}MessageBox.Show("添加水印成功", "提示", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);}}string NewFolderPath;private void button2_Click(object sender, EventArgs e){if (folderBrowserDialog1.ShowDialog() == DialogResult.OK){txtSavaPath.Text = folderBrowserDialog1.SelectedPath;NewFolderPath = txtSavaPath.Text.Trim();}}} }

代碼下載

https://download.csdn.net/download/BADAO_LIUMANG_QIZHI/12241196

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