应用DEV第三方界面控件制作批量添加水印程序

本次应用devexpress和c#语言制作了一个批量添加水印的程序，看界面效果图：

界面中既可以进行文字水印添加，也可以图片水印添加，同时还可以对水印的位置进行设置，比较实用！

文字水印的具体添加情况，看图：

还可以文字的预览：

整个文字水印的预览：

同时图片的水印预览：

最后显示下图片的水印效果：

核心代码部分：

using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.drawing.imaging;
using system.drawing.text;
using system.linq;
using system.text;
using system.windows.forms;
namespace 添加水印_程序
{
public partial class form1 : devexpress.xtraeditors.xtraform
{
public form1()
{
initializecomponent();
}
#region 获取系统字体
private void getsystemfont(toolstripcombobox cb)
{
installedfontcollection myfont = new installedfontcollection();
foreach (fontfamily ff in myfont.families)
{
cb.items.add(ff.name);
}
cb.selecteditem = "宋体";
}
#endregion
private void form1_load(object sender, eventargs e)
{
cbbposition.selectedindex = 1;
}
string[] imgarray = null;
string imgdirectorypath = null;
private void simplebutton4_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);
//messagebox.show(imgname);
lbimglist.items.add(imgname);
}
tsslstatus.text = "图片总数：" + lbimglist.items.count;
}
}
private void listboxcontrol1_selectedindexchanged(object sender, eventargs e)
{
if (lbimglist.selecteditems.count > 0)
{
tssltext.text = "图片位置：" + 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);
frm_browser frm2 = new frm_browser();
frm2.ig = bigbt;
frm2.showdialog();
}
}
else
{
if (txtwatermarkimg.text != "" && txtsavapath.text != "")
{
changealpha();
addfontwatermark(txtwatermarkfont.text.trim(), lbimglist.items[0].tostring(), 2);
frm_browser frm2 = new frm_browser();
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;
//messagebox.show(txtwatermarkimg.text);
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 txtwatermarkfont_textchanged(object sender, eventargs e)
{
if (lbimglist.items.count <= 0)
{
messagebox.show("请加载图片", "警告", messageboxbuttons.ok, messageboxicon.error);
return;
}
else
{
addfontwatermark(txtwatermarkfont.text.trim(), lbimglist.items[0].tostring(), 0);
pbimgpreview.image = bt;
}
}
private void simplebutton7_click(object sender, eventargs e)
{
application.exit();
}
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;
//对水印图片生成缩略图,缩小到原图得1/4
new_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();
}
}

 

有兴趣的可自己尝试下！！！