photoeditor.cs

这是一个小型的相片管理器

			this.Controls.Add(this.vSb);
			this.Controls.Add(this.hSb);
			this.Controls.Add(this.pControls);
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.Name = "PhotoEditor";
			this.Text = "PhotoEditor";
			this.Resize += new System.EventHandler(this.PhotoEditor_Resize);
			this.Closing += new System.ComponentModel.CancelEventHandler(this.PhotoEditor_Closing);
			this.Load += new System.EventHandler(this.PhotoEditor_Load);
			this.Closed += new System.EventHandler(this.PhotoEditor_Closed);
			this.Paint += new System.Windows.Forms.PaintEventHandler(this.PhotoEditor_Paint);
			this.pControls.ResumeLayout(false);
			this.pButtons.ResumeLayout(false);
			this.tabControl1.ResumeLayout(false);
			this.tabGen.ResumeLayout(false);
			this.tabProp.ResumeLayout(false);
			((System.ComponentModel.ISupportInitialize)(this.numSat)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.numGamma)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.numCont)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.numBright)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.tbSat)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.tbGamma)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.tbCont)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.tbBright)).EndInit();
			this.tabResize.ResumeLayout(false);
			this.tabCrop.ResumeLayout(false);
			((System.ComponentModel.ISupportInitialize)(this.numTop)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.numRight)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.numLeft)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.numBottom)).EndInit();
			this.ResumeLayout(false);

		}
		#endregion

		private void PhotoEditor_Paint(object sender, System.Windows.Forms.PaintEventArgs e) {
			DrawPhoto();
		}

		private void PhotoEditor_Resize(object sender, System.EventArgs e) {
			AdjustSBars();
			DrawPhoto();
		}

		private void PhotoEditor_Closed(object sender, System.EventArgs e) {
			// save size-related settings
			Settings settings = new Settings();
			if (this.WindowState == FormWindowState.Maximized)
				settings.PhotoEditorMax = true;
			else {
				settings.PhotoEditorMax = false;
				settings.PhotoEditorWidth = this.Width;
				settings.PhotoEditorHeight = this.Height;
			}
			settings.SaveSettings();

			// dispose the Image
			Image.Dispose();
		}

		private void tbBright_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) {
			numBright.Value = tbBright.Value;
		}

		private void tbCont_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) {
			numCont.Value = tbCont.Value;
		}

		private void tbGamma_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) {
			numGamma.Value = tbGamma.Value;
		}

		private void tbSat_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) {
			numSat.Value = tbSat.Value;
		}

		private void numBright_ValueChanged(object sender, System.EventArgs e) {
			if (Resetting == false) {
				tbBright.Value = (int) numBright.Value;
				Image.AdjustBrightness((int) numBright.Value);
				DrawPhoto();
				bReset.Enabled = true;
				ImageChanged = true;
			}
		}

		private void numCont_ValueChanged(object sender, System.EventArgs e) {
			if (Resetting == false) {
				Image.AdjustContrast((int) numCont.Value);
				tbCont.Value = (int) numCont.Value;
				DrawPhoto();
				bReset.Enabled = true;
				ImageChanged = true;
			}
		}

		private void numGamma_ValueChanged(object sender, System.EventArgs e) {
			if (Resetting == false) {
				Image.AdjustGamma((int) numGamma.Value);
				tbGamma.Value = (int) numGamma.Value;
				DrawPhoto();
				bReset.Enabled = true;
				ImageChanged = true;
			}
		}

		private void numSat_ValueChanged(object sender, System.EventArgs e) {
			if (Resetting == false) {
				Image.AdjustSaturation((int) numSat.Value);
				tbSat.Value = (int) numSat.Value;
				DrawPhoto();
				bReset.Enabled = true;
				ImageChanged = true;
			}
		}

		private void bGraysc_Click(object sender, System.EventArgs e) {
			if (Resetting == false) {
				Image.ConvertToGrayscale();
				DrawPhoto();
				bReset.Enabled = true;
				ImageChanged = true;
			}
		}

		private void bSepia_Click(object sender, System.EventArgs e) {
			if (Resetting == false) {
				Image.ConvertToSepia();
				DrawPhoto();
				bReset.Enabled = true;
				ImageChanged = true;
			}
		}

		private void bReset_Click(object sender, System.EventArgs e) {
			// reset the ui
			ResetUi();

			// reset the image property values
			Image.ResetValues();

			// redraw the original image
			Image.Reset();
			DrawPhoto();
		}

		private void tbTitle_TextChanged(object sender, System.EventArgs e) {
			if (Resetting == false) {
				bReset.Enabled = true;
				TextChanged = true;
			}
		}

		private void rtbDesc_TextChanged(object sender, System.EventArgs e) {
			if (Resetting == false) {
				bReset.Enabled = true;
				TextChanged = true;
			}
		}

		private void cbChooseFilter_CheckedChanged(object sender, System.EventArgs e) {
			cobFilt.Enabled = cbChooseFilter.Checked;
		}

		private void bResize_Click(object sender, System.EventArgs e) {
			// create an interpolation mode var
			InterpolationMode im;

			// create the sizes var
			int nwidth = Convert.ToInt32(tbNWidth.Text);
			int nheight = Convert.ToInt32(tbNHeight.Text);

			if (cobFilt.Enabled == true)	// does the user want to choose the interpolation mode himself?
			{
				switch (cobFilt.SelectedIndex) {
					case 0: im = InterpolationMode.Bicubic;
						break;
					case 1: im = InterpolationMode.HighQualityBicubic;
						break;
					case 2: im = InterpolationMode.Bilinear;
						break;
					case 3: im = InterpolationMode.HighQualityBilinear;
						break;
					case 4: im = InterpolationMode.NearestNeighbor;
						break;
					default: im = FindRightInterpolationMode(nwidth, nheight);
						break;
				}
			} else	// find the right mode automatically
			{
				im = FindRightInterpolationMode(nwidth, nheight);
				switch (im) {
					case InterpolationMode.Bicubic: cobFilt.SelectedIndex = 0;
						break;
					case InterpolationMode.Bilinear: cobFilt.SelectedIndex = 2;
						break;
					default:
						break;
				}
			}

			// Resize the image and enable the reset button
			Image.Resize(nwidth, nheight, im);
			bReset.Enabled = true;
			ImageChanged = true;
			ImageChanged = true;
			DrawPhoto();
		}

		private void bZOut_Click(object sender, System.EventArgs e) {
			int sbHPos = -1;
			int sbVPos = -1;
			if (ZoomLevel - 1 < 1)	// if half the current zoom level would be less than 1, set zooming to false and the zoomlevel to 1
			{
				Zooming = false;
				bZOut.Enabled = false;
				ZoomLevel = 1;
			} else {
				ZoomLevel -= 1;		// just half the zoomlevel
				double modifier = (double) ZoomLevel / (ZoomLevel + 1);
				sbHPos = (int) Math.Round(hSb.Value * modifier);
				sbVPos = (int) Math.Round(vSb.Value * modifier);
			}

			bZIn.Enabled = true;

			AdjustSBars();		// adjust the scrollBars
			if (sbVPos != -1) {
				if (sbHPos <= hSb.Maximum) {
					if (sbHPos >= hSb.Minimum)
						hSb.Value = sbHPos;
					else
						hSb.Value = hSb.Minimum;
				} else
					hSb.Value = hSb.Maximum;
				if (sbVPos <= vSb.Maximum) {
					if (sbVPos >= vSb.Minimum)
						vSb.Value = sbVPos;
					else
						vSb.Value = vSb.Minimum;
				} else
					vSb.Value = vSb.Maximum;
			}


			DrawPhoto();
		}

		private void bZIn_Click(object sender, System.EventArgs e) {
			int sbVPos = -1;
			int sbHPos = -1;
			if (Zooming == false)	// if zooming was disabled before, enable it and set the zoom level to display the image's original size
			{
				Zooming = true;
				bZOut.Enabled = true;
				ZoomLevel = 1;
				if (ZoomLevel == 48)		// if we've reached the maximum zoom level disable the ZoomIn button
					bZIn.Enabled = false;
			} else {
				ZoomLevel += 1;		// increase the ZoomLevel
				double modifier = (double) ZoomLevel / (ZoomLevel - 1);
				sbHPos = (int) Math.Round(hSb.Value * modifier);
				sbVPos = (int) Math.Round(vSb.Value * modifier);
			}


			AdjustSBars();		// adjust the scrollBars
			if (sbVPos != -1) {
				if (sbHPos <= hSb.Maximum) {
					if (sbHPos >= hSb.Minimum)
						hSb.Value = sbHPos;
					else
						hSb.Value = hSb.Minimum;
				} else
					hSb.Value = hSb.Maximum;
				if (sbVPos <= vSb.Maximum) {
					if (sbVPos >= vSb.Minimum)
						vSb.Value = sbVPos;
					else
						vSb.Value = vSb.Minimum;
				} else
					vSb.Value = vSb.Maximum;
			} else {
				hSb.Value = (hSb.Maximum - hSb.Minimum) / 2 + hSb.Minimum;
				vSb.Value = (vSb.Maximum - vSb.Minimum) / 2 + vSb.Minimum;
			}

			DrawPhoto();
		}

		private void bPrev_Click(object sender, System.EventArgs e) {
			if (ImageChanged == true || TextChanged == true)		// if the image was changed ask the user if he wished to discard the changes
			{
				DialogResult dr = GetClosingDR();
				if (dr == DialogResult.Yes) {
					if (SaveImage() == false)
						return;
				} else {
					if (dr == DialogResult.Cancel)
						return;
				}
			}
			if (CurrIndex == 0)
				CurrIndex = Photos.Count - 1;
			else
				CurrIndex--;
			Path = "";
			OpenPhoto();
		}

		private void bNext_Click(object sender, System.EventArgs e) {
			if (ImageChanged == true || TextChanged == true)		// if the image was changed ask the user if he wished to discard the changes
			{
				DialogResult dr = GetClosingDR();
				if (dr == DialogResult.Yes) {
					if (SaveImage() == false)
						return;
				} else {
					if (dr == DialogResult.Cancel)
						return;
				}
			}
			if (CurrIndex == Photos.Count - 1)
				CurrIndex = 0;
			else
				CurrIndex++;
			Path = "";
			OpenPhoto();
		}

		private void bRotRight_Click(object sender, System.EventArgs e) {
			if (ImageChanged == true)		// if the image was changed ask the user if he wished to discard the changes
			{
				DialogResult dr = GetClosingDR();
				if (dr == DialogResult.Yes) {
					if (SaveImage() == false)
						return;
				} else {
					if (dr == DialogResult.Cancel)
						return;
				}
			}
			Image.Dispose();
			// rotate the image
			Resizer r = new Resizer();
			if (Path == "" || Path == Photos[CurrIndex].Path)	// if the photo is part of an album
			{
				r.Rotate(Photos[CurrIndex].Path, RotateFlipType.Rotate90FlipNone, 100);
				// recreate the thumbnail
				PhotosP.RecreateThumbnail(CurrIndex, Photos[CurrIndex]);
			} else	// just rotate the image
				r.Rotate(Path, RotateFlipType.Rotate90FlipNone, 100);

			OpenPhoto();
		}

		private void bRotLeft_Click(object sender, System.EventArgs e) {
			if (ImageChanged == true)		// if the image was changed ask the user if he wished to discard the changes
			{
				DialogResult dr = GetClosingDR();
				if (dr == DialogResult.Yes) {
					if (SaveImage() == false)
						return;
				} else {
					if (dr == DialogResult.Cancel)
						return;
				}
			}
			Image.Dispose();
			// rotate the image
			Resizer r = new Resizer();
			if (Path == "" || Path == Photos[CurrIndex].Path)	// if the photo is part of an album
			{
				r.Rotate(Photos[