Pictures Slide Viewer
選択したフォルダー内（サブフォルダー内を含む）の画像ファイルをリストにし
スライドショー表示（全画面表示対応）するプログラムです。
スライドショーの再生間隔を、0.5秒から1時間まで、0.5秒単位で変更できます。
PicturesSlideViewer.exe C# WinDesktop
Form1 に button1 ～ 6 、 label1 ～ 3 、pictureBox1、listBox1、numericUpDown1 を配置
コンポーネント timer1、 ダイアログ folderBrowserDialog1 を追加
Form1.cs
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using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace PicturesSlideViewer
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
// ListBox1に追加する
private void button1_Click(object sender, EventArgs e)
{
// 初期選択するパスを設定する
// RootFolder以下にあるフォルダである必要がある
folderBrowserDialog1.SelectedPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
// ダイアログを表示し、戻り値が [OK] の場合は、選択したディレクトリを表示する
if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
{
try
{
// 選択したフォルダ以下のファイルをすべて取得、ListBox1に結果を追加する
string[] filesjpg = System.IO.Directory.GetFiles(
folderBrowserDialog1.SelectedPath, "*.jp*g" , System.IO.SearchOption.AllDirectories);
listBox1.Items.AddRange(filesjpg);
string[] filesgif = System.IO.Directory.GetFiles(
folderBrowserDialog1.SelectedPath, "*.gif", System.IO.SearchOption.AllDirectories);
listBox1.Items.AddRange(filesgif);
string[] filesbmp = System.IO.Directory.GetFiles(
folderBrowserDialog1.SelectedPath, "*.bmp", System.IO.SearchOption.AllDirectories);
listBox1.Items.AddRange(filesbmp);
string[] filespng = System.IO.Directory.GetFiles(
folderBrowserDialog1.SelectedPath, "*.png", System.IO.SearchOption.AllDirectories);
listBox1.Items.AddRange(filespng);
// リストの1番を選択
listBox1.SetSelected(0, true);
}
catch (System.Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
// 終了
private void button2_Click(object sender, EventArgs e)
{
Environment.Exit(0);
}
private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
{
pictureBox1.ImageLocation = listBox1.Text;
label1.Text = "ファイル名：" + listBox1.Text;
}
// 次へ
private void button3_Click(object sender, EventArgs e)
{
if (listBox1.Items.Count > 0)
{
if (listBox1.SelectedIndex == listBox1.Items.Count - 1)
{
listBox1.SetSelected(0, true);
}
else
{
int i = listBox1.SelectedIndex + 1;
listBox1.SetSelected(i, true);
}
}
}
// 前へ
private void button4_Click(object sender, EventArgs e)
{
if (listBox1.Items.Count > 0)
{
if (listBox1.SelectedIndex == 0)
{
listBox1.SetSelected(listBox1.Items.Count - 1, true);
}
else
{
int i = listBox1.SelectedIndex - 1;
listBox1.SetSelected(i, true);
}
}
}
// ListBox1をクリアにする
private void button6_Click(object sender, EventArgs e)
{
listBox1.Items.Clear();
label1.Text = "ファイル名：";
if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();
pictureBox1.Image = null;
}
}
// スライドショー再生・停止
private void button5_Click(object sender, EventArgs e)
{
if (button5.Text == "再生 ＞")
{
button5.Text = "停止 ■";
// button3.PerformClick();
timer1.Interval = Convert.ToInt32(numericUpDown1.Value);
timer1.Start();
}
else
{
button5.Text = "再生 ＞";
timer1.Stop();
}
}
// スライドショーの切り替え間隔変更
private void numericUpDown1_ValueChanged(object sender, EventArgs e)
{
timer1.Interval = Convert.ToInt32(numericUpDown1.Value);
}
// タイマーイベント
private void timer1_Tick(object sender, EventArgs e)
{
button3.PerformClick();
}
// フルスクリーンモード
// フルスクリーン・モードかどうかのフラグ
private bool _bScreenMode;
// フルスクリーン表示前のウィンドウの状態を保存する
private FormWindowState prevFormState;
// 通常表示時のフォームの境界線スタイルを保存する
private FormBorderStyle prevFormStyle;
// 通常表示時のウィンドウのサイズを保存する
private Size prevFormSize;
// 通常表示時のピクチャーボックスのサイズを保存する
private Size prevPictureBoxSize;
// フルスクリーンに切り替え
private void pictureBox1_Click(object sender, EventArgs e)
{
if (_bScreenMode == false)
{
// ＜フルスクリーン表示への切り替え処理＞
// ウィンドウの状態を保存する
prevFormState = this.WindowState;
// 境界線スタイルを保存する
prevFormStyle = this.FormBorderStyle;
// ピクチャーボックスのサイズを保存
prevPictureBoxSize = pictureBox1.Size;
// 「最大化表示」→「フルスクリーン表示」では
// タスク・バーが消えないので、いったん「通常表示」を行う
if (this.WindowState == FormWindowState.Maximized)
{
this.WindowState = FormWindowState.Normal;
}
// フォームのサイズを保存する
prevFormSize = this.Size;
// フォームの境界線スタイルを「None」にする
this.FormBorderStyle = FormBorderStyle.None;
// フォームのウィンドウ状態を「最大化」する
this.WindowState = FormWindowState.Maximized;
// ピクチャーボックスを最大化
pictureBox1.Size = this.ClientSize;
// フルスクリーン表示フラグをONにする
_bScreenMode = true;
}
else
{
// 既にフルスクリーンの場合は、次へ
button3.PerformClick();
}
}
// フルスクリーン解除
private void pictureBox1_DoubleClick(object sender, EventArgs e)
{
if (_bScreenMode == true)
{
// 次に進んでしまうので前に戻す
button4.PerformClick();
// ＜通常表示／最大化表示への切り替え処理＞
// フォームのウィンドウのサイズを元に戻す
this.ClientSize = prevFormSize;
// 最大化表示に戻す場合にはいったん通常表示を行う
// （フルスクリーン表示の処理とのバランスと取るため）
if (prevFormState == FormWindowState.Maximized)
{
this.WindowState = FormWindowState.Normal;
}
// フォームの境界線スタイルを元に戻す
this.FormBorderStyle = prevFormStyle;
// フォームのウィンドウ状態を元に戻す
this.WindowState = prevFormState;
// ピクチャーボックスを戻す
pictureBox1.Size = prevPictureBoxSize;
// フルスクリーン表示フラグをOFFにする
_bScreenMode = false;
}
}
}
}
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今回は追加したコントロールが多いのでこちらも掲載
Form1.Designer.cs
=====================================================================
namespace PicturesSlideViewer
{
partial class Form1
{
/// <summary>
/// 必要なデザイナー変数です。
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// 使用中のリソースをすべてクリーンアップします。
/// </summary>
/// <param name="disposing">マネージ リソースが破棄される場合 true、破棄されない場合は false です。</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows フォーム デザイナーで生成されたコード
/// <summary>
/// デザイナー サポートに必要なメソッドです。このメソッドの内容を
/// コード エディターで変更しないでください。
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.pictureBox1 = new System.Windows.Forms.PictureBox();
this.label1 = new System.Windows.Forms.Label();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.listBox1 = new System.Windows.Forms.ListBox();
this.label2 = new System.Windows.Forms.Label();
this.button6 = new System.Windows.Forms.Button();
this.numericUpDown1 = new System.Windows.Forms.NumericUpDown();
this.label3 = new System.Windows.Forms.Label();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.folderBrowserDialog1 = new System.Windows.Forms.FolderBrowserDialog();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).BeginInit();
this.SuspendLayout();
//
// pictureBox1
//
this.pictureBox1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.pictureBox1.Location = new System.Drawing.Point(0, 0);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(823, 567);
this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click);
this.pictureBox1.DoubleClick += new System.EventHandler(this.pictureBox1_DoubleClick);
//
// label1
//
this.label1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(12, 570);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(57, 12);
this.label1.TabIndex = 1;
this.label1.Text = "ファイル名：";
//
// button1
//
this.button1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.button1.Location = new System.Drawing.Point(829, 596);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(75, 23);
this.button1.TabIndex = 2;
this.button1.Text = "追加";
this.button1.UseVisualStyleBackColor = true;
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button2.Location = new System.Drawing.Point(12, 596);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(75, 23);
this.button2.TabIndex = 3;
this.button2.Text = "終了";
this.button2.UseVisualStyleBackColor = true;
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button3.Location = new System.Drawing.Point(373, 596);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(75, 23);
this.button3.TabIndex = 4;
this.button3.Text = "次へ ＞＞";
this.button3.UseVisualStyleBackColor = true;
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// button4
//
this.button4.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button4.Location = new System.Drawing.Point(183, 596);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(75, 23);
this.button4.TabIndex = 5;
this.button4.Text = "＜＜ 前へ";
this.button4.UseVisualStyleBackColor = true;
this.button4.Click += new System.EventHandler(this.button4_Click);
//
// button5
//
this.button5.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.button5.Location = new System.Drawing.Point(277, 596);
this.button5.Name = "button5";
this.button5.Size = new System.Drawing.Size(75, 23);
this.button5.TabIndex = 6;
this.button5.Text = "再生 ＞";
this.button5.UseVisualStyleBackColor = true;
this.button5.Click += new System.EventHandler(this.button5_Click);
//
// listBox1
//
this.listBox1.Anchor = ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Right)));
this.listBox1.FormattingEnabled = true;
this.listBox1.HorizontalScrollbar = true;
this.listBox1.ItemHeight = 12;
this.listBox1.Location = new System.Drawing.Point(829, 26);
this.listBox1.Name = "listBox1";
this.listBox1.Size = new System.Drawing.Size(160, 556);
this.listBox1.TabIndex = 7;
this.listBox1.SelectedIndexChanged += new System.EventHandler(this.listBox1_SelectedIndexChanged);
//
// label2
//
this.label2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(840, 9);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(29, 12);
this.label2.TabIndex = 8;
this.label2.Text = "リスト";
//
// button6
//
this.button6.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
this.button6.Location = new System.Drawing.Point(914, 596);
this.button6.Name = "button6";
this.button6.Size = new System.Drawing.Size(75, 23);
this.button6.TabIndex = 9;
this.button6.Text = "全削除";
this.button6.UseVisualStyleBackColor = true;
this.button6.Click += new System.EventHandler(this.button6_Click);
//
// numericUpDown1
//
this.numericUpDown1.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.numericUpDown1.Increment = new decimal(new int[] {
500,
0,
0,
0});
this.numericUpDown1.Location = new System.Drawing.Point(534, 596);
this.numericUpDown1.Maximum = new decimal(new int[] {
360000,
0,
0,
0});
this.numericUpDown1.Minimum = new decimal(new int[] {
500,
0,
0,
0});
this.numericUpDown1.Name = "numericUpDown1";
this.numericUpDown1.ReadOnly = true;
this.numericUpDown1.Size = new System.Drawing.Size(81, 19);
this.numericUpDown1.TabIndex = 10;
this.numericUpDown1.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
this.numericUpDown1.ThousandsSeparator = true;
this.numericUpDown1.Value = new decimal(new int[] {
2000,
0,
0,
0});
this.numericUpDown1.ValueChanged += new System.EventHandler(this.numericUpDown1_ValueChanged);
//
// label3
//
this.label3.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
this.label3.AutoSize = true;
this.label3.Location = new System.Drawing.Point(621, 598);
this.label3.Name = "label3";
this.label3.Size = new System.Drawing.Size(31, 12);
this.label3.TabIndex = 11;
this.label3.Text = "ミリ秒";
//
// timer1
//
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// folderBrowserDialog1
//
this.folderBrowserDialog1.Description = "フォルダを選択";
this.folderBrowserDialog1.ShowNewFolderButton = false;
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(994, 631);
this.Controls.Add(this.pictureBox1);
this.Controls.Add(this.button3);
this.Controls.Add(this.label3);
this.Controls.Add(this.numericUpDown1);
this.Controls.Add(this.button6);
this.Controls.Add(this.label2);
this.Controls.Add(this.listBox1);
this.Controls.Add(this.button5);
this.Controls.Add(this.button4);
this.Controls.Add(this.button2);
this.Controls.Add(this.button1);
this.Controls.Add(this.label1);
this.Name = "Form1";
this.Text = "Pictures Slide Viewer";
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.numericUpDown1)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
private System.Windows.Forms.PictureBox pictureBox1;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.ListBox listBox1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.NumericUpDown numericUpDown1;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.FolderBrowserDialog folderBrowserDialog1;
}
}
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