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求助： 窗口比例缩放

追梦人zmrghy 发布于 2022-09-02 23:59， 1089 次点击
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窗体Form1

Form1工作区放置一个一行俩列的tableLayoutPanel1。
第1列宽度占66.66%, 第2列宽度占33.33%。
第1列中放置pictureBox1，第2列中放置pictureBox2。
初始状态pictureBox1，宽度等于高度，为正方形。

如何，确保pictureBox1为正方形的情况下改变窗口尺寸。。。
Form1_Resize()函数中，只做到了，水平拖动宽度时确保pictureBox1为正方形比例缩放。
上下拖动高度时，尺寸不变，没相应。。。


如何，确保pictureBox1为正方形的情况下拖动高度，也发生比例缩放。



程序代码：
#pragma once

namespace Zoom {

    using namespace System;
    using namespace System::ComponentModel;
    using namespace System::Collections;
    using namespace System::Windows::Forms;
    using namespace System::Data;
    using namespace System::Drawing;

    /// <summary>
    /// Form1 摘要
    /// </summary>
    public ref class Form1 : public System::Windows::Forms::Form
    {
    public:
        Form1(void)
        {
            InitializeComponent();
            //
            //TODO:  在此处添加构造函数代码
            //
        }

    protected:
        /// <summary>
        /// 清理所有正在使用的资源。
        /// </summary>
        ~Form1()
        {
            if (components)
            {
                delete components;
            }
        }
    private: System::Windows::Forms::TableLayoutPanel^ tableLayoutPanel1;
    protected:
    private: System::Windows::Forms::PictureBox^ pictureBox1;
    private: System::Windows::Forms::PictureBox^ pictureBox2;

    private:
        /// <summary>
        /// 必需的设计器变量。
        /// </summary>
        System::ComponentModel::Container ^components;

#pragma region Windows Form Designer generated code
        /// <summary>
        /// 设计器支持所需的方法 - 不要修改
        /// 使用代码编辑器修改此方法的内容。
        /// </summary>
        void InitializeComponent(void)
        {
            this->tableLayoutPanel1 = (gcnew System::Windows::Forms::TableLayoutPanel());
            this->pictureBox1 = (gcnew System::Windows::Forms::PictureBox());
            this->pictureBox2 = (gcnew System::Windows::Forms::PictureBox());
            this->tableLayoutPanel1->SuspendLayout();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->pictureBox1))->BeginInit();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->pictureBox2))->BeginInit();
            this->SuspendLayout();
            //
            // tableLayoutPanel1
            //
            this->tableLayoutPanel1->ColumnCount = 2;
            this->tableLayoutPanel1->ColumnStyles->Add((gcnew System::Windows::Forms::ColumnStyle(System::Windows::Forms::SizeType::Percent,
                66.66666F)));
            this->tableLayoutPanel1->ColumnStyles->Add((gcnew System::Windows::Forms::ColumnStyle(System::Windows::Forms::SizeType::Percent,
                33.33333F)));
            this->tableLayoutPanel1->Controls->Add(this->pictureBox1, 0, 0);
            this->tableLayoutPanel1->Controls->Add(this->pictureBox2, 1, 0);
            this->tableLayoutPanel1->Dock = System::Windows::Forms::DockStyle::Fill;
            this->tableLayoutPanel1->Location = System::Drawing::Point(0, 0);
            this->tableLayoutPanel1->Name = L"tableLayoutPanel1";
            this->tableLayoutPanel1->RowCount = 1;
            this->tableLayoutPanel1->RowStyles->Add((gcnew System::Windows::Forms::RowStyle(System::Windows::Forms::SizeType::Percent, 100)));
            this->tableLayoutPanel1->Size = System::Drawing::Size(784, 522);
            this->tableLayoutPanel1->TabIndex = 0;
            //
            // pictureBox1
            //
            this->pictureBox1->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(192)), static_cast<System::Int32>(static_cast<System::Byte>(255)),
                static_cast<System::Int32>(static_cast<System::Byte>(192)));
            this->pictureBox1->Dock = System::Windows::Forms::DockStyle::Fill;
            this->pictureBox1->Location = System::Drawing::Point(3, 3);
            this->pictureBox1->Name = L"pictureBox1";
            this->pictureBox1->Size = System::Drawing::Size(516, 516);
            this->pictureBox1->TabIndex = 0;
            this->pictureBox1->TabStop = false;
            //
            // pictureBox2
            //
            this->pictureBox2->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(255)), static_cast<System::Int32>(static_cast<System::Byte>(192)),
                static_cast<System::Int32>(static_cast<System::Byte>(192)));
            this->pictureBox2->Dock = System::Windows::Forms::DockStyle::Fill;
            this->pictureBox2->Location = System::Drawing::Point(525, 3);
            this->pictureBox2->Name = L"pictureBox2";
            this->pictureBox2->Size = System::Drawing::Size(256, 516);
            this->pictureBox2->TabIndex = 1;
            this->pictureBox2->TabStop = false;
            //
            // Form1
            //
            this->AutoScaleDimensions = System::Drawing::SizeF(6, 12);
            this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
            this->ClientSize = System::Drawing::Size(784, 522);
            this->Controls->Add(this->tableLayoutPanel1);
            this->Name = L"Form1";
            this->Text = L"Form1";
            this->Load += gcnew System::EventHandler(this, &Form1::Form1_Load);
            this->Resize += gcnew System::EventHandler(this, &Form1::Form1_Resize);
            this->tableLayoutPanel1->ResumeLayout(false);
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->pictureBox1))->EndInit();
            (cli::safe_cast<System::ComponentModel::ISupportInitialize^>(this->pictureBox2))->EndInit();
            this->ResumeLayout(false);

        }
#pragma endregion

    //确保pictureBox1为正方形的情况下，窗口允许最大尺寸
    private: void SetMaxSize()
    {
        int maxwidth = Screen::PrimaryScreen->WorkingArea.Width;
        int maxheight = Screen::PrimaryScreen->WorkingArea.Height;
        if (maxwidth > ((maxheight - 39) * 3) / 2 + 16)
            maxwidth = ((maxheight - 39) * 3) / 2 + 16;
        else if (maxheight > ((maxwidth - 16) * 2) / 3 + 39)
            maxheight = ((maxwidth - 16) * 2) / 3 + 39;
        this->MaximumSize = System::Drawing::Size(maxwidth, maxheight);
    }
    private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
    {
        SetMaxSize();            //设置窗口最大尺寸
    }
private: System::Void Form1_Resize(System::Object^ sender, System::EventArgs^ e)
{
    Control^ control = dynamic_cast<Control^>(sender);

    //拖动窗口比例缩放，确保pictureBox1 Size 为正方形.
    int swidth = control->Size.Width;
    int sheight = control->Size.Height;

    if (sheight > 28) //sheight > 28 窗口不是最小化。
    {
        int maxwidth = Screen::PrimaryScreen->WorkingArea.Width;
        int maxheight = Screen::PrimaryScreen->WorkingArea.Height;

        if (swidth > maxwidth)
            swidth = maxwidth;

        sheight = ((swidth - 16) * 2) / 3 + 39;

        if (sheight > maxheight)
        {
            sheight = maxheight;
            swidth = ((sheight - 39) * 3) / 2 + 16;
        }

        control->Size = System::Drawing::Size(swidth, sheight);
    }
}
};
}


[此贴子已经被作者于2022-9-3 00:01编辑过]

5 回复
#2
追梦人zmrghy2022-09-03 18:24
根据自己的思路，修改了代码，自己感觉没问题，不知什么原因不管用，宽、高可以随意调整，不受程序控制。。。。

程序代码：
#pragma endregion

    private: static int RecordForm1Width;   //记录窗口宽度
    private: static int RecordForm1Height;  //记录窗口高度
    //确保pictureBox1为正方形的情况下，窗口允许最大尺寸
    private: void SetMaxSize()
    {
        int maxwidth = Screen::PrimaryScreen->WorkingArea.Width;
        int maxheight = Screen::PrimaryScreen->WorkingArea.Height;
        maxwidth += 16;
        maxheight += 16;
        if (maxwidth > ((maxheight - 39) * 3) / 2 + 16)
            maxwidth = ((maxheight - 39) * 3) / 2 + 16;
        else if (maxheight > ((maxwidth - 16) * 2) / 3 + 39)
            maxheight = ((maxwidth - 16) * 2) / 3 + 39;
        this->MaximumSize = System::Drawing::Size(maxwidth, maxheight);
    }
    private: System::Void Form1_Load(System::Object^ sender, System::EventArgs^ e)
    {
        SetMaxSize();            //设置窗口最大尺寸
        RecordForm1Width = this->Width;
        RecordForm1Height = this->Height;
    }
private: System::Void Form1_Resize(System::Object^ sender, System::EventArgs^ e)
{
    Control^ control = dynamic_cast<Control^>(sender);

    //拖动窗口比例缩放，确保pictureBox1 Size 为正方形.
    int swidth = control->Size.Width;
    int sheight = control->Size.Height;

    //if (sheight > 28) //sheight > 28 窗口不是最小化。
    //{
    //    int maxwidth = Screen::PrimaryScreen->WorkingArea.Width;
    //    int maxheight = Screen::PrimaryScreen->WorkingArea.Height;

    //    if (swidth > maxwidth)
    //        swidth = maxwidth;

    //    sheight = ((swidth - 16) * 2) / 3 + 39;

    //    if (sheight > maxheight)
    //    {
    //        sheight = maxheight;
    //        swidth = ((sheight - 39) * 3) / 2 + 16;
    //    }
    //    control->Size = System::Drawing::Size(swidth, sheight);
    //}
    if (sheight != this->MaximumSize.Height || swidth != this->MaximumSize.Width)   //窗口不是最大化
    {
        if (RecordForm1Width == swidth)  //窗口新宽度等于记录中的宽度，说明鼠标在拖动窗口高度
        {
            swidth = ((sheight - 39) * 3) / 2 + 16; //计算出对应的窗口新宽度，
            control->Size = System::Drawing::Size(swidth, sheight); //调整窗口尺寸。。。
            RecordForm1Width = swidth;        //记录新的窗口尺寸
            RecordForm1Height = sheight;
        }
        else if (RecordForm1Height == sheight)    //窗口新高度等于记录中的高度，说明鼠标在拖动窗口宽度
        {
            sheight = ((swidth - 16) * 2) / 3 + 39;  //计算出对应的窗口新高度，
            control->Size = System::Drawing::Size(swidth, sheight);   //调整窗口尺寸。。。
            RecordForm1Width = swidth;         //记录新的窗口尺寸
            RecordForm1Height = sheight;
        }
    }
}
#3
追梦人zmrghy2022-09-03 18:28
有没有人在呀，大佬们，都去哪里了呀？？？
#4
追梦人zmrghy2022-09-03 20:13
大佬们，去哪了呀？？？
#5
追梦人zmrghy2022-09-03 22:36
大佬们，去哪了呀？？？

谁来帮我，解决这个问题呀？？？
#6
追梦人zmrghy2022-09-04 01:12
折腾了俩天，自己终于找到答案了。。。。
终于明白，大佬们为什么都不回答我的问题了！！！
自己猜猜犯了方向的错误。。。。
非要用，private: System::Void Form1_Resize(）函数去做private: System::Void Form1_ResizeEnd()函数的工作。

好比：公鸡非要母鸡去晨鸣，母鸡非要公鸡去生蛋。。。。相互折磨，不死不休。。。。。。。。

程序代码：
private: System::Void Form1_ResizeEnd(System::Object^ sender, System::EventArgs^ e)
{
    int swidth = this->Width;
    int sheight = this->Size.Height;

    if (RecordForm1Height != sheight)  //窗口新宽度等于记录中的宽度，说明鼠标在拖动窗口高度
    {
        swidth = ((sheight - 39) * 3) / 2 + 16; //计算出对应的窗口新宽度，
    }
    else if (RecordForm1Width != swidth)    //窗口新高度等于记录中的高度，说明鼠标在拖动窗口宽度
    {
        sheight = ((swidth - 16) * 2) / 3 + 39;  //计算出对应的窗口新高度，
    }
    this->Size = System::Drawing::Size(swidth, sheight);   //调整窗口尺寸。。。
    RecordForm1Width = swidth;         //记录新的窗口尺寸
    RecordForm1Height = sheight;
}
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