621 lines
17 KiB
C++
621 lines
17 KiB
C++
#include "Table.h"
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// 绘制表格的当前页
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// 使用双循环绘制行和列，考虑分页偏移
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void Table::drawTable()
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{
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const int border = tableBorderWidth > 0 ? tableBorderWidth : 0;
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// 表体从“表头之下”开始
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dX = x + border;
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dY = y + border + lineHeights.at(0) + TABLE_HEADER_EXTRA; // 表头高度
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uY = dY + lineHeights.at(0) + TABLE_ROW_EXTRA;
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size_t startRow = (currentPage - 1) * rowsPerPage;
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size_t endRow = startRow + (size_t)rowsPerPage < data.size() ? startRow + (size_t)rowsPerPage : data.size();
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for (size_t i = startRow; i < endRow; ++i)
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{
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for (size_t j = 0; j < data[i].size(); ++j)
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{
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uX = dX + colWidths.at(j) + TABLE_COL_GAP;
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fillrectangle(dX, dY, uX, uY);
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outtextxy(dX + TABLE_PAD_X, dY + TABLE_PAD_Y, LPCTSTR(data[i][j].c_str()));
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dX += colWidths.at(j) + TABLE_COL_GAP;
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}
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dX = x + border;
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dY = uY;
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uY = dY + lineHeights.at(0) + TABLE_ROW_EXTRA;
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}
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}
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void Table::drawHeader()
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{
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const int border = tableBorderWidth > 0 ? tableBorderWidth : 0;
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// 内容区原点 = x+border, y+border
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dX = x + border;
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dY = y + border;
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uY = dY + lineHeights.at(0) + TABLE_HEADER_EXTRA;
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for (size_t i = 0; i < headers.size(); i++)
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{
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uX = dX + colWidths.at(i) + TABLE_COL_GAP; // 注意这里是 +20，和表体一致
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fillrectangle(dX, dY, uX, uY);
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outtextxy(dX + TABLE_PAD_X, dY + TABLE_PAD_Y, LPCTSTR(headers[i].c_str()));
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dX += colWidths.at(i) + TABLE_COL_GAP; // 列间距 20
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}
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}
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// 遍历所有数据单元和表头，计算每列的最大宽度和每行的最大高度，
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// 为后续绘制表格单元格提供尺寸依据。此计算在数据变更时自动触发。
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void Table::initTextWaH()
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{
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// 和绘制一致的单元内边距
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const int padX = TABLE_PAD_X; // 左右 padding
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const int padY = TABLE_PAD_Y; // 上下 padding
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const int colGap = TABLE_COL_GAP; // 列间距
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const int border = tableBorderWidth > 0 ? tableBorderWidth : 0;
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// 统计每列最大文本宽 & 每列最大行高（包含数据 + 表头）
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colWidths.assign(headers.size(), 0);
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lineHeights.assign(headers.size(), 0);
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// 先看数据
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for (size_t i = 0; i < data.size(); ++i)
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{
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for (size_t j = 0; j < data[i].size(); ++j)
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{
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const int w = textwidth(LPCTSTR(data[i][j].c_str()));
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const int h = textheight(LPCTSTR(data[i][j].c_str()));
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if (w > colWidths[j]) colWidths[j] = w;
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if (h > lineHeights[j]) lineHeights[j] = h;
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}
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}
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// 再用表头更新（谁大取谁）
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for (size_t j = 0; j < headers.size(); ++j)
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{
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const int w = textwidth(LPCTSTR(headers[j].c_str()));
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const int h = textheight(LPCTSTR(headers[j].c_str()));
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if (w > colWidths[j]) colWidths[j] = w;
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if (h > lineHeights[j]) lineHeights[j] = h;
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}
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// 用“所有列的最大行高”作为一行的基准高度
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int maxLineH = 0;
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for (int h : lineHeights)
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if (h > maxLineH)
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maxLineH = h;
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// 列宽包含左右 padding：在计算完最大文本宽度后，加上 2*padX 作为单元格内边距
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for (size_t j = 0; j < colWidths.size(); ++j) {
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colWidths[j] += 2 * padX;
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}
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// 表内容总宽 = Σ(列宽 + 列间距)
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int contentW = 0;
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for (size_t j = 0; j < colWidths.size(); ++j)
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contentW += colWidths[j] + colGap;
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// 表头高 & 行高（与 drawHeader/drawTable 内部一致：+上下 padding）
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const int headerH = maxLineH + 2 * padY;
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const int rowH = maxLineH + 2 * padY;
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const int rowsH = rowH * rowsPerPage;
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// 页脚：
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const int pageTextH = textheight(LPCTSTR(pageNumtext.c_str()));
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const int btnTextH = textheight(LPCTSTR("上一页"));
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const int btnPadV = TABLE_BTN_TEXT_PAD_V;
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const int btnH = btnTextH + 2 * btnPadV;
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const int footerPad = TABLE_FOOTER_PAD;
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const int footerH = (pageTextH > btnH ? pageTextH : btnH) + footerPad;
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// 最终表宽/高：内容 + 对称边框
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this->width = contentW + (border << 1);
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this->height = headerH + rowsH + footerH + (border << 1);
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// 记录原始宽高用于锚点布局的参考；此处仅在初始化单元尺寸时重置
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this->localWidth = this->width;
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this->localHeight = this->height;
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}
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void Table::initButton()
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{
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const int gap = TABLE_BTN_GAP;
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const int padH = TABLE_BTN_PAD_H;
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const int padV = TABLE_BTN_PAD_V; // 按钮垂直内边距
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int pageW = textwidth(LPCTSTR(pageNumtext.c_str()));
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int lblH = textheight(LPCTSTR(pageNumtext.c_str()));
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// 统一按钮尺寸（用按钮文字自身宽高 + padding）
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int prevW = textwidth(LPCTSTR(TABLE_STR_PREV)) + padH * 2;
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int nextW = textwidth(LPCTSTR(TABLE_STR_NEXT)) + padH * 2;
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int btnH = lblH + padV * 2;
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// 基于“页码标签”的矩形来摆放：
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// prev 在页码左侧 gap 处；next 在右侧 gap 处；Y 对齐 pY
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int prevX = pX - gap - prevW;
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int nextX = pX + pageW + gap;
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int btnY = pY; // 和页码同一基线
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if (!prevButton)
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prevButton = new Button(prevX, btnY, prevW, btnH, TABLE_STR_PREV, RGB(0, 0, 0), RGB(255, 255, 255));
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else
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{
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prevButton->setX(prevX);
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prevButton->setY(btnY);
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}
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if (!nextButton)
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nextButton = new Button(nextX, btnY, nextW, btnH, TABLE_STR_NEXT, RGB(0, 0, 0), RGB(255, 255, 255));
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else
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{
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nextButton->setX(nextX);
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nextButton->setY(btnY);
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}
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prevButton->textStyle = this->textStyle;
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nextButton->textStyle = this->textStyle;
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prevButton->setFillMode(tableFillMode);
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nextButton->setFillMode(tableFillMode);
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prevButton->setOnClickListener([this]()
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{
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if (currentPage > 1)
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{
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--currentPage;
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dirty = true;
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if (pageNum) pageNum->setDirty(true);
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}
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});
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nextButton->setOnClickListener([this]()
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{
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if (currentPage < totalPages)
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{
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++currentPage;
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dirty = true;
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if (pageNum) pageNum->setDirty(true);
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}
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});
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isNeedButtonAndPageNum = false;
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}
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void Table::initPageNum()
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{
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// 统一坐标系
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const int border = tableBorderWidth > 0 ? tableBorderWidth : 0;
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const int baseH = lineHeights.empty() ? 0 : lineHeights.at(0);
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const int headerH = baseH + TABLE_HEADER_EXTRA;
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const int rowsH = baseH * rowsPerPage + rowsPerPage * TABLE_ROW_EXTRA;
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// 内容宽度 = sum(colWidths + 20)；initTextWaH() 已把 this->width += 2*border
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// 因此 contentW = this->width - 2*border 更稳妥
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const int contentW = this->width - (border << 1);
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// 页脚顶部位置（表头 + 可视数据区 之后）
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pY = y + border + headerH + rowsH + TABLE_FOOTER_BLANK; // +8 顶部留白
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// 按理来说 x + (this->width - textW) / 2;就可以
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// 但是在绘制时，发现控件偏右，因此减去40
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int textW = textwidth(LPCTSTR(pageNumtext.c_str()));
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pX = x + TABLE_PAGE_TEXT_OFFSET_X +(this->width - textW) / 2;
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if (!pageNum)
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pageNum = new Label(pX, pY, pageNumtext);
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else
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{
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pageNum->setX(pX);
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pageNum->setY(pY);
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}
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pageNum->textStyle = this->textStyle;
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if (StellarX::FillMode::Null == tableFillMode)
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pageNum->setTextdisap(true); // 透明文本
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}
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void Table::drawPageNum()
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{
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pageNumtext = "第";
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pageNumtext+= std::to_string(currentPage);
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pageNumtext += "页/共";
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pageNumtext += std::to_string(totalPages);
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pageNumtext += "页";
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if (nullptr == pageNum || isNeedButtonAndPageNum)
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initPageNum();
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pageNum->setText(pageNumtext);
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pageNum->textStyle = this->textStyle;
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if (StellarX::FillMode::Null == tableFillMode)
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pageNum->setTextdisap(true);
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pageNum->draw();
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}
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void Table::drawButton()
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{
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if ((nullptr == prevButton || nullptr == nextButton)|| isNeedButtonAndPageNum)
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initButton();
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this->prevButton->textStyle = this->textStyle;
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this->nextButton->textStyle = this->textStyle;
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this->prevButton->setFillMode(tableFillMode);
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this->nextButton->setFillMode(tableFillMode);
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this->prevButton->setButtonShape(StellarX::ControlShape::B_RECTANGLE);
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this->nextButton->setButtonShape(StellarX::ControlShape::B_RECTANGLE);
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this->prevButton->setDirty(true);
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this->nextButton->setDirty(true);
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prevButton->draw();
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nextButton->draw();
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}
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void Table::setX(int x)
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{
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this->x = x;
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isNeedButtonAndPageNum = true;
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dirty = true;
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}
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void Table::setY(int y)
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{
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this->y = y;
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isNeedButtonAndPageNum = true;
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dirty = true;
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}
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void Table::setWidth(int width)
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{
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// 调整列宽以匹配新的表格总宽度。不修改 localWidth，避免累计误差。
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// 当 width 与当前 width 不同时，根据差值平均分配到各列，余数依次累加/扣减。
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const int ncols = static_cast<int>(colWidths.size());
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if (ncols <= 0) {
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this->width = width;
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isNeedButtonAndPageNum = true;
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return;
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}
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int diff = width - this->width;
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// 基础增量：整除部分
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int baseChange = diff / ncols;
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int remainder = diff % ncols;
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for (int i = 0; i < ncols; ++i) {
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int change = baseChange;
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if (remainder > 0) {
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change += 1;
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remainder -= 1;
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} else if (remainder < 0) {
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change -= 1;
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remainder += 1;
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}
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int newWidth = colWidths[i] + change;
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// 限制最小宽度为 1，防止出现负值
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if (newWidth < 1) newWidth = 1;
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colWidths[i] = newWidth;
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}
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this->width = width;
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// 需要重新布局页脚元素
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isNeedButtonAndPageNum = true;
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}
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void Table::setHeight(int height)
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{
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//高度不变
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}
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Table::Table(int x, int y)
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:Control(x, y, 0, 0)
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{
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this->id = "Table";
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}
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Table::~Table()
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{
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if (this->prevButton)
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delete this->prevButton;
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if (this->nextButton)
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delete this->nextButton;
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if (this->pageNum)
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delete this->pageNum;
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if (this->saveBkImage)
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delete this->saveBkImage;
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this->prevButton = nullptr;
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this->nextButton = nullptr;
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this->pageNum = nullptr;
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this->saveBkImage = nullptr;
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}
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void Table::draw()
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{
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//在这里先初始化保证翻页按钮不为空
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// 在一些容器中，Table不会被立即绘制可能导致事件事件传递时触发空指针警报
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// 由于单元格初始化依赖字体数据所以先设置一次字体样式
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// 先保存当前绘图状态
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saveStyle();
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// 设置表格样式
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setfillcolor(tableBkClor);
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setlinecolor(tableBorderClor);
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settextstyle(textStyle.nHeight, textStyle.nWidth, textStyle.lpszFace,
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textStyle.nEscapement, textStyle.nOrientation, textStyle.nWeight,
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textStyle.bItalic, textStyle.bUnderline, textStyle.bStrikeOut);
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settextcolor(textStyle.color);
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setlinestyle((int)tableLineStyle, tableBorderWidth);
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setfillstyle((int)tableFillMode);
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// 是否需要计算单元格尺寸
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if (isNeedCellSize)
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{
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initTextWaH();
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isNeedCellSize = false;
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}
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restoreStyle();
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if (this->dirty && this->show)
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{
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// 先保存当前绘图状态
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saveStyle();
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// 设置表格样式
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setfillcolor(tableBkClor);
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setlinecolor(tableBorderClor);
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settextstyle(textStyle.nHeight, textStyle.nWidth, textStyle.lpszFace,
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textStyle.nEscapement, textStyle.nOrientation, textStyle.nWeight,
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textStyle.bItalic, textStyle.bUnderline, textStyle.bStrikeOut);
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settextcolor(textStyle.color);
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setlinestyle((int)tableLineStyle, tableBorderWidth);
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setfillstyle((int)tableFillMode);
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setbkmode(TRANSPARENT);
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if (isNeedDrawHeaders)
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{
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// 重新设置表格样式
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setfillcolor(tableBkClor);
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setlinecolor(tableBorderClor);
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settextstyle(textStyle.nHeight, textStyle.nWidth, textStyle.lpszFace,
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textStyle.nEscapement, textStyle.nOrientation, textStyle.nWeight,
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textStyle.bItalic, textStyle.bUnderline, textStyle.bStrikeOut);
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settextcolor(textStyle.color);
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setlinestyle((int)tableLineStyle, tableBorderWidth);
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setfillstyle((int)tableFillMode);
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setbkmode(TRANSPARENT);
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}
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// 在绘制前先恢复并更新背景快照：
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// 如果已有快照且尺寸发生变化，先恢复旧快照以清除上一次绘制，然后丢弃旧快照再重新抓取新的区域。
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if (hasSnap)
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{
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// 始终先恢复旧背景，清除上一帧内容
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restBackground();
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// 当尺寸变化或缓存图像无效时，需要重新截图
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if (!saveBkImage || saveWidth != this->width || saveHeight != this->height)
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{
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discardBackground();
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saveBackground(this->x, this->y, this->width, this->height);
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}
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}
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else
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{
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// 首次绘制时无背景缓存，直接抓取
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saveBackground(this->x, this->y, this->width, this->height);
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}
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// 恢复最新的背景，保证绘制区域干净
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restBackground();
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// 绘制表头
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dX = x;
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dY = y;
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drawHeader();
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this->isNeedDrawHeaders = false;
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// 绘制当前页
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drawTable();
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// 绘制页码标签
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drawPageNum();
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// 绘制翻页按钮
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if (this->isShowPageButton)
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drawButton();
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// 恢复绘图状态
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restoreStyle();
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dirty = false; // 标记不需要重绘
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}
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}
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bool Table::handleEvent(const ExMessage& msg)
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{
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if(!show)return false;
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bool consume = false;
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if(!this->isShowPageButton)
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return consume;
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else
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{
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if(prevButton)consume = prevButton->handleEvent(msg);
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if (nextButton&&!consume)
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consume = nextButton->handleEvent(msg);
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}
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if (dirty)
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requestRepaint(parent);
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return consume;
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}
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void Table::setHeaders(std::initializer_list<std::string> headers)
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{
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this->headers.clear();
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for (auto& lis : headers)
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this->headers.push_back(lis);
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isNeedCellSize = true; // 标记需要重新计算单元格尺寸
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isNeedDrawHeaders = true; // 标记需要重新绘制表头
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dirty = true;
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}
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void Table::setData( std::vector<std::string> data)
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{
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if (data.size() < headers.size())
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for (int i = 0; data.size() <= headers.size(); i++)
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data.push_back("");
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this->data.push_back(data);
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totalPages = ((int)this->data.size() + rowsPerPage - 1) / rowsPerPage;
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if (totalPages < 1)
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totalPages = 1;
|
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isNeedCellSize = true; // 标记需要重新计算单元格尺寸
|
||
dirty = true;
|
||
}
|
||
|
||
void Table::setData( std::initializer_list<std::vector<std::string>> data)
|
||
{
|
||
for (auto lis : data)
|
||
if (lis.size() < headers.size())
|
||
{
|
||
for (size_t i = lis.size(); i< headers.size(); i++)
|
||
lis.push_back("");
|
||
this->data.push_back(lis);
|
||
}
|
||
else
|
||
this->data.push_back(lis);
|
||
|
||
totalPages = ((int)this->data.size() + rowsPerPage - 1) / rowsPerPage;
|
||
if (totalPages < 1)
|
||
totalPages = 1;
|
||
isNeedCellSize = true; // 标记需要重新计算单元格尺寸
|
||
dirty = true;
|
||
}
|
||
|
||
void Table::setRowsPerPage(int rows)
|
||
{
|
||
this->rowsPerPage = rows;
|
||
totalPages = ((int)data.size() + rowsPerPage - 1) / rowsPerPage;
|
||
if (totalPages < 1)
|
||
totalPages = 1;
|
||
isNeedCellSize = true; // 标记需要重新计算单元格尺寸
|
||
dirty = true;
|
||
}
|
||
|
||
void Table::showPageButton(bool isShow)
|
||
{
|
||
this->isShowPageButton = isShow;
|
||
this->dirty = true;
|
||
}
|
||
|
||
void Table::setTableBorder(COLORREF color)
|
||
{
|
||
this->tableBorderClor = color;
|
||
this->dirty = true;
|
||
}
|
||
|
||
void Table::setTableBk(COLORREF color)
|
||
{
|
||
this->tableBkClor = color;
|
||
this->dirty = true;
|
||
}
|
||
|
||
void Table::setTableFillMode(StellarX::FillMode mode)
|
||
{
|
||
if (StellarX::FillMode::Solid == mode || StellarX::FillMode::Null == mode)
|
||
this->tableFillMode = mode;
|
||
else
|
||
this->tableFillMode = StellarX::FillMode::Solid;
|
||
if (this->prevButton && this->nextButton && this->pageNum)
|
||
{
|
||
this->prevButton->textStyle = this->textStyle;
|
||
this->nextButton->textStyle = this->textStyle;
|
||
this->prevButton->setFillMode(tableFillMode);
|
||
this->nextButton->setFillMode(tableFillMode);
|
||
if (StellarX::FillMode::Null == tableFillMode)
|
||
pageNum->setTextdisap(true);
|
||
this->prevButton->setDirty(true);
|
||
this->nextButton->setDirty(true);
|
||
}
|
||
this->dirty = true;
|
||
}
|
||
|
||
void Table::setTableLineStyle(StellarX::LineStyle style)
|
||
{
|
||
this->tableLineStyle = style;
|
||
this->dirty = true;
|
||
}
|
||
|
||
void Table::setTableBorderWidth(int width)
|
||
{
|
||
this->tableBorderWidth = width;
|
||
this->dirty = true;
|
||
}
|
||
|
||
void Table::onWindowResize()
|
||
{
|
||
Control::onWindowResize(); // 先处理自己
|
||
if (this->prevButton && this->nextButton && this->pageNum)
|
||
{
|
||
prevButton->onWindowResize();
|
||
nextButton->onWindowResize();
|
||
pageNum->onWindowResize();
|
||
}
|
||
}
|
||
|
||
int Table::getCurrentPage() const
|
||
{
|
||
return this->currentPage;
|
||
}
|
||
|
||
int Table::getTotalPages() const
|
||
{
|
||
return this->totalPages;
|
||
}
|
||
|
||
int Table::getRowsPerPage() const
|
||
{
|
||
return this->rowsPerPage;
|
||
}
|
||
|
||
bool Table::getShowPageButton() const
|
||
{
|
||
return this->isShowPageButton;
|
||
}
|
||
|
||
COLORREF Table::getTableBorder() const
|
||
{
|
||
return this->tableBorderClor;
|
||
}
|
||
|
||
COLORREF Table::getTableBk() const
|
||
{
|
||
return this->tableBkClor;
|
||
}
|
||
|
||
StellarX::FillMode Table::getTableFillMode() const
|
||
{
|
||
return this->tableFillMode;
|
||
}
|
||
|
||
StellarX::LineStyle Table::getTableLineStyle() const
|
||
{
|
||
return this->tableLineStyle;
|
||
}
|
||
|
||
std::vector<std::string> Table::getHeaders() const
|
||
{
|
||
return this->headers;
|
||
}
|
||
|
||
std::vector<std::vector<std::string>> Table::getData() const
|
||
{
|
||
return this->data;
|
||
}
|
||
|
||
int Table::getTableBorderWidth() const
|
||
{
|
||
return this->tableBorderWidth;
|
||
}
|
||
|
||
int Table::getTableWidth() const
|
||
{
|
||
int temp = 0;
|
||
for (auto& w : colWidths)
|
||
temp += w;
|
||
return temp;
|
||
}
|
||
|
||
int Table::getTableHeight() const
|
||
{
|
||
return 0;
|
||
}
|
||
|
||
|