create pdf table in c++
时间: 2024-04-15 20:31:50 浏览: 12
To create a PDF table in C++, you can use a library like `libharu` or `PDFlib`. Here's an example of how to create a PDF table using the `libharu` library:
```cpp
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <hpdf.h>
void error_handler(HPDF_STATUS error_no, HPDF_STATUS detail_no, void *user_data)
{
printf("Error: %04X, detail_no=%d\n", (unsigned int)error_no,
(unsigned int)detail_no);
exit(-1);
}
int main()
{
HPDF_Doc pdf;
HPDF_Page page;***
相关问题
create pdf table using libharu in c++ 11
Certainly! Here's an example of how you can create a PDF table using the `libharu` library in C++11:
```cpp
#include <iostream>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <hpdf.h>
void error_handler(HPDF_STATUS error_no, HPDF_STATUS detail_no, void *user_data) {
std::cout << "Error: " << std::hex << error_no << ", detail_no=" << detail_no << std::endl;
exit(-1);
}
int main() {
HPDF_Doc pdf = HPDF_New(error_handler, nullptr);
if (!pdf) {
std::cout << "Error: Failed to create PDF object" << std::endl;
return -1;
}
if (HPDF_SetCompressionMode(pdf, HPDF_COMP_ALL) != HPDF_OK) {
std::cout << "Error: Failed to set compression mode" << std::endl;
HPDF_Free(pdf);
return -1;
}
HPDF_Page page = HPDF_AddPage(pdf);
if (!page) {
std::cout << "Error: Failed to create PDF page" << std::endl;
HPDF_Free(pdf);
return -1;
}
if (HPDF_Page_SetSize(page, HPDF_PAGE_SIZE_A4) != HPDF_OK) {
std::cout << "Error: Failed to set page size" << std::endl;
HPDF_Free(pdf);
return -1;
}
HPDF_Font font = HPDF_GetFont(pdf, "Helvetica", nullptr);
if (!font) {
std::cout << "Error: Failed to get font" << std::endl;
HPDF_Free(pdf);
return -1;
}
const int row_count = 5;
const int col_count = 3;
const float margin = 50.0;
const float table_width = HPDF_Page_GetWidth(page) - 2 * margin;
const float table_height = HPDF_Page_GetHeight(page) - 2 * margin;
const float cell_width = table_width / col_count;
const float cell_height = 40.0;
HPDF_Page_SetFontAndSize(page, font, 12.0);
for (int i = 0; i <= row_count; ++i) {
HPDF_Page_SetLineWidth(page, 0.5);
HPDF_Page_MoveTo(page, margin, HPDF_Page_GetHeight(page) - margin - (i + 1) * cell_height);
HPDF_Page_LineTo(page, margin + table_width, HPDF_Page_GetHeight(page) - margin - (i + 1) * cell_height);
HPDF_Page_Stroke(page);
}
for (int i = 0; i <= col_count; ++i) {
HPDF_Page_SetLineWidth(page, 0.5);
HPDF_Page_MoveTo(page, margin + i * cell_width, HPDF_Page_GetHeight(page) - margin);
HPDF_Page_LineTo(page, margin + i * cell_width, HPDF_Page_GetHeight(page) - margin - table_height);
HPDF_Page_Stroke(page);
}
for (int i = 0; i < row_count; ++i) {
for (int j = 0; j < col_count; ++j) {
char cell_text[20];
sprintf(cell_text, "Cell %d-%d", i + 1, j + 1);
HPDF_Page_BeginText(page);
HPDF_Page_SetTextLeading(page, 14.0);
HPDF_Page_MoveTextPos(page, margin + j * cell_width + 2, HPDF_Page_GetHeight(page) - margin - (i + 1) * cell_height + 2);
HPDF_Page_ShowText(page, cell_text);
HPDF_Page_EndText(page);
}
}
if (HPDF_SaveToFile(pdf, "table_example.pdf") != HPDF_OK) {
std::cout << "Error: Failed to save PDF file" << std::endl;
HPDF_Free(pdf);
return -1;
}
HPDF_Free(pdf);
std::cout << "PDF created successfully!" << std::endl;
return 0;
}
```
In this example, we create a PDF object using `HPDF_New` and set the compression mode using `HPDF_SetCompressionMode`. We add a new page to the PDF using `HPDF_AddPage` and set its size to A4 using `HPDF_Page_SetSize`. We then retrieve the font using `HPDF_GetFont` and set it with a specific size using `HPDF_Page_SetFontAndSize`.
Next, we draw the table lines using `HPDF_Page_SetLineWidth`, `HPDF_Page_MoveTo`, `HPDF_Page_LineTo`, and `HPDF_Page_Stroke`. Inside the nested loops, we generate cell text and display it within each cell using `HPDF_Page_BeginText`, `HPDF_Page_SetTextLeading`, `HPDF_Page_MoveTextPos`, `HPDF_Page_ShowText`, and `HPDF_Page_EndText`.
Finally, we save the PDF to a file using `HPDF_SaveToFile` and free the allocated resources using `HPDF_Free`.
Make sure you have the `libharu` library installed and properly linked to your C++ project.
create pdf table using libharu
Sure! Here's an example of how you can create a PDF table using the `libharu` library in C++:
```cpp
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <hpdf.h>
void error_handler(HPDF_STATUS error_no, HPDF_STATUS detail_no, void *user_data)
{
printf("Error: %04X, detail_no=%d\n", (unsigned int)error_no,
(unsigned int)detail_no);
exit(-1);
}
int main()
{
HPDF_Doc pdf;
HPDF_Page page;
const char *filename = "table_example.pdf";
const char *title = "PDF Table Example";
const int row_count = 5;
const int col_count = 3;
const float margin = 50;
const float table_width = HPDF_GetPageWidth(page) - 2 * margin;
const float table_height = HPDF_GetPageHeight(page) - 2 * margin;
const float cell_width = table_width / col_count;
const float cell_height = 40;
pdf = HPDF_New(error_handler, NULL);
if (!pdf)
{
printf("Error: Failed to create PDF object\n");
return -1;
}
if (setjmp(HPDF_JMP_BUF(pdf)))
{
HPDF_Free(pdf);
return -1;
}
page = HPDF_AddPage(pdf);
HPDF_Page_SetSize(page, HPDF_PAGE_SIZE_A4);
HPDF_Page_SetRGBFill(page, 0, 0, 0);
HPDF_Page_SetRGBStroke(page, 0, 0, 0);
HPDF_Font font = HPDF_GetFont(pdf, "Helvetica", "UTF-8");
HPDF_Page_SetFontAndSize(page, font, 12);
HPDF_Page_BeginText(page);
HPDF_Page_MoveTextPos(page, margin, HPDF_GetPageHeight(page) - margin - 20);
HPDF_Page_ShowText(page, title);
HPDF_Page_EndText(page);
HPDF_Page_SetLineWidth(page, 0.5);
for (int i = 0; i <= row_count; ++i)
{
HPDF_Page_MoveTo(page, margin, HPDF_GetPageHeight(page) - margin - (i + 1) * cell_height);
HPDF_Page_LineTo(page, margin + table_width, HPDF_GetPageHeight(page) - margin - (i + 1) * cell_height);
HPDF_Page_Stroke(page);
}
for (int i = 0; i <= col_count; ++i)
{
HPDF_Page_MoveTo(page, margin + i * cell_width, HPDF_GetPageHeight(page) - margin);
HPDF_Page_LineTo(page, margin + i * cell_width, HPDF_GetPageHeight(page) - margin - table_height);
HPDF_Page_Stroke(page);
}
for (int i = 0; i < row_count; ++i)
{
for (int j = 0; j < col_count; ++j)
{
char cell_text[20];
sprintf(cell_text, "Cell %d-%d", i + 1, j + 1);
HPDF_Page_BeginText(page);
HPDF_Page_MoveTextPos(page, margin + j * cell_width + 2, HPDF_GetPageHeight(page) - margin - (i + 1) * cell_height + 2);
HPDF_Page_ShowText(page, cell_text);
HPDF_Page_EndText(page);
}
}
HPDF_SaveToFile(pdf, filename);
HPDF_Free(pdf);
printf("PDF created successfully!\n");
return 0;
}
```
In this example, we create a PDF document using `HPDF_Doc` and add a new page using `HPDF_AddPage`. We then set the size of the page to A4 using `HPDF_Page_SetSize`. Next, we set the font and size for the text using `HPDF_Page_SetFontAndSize`. We draw the table lines and cell text using `HPDF_Page_MoveTo`, `HPDF_Page_LineTo`, and `HPDF_Page_ShowText`. Finally, we save the PDF to a file using `HPDF_SaveToFile` and free the resources using `HPDF_Free`.
Please note that you need to have `libharu` installed and linked with your project for this code to work.