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add TextLine

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This commit is contained in:
梦凌汐 2024-12-06 06:30:20 +08:00
parent 0d3a8ddf74
commit ca4d37ce3b
7 changed files with 317 additions and 0 deletions
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30
components/BaseComponent.h Normal file
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#ifndef BASE_COMPONENT_H
#define BASE_COMPONENT_H
class BaseComponent {
protected:
int top, left, width, height;
public:
BaseComponent(int top, int left, int width, int height) : top(top), left(left), width(width), height(height) {};
virtual ~BaseComponent() {};
void setTop(int top);
void setLeft(int left);
void setWidth(int width);
void setHeight(int height);
int getTop();
int getLeft();
int getWidth();
int getHeight();
void setPosition(int top, int left);
void setSize(int width, int height);
void setBounds(int top, int left, int width, int height);
virtual void draw() = 0;
virtual void onKeyPress(int key) = 0;
};
#endif // BASE_COMPONENT_H

132
components/TextArea.h Normal file
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#ifndef TEXTLINE_H
#define TEXTLINE_H
#include "BaseComponent.h"
#include <windows.h>
#include <vector>
#include "../utils/RichText.h"
class TextArea : public BaseComponent {
private:
RichText text;
int viewLeft = 0, viewTop = 0; // 视图左上角坐标
int findnth(std::string str, std::string target, int n){
if(n == 0) return -1;
int count = 0;
unsigned int begin=0;
while((begin = str.find(target, begin)) != std::string::npos){
count++;
begin += target.length();
if(n == count){
return begin - 1;
}
}
return -2;
}
public:
TextArea(int top, int left, int width, int height) : BaseComponent(top, left, width, height){
text = RichText();
}
TextArea(int top, int left, int width, int height, const RichText& text) : BaseComponent(top, left, width, height){
this->text = text;
}
~TextArea() override {}
void setText(const RichText& text) {
this->text = text;
}
RichText getText() {
return text;
}
void draw() override {
//使用渲染边框，超出屏幕边缘的区域不渲染
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
//获得缓冲区信息
CONSOLE_SCREEN_BUFFER_INFO csbi;
GetConsoleScreenBufferInfo(hConsole, &csbi);
//绘制边框到缓冲区
for(int i = 0; i < height && top + i < csbi.dwSize.Y; i++) {
if(left >= 0) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left - 1), static_cast<short>(top + i - 1)});
printf("|");
}
if(left + width - 1 < csbi.dwSize.X) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + width - 2), static_cast<short>(top + i - 1)});
printf("|");
}
}
for(int i = 0; i < width && left + i < csbi.dwSize.X; i++) {
if(top >= 0) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + i - 1), static_cast<short>(top - 1)});
printf("-");
}
if(top + height - 1 < csbi.dwSize.Y) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + i - 1), static_cast<short>(top + height - 2)});
printf("-");
}
}
//绘制文本到缓冲区，保证不超出边框
// int textWidth = 0, i = 0;
// while(textWidth <= width - 2 && left + textWidth + 2 < csbi.dwSize.X && i < text.size()) {
// auto part = text.getParts()[i];
// SetConsoleCursorPosition(hConsole, {static_cast<short>(left + textWidth), static_cast<short>(top)});
// SetConsoleTextAttribute(hConsole, BackgroundColorToWinColor(getBackColor(part.color)) | FrontColorToWinColor(getFrontColor(part.color)));
// if(left + textWidth + part.text.length() + 2 < csbi.dwSize.X && textWidth + part.text.length() <= width - 2) {
// printf("%s", part.text.c_str());
// } else {
// printf("%s", part.text.substr(0, std::min(csbi.dwSize.X - left - textWidth - 2, width - 2 - textWidth)).c_str());
// }
// textWidth += text.getParts()[i].text.length();
// i++;
// }
// 根据换行预处理文本
std::vector<RichText> lines;
RichText line;
for(auto part : text.getParts()) {
if(part.text.find('\n') == std::string::npos) {
line += part;
} else {
unsigned int begin = 0;
while((begin = part.text.find('\n', begin)) != std::string::npos) {
line += StringPart(part.text.substr(0, begin), part.color);
lines.push_back(line);
line = RichText();
part.text = part.text.substr(begin + 1);
}
line += part;
}
}
for(int i = viewTop; i < viewTop + height - 2 && i < lines.size(); i++) {
line = lines[i];
RichText drawTarget = line.substr(viewLeft, width - 2);
int textWidth = 0, ite = 0;
while(textWidth <= width - 2 && left + textWidth + 2 < csbi.dwSize.X && ite < text.size()) {
auto part = line.getParts()[i];
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + textWidth), static_cast<short>(top)});
SetConsoleTextAttribute(hConsole, BackgroundColorToWinColor(getBackColor(part.color)) | FrontColorToWinColor(getFrontColor(part.color)));
if(left + textWidth + part.text.length() + 2 < csbi.dwSize.X && textWidth + part.text.length() <= width - 2) {
printf("%s", part.text.c_str());
} else {
printf("%s", part.text.substr(0, std::min(csbi.dwSize.X - left - textWidth - 2, width - 2 - textWidth)).c_str());
}
textWidth += part.text.length();
ite++;
}
}
SetConsoleTextAttribute(hConsole, BackgroundColorToWinColor(COLOR_BLACK) | FrontColorToWinColor(COLOR_WHITE));
}
void onKeyPress(int key) override {
//不处理按键
}
};
#endif

23
components/TextArea_test.cpp Normal file
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#include "BaseComponent.h"
#include "TextArea.h"
#include "../utils/RichText.h"
int main() {
RichText richText;
richText = "Hello, World";
richText += StringPart(" with colors!", COLOR_RED);
richText += " And more text.";
richText += StringPart(" And more more more text.", COLOR_GREEN);
richText += " And more more more more more text.";
richText += StringPart(" And more more more more more more text.", COLOR_BLUE);
richText += " And more more more more more more more text.";
richText += StringPart(" And more more more more more more more more text.", COLOR_YELLOW);
richText += " And more more more more more more more more more text.";
richText += StringPart(" And more more more more more more more more more more text.", COLOR_CYAN);
TextArea textArea(3, 3, 40, 5, richText);
textArea.draw();
printf("\n");
return 0;
}

80
components/TextLine.h Normal file
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#ifndef TEXTLINE_H
#define TEXTLINE_H
#include "BaseComponent.h"
#include <windows.h>
#include "../utils/RichText.h"
class TextLine : public BaseComponent {
private:
RichText text;
public:
TextLine(int top, int left, int width, int height) : BaseComponent(top, left, width, height){
text = RichText();
}
TextLine(int top, int left, int width, int height, const RichText& text) : BaseComponent(top, left, width, height){
this->text = text;
}
~TextLine() override {}
void setText(const RichText& text) {
this->text = text;
}
RichText getText() {
return text;
}
void draw() override {
//使用渲染边框，超出屏幕边缘的区域不渲染
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
//获得缓冲区信息
CONSOLE_SCREEN_BUFFER_INFO csbi;
GetConsoleScreenBufferInfo(hConsole, &csbi);
//绘制边框到缓冲区
for(int i = 0; i < height && top + i < csbi.dwSize.Y; i++) {
if(left >= 0) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left - 1), static_cast<short>(top + i - 1)});
printf("|");
}
if(left + width - 1 < csbi.dwSize.X) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + width - 2), static_cast<short>(top + i - 1)});
printf("|");
}
}
for(int i = 0; i < width && left + i < csbi.dwSize.X; i++) {
if(top >= 0) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + i - 1), static_cast<short>(top - 1)});
printf("-");
}
if(top + height - 1 < csbi.dwSize.Y) {
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + i - 1), static_cast<short>(top + height - 2)});
printf("-");
}
}
//绘制文本到缓冲区，保证不超出边框
int textWidth = 0, i = 0;
while(textWidth <= width - 2 && left + textWidth + 2 < csbi.dwSize.X && i < text.size()) {
auto part = text.getParts()[i];
SetConsoleCursorPosition(hConsole, {static_cast<short>(left + textWidth), static_cast<short>(top)});
SetConsoleTextAttribute(hConsole, BackgroundColorToWinColor(getBackColor(part.color)) | FrontColorToWinColor(getFrontColor(part.color)));
if(left + textWidth + part.text.length() + 2 < csbi.dwSize.X && textWidth + part.text.length() <= width - 2) {
printf("%s", part.text.c_str());
} else {
printf("%s", part.text.substr(0, std::min(csbi.dwSize.X - left - textWidth - 2, width - 2 - textWidth)).c_str());
}
textWidth += part.text.length();
i++;
}
SetConsoleTextAttribute(hConsole, BackgroundColorToWinColor(COLOR_BLACK) | FrontColorToWinColor(COLOR_WHITE));
}
void onKeyPress(int key) override {
//不处理按键
}
};
#endif

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components/TextLine_test.cpp Normal file
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#include "BaseComponent.h"
#include "TextLine.h"
#include "../utils/RichText.h"
int main() {
RichText richText;
richText = "Hello, World";
richText += StringPart(" with colors!", COLOR_RED);
TextLine textLine(2, 5, 23, 3);
textLine.setText(richText);
textLine.draw();
TextLine textLine2(6, 5, 50, 3);
textLine2.setText(richText + StringPart(" and more colors!", COLOR_LIGHTCYAN));
textLine2.draw();
printf("\n");
return 0;
}

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main.cpp
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#include "components/BaseComponent.h"
#include "components/TextLine.h"
#include "utils/RichText.h"
int main() {
RichText richText;
richText = "Hello, World";
richText += StringPart(" with colors!", COLOR_RED);
TextLine textLine(2, 2, 23, 3);
textLine.setText(richText);
textLine.draw();
TextLine textLine2(7, 5, 40, 3);
textLine2.setText(richText + StringPart(" and more colors!", COLOR_LIGHTCYAN));
textLine2.draw();
printf("\n");
return 0;
}

12
utils/RichText.h
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@ -143,6 +143,18 @@ public:
} }
return result; return result;
} }
int size() const {
return parts.size();
}
int length() const {
int result = 0;
for (const auto& part : parts) {
result += part.text.length();
}
return result;
}
}; };