Riched-Text Edit Deployer

Cross-platform simplified rich-text edit widget

跨平台简化富文本编辑控件

How to use

• cross-platform

implement your custom RichED::IEDTextPlatform then pass it to RichED::CEDTextDocument. you can find demo-code in DWnD2D for 'DWrite+Direct2D', or FTnSDL for 'FreeType+SDL'.

note: demo-code above was not optimized.

• gui operation funcion

funciton with 'Gui' prefix in CEDTextDocument is high-level function for GUI operation to meet basic needs, not for all needs.

• undo-stack operation

low-level function sucu as CEDTextDocument::InsertText should be called between CEDTextDocument::BeginOP and CEDTextDocument::EndOP to group an undo-stack operation. 'replace text' should be:

doc.BeginOP();
doc.RemoveText(begin, end);
doc.InsertText(begin, text);
doc.EndOP();

if a low-level function be called out of 'Begin/EndOP', nothing would be recorded on undo-stack.

如何使用

• 跨平台

实现自定义的RichED::IEDTextPlatform, 并且传给RichED::CEDTextDocument. 你可以在DWnD2D下面找到 DWrite+Direct2D平台, 或者在 FTnSDL下找到FreeType+SDL平台的DEMO代码.

不过请注意: 上述的平台代码仅仅作为例子, 并没有进行优化.

• Gui操作

CEDTextDocument内部会有一些以'Gui'的函数用来满足基本的GUI需求, 不过仅仅是基本的.

• 撤销栈

一些低级的函数, 比如说 CEDTextDocument::InsertText, 应该被CEDTextDocument::BeginOP 和CEDTextDocument::EndOP函数包裹, 用来生成一个撤销栈操作(OP). 比如'替换文本'的操作应该是:

doc.BeginOP();
doc.RemoveText(begin, end);
doc.InsertText(begin, text);
doc.EndOP();

如果这些低级的函数没有被上述函数包裹, 撤销栈不会记录下来.

License

• RichED under MIT License
• more detail, see License.txt