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ClipAlphaHandler Class Reference

#include <UrlHandler.h>

Inheritance diagram for ClipAlphaHandler:
UrlHandler

Public Member Functions

bool canHandle (const char *method, const char *url) override
 
int handle (Request *request, MHD_Connection *connection, const char *url, const char *method, const char *upload_data, size_t *upload_data_size) override
 
- Public Member Functions inherited from UrlHandler
virtual ~UrlHandler ()
 
virtual bool canHandle (const char *method, const char *url)=0
 
virtual int handle (Request *request, MHD_Connection *connection, const char *url, const char *method, const char *upload_data, size_t *upload_data_size)=0
 

Detailed Description

Updates the clip visualization alpha. On all subsequent /img requests, the clip will be drawn in black with the specified alpha. 0 = no visible clip, 255 = fully opaque clip.

Definition at line 52 of file UrlHandler.h.

Member Function Documentation

◆ canHandle()

bool ClipAlphaHandler::canHandle ( const char *  method,
const char *  url 
)
overridevirtual

Implements UrlHandler.

Definition at line 18 of file ClipAlphaHandler.cpp.

18 {
19 static const char* kBasePath = "/clipAlpha/";
20 return 0 == strcmp(method, MHD_HTTP_METHOD_POST) &&
21 0 == strncmp(url, kBasePath, strlen(kBasePath));
22}

◆ handle()

int ClipAlphaHandler::handle ( Request request,
MHD_Connection *  connection,
const char *  url,
const char *  method,
const char *  upload_data,
size_t *  upload_data_size 
)
overridevirtual

Implements UrlHandler.

Definition at line 24 of file ClipAlphaHandler.cpp.

26 {
28 SkStrSplit(url, "/", &commands);
29
30 if (!request->hasPicture() || commands.size() != 2) {
31 return MHD_NO;
32 }
33
34 int alpha;
35 sscanf(commands[1].c_str(), "%d", &alpha);
36
37 request->fDebugCanvas->setClipVizColor(SkColorSetARGB(alpha, 0, 0, 0));
38 return SendOK(connection);
39}
static constexpr SkColor SkColorSetARGB(U8CPU a, U8CPU r, U8CPU g, U8CPU b)
Definition: SkColor.h:49
void SkStrSplit(const char *str, const char *delimiters, SkStrSplitMode splitMode, TArray< SkString > *out)
int SendOK(MHD_Connection *connection)
Definition: Response.cpp:44
dictionary commands
Definition: dom.py:171

The documentation for this class was generated from the following files: