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imgui_savestyle.cpp - some improvements

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- write code uses fewer/shorter string literals
- code generated by WriteImGuiStyleToCode() has nicer alignment
- small improvements in some comments
This commit is contained in:
Daniel Gibson 2024-05-26 01:23:30 +02:00
parent 894aa67a8f
commit 2a7683ebaa
1 changed files with 20 additions and 12 deletions
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32
neo/sys/imgui_savestyle.cpp
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@ -1,5 +1,6 @@
/*
* Functions to read/write a Dear ImGui style (ImGuiStyle) from/to a (ini-like) textfile.
* Functions to read/write a Dear ImGui style (ImGuiStyle) from/to a (ini-like)
* textfile, or generating C++ code for it.
*
* Hosted at https://github.com/DanielGibson/Snippets/
*
@ -47,12 +48,12 @@ namespace DG {
// and sets the given ImGuiStyle accordingly.
// if any attributes/colors/behaviors are missing the the file,
// they are not modified in style, so it probably makes sense to initialize
// style to a sane default before calling that function.
// style to a sane default before calling this function.
// returns true on success, false if opening the file failed
extern bool ReadImGuiStyle( ImGuiStyle& style, const char* filename );
// generate C++ code that replicates the given style into a text buffer
// (that you can either write to a file or set the clipboard from or whatever)
// (that you can write to a file or set the clipboard from or whatever)
extern ImGuiTextBuffer WriteImGuiStyleToCode( const ImGuiStyle& s );
} //namespace
#endif
@ -369,13 +370,13 @@ bool WriteImGuiStyle( const ImGuiStyle& s, const char* filename ) {
fprintf( f, "[style]\n" );
#define D3_IMATTR_FLOAT( NAME ) \
fprintf( f, #NAME " = %g\n", s . NAME );
fprintf( f, "%s = %g\n", #NAME, s . NAME );
#define D3_IMATTR_VEC2( NAME ) \
fprintf( f, #NAME " = %g, %g\n", s . NAME . x, s . NAME . y );
fprintf( f, "%s = %g, %g\n", #NAME, s . NAME . x, s . NAME . y );
#define D3_IMATTR_INT( NAME ) \
fprintf( f, #NAME " = %d\n", s . NAME );
fprintf( f, "%s = %d\n", #NAME, s . NAME );
#define D3_IMATTR_BOOL( NAME ) \
fprintf( f, #NAME " = %d\n", (int) ( s . NAME ) );
fprintf( f, "%s = %d\n", #NAME, (int)( s . NAME ) );
// this (together with the D3_IMATTR_* defines in the previous lines)
// expands the D3_IMSTYLE_ATTRS table to
@ -399,7 +400,7 @@ bool WriteImGuiStyle( const ImGuiStyle& s, const char* filename ) {
#define D3_IMSTYLE_COLOR( NAME ) { \
const ImVec4& c = s.Colors[ ImGuiCol_ ## NAME ]; \
fprintf( f, #NAME " = %g, %g, %g, %g\n", c.x, c.y, c.z, c.w ); \
fprintf( f, "%s = %g, %g, %g, %g\n", #NAME, c.x, c.y, c.z, c.w ); \
}
// this turns into
@ -417,6 +418,12 @@ bool WriteImGuiStyle( const ImGuiStyle& s, const char* filename ) {
return true;
}
static inline int numSpaces( const char* name, int targetLen )
{
int ret = targetLen - strlen(name);
return ret > 0 ? ret : 0;
}
ImGuiTextBuffer WriteImGuiStyleToCode( const ImGuiStyle& s )
{
ImGuiTextBuffer ret;
@ -424,13 +431,13 @@ ImGuiTextBuffer WriteImGuiStyleToCode( const ImGuiStyle& s )
ret.append( "ImGuiStyle& style = ImGui::GetStyle();\n" );
#define D3_IMATTR_FLOAT( NAME ) \
ret.appendf( "style.%s = %g;\n", #NAME, s. NAME );
ret.appendf( "style.%s %*s= %g;\n", #NAME, numSpaces( #NAME , 27 ), "", s. NAME );
#define D3_IMATTR_VEC2( NAME ) \
ret.appendf( "style.%s = ImVec2( %g, %g );\n", #NAME, s. NAME .x, s. NAME .y );
ret.appendf( "style.%s %*s= ImVec2( %g, %g );\n", #NAME, numSpaces( #NAME , 27 ), "", s. NAME .x, s. NAME .y );
#define D3_IMATTR_INT( NAME ) \
ret.appendf( "style.%s = %d; // TODO: flag\n", #NAME, s. NAME );
#define D3_IMATTR_BOOL( NAME ) \
ret.appendf( "style.%s = %s;\n", #NAME, s. NAME ? "true" : "false" );
ret.appendf( "style.%s %*s= %s;\n", #NAME, numSpaces( #NAME , 27 ), "", s. NAME ? "true" : "false" );
D3_IMSTYLE_ATTRS
@ -447,7 +454,8 @@ ImGuiTextBuffer WriteImGuiStyleToCode( const ImGuiStyle& s )
#define D3_IMSTYLE_COLOR( NAME ) { \
const ImVec4& c = s.Colors[ ImGuiCol_ ## NAME ]; \
ret.appendf( "colors[ ImGuiCol_%s ] = ImVec4( %g, %g, %g, %g );\n", #NAME, c.x, c.y, c.z, c.w ); \
ret.appendf( "colors[ ImGuiCol_%s ]%*s = ImVec4( %g, %g, %g, %g );\n", #NAME, \
numSpaces( #NAME , 21 ), "", c.x, c.y, c.z, c.w ); \
}
D3_IMSTYLE_COLORS