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ADDED: SplitText() function

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Ray
2018-10-23 15:43:19 +02:00
parent b5bcf2c934
commit 550dd40cb3
2 changed files with 93 additions and 54 deletions
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7
src/raylib.h
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@@ -1088,10 +1088,13 @@ RLAPI void DrawTextEx(Font font, const char *text, Vector2 position, float fontS
// Text misc. functions
RLAPI int MeasureText(const char *text, int fontSize); // Measure string width for default font
RLAPI Vector2 MeasureTextEx(Font font, const char *text, float fontSize, float spacing); // Measure string size for Font
RLAPI const char *FormatText(const char *text, ...); // Formatting of text with variables to 'embed'
RLAPI const char *SubText(const char *text, int position, int length); // Get a piece of a text string
RLAPI int GetGlyphIndex(Font font, int character); // Get index position for a unicode character on font
// Text string edition functions
RLAPI const char *FormatText(const char *text, ...); // Formatting of text with variables to 'embed'
RLAPI const char *SubText(const char *text, int position, int length); // Get a piece of a text string
RLAPI char **SplitText(char *text, char delimiter, int *strCount); // Split text string into multiple strings (memory should be freed manually!)
//------------------------------------------------------------------------------------
// Basic 3d Shapes Drawing Functions (Module: models)
//------------------------------------------------------------------------------------

140
src/text.c
View File

@@ -566,6 +566,28 @@ void UnloadFont(Font font)
}
}
// Shows current FPS on top-left corner
// NOTE: Uses default font
void DrawFPS(int posX, int posY)
{
// NOTE: We are rendering fps every second for better viewing on high framerates
static int fps = 0;
static int counter = 0;
static int refreshRate = 20;
if (counter < refreshRate) counter++;
else
{
fps = GetFPS();
refreshRate = fps;
counter = 0;
}
// NOTE: We have rounding errors every frame, so it oscillates a lot
DrawText(FormatText("%2i FPS", fps), posX, posY, 20, LIME);
}
// Draw text (using default font)
// NOTE: fontSize work like in any drawing program but if fontSize is lower than font-base-size, then font-base-size is used
// NOTE: chars spacing is proportional to fontSize
@@ -642,44 +664,6 @@ void DrawTextEx(Font font, const char *text, Vector2 position, float fontSize, f
}
}
// Formatting of text with variables to 'embed'
const char *FormatText(const char *text, ...)
{
static char buffer[MAX_FORMATTEXT_LENGTH];
va_list args;
va_start(args, text);
vsprintf(buffer, text, args);
va_end(args);
return buffer;
}
// Get a piece of a text string
const char *SubText(const char *text, int position, int length)
{
static char buffer[MAX_SUBTEXT_LENGTH] = { 0 };
int textLength = strlen(text);
if (position >= textLength)
{
position = textLength - 1;
length = 0;
}
if (length >= textLength) length = textLength;
for (int c = 0 ; c < length ; c++)
{
*(buffer + c) = *(text + position);
text++;
}
*(buffer + length) = '\0';
return buffer;
}
// Measure string width for default font
int MeasureText(const char *text, int fontSize)
{
@@ -764,26 +748,78 @@ int GetGlyphIndex(Font font, int character)
#endif
}
// Shows current FPS on top-left corner
// NOTE: Uses default font
void DrawFPS(int posX, int posY)
// Formatting of text with variables to 'embed'
const char *FormatText(const char *text, ...)
{
// NOTE: We are rendering fps every second for better viewing on high framerates
static char buffer[MAX_FORMATTEXT_LENGTH];
static int fps = 0;
static int counter = 0;
static int refreshRate = 20;
va_list args;
va_start(args, text);
vsprintf(buffer, text, args);
va_end(args);
if (counter < refreshRate) counter++;
else
return buffer;
}
// Get a piece of a text string
const char *SubText(const char *text, int position, int length)
{
static char buffer[MAX_SUBTEXT_LENGTH] = { 0 };
int textLength = strlen(text);
if (position >= textLength)
{
fps = GetFPS();
refreshRate = fps;
counter = 0;
position = textLength - 1;
length = 0;
}
if (length >= textLength) length = textLength;
for (int c = 0 ; c < length ; c++)
{
*(buffer + c) = *(text + position);
text++;
}
*(buffer + length) = '\0';
return buffer;
}
// Split string into multiple strings
// NOTE: Files count is returned by parameters pointer
// NOTE: Allocated memory should be manually freed
char **SplitText(char *text, char delimiter, int *strCount)
{
#define MAX_SUBSTRING_LENGTH 128
char **strings = NULL;
int len = strlen(text);
char *strDup = (char *)malloc(len + 1);
strcpy(strDup, text);
int counter = 1;
// Count how many substrings we have on string
for (int i = 0; i < len; i++) if (text[i] == delimiter) counter++;
// Memory allocation for substrings
strings = (char **)malloc(sizeof(char *)*counter);
for (int i = 0; i < counter; i++) strings[i] = (char *)malloc(sizeof(char)*MAX_SUBSTRING_LENGTH);
char *substrPtr = NULL;
char delimiters[1] = { delimiter }; // Only caring for one delimiter
substrPtr = strtok(strDup, delimiters);
for (int i = 0; (i < counter) && (substrPtr != NULL); i++)
{
strcpy(strings[i], substrPtr);
substrPtr = strtok(NULL, delimiters);
}
// NOTE: We have rounding errors every frame, so it oscillates a lot
DrawText(FormatText("%2i FPS", fps), posX, posY, 20, LIME);
*strCount = counter;
free(strDup);
return strings;
}
//----------------------------------------------------------------------------------