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Avoid memory leak...

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...by allocating style as a global array (on heap memory by default).

When trying to access guiStyle, if default style was not previously loaded, it loads automatically (RAII)
This commit is contained in:
Ray
2018-12-03 16:17:24 +01:00
parent 4c81641aba
commit 619eecd157
1 changed files with 82 additions and 87 deletions
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87
src/raygui.h
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@ -56,9 +56,6 @@
* internally in the library and input management and drawing functions must be provided by
* the user (check library implementation for further details).
*
* #define RAYGUI_STYLE_LOADING
* Include style loading functionality, useful to load custom styles.
*
* VERSIONS HISTORY:
* 2.0 (xx-Nov-2018) Complete review of new controls, redesigned style system
* 1.9 (01-May-2018) Lot of rework and redesign! Lots of new controls!
@ -358,12 +355,17 @@ RAYGUIDEF bool GuiListViewEx(Rectangle bounds, const char **text, int *enabledEl
RAYGUIDEF Color GuiColorPicker(Rectangle bounds, Color color); // Color Picker control
RAYGUIDEF bool GuiMessageBox(Rectangle bounds, const char *windowTitle, const char *message); // Message Box control, displays a message
#if defined(RAYGUI_STYLE_LOADING)
// Styles loading functions
RAYGUIDEF void GuiLoadStyle(const char *fileName); // Load style file (.rgs)
RAYGUIDEF void GuiLoadStyleProps(const int *props, int count); // Load style from a color palette array (14 values required)
RAYGUIDEF void GuiLoadStyleDefault(void); // Load style default over global style
RAYGUIDEF void GuiUpdateStyleComplete(void); // Updates full style properties set with default values
#endif
/*
typedef GuiStyle (unsigned int *)
RAYGUIDEF GuiStyle LoadGuiStyle(const char *fileName); // Load style from file (.rgs)
RAYGUIDEF void UnloadGuiStyle(GuiStyle style); // Unload style
*/
#endif // RAYGUI_H
@ -398,10 +400,17 @@ RAYGUIDEF void GuiUpdateStyleComplete(void); // Updates full
// Global Variables Definition
//----------------------------------------------------------------------------------
static GuiControlState guiState = GUI_STATE_NORMAL;
static unsigned int *guiStyle = NULL;
static Font guiFont = { 0 }; // NOTE: Highly coupled to raylib
static bool guiLocked = false;
static float guiAlpha = 1.0f;
static Font guiFont = { 0 }; // NOTE: Highly coupled to raylib
// Global gui style array (allocated on heap by default)
// NOTE: In raygui we manage a single int array with all the possible style properties.
// When a new style is loaded, it loads over the global style... but default gui style
// could always be recovered with GuiLoadStyleDefault()
static unsigned int guiStyle[NUM_CONTROLS*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED)] = { 0 };
static bool guiStyleLoaded = false;
//----------------------------------------------------------------------------------
// Standalone Mode Functions Declaration
@ -489,9 +498,6 @@ static int GuiTextWidth(const char *text)
return (int)size.x;
}
// Get default style, if not available load LIGHT style (RAII)
static unsigned int *GetStyleDefault(void);
//----------------------------------------------------------------------------------
// Module Functions Definition
//----------------------------------------------------------------------------------
@ -539,19 +545,15 @@ RAYGUIDEF void GuiFade(float alpha)
// Set control style property value
RAYGUIDEF void GuiSetStyle(int control, int property, int value)
{
// Get current style, initialized automatically if required (RAII)
unsigned int *style = GetStyleDefault();
style[control*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED) + property] = value;
if (!guiStyleLoaded) GuiLoadStyleDefault();
guiStyle[control*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED) + property] = value;
}
// Get control style property value
RAYGUIDEF int GuiGetStyle(int control, int property)
{
// Get current style, initialized automatically if required (RAII)
unsigned int *style = GetStyleDefault();
return style[control*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED) + property];
if (!guiStyleLoaded) GuiLoadStyleDefault();
return guiStyle[control*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED) + property];
}
// Window Box control
@ -2789,7 +2791,6 @@ RAYGUIDEF Vector2 GuiGrid(Rectangle bounds, int spacing, int subdivs)
return currentCell;
}
#if defined(RAYGUI_STYLE_LOADING)
// Load raygui style file (.rgs)
RAYGUIDEF void GuiLoadStyle(const char *fileName)
{
@ -2899,28 +2900,12 @@ RAYGUIDEF void GuiLoadStyleProps(const int *props, int count)
for (int k = 0; k < uncompleteSetProps; k++) GuiSetStyle(completeSets, k, props[completeSets*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED) + k]);
}
// Updates controls style with default values
RAYGUIDEF void GuiUpdateStyleComplete(void)
// Load style default over global style
RAYGUIDEF void GuiLoadStyleDefault(void)
{
// Populate all controls with default style
// NOTE: Extended style properties are ignored
for (int i = 1; i < NUM_CONTROLS; i++)
{
for (int j = 0; j < NUM_PROPS_DEFAULT; j++) GuiSetStyle(i, j, GuiGetStyle(DEFAULT, j));
}
}
#endif // defined(RAYGUI_STYLE_LOADING)
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
// Get default style, if not available load LIGHT style (RAII)
static unsigned int *GetStyleDefault(void)
{
if (guiStyle == NULL)
{
guiStyle = (unsigned int *)calloc(NUM_CONTROLS*(NUM_PROPS_DEFAULT + NUM_PROPS_EXTENDED), sizeof(unsigned int));
// We set this variable first to avoid cyclic function calls
// when calling GuiSetStyle() and GuiGetStyle()
guiStyleLoaded = true;
// Initialize default LIGHT style property values
GuiSetStyle(DEFAULT, BORDER_COLOR_NORMAL, 0x838383ff);
@ -2972,13 +2957,23 @@ static unsigned int *GetStyleDefault(void)
GuiSetStyle(LISTVIEW, ELEMENTS_HEIGHT, 0x1e);
GuiSetStyle(LISTVIEW, ELEMENTS_PADDING, 2);
GuiSetStyle(LISTVIEW, SCROLLBAR_WIDTH, 10);
// TODO: Allocated memory must be freed!
}
return guiStyle;
}
// Updates controls style with default values
RAYGUIDEF void GuiUpdateStyleComplete(void)
{
// Populate all controls with default style
// NOTE: Extended style properties are ignored
for (int i = 1; i < NUM_CONTROLS; i++)
{
for (int j = 0; j < NUM_PROPS_DEFAULT; j++) GuiSetStyle(i, j, GuiGetStyle(DEFAULT, j));
}
}
//----------------------------------------------------------------------------------
// Module specific Functions Definition
//----------------------------------------------------------------------------------
// Convert color data from RGB to HSV
// NOTE: Color data should be passed normalized
static Vector3 ConvertRGBtoHSV(Vector3 rgb)