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Update ImageDraw*() functions to match arguments of Draw*() (#1156)

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* Update ImageDraw*() functions to match arguments of Draw*()

Updated draw functions:
ImageDrawPixel()
ImageDrawPixelV()
ImageDrawCircle()
ImageDrawCircleV()
ImageDrawLine()
ImageDrawLineV()
ImageDrawRectangle()
ImageDrawRectangleV()
ImageDrawRectangleRec()

* [nodepadpp] Update Notepad++ ImageDraw defintions

This updates the Notepad++ definitions with the updated ImageDraw methods.

* [examples] Add ImageDraw calls to textures_image_drawing

* Update ImageDraw*() methods
This commit is contained in:
Rob Loach
2020-03-29 06:43:34 -04:00
committed by GitHub
parent 3c3dfde3f9
commit a025636fa1
5 changed files with 151 additions and 31 deletions
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81
src/textures.c
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@@ -1987,7 +1987,19 @@ Image ImageTextEx(Font font, const char *text, float fontSize, float spacing, Co
}
// Draw rectangle within an image
void ImageDrawRectangle(Image *dst, Rectangle rec, Color color)
void ImageDrawRectangle(Image *dst, int posX, int posY, int width, int height, Color color)
{
ImageDrawRectangleRec(dst, (Rectangle){ posX, posY, width, height }, color);
}
// Draw rectangle within an image (Vector version)
void ImageDrawRectangleV(Image *dst, Vector2 position, Vector2 size, Color color)
{
ImageDrawRectangle(dst, position.x, position.y, size.x, size.y, color);
}
// Draw rectangle within an image
void ImageDrawRectangleRec(Image *dst, Rectangle rec, Color color)
{
// Security check to avoid program crash
if ((dst->data == NULL) || (dst->width == 0) || (dst->height == 0)) return;
@@ -2000,40 +2012,46 @@ void ImageDrawRectangle(Image *dst, Rectangle rec, Color color)
// Draw rectangle lines within an image
void ImageDrawRectangleLines(Image *dst, Rectangle rec, int thick, Color color)
{
ImageDrawRectangle(dst, (Rectangle){ rec.x, rec.y, rec.width, thick }, color);
ImageDrawRectangle(dst, (Rectangle){ rec.x, rec.y + thick, thick, rec.height - thick*2 }, color);
ImageDrawRectangle(dst, (Rectangle){ rec.x + rec.width - thick, rec.y + thick, thick, rec.height - thick*2 }, color);
ImageDrawRectangle(dst, (Rectangle){ rec.x, rec.y + rec.height - thick, rec.width, thick }, color);
ImageDrawRectangle(dst, rec.x, rec.y, rec.width, thick, color);
ImageDrawRectangle(dst, rec.x, rec.y + thick, thick, rec.height - thick*2, color);
ImageDrawRectangle(dst, rec.x + rec.width - thick, rec.y + thick, thick, rec.height - thick*2, color);
ImageDrawRectangle(dst, rec.x, rec.y + rec.height - thick, rec.width, thick, color);
}
// Clear image background with given color
void ImageClearBackground(Image *dst, Color color)
{
ImageDrawRectangle(dst, (Rectangle){ 0.0f, 0.0f, dst->width, dst->height }, color);
ImageDrawRectangle(dst, 0, 0, dst->width, dst->height, color);
}
// Draw pixel within an image
void ImageDrawPixel(Image *dst, Vector2 position, Color color)
void ImageDrawPixel(Image *dst, int x, int y, Color color)
{
ImageDrawRectangle(dst, (Rectangle){ position.x, position.y, 1.0f, 1.0f }, color);
ImageDrawRectangle(dst, x, y, 1, 1, color);
}
// Draw pixel within an image (Vector version)
void ImageDrawPixelV(Image *dst, Vector2 position, Color color)
{
ImageDrawRectangle(dst, (int)position.x, (int)position.y, 1, 1, color);
}
// Draw circle within an image
void ImageDrawCircle(Image *dst, Vector2 center, int radius, Color color)
void ImageDrawCircle(Image *dst, int centerX, int centerY, int radius, Color color)
{
int x = 0, y = radius, xc = (int)center.x, yc = (int)center.y;
int x = 0, y = radius;
int decesionParameter = 3 - 2*radius;
while (y >= x)
{
ImageDrawPixel(dst, (Vector2){ xc + x, yc + y }, color);
ImageDrawPixel(dst, (Vector2){ xc - x, yc + y }, color);
ImageDrawPixel(dst, (Vector2){ xc + x, yc - y }, color);
ImageDrawPixel(dst, (Vector2){ xc - x, yc - y }, color);
ImageDrawPixel(dst, (Vector2){ xc + y, yc + x }, color);
ImageDrawPixel(dst, (Vector2){ xc - y, yc + x }, color);
ImageDrawPixel(dst, (Vector2){ xc + y, yc - x }, color);
ImageDrawPixel(dst, (Vector2){ xc - y, yc - x }, color);
ImageDrawPixel(dst, centerX + x, centerY + y, color);
ImageDrawPixel(dst, centerX - x, centerY + y, color);
ImageDrawPixel(dst, centerX + x, centerY - y, color);
ImageDrawPixel(dst, centerX - x, centerY - y, color);
ImageDrawPixel(dst, centerX + y, centerY + x, color);
ImageDrawPixel(dst, centerX - y, centerY + x, color);
ImageDrawPixel(dst, centerX + y, centerY - x, color);
ImageDrawPixel(dst, centerX - y, centerY - x, color);
x++;
if (decesionParameter > 0)
@@ -2045,26 +2063,37 @@ void ImageDrawCircle(Image *dst, Vector2 center, int radius, Color color)
}
}
// Draw line within an image
void ImageDrawLineEx(Image *dst, Vector2 start, Vector2 end, Color color)
// Draw circle within an image (Vector version)
void ImageDrawCircleV(Image *dst, Vector2 center, int radius, Color color)
{
int x1 = (int)start.x, y1 = (int)start.y, x2 = (int)end.x, y2 = (int)end.y;
int m = 2*(y2 - y1);
int slopeError = m - (x2 - x1);
ImageDrawCircle(dst, (int)center.x, (int)center.y, radius, color);
}
for (int x = x1, y = y1; x <= x2; x++)
// Draw line within an image
void ImageDrawLine(Image *dst, int startPosX, int startPosY, int endPosX, int endPosY, Color color)
{
int m = 2*(endPosY - startPosY);
int slopeError = m - (startPosY - startPosX);
for (int x = startPosX, y = startPosY; x <= startPosY; x++)
{
ImageDrawPixel(dst, (Vector2){ x, y }, color);
ImageDrawPixel(dst, x, y, color);
slopeError += m;
if (slopeError >= 0)
{
y++;
slopeError -= 2*(x2 - x1);
slopeError -= 2*(startPosY - startPosX);
}
}
}
// Draw line within an image (Vector version)
void ImageDrawLineV(Image *dst, Vector2 start, Vector2 end, Color color)
{
ImageDrawLine(dst, (int)start.x, (int)start.y, (int)end.x, (int)end.y, color);
}
// Draw text (default font) within an image (destination)
void ImageDrawText(Image *dst, Vector2 position, const char *text, int fontSize, Color color)
{