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Add various Rect constructors

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This commit is contained in:
Dmitry Marakasov 2014-12-30 00:13:27 +03:00
parent a5d558b1c1
commit 837772dac0
2 changed files with 57 additions and 0 deletions
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19
SDL2pp/Rect.cc
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@ -39,6 +39,13 @@ Rect::Rect(const SDL_Rect& rect) {
h = rect.h;
}
Rect::Rect(const Point& corner, const Point& size) {
x = corner.x;
y = corner.y;
w = size.x;
h = size.y;
}
Rect::Rect(int nx, int ny, int nw, int nh) {
x = nx;
y = ny;
@ -71,6 +78,18 @@ Rect Rect::FromCenter(int cx, int cy, int w, int h) {
return Rect(cx - w/2, cy - h/2, w, h);
}
Rect Rect::FromCenter(const Point& center, const Point& size) {
return Rect(center - size / 2, size);
}
Rect Rect::FromCorners(int x1, int y1, int x2, int y2) {
return Rect(x1, y1, x2 - x1 + 1, y2 - y1 + 1);
}
Rect Rect::FromCorners(const Point& p1, const Point& p2) {
return Rect(p1, p2 - p1 + Point(1, 1));
}
bool Rect::IsNull() const {
return false;
}

38
SDL2pp/Rect.hh
View File

@ -66,6 +66,15 @@ public:
////////////////////////////////////////////////////////////
Rect(const SDL_Rect& rect);
////////////////////////////////////////////////////////////
/// \brief Construct the rect from given corner coordinates, and size
///
/// \param corner Coordinates of the top left rectangle corner
/// \param size Dimensions of the rectangle
///
////////////////////////////////////////////////////////////
Rect(const Point& corner, const Point& size);
////////////////////////////////////////////////////////////
/// \brief Construct the rect from given corner coordinates, width and height
///
@ -90,6 +99,35 @@ public:
////////////////////////////////////////////////////////////
static Rect FromCenter(int cx, int cy, int w, int h);
////////////////////////////////////////////////////////////
/// \brief Construct the rect from given center coordinates and size
///
/// \param center Coordinates of the rectangle center
/// \param size Dimensions of the rectangle
///
////////////////////////////////////////////////////////////
static Rect FromCenter(const Point& center, const Point& size);
////////////////////////////////////////////////////////////
/// \brief Construct the rect from given center coordinates, width and height
///
/// \param x1 X coordinate of the top left rectangle corner
/// \param y1 Y coordinate of the top left rectangle corner
/// \param x2 X coordinate of the bottom right rectangle corner
/// \param y2 Y coordinate of the bottom right rectangle corner
///
////////////////////////////////////////////////////////////
static Rect FromCorners(int x1, int y1, int x2, int y2);
////////////////////////////////////////////////////////////
/// \brief Construct the rect from given center coordinates and size
///
/// \param p1 Coordinates of the top left rectangle corner
/// \param p2 Coordinates of the bottom right rectangle corner
///
////////////////////////////////////////////////////////////
static Rect FromCorners(const Point& p1, const Point& p2);
////////////////////////////////////////////////////////////
/// \brief Copy constructor
///