Forgot to add math int

src/text_editor/math_int.cpp

@@ -0,0 +1,136 @@
+struct Vec2I {
+    Int x;
+    Int y;
+};
+
+struct Rect2I {
+    Vec2I min;
+    Vec2I max;
+};
+
+Vec2I GetSize(Rect2I r) {
+    Vec2I result = {r.max.x - r.min.x, r.max.y - r.min.y};
+    return result;
+}
+
+// clang-format off
+Rect2I operator-(Rect2I r, Rect2I value) { return { r.min.x - value.min.x, r.min.y - value.min.y, r.max.x - value.max.x, r.max.y - value.max.y }; }
+Rect2I operator+(Rect2I r, Rect2I value) { return { r.min.x + value.min.x, r.min.y + value.min.y, r.max.x + value.max.x, r.max.y + value.max.y }; }
+Rect2I operator*(Rect2I r, Rect2I value) { return { r.min.x * value.min.x, r.min.y * value.min.y, r.max.x * value.max.x, r.max.y * value.max.y }; }
+Rect2I operator/(Rect2I r, Rect2I value) { return { r.min.x / value.min.x, r.min.y / value.min.y, r.max.x / value.max.x, r.max.y / value.max.y }; }
+
+Rect2I operator-(Rect2I r, Vec2I value) { return { r.min.x - value.x, r.min.y - value.y, r.max.x - value.x, r.max.y - value.y }; }
+Rect2I operator+(Rect2I r, Vec2I value) { return { r.min.x + value.x, r.min.y + value.y, r.max.x + value.x, r.max.y + value.y }; }
+Rect2I operator*(Rect2I r, Vec2I value) { return { r.min.x * value.x, r.min.y * value.y, r.max.x * value.x, r.max.y * value.y }; }
+Rect2I operator/(Rect2I r, Vec2I value) { return { r.min.x / value.x, r.min.y / value.y, r.max.x / value.x, r.max.y / value.y }; }
+
+Rect2I operator-(Rect2I r, Int value) { return { r.min.x - value, r.min.y - value, r.max.x - value, r.max.y - value }; }
+Rect2I operator+(Rect2I r, Int value) { return { r.min.x + value, r.min.y + value, r.max.x + value, r.max.y + value }; }
+Rect2I operator*(Rect2I r, Int value) { return { r.min.x * value, r.min.y * value, r.max.x * value, r.max.y * value }; }
+Rect2I operator/(Rect2I r, Int value) { return { r.min.x / value, r.min.y / value, r.max.x / value, r.max.y / value }; }
+
+Rect2I operator-=(Rect2I &r, Rect2I value) { r = r - value; return r; }
+Rect2I operator+=(Rect2I &r, Rect2I value) { r = r + value; return r; }
+Rect2I operator*=(Rect2I &r, Rect2I value) { r = r * value; return r; }
+Rect2I operator/=(Rect2I &r, Rect2I value) { r = r / value; return r; }
+Rect2I operator-=(Rect2I &r, Vec2I value) { r = r - value; return r; }
+Rect2I operator+=(Rect2I &r, Vec2I value) { r = r + value; return r; }
+Rect2I operator*=(Rect2I &r, Vec2I value) { r = r * value; return r; }
+Rect2I operator/=(Rect2I &r, Vec2I value) { r = r / value; return r; }
+Rect2I operator-=(Rect2I &r, Int value) { r = r - value; return r; }
+Rect2I operator+=(Rect2I &r, Int value) { r = r + value; return r; }
+Rect2I operator*=(Rect2I &r, Int value) { r = r * value; return r; }
+Rect2I operator/=(Rect2I &r, Int value) { r = r / value; return r; }
+
+Vec2I operator-(Vec2I a, Vec2I b) { return {a.x - b.x, a.y - b.y}; }
+Vec2I operator+(Vec2I a, Vec2I b) { return {a.x + b.x, a.y + b.y}; }
+Vec2I operator*(Vec2I a, Vec2I b) { return {a.x * b.x, a.y * b.y}; }
+Vec2I operator/(Vec2I a, Vec2I b) { return {a.x / b.x, a.y / b.y}; }
+
+Vec2I operator-(Vec2I a, Int b) { return {a.x - b, a.y - b}; }
+Vec2I operator+(Vec2I a, Int b) { return {a.x + b, a.y + b}; }
+Vec2I operator*(Vec2I a, Int b) { return {a.x * b, a.y * b}; }
+Vec2I operator/(Vec2I a, Int b) { return {a.x / b, a.y / b}; }
+
+Vec2I operator-=(Vec2I &a, Vec2I b) { a = a - b; return a; }
+Vec2I operator+=(Vec2I &a, Vec2I b) { a = a + b; return a; }
+Vec2I operator*=(Vec2I &a, Vec2I b) { a = a * b; return a; }
+Vec2I operator/=(Vec2I &a, Vec2I b) { a = a / b; return a; }
+Vec2I operator-=(Vec2I &a, Int b) { a = a - b; return a; }
+Vec2I operator+=(Vec2I &a, Int b) { a = a + b; return a; }
+Vec2I operator*=(Vec2I &a, Int b) { a = a * b; return a; }
+Vec2I operator/=(Vec2I &a, Int b) { a = a / b; return a; }
+
+// clang-format on
+
+Rect2I Rect2IFromSize(Vec2I pos, Vec2I size) {
+    Rect2I result = {};
+    result.min    = pos;
+    result.max    = pos + size;
+    return result;
+}
+
+Rect2I Shrink(Rect2I result, Int v) {
+    result.min.x += v;
+    result.max.x -= v;
+    result.min.y += v;
+    result.max.y -= v;
+    return result;
+}
+
+Vec2I GetMid(Rect2I r) {
+    Vec2I size = GetSize(r);
+    size.x /= 2;
+    size.y /= 2;
+    Vec2I result = r.min + size;
+    return result;
+}
+
+Rect2I CutLeft(Rect2I *r, Int value) {
+    Int minx      = r->min.x;
+    r->min.x      = Min(r->min.x + value, r->max.x);
+    Rect2I result = {
+        {    minx, r->min.y},
+        {r->min.x, r->max.y}
+    };
+    return result;
+}
+
+Rect2I CutRight(Rect2I *r, Int value) {
+    Int maxx      = r->max.x;
+    r->max.x      = Max(r->min.x, r->max.x - value);
+    Rect2I result = {
+        {r->max.x, r->min.y},
+        {    maxx, r->max.y},
+    };
+    return result;
+}
+
+// Y is up
+Rect2I CutBottom(Rect2I *r, Int value) {
+    Int maxy      = r->max.y;
+    r->max.y      = Max(r->min.y, r->max.y - value);
+    Rect2I result = {
+        {r->min.x, r->max.y},
+        {r->max.x,     maxy},
+    };
+    return result;
+}
+
+// Y is up
+Rect2I CutTop(Rect2I *r, Int value) {
+    Int miny      = r->min.y;
+    r->min.y      = Min(r->min.y + value, r->max.y);
+    Rect2I result = {
+        {r->min.x,     miny},
+        {r->max.x, r->min.y},
+    };
+    return result;
+}
+
+Int SafeDivide(Int a, Int b) {
+    if (b == 0) {
+        return 0;
+    }
+    return a / b;
+}