75 lines
1.9 KiB
Plaintext
75 lines
1.9 KiB
Plaintext
Monosize: Vector2;
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Vec2I :: struct {
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x: int;
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y: int;
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}
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MoveLeft :: proc(buffer: *Buffer, pos: int): int {
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pos -= 1;
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pos = AdjustUTF8Pos(buffer, pos, direction = -1);
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return pos;
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}
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MoveRight :: proc(buffer: *Buffer, pos: int): int {
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pos += 1;
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pos = AdjustUTF8Pos(buffer, pos, direction = +1);
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return pos;
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}
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CalculateVisualPos :: proc(buffer: *Buffer, pos: int): Vec2I {
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line: LineInfo = FindLineOfPos(buffer, pos);
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iter := Iterate(buffer, line.range.min, line.range.max);
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for IsValid(iter); Advance(&iter) {
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if iter.pos == pos {
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break;
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}
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}
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result: Vec2I = {iter.codepoint_index, line.number};
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return result;
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}
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CalculatePosFromVisualPos :: proc(buffer: *Buffer, vpos: Vec2I): int {
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line := GetLine(buffer, vpos.y);
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iter := Iterate(buffer, line.range.min, line.range.max);
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for IsValid(iter); Advance(&iter) {
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if iter.codepoint_index == vpos.x {
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break;
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}
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}
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return iter.pos;
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}
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CalculateWorldPosUnscrolled :: proc(vpos: Vec2I): Vector2 {
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result: Vector2 = {Monosize.x * :f32(vpos.x), Monosize.y * :f32(vpos.y)};
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return result;
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}
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CalculateWorldPos :: proc(scroll: Vector2, vpos: Vec2I): Vector2 {
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result: Vector2 = {Monosize.x * :f32(vpos.x) - scroll.x, Monosize.y * :f32(vpos.y) - scroll.y};
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return result;
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}
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MoveDown :: proc(buffer: *Buffer, pos: int): int {
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vpos := CalculateVisualPos(buffer, pos);
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if !IsLineValid(buffer, vpos.y + 1) return pos;
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result := CalculatePosFromVisualPos(buffer, {vpos.x, vpos.y + 1});
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return result;
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}
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MoveUp :: proc(buffer: *Buffer, pos: int): int {
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vpos := CalculateVisualPos(buffer, pos);
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if !IsLineValid(buffer, vpos.y - 1) return pos;
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result := CalculatePosFromVisualPos(buffer, {vpos.x, vpos.y - 1});
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return result;
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}
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DrawRect :: proc(rec: Rect2P, color: Color) {
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rectangle := Rect2PToRectangle(rec);
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DrawRectangleRec(rectangle, color);
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}
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