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page up and down scroll the editor
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commit
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@ -22,12 +22,18 @@ var (
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// TODO: allow font setting or whatever
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type camera struct {
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x int
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y int
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}
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type Buffer struct {
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BaseComponent
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font *strife.Font
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contents []*rope.Rope
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curs *Cursor
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cfg *cfg.TomlConfig
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cam *camera
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filePath string
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}
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@ -43,6 +49,7 @@ func NewBuffer(conf *cfg.TomlConfig) *Buffer {
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curs: &Cursor{},
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cfg: config,
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filePath: "/tmp/phi_file_" + time.Now().String(), // TODO make this a randomly chosen temp file
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cam: &camera{0, 0},
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}
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buff.OpenFile(cfg.CONFIG_FULL_PATH)
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@ -277,6 +284,39 @@ func (b *Buffer) moveRight() {
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}
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}
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func (b *Buffer) moveUp() {
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if b.curs.x > 0 {
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b.curs.move(0, -1)
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}
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}
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func (b *Buffer) moveDown() {
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if b.curs.x < len(b.contents) {
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b.curs.move(0, 1)
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}
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}
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func (b *Buffer) scrollUp() {
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// TODO move the cursor down 45 lines
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// IF the buffer exceeds the window size.
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lineScrollAmount := 10
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b.cam.y -= lineScrollAmount * last_h
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for i := 0; i < lineScrollAmount; i++ {
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b.moveUp()
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}
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}
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func (b *Buffer) scrollDown() {
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// TODO move the cursor down 45 lines
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// IF the buffer exceeds the window size.
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lineScrollAmount := 10
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b.cam.y += lineScrollAmount * last_h
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for i := 0; i < lineScrollAmount; i++ {
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b.moveDown()
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}
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}
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// processes a key press. returns if there
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// was a key that MODIFIED the buffer.
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func (b *Buffer) processActionKey(key int) bool {
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@ -471,6 +511,14 @@ func (b *Buffer) processActionKey(key int) bool {
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}
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return true
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case sdl.K_PAGEUP:
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b.scrollUp()
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return true
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case sdl.K_PAGEDOWN:
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b.scrollDown()
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return true
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case sdl.K_DELETE:
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b.deleteNext()
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return true
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@ -569,14 +617,14 @@ func (b *Buffer) OnUpdate() bool {
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var last_w, last_h int
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var lineIndex int = 0
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func (b *Buffer) OnRender(ctx *strife.Renderer) {
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func (b *Buffer) renderAt(ctx *strife.Renderer, rx int, ry int) {
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// BACKGROUND
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ctx.SetColor(strife.HexRGB(b.cfg.Theme.Background))
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ctx.Rect(b.x, b.y, b.w, b.h, strife.Fill)
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ctx.Rect(rx, ry, b.w, b.h, strife.Fill)
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if b.cfg.Editor.Highlight_Line {
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ctx.SetColor(strife.Black) // highlight_line_col?
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ctx.Rect(b.x, b.y+b.curs.ry*last_h, b.w, last_h, strife.Fill)
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ctx.Rect(rx, (ry + b.curs.ry*last_h), b.w, last_h, strife.Fill)
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}
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// render the ol' cursor
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@ -587,7 +635,7 @@ func (b *Buffer) OnRender(ctx *strife.Renderer) {
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}
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ctx.SetColor(strife.HexRGB(b.cfg.Theme.Cursor)) // caret colour
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ctx.Rect(b.x+b.curs.rx*last_w, b.y+b.curs.ry*last_h, cursorWidth, last_h, strife.Fill)
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ctx.Rect((rx + b.curs.rx*last_w), (ry + b.curs.ry*last_h), cursorWidth, last_h, strife.Fill)
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}
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source := b.contents
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@ -644,10 +692,13 @@ func (b *Buffer) OnRender(ctx *strife.Renderer) {
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ctx.SetColor(strife.HexRGB(b.cfg.Theme.Cursor_Invert))
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}
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last_w, last_h = ctx.String(string(char), b.x+((x_col-1)*last_w), b.y+(y_col*last_h))
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last_w, last_h = ctx.String(string(char), (rx + ((x_col - 1) * last_w)), (ry + (y_col * last_h)))
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}
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y_col += 1
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}
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}
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func (b *Buffer) OnRender(ctx *strife.Renderer) {
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b.renderAt(ctx, b.x-b.cam.x, b.y-b.cam.y)
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}
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