Use a buffer system for building the panes
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72d7cc8280
commit
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@ -6,7 +6,7 @@ import (
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"strings"
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"time"
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"github.com/br0xen/termbox-util"
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termboxUtil "github.com/br0xen/termbox-util"
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"github.com/nsf/termbox-go"
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)
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@ -37,9 +37,6 @@ type BrowserScreen struct {
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messageTimeout time.Duration
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messageTime time.Time
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rightPaneHeight int
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rightPaneCursor int
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leftPaneBuffer []Line
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rightPaneBuffer []Line
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}
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@ -544,11 +541,14 @@ func (screen *BrowserScreen) buildLeftPane(style Style) {
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if len(screen.currentPath) == 0 {
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screen.currentPath = screen.db.getNextVisiblePath(nil)
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}
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curPathSpot := 0
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visPaths, err := screen.db.buildVisiblePathSlice()
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if err == nil {
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for idx, pth := range visPaths {
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screen.leftPaneBuffer
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for i := range screen.db.buckets {
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screen.leftPaneBuffer = append(screen.leftPaneBuffer, screen.bucketToLines(&screen.db.buckets[i], style)...)
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}
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// Find the cursor in the leftPane
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for k, v := range screen.leftPaneBuffer {
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if v.Fg == style.cursorFg {
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screen.leftViewPort.scrollRow = k
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break
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}
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}
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}
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@ -562,19 +562,18 @@ func (screen *BrowserScreen) drawLeftPane(style Style) {
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screen.leftViewPort.bytesPerRow = w
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screen.leftViewPort.numberOfRows = h - 2
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termboxUtil.FillWithChar('=', 0, 1, w, 1, style.defaultFg, style.defaultBg)
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y := 2
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screen.leftViewPort.firstRow = y
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startX, startY := 0, 3
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screen.leftViewPort.firstRow = startY
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treeOffset := 0
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maxCursor := screen.leftViewPort.numberOfRows * 2 / 3
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if curPathSpot > maxCursor {
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treeOffset = curPathSpot - maxCursor
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}
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for i := range screen.db.buckets {
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// The drawBucket function returns how many lines it took up
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bktH := screen.drawBucket(&screen.db.buckets[i], style, (y - treeOffset))
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y += bktH
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if screen.leftViewPort.scrollRow > maxCursor {
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treeOffset = screen.leftViewPort.scrollRow - maxCursor
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}
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if len(screen.leftPaneBuffer) > 0 {
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for k, v := range screen.leftPaneBuffer[treeOffset:] {
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termboxUtil.DrawStringAtPoint(v.Text, startX, (startY + k - 1), v.Fg, v.Bg)
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}
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}
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}
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@ -626,10 +625,10 @@ func (screen *BrowserScreen) drawRightPane(style Style) {
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termboxUtil.FillWithChar('=', 0, 1, w, 1, style.defaultFg, style.defaultBg)
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termboxUtil.FillWithChar('|', (w / 2), screen.rightViewPort.firstRow-1, (w / 2), h, style.defaultFg, style.defaultBg)
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// Clear the right pane
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termboxUtil.FillWithChar(' ', (w/2)+1, screen.rightViewPort.firstRow, w, h, style.defaultFg, style.defaultBg)
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termboxUtil.FillWithChar(' ', (w/2)+1, screen.rightViewPort.firstRow+2, w, h, style.defaultFg, style.defaultBg)
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startX := (w / 2) + 2
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startY := 2
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startY := 3
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maxScroll := len(screen.rightPaneBuffer) - screen.rightViewPort.numberOfRows
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if maxScroll < 0 {
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maxScroll = 0
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@ -667,105 +666,31 @@ func formatValueJSON(val []byte) ([]byte, error) {
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return out, nil
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}
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func (screen *BrowserScreen) bucketToStrings(bkt *BoltBucket, style Style) []string {
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}
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/* drawBucket
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* @bkt *BoltBucket - The bucket to draw
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* @style Style - The style to use
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* @w int - The Width of the lines
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* @y int - The Y position to start drawing
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* return - The number of lines used
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*/
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func (screen *BrowserScreen) drawBucket(bkt *BoltBucket, style Style, y int) int {
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w, _ := termbox.Size()
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if w > 80 {
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w = w / 2
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}
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usedLines := 0
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bucketFg := style.defaultFg
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bucketBg := style.defaultBg
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func (screen *BrowserScreen) bucketToLines(bkt *BoltBucket, style Style) []Line {
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var ret []Line
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bfg, bbg := style.defaultFg, style.defaultBg
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if comparePaths(screen.currentPath, bkt.GetPath()) {
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bucketFg = style.cursorFg
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bucketBg = style.cursorBg
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bfg, bbg = style.cursorFg, style.cursorBg
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}
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prefixSpaces := strings.Repeat(" ", len(bkt.GetPath())*2)
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bktString := prefixSpaces
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prefixSpaces = prefixSpaces + " "
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padAmt := (len(bkt.GetPath())*2 + 2)
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bktPrefix := strings.Repeat(" ", len(bkt.GetPath())*2)
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if bkt.expanded {
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bktString = bktString + "- " + stringify([]byte(bkt.name))
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if len(bktString)+padAmt > w {
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bktString = bktString[:w-padAmt-3] + "..."
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}
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usedLines = screen.drawMultilineText(bktString, (len(bkt.GetPath())*2 + 2), 0, y, (w - 1), bucketFg, bucketBg)
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ret = append(ret, Line{bktPrefix + "- " + stringify([]byte(bkt.name)), bfg, bbg})
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for i := range bkt.buckets {
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usedLines += screen.drawBucket(&bkt.buckets[i], style, y+usedLines)
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ret = append(ret, screen.bucketToLines(&bkt.buckets[i], style)...)
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}
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for i := range bkt.pairs {
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usedLines += screen.drawPair(&bkt.pairs[i], style, y+usedLines)
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}
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} else {
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bktString = bktString + "+ " + stringify([]byte(bkt.name))
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if len(bktString)+padAmt > w {
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bktString = bktString[:w-padAmt-3] + "..."
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}
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usedLines = screen.drawMultilineText(bktString, (len(bkt.GetPath())*2 + 2), 0, y, (w - 1), bucketFg, bucketBg)
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}
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return usedLines
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}
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func (screen *BrowserScreen) drawPair(bp *BoltPair, style Style, y int) int {
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w, _ := termbox.Size()
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if w > 80 {
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w = w / 2
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}
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usedLines := 0
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bucketFg := style.defaultFg
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bucketBg := style.defaultBg
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for _, bp := range bkt.pairs {
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pfg, pbg := style.defaultFg, style.defaultBg
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if comparePaths(screen.currentPath, bp.GetPath()) {
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bucketFg = style.cursorFg
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bucketBg = style.cursorBg
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pfg, pbg = style.cursorFg, style.cursorBg
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}
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prefixSpaces := strings.Repeat(" ", len(bp.GetPath())*2)
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pairString := prefixSpaces
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pairString = fmt.Sprintf("%s%s: %s", pairString, stringify([]byte(bp.key)), stringify([]byte(bp.val)))
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if len(pairString) > w {
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}
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prefixSpaces = prefixSpaces + " "
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if len(pairString) > w {
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// The long pair strings are causing a problem, for now, truncate
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pairString = pairString[:w-3] + "..."
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}
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/* TODO: Re-enable this when I figure out the display issue
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// Long pair string, wrap it
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// We're going to try to wrap it at the :, if we can
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if len(bp.GetPath())*2+len(bp.key)+1 > w {
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// We can't... So just wrap it
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usedLines = screen.drawMultilineText(pairString, (len(bp.GetPath()) * 2), 0, y, (w - 1), style.defaultFg, style.defaultBg)
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} else {
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// That's convenient, wrap at the :
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pairString := strings.Repeat(" ", len(bp.GetPath())*2)
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pairString = fmt.Sprintf("%s%s:", pairString, bp.key)
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termboxUtil.DrawStringAtPoint(pairString, 0, y, bucketFg, bucketBg)
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usedLines++
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pairString = strings.Repeat(" ", len(bp.GetPath())*2+2) + bp.val
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usedLines += screen.drawMultilineText(pairString, (len(bp.GetPath())*2)+2, 0, y+1, (w - 1), bucketFg, bucketBg)
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prPrefix := strings.Repeat(" ", len(bp.GetPath())*2)
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pairString := fmt.Sprintf("%s%s: %s", prPrefix, stringify([]byte(bp.key)), stringify([]byte(bp.val)))
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ret = append(ret, Line{pairString, pfg, pbg})
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}
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} else {
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*/
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if w-len(pairString) > 0 {
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pairString = fmt.Sprintf("%s%s", pairString, strings.Repeat(" ", (w-len(pairString))))
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ret = append(ret, Line{bktPrefix + "+ " + stringify([]byte(bkt.name)), bfg, bbg})
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}
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termboxUtil.DrawStringAtPoint(pairString, 0, y, bucketFg, bucketBg)
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usedLines = 1
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// }
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return usedLines
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return ret
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}
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func (screen *BrowserScreen) startDeleteItem() bool {
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@ -963,31 +888,6 @@ func (screen *BrowserScreen) startExportJSON() bool {
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return false
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}
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// Print text on multiple lines, if needed
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// msg - What to print
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// indentPadding - number of spaces to pad lines after the first
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// startX - Starting x
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// startY - Starting y
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// maxWidth - Maximum width
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// fg, bg - Colors
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// Returns the number of lines used
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func (screen *BrowserScreen) drawMultilineText(msg string, indentPadding, startX, startY, maxWidth int, fg, bg termbox.Attribute) int {
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var numLines int
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spacePadding := strings.Repeat(" ", indentPadding)
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// First we need to split 'msg' into the lines it should have (split on '\n')
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msgs := strings.Split(msg, "\n")
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for _, msg = range msgs {
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for len(msg) > maxWidth {
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termboxUtil.DrawStringAtPoint(msg[:maxWidth-1], startX, (startY + numLines), fg, bg)
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msg = spacePadding + msg[maxWidth-1:]
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numLines++
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}
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termboxUtil.DrawStringAtPoint(msg, startX, (startY + numLines), fg, bg)
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numLines++
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}
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return numLines
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}
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func (screen *BrowserScreen) setMessage(msg string) {
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screen.message = msg
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screen.messageTime = time.Now()
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