Renamed grid.go.

1 files changed, 0 insertions, 234 deletions

diff --git a/grid.go b/grid.go
deleted file mode 100644
index 142bc40..0000000
--- a/grid.go
+++ /dev/null
@@ -1,234 +0,0 @@
-// 25 february 2014
-
-package ui
-
-import (
-	"fmt"
-)
-
-// A SimpleGrid arranges Controls in a two-dimensional grid.
-// The height of each row and the width of each column is the maximum preferred height and width (respectively) of all the controls in that row or column (respectively).
-// Controls are aligned to the top left corner of each cell.
-// All Controls in a SimpleGrid maintain their preferred sizes by default; if a Control is marked as being "filling", it will be sized to fill its cell.
-// Even if a Control is marked as filling, its preferred size is used to calculate cell sizes.
-// One Control can be marked as "stretchy": when the Window containing the SimpleGrid is resized, the cell containing that Control resizes to take any remaining space; its row and column are adjusted accordingly (so other filling controls in the same row and column will fill to the new height and width, respectively).
-// A stretchy Control implicitly fills its cell.
-// All cooridnates in a SimpleGrid are given in (row,column) form with (0,0) being the top-left cell.
-// 
-// As a special rule, to ensure proper appearance, non-standalone Labels are automatically made filling.
-type SimpleGrid interface {
-	Control
-
-	// SetFilling marks the given Control of the SimpleGrid as filling its cell instead of staying at its preferred size.
-	// It panics if the given coordinate is invalid.
-	SetFilling(row int, column int)
-
-	// SetStretchy marks the given Control of the SimpleGrid as stretchy.
-	// Stretchy implies filling.
-	// Only one control can be stretchy per SimpleGrid; calling SetStretchy multiple times merely changes which control is stretchy (preserving the previous filling value).
-	// It panics if the given coordinate is invalid.
-	SetStretchy(row int, column int)
-}
-
-type simpleGrid struct {
-	controls                 [][]Control
-	filling                  [][]bool
-	stretchyrow, stretchycol int
-	stretchyfill	bool
-	widths, heights          [][]int // caches to avoid reallocating each time
-	rowheights, colwidths    []int
-}
-
-// NewSimpleGrid creates a new SimpleGrid with the given Controls.
-// NewSimpleGrid needs to know the number of Controls in a row (alternatively, the number of columns); it will determine the number in a column from the number of Controls given.
-// NewSimpleGrid panics if not given a full grid of Controls.
-// Example:
-// 	grid := NewSimpleGrid(3,
-// 		control00, control01, control02,
-// 		control10, control11, control12,
-// 		control20, control21, control22)
-func NewSimpleGrid(nPerRow int, controls ...Control) SimpleGrid {
-	if len(controls)%nPerRow != 0 {
-		panic(fmt.Errorf("incomplete simpleGrid given to NewSimpleGrid() (not enough controls to evenly divide %d controls into rows of %d controls each)", len(controls), nPerRow))
-	}
-	nRows := len(controls) / nPerRow
-	cc := make([][]Control, nRows)
-	cf := make([][]bool, nRows)
-	cw := make([][]int, nRows)
-	ch := make([][]int, nRows)
-	i := 0
-	for row := 0; row < nRows; row++ {
-		cc[row] = make([]Control, nPerRow)
-		cf[row] = make([]bool, nPerRow)
-		cw[row] = make([]int, nPerRow)
-		ch[row] = make([]int, nPerRow)
-		for x := 0; x < nPerRow; x++ {
-			cc[row][x] = controls[i]
-			if l, ok := controls[i].(Label); ok && !l.isStandalone() {
-				cf[row][x] = true
-			}
-			i++
-		}
-	}
-	return &simpleGrid{
-		controls:    cc,
-		filling:     cf,
-		stretchyrow: -1,
-		stretchycol: -1,
-		widths:      cw,
-		heights:     ch,
-		rowheights:  make([]int, nRows),
-		colwidths:   make([]int, nPerRow),
-	}
-}
-
-func (g *simpleGrid) SetFilling(row int, column int) {
-	if row < 0 || column < 0 || row > len(g.filling) || column > len(g.filling[row]) {
-		panic(fmt.Errorf("coordinate (%d,%d) out of range passed to SimpleGrid.SetFilling()", row, column))
-	}
-	g.filling[row][column] = true
-}
-
-func (g *simpleGrid) SetStretchy(row int, column int) {
-	if row < 0 || column < 0 || row > len(g.filling) || column > len(g.filling[row]) {
-		panic(fmt.Errorf("coordinate (%d,%d) out of range passed to SimpleGrid.SetStretchy()", row, column))
-	}
-	if g.stretchyrow != -1 || g.stretchycol != -1 {
-		g.filling[g.stretchyrow][g.stretchycol] = g.stretchyfill
-	}
-	g.stretchyrow = row
-	g.stretchycol = column
-	g.stretchyfill = g.filling[g.stretchyrow][g.stretchycol]		// save previous value in case it changes later
-	g.filling[g.stretchyrow][g.stretchycol] = true
-}
-
-func (g *simpleGrid) setParent(parent *controlParent) {
-	for _, col := range g.controls {
-		for _, c := range col {
-			c.setParent(parent)
-		}
-	}
-}
-
-func (g *simpleGrid) allocate(x int, y int, width int, height int, d *sizing) (allocations []*allocation) {
-	max := func(a int, b int) int {
-		if a > b {
-			return a
-		}
-		return b
-	}
-
-	var current *allocation		// for neighboring
-
-	if len(g.controls) == 0 {
-		return nil
-	}
-	// 0) inset the available rect by the needed padding
-	width -= (len(g.colwidths) - 1) * d.xpadding
-	height -= (len(g.rowheights) - 1) * d.ypadding
-	// 1) clear data structures
-	for i := range g.rowheights {
-		g.rowheights[i] = 0
-	}
-	for i := range g.colwidths {
-		g.colwidths[i] = 0
-	}
-	// 2) get preferred sizes; compute row/column sizes
-	for row, xcol := range g.controls {
-		for col, c := range xcol {
-			w, h := c.preferredSize(d)
-			g.widths[row][col] = w
-			g.heights[row][col] = h
-			g.rowheights[row] = max(g.rowheights[row], h)
-			g.colwidths[col] = max(g.colwidths[col], w)
-		}
-	}
-	// 3) handle the stretchy control
-	if g.stretchyrow != -1 && g.stretchycol != -1 {
-		for i, w := range g.colwidths {
-			if i != g.stretchycol {
-				width -= w
-			}
-		}
-		for i, h := range g.rowheights {
-			if i != g.stretchyrow {
-				height -= h
-			}
-		}
-		g.colwidths[g.stretchycol] = width
-		g.rowheights[g.stretchyrow] = height
-	}
-	// 4) draw
-	startx := x
-	for row, xcol := range g.controls {
-		current = nil		// reset on new columns
-		for col, c := range xcol {
-			w := g.widths[row][col]
-			h := g.heights[row][col]
-			if g.filling[row][col] {
-				w = g.colwidths[col]
-				h = g.rowheights[row]
-			}
-			as := c.allocate(x, y, w, h, d)
-			if current != nil {			// connect first left to first right
-				current.neighbor = c
-			}
-			if len(as) != 0 {
-				current = as[0]			// next left is first subwidget
-			} else {
-				current = nil			// spaces don't have allocation data
-			}
-			allocations = append(allocations, as...)
-			x += g.colwidths[col] + d.xpadding
-		}
-		x = startx
-		y += g.rowheights[row] + d.ypadding
-	}
-	return
-}
-
-// filling and stretchy are ignored for preferred size calculation
-func (g *simpleGrid) preferredSize(d *sizing) (width int, height int) {
-	max := func(a int, b int) int {
-		if a > b {
-			return a
-		}
-		return b
-	}
-
-	width -= (len(g.colwidths) - 1) * d.xpadding
-	height -= (len(g.rowheights) - 1) * d.ypadding
-	// 1) clear data structures
-	for i := range g.rowheights {
-		g.rowheights[i] = 0
-	}
-	for i := range g.colwidths {
-		g.colwidths[i] = 0
-	}
-	// 2) get preferred sizes; compute row/column sizes
-	for row, xcol := range g.controls {
-		for col, c := range xcol {
-			w, h := c.preferredSize(d)
-			g.widths[row][col] = w
-			g.heights[row][col] = h
-			g.rowheights[row] = max(g.rowheights[row], h)
-			g.colwidths[col] = max(g.colwidths[col], w)
-		}
-	}
-	// 3) now compute
-	for _, w := range g.colwidths {
-		width += w
-	}
-	for _, h := range g.rowheights {
-		height += h
-	}
-	return width, height
-}
-
-func (g *simpleGrid) commitResize(c *allocation, d *sizing) {
-	// this is to satisfy Control; nothing to do here
-}
-
-func (g *simpleGrid) getAuxResizeInfo(d *sizing) {
-	// this is to satisfy Control; nothing to do here
-}