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builder_panel.go
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builder_panel.go
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// Copyright 2016 The G3N Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package gui
import (
"path/filepath"
"github.com/leapar/engine/math32"
"github.com/leapar/engine/window"
)
// buildPanel builds an object of type Panel
func buildPanel(b *Builder, am map[string]interface{}) (IPanel, error) {
pan := NewPanel(0, 0)
err := b.SetAttribs(am, pan)
if err != nil {
return nil, err
}
// Builds children recursively
if am[AttribItems] != nil {
items := am[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, pan)
if err != nil {
return nil, err
}
pan.Add(child)
}
}
return pan, nil
}
// buildImagePanel builds a gui object of type ImagePanel
func buildImagePanel(b *Builder, am map[string]interface{}) (IPanel, error) {
// Checks imagefile attribute
if am[AttribImageFile] == nil {
return nil, b.err(am, AttribImageFile, "Must be supplied")
}
// If path is not absolute join with user supplied image base path
imagefile := am[AttribImageFile].(string)
if !filepath.IsAbs(imagefile) {
imagefile = filepath.Join(b.imgpath, imagefile)
}
// Builds panel and set common attributes
panel, err := NewImage(imagefile)
if err != nil {
return nil, err
}
err = b.SetAttribs(am, panel)
if err != nil {
return nil, err
}
// Sets optional AspectWidth attribute
if aw := am[AttribAspectWidth]; aw != nil {
panel.SetContentAspectWidth(aw.(float32))
}
// Sets optional AspectHeight attribute
if ah := am[AttribAspectHeight]; ah != nil {
panel.SetContentAspectHeight(ah.(float32))
}
// Builds children recursively
if am[AttribItems] != nil {
items := am[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, panel)
if err != nil {
return nil, err
}
panel.Add(child)
}
}
return panel, nil
}
// buildLabel builds a gui object of type Label
func buildLabel(b *Builder, am map[string]interface{}) (IPanel, error) {
var label *Label
if am[AttribIcon] != nil {
label = NewIcon(am[AttribIcon].(string))
} else if am[AttribText] != nil {
label = NewLabel(am[AttribText].(string))
} else {
label = NewLabel("")
}
// Sets common attributes
err := b.SetAttribs(am, label)
if err != nil {
return nil, err
}
// Set optional background color
if bgc := am[AttribBgColor]; bgc != nil {
label.SetBgColor4(bgc.(*math32.Color4))
}
// Set optional font color
if fc := am[AttribFontColor]; fc != nil {
label.SetColor4(fc.(*math32.Color4))
}
// Sets optional font size
if fs := am[AttribFontSize]; fs != nil {
label.SetFontSize(float64(fs.(float32)))
}
// Sets optional font dpi
if fdpi := am[AttribFontDPI]; fdpi != nil {
label.SetFontDPI(float64(fdpi.(float32)))
}
// Sets optional line spacing
if ls := am[AttribLineSpacing]; ls != nil {
label.SetLineSpacing(float64(ls.(float32)))
}
return label, nil
}
// buildImageLabel builds a gui object of type: ImageLabel
func buildImageLabel(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds image label and set common attributes
var text string
if am[AttribText] != nil {
text = am[AttribText].(string)
}
imglabel := NewImageLabel(text)
err := b.SetAttribs(am, imglabel)
if err != nil {
return nil, err
}
// Sets optional icon(s)
if icon := am[AttribIcon]; icon != nil {
imglabel.SetIcon(icon.(string))
}
// Sets optional image from file
// If path is not absolute join with user supplied image base path
if imgf := am[AttribImageFile]; imgf != nil {
path := imgf.(string)
if !filepath.IsAbs(path) {
path = filepath.Join(b.imgpath, path)
}
err := imglabel.SetImageFromFile(path)
if err != nil {
return nil, err
}
}
return imglabel, nil
}
// buildButton builds a gui object of type: Button
func buildButton(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds button and set commont attributes
var text string
if am[AttribText] != nil {
text = am[AttribText].(string)
}
button := NewButton(text)
err := b.SetAttribs(am, button)
if err != nil {
return nil, err
}
// Sets optional icon(s)
if icon := am[AttribIcon]; icon != nil {
button.SetIcon(icon.(string))
}
// Sets optional image from file
// If path is not absolute join with user supplied image base path
if imgf := am[AttribImageFile]; imgf != nil {
path := imgf.(string)
if !filepath.IsAbs(path) {
path = filepath.Join(b.imgpath, path)
}
err := button.SetImage(path)
if err != nil {
return nil, err
}
}
return button, nil
}
// buildEdit builds a gui object of type: "Edit"
func buildEdit(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds button and set attributes
var width float32
var placeholder string
if aw := am[AttribWidth]; aw != nil {
width = aw.(float32)
}
if ph := am[AttribPlaceHolder]; ph != nil {
placeholder = ph.(string)
}
edit := NewEdit(int(width), placeholder)
err := b.SetAttribs(am, edit)
if err != nil {
return nil, err
}
return edit, nil
}
// buildCheckBox builds a gui object of type: CheckBox
func buildCheckBox(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds check box and set commont attributes
var text string
if am[AttribText] != nil {
text = am[AttribText].(string)
}
cb := NewCheckBox(text)
err := b.SetAttribs(am, cb)
if err != nil {
return nil, err
}
// Sets optional checked value
if checked := am[AttribChecked]; checked != nil {
cb.SetValue(checked.(bool))
}
return cb, nil
}
// buildRadioButton builds a gui object of type: RadioButton
func buildRadioButton(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds check box and set commont attributes
var text string
if am[AttribText] != nil {
text = am[AttribText].(string)
}
rb := NewRadioButton(text)
err := b.SetAttribs(am, rb)
if err != nil {
return nil, err
}
// Sets optional radio button group
if gr := am[AttribGroup]; gr != nil {
rb.SetGroup(gr.(string))
}
// Sets optional checked value
if checked := am[AttribChecked]; checked != nil {
rb.SetValue(checked.(bool))
}
return rb, nil
}
// buildVList builds a gui object of type: VList
func buildVList(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds list and set commont attributes
list := NewVList(0, 0)
err := b.SetAttribs(am, list)
if err != nil {
return nil, err
}
// Builds children
if am[AttribItems] != nil {
items := am[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, list)
if err != nil {
return nil, err
}
list.Add(child)
}
}
return list, nil
}
// buildHList builds a gui object of type: VList
func buildHList(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds list and set commont attributes
list := NewHList(0, 0)
err := b.SetAttribs(am, list)
if err != nil {
return nil, err
}
// Builds children
if am[AttribItems] != nil {
items := am[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, list)
if err != nil {
return nil, err
}
list.Add(child)
}
}
return list, nil
}
// buildDropDown builds a gui object of type: DropDown
func buildDropDown(b *Builder, am map[string]interface{}) (IPanel, error) {
// If image label attribute defined use it, otherwise
// uses default value.
var imglabel *ImageLabel
if iv := am[AttribImageLabel]; iv != nil {
imgl := iv.(map[string]interface{})
imgl[AttribType] = TypeImageLabel
ipan, err := b.build(imgl, nil)
if err != nil {
return nil, err
}
imglabel = ipan.(*ImageLabel)
} else {
imglabel = NewImageLabel("")
}
// Builds drop down and set common attributes
dd := NewDropDown(0, imglabel)
err := b.SetAttribs(am, dd)
if err != nil {
return nil, err
}
// Builds children
if am[AttribItems] != nil {
items := am[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, dd)
if err != nil {
return nil, err
}
dd.Add(child.(*ImageLabel))
}
}
return dd, nil
}
// buildMenu builds a gui object of type: Menu or MenuBar from the
// specified panel descriptor.
func buildMenu(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds menu bar or menu
var menu *Menu
if am[AttribType].(string) == TypeMenuBar {
menu = NewMenuBar()
} else {
menu = NewMenu()
}
// Only sets attribs for top level menus
if pi := am[AttribParentInternal]; pi != nil {
par := pi.(map[string]interface{})
ptype := ""
if ti := par[AttribType]; ti != nil {
ptype = ti.(string)
}
if ptype != TypeMenu && ptype != TypeMenuBar {
err := b.SetAttribs(am, menu)
if err != nil {
return nil, err
}
}
}
// Builds and adds menu items
if am[AttribItems] != nil {
items := am[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
// Get the item optional type and text
item := items[i]
itype := ""
itext := ""
if iv := item[AttribType]; iv != nil {
itype = iv.(string)
}
if iv := item[AttribText]; iv != nil {
itext = iv.(string)
}
// Item is another menu
if itype == TypeMenu {
subm, err := buildMenu(b, item)
if err != nil {
return nil, err
}
menu.AddMenu(itext, subm.(*Menu))
continue
}
// Item is a separator
if itext == TypeSeparator {
menu.AddSeparator()
continue
}
// Item must be a menu option
mi := menu.AddOption(itext)
// Set item optional icon(s)
if icon := item[AttribIcon]; icon != nil {
mi.SetIcon(icon.(string))
}
// Sets optional menu item shortcut
if sci := item[AttribShortcut]; sci != nil {
sc := sci.([]int)
mi.SetShortcut(window.ModifierKey(sc[0]), window.Key(sc[1]))
}
}
}
return menu, nil
}
// buildSlider builds a gui object of type: HSlider or VSlider
func buildSlider(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds horizontal or vertical slider
var slider *Slider
if am[AttribType].(string) == TypeHSlider {
slider = NewHSlider(0, 0)
} else {
slider = NewVSlider(0, 0)
}
// Sets common attributes
err := b.SetAttribs(am, slider)
if err != nil {
return nil, err
}
// Sets optional text
if itext := am[AttribText]; itext != nil {
slider.SetText(itext.(string))
}
// Sets optional scale factor
if isf := am[AttribScaleFactor]; isf != nil {
slider.SetScaleFactor(isf.(float32))
}
// Sets optional value
if iv := am[AttribValue]; iv != nil {
slider.SetValue(iv.(float32))
}
return slider, nil
}
// buildSplitter builds a gui object of type: HSplitterr or VSplitter
func buildSplitter(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds horizontal or vertical splitter
var splitter *Splitter
if am[AttribType].(string) == TypeHSplitter {
splitter = NewHSplitter(0, 0)
} else {
splitter = NewVSplitter(0, 0)
}
// Sets common attributes
err := b.SetAttribs(am, splitter)
if err != nil {
return nil, err
}
// Sets optional split value
if v := am[AttribSplit]; v != nil {
splitter.SetSplit(v.(float32))
}
// Internal function to set each of the splitter's panel attributes and items
setpan := func(attrib string, pan *Panel) error {
// Get internal panel attributes
ipattribs := am[attrib]
if ipattribs == nil {
return nil
}
pattr := ipattribs.(map[string]interface{})
// Set panel attributes
err := b.SetAttribs(pattr, pan)
if err != nil {
return nil
}
// Builds panel children
if pattr[AttribItems] != nil {
items := pattr[AttribItems].([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, pan)
if err != nil {
return err
}
pan.Add(child)
}
}
return nil
}
// Set optional splitter panel's attributes
err = setpan(AttribPanel0, &splitter.P0)
if err != nil {
return nil, err
}
err = setpan(AttribPanel1, &splitter.P1)
if err != nil {
return nil, err
}
return splitter, nil
}
// buildTree builds a gui object of type: Tree
func buildTree(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds tree and sets its common attributes
tree := NewTree(0, 0)
err := b.SetAttribs(am, tree)
if err != nil {
return nil, err
}
// Internal function to build tree nodes recursively
var buildItems func(am map[string]interface{}, pnode *TreeNode) error
buildItems = func(am map[string]interface{}, pnode *TreeNode) error {
v := am[AttribItems]
if v == nil {
return nil
}
items := v.([]map[string]interface{})
for i := 0; i < len(items); i++ {
// Get the item type
item := items[i]
itype := ""
if v := item[AttribType]; v != nil {
itype = v.(string)
}
itext := ""
if v := item[AttribText]; v != nil {
itext = v.(string)
}
// Item is a tree node
if itype == "" || itype == TypeTreeNode {
var node *TreeNode
if pnode == nil {
node = tree.AddNode(itext)
} else {
node = pnode.AddNode(itext)
}
err := buildItems(item, node)
if err != nil {
return err
}
continue
}
// Other controls
ipan, err := b.build(item, nil)
if err != nil {
return err
}
if pnode == nil {
tree.Add(ipan)
} else {
pnode.Add(ipan)
}
}
return nil
}
// Build nodes
err = buildItems(am, nil)
if err != nil {
return nil, err
}
return tree, nil
}
// buildWindow builds a gui object of type: Window
func buildWindow(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds window and sets its common attributes
win := NewWindow(0, 0)
err := b.SetAttribs(am, win)
if err != nil {
return nil, err
}
// Sets optional title
if title := am[AttribTitle]; title != nil {
win.SetTitle(title.(string))
}
// Set optional resizable borders
if resiz := am[AttribResizeBorders]; resiz != nil {
win.SetResizable(resiz.(bool))
}
// Builds window children
if v := am[AttribItems]; v != nil {
items := v.([]map[string]interface{})
for i := 0; i < len(items); i++ {
item := items[i]
child, err := b.build(item, win)
if err != nil {
return nil, err
}
win.Add(child)
}
}
return win, nil
}
// buildChart builds a gui object of type: Chart
func buildChart(b *Builder, am map[string]interface{}) (IPanel, error) {
// Builds window and sets its common attributes
chart := NewChart(0, 0)
err := b.SetAttribs(am, chart)
if err != nil {
return nil, err
}
// Sets optional title
if title := am[AttribTitle]; title != nil {
chart.SetTitle(title.(string), 14)
}
// Sets x scale attibutes
if v := am[AttribScalex]; v != nil {
sx := v.(map[string]interface{})
// Sets optional x scale margin
if mx := sx[AttribMargin]; mx != nil {
chart.SetMarginX(mx.(float32))
}
// Sets optional x scale format
if fx := sx[AttribFormat]; fx != nil {
chart.SetFormatX(fx.(string))
}
// Sets optional x scale font size
if fsize := sx[AttribFontSize]; fsize != nil {
chart.SetFontSizeX(float64(fsize.(float32)))
}
// Number of lines
lines := 4
if v := sx[AttribLines]; v != nil {
lines = v.(int)
}
// Lines color
color4 := math32.NewColor4("Black")
if v := sx[AttribColor]; v != nil {
color4 = v.(*math32.Color4)
}
color := color4.ToColor()
chart.SetScaleX(lines, &color)
// Range first
firstX := float32(0)
if v := sx[AttribFirstx]; v != nil {
firstX = v.(float32)
}
// Range step
stepX := float32(1)
if v := sx[AttribStepx]; v != nil {
stepX = v.(float32)
}
// Range count step
countStepX := float32(1)
if v := sx[AttribStepx]; v != nil {
countStepX = v.(float32)
}
chart.SetRangeX(firstX, stepX, countStepX)
}
// Sets y scale attibutes
if v := am[AttribScaley]; v != nil {
sy := v.(map[string]interface{})
// Sets optional y scale margin
if my := sy[AttribMargin]; my != nil {
chart.SetMarginY(my.(float32))
}
// Sets optional y scale format
if fy := sy[AttribFormat]; fy != nil {
chart.SetFormatY(fy.(string))
}
// Sets optional y scale font size
if fsize := sy[AttribFontSize]; fsize != nil {
chart.SetFontSizeY(float64(fsize.(float32)))
}
// Number of lines
lines := 4
if v := sy[AttribLines]; v != nil {
lines = v.(int)
}
// Lines color
color4 := math32.NewColor4("Black")
if v := sy[AttribColor]; v != nil {
color4 = v.(*math32.Color4)
}
color := color4.ToColor()
chart.SetScaleY(lines, &color)
// Range min
rmin := float32(-10)
if v := sy[AttribRangeMin]; v != nil {
rmin = v.(float32)
}
// Range max
rmax := float32(10)
if v := sy[AttribRangeMax]; v != nil {
rmax = v.(float32)
}
chart.SetRangeY(rmin, rmax)
// Range auto
if rauto := sy[AttribRangeAuto]; rauto != nil {
chart.SetRangeYauto(v.(bool))
}
}
return chart, nil
}
// buildTable builds a gui object of type: Table
func buildTable(b *Builder, am map[string]interface{}) (IPanel, error) {
// Internal function to build a TableColumn from its attribute map
buildTableCol := func(b *Builder, am map[string]interface{}) (*TableColumn, error) {
tc := &TableColumn{}
if iv := am[AttribId]; iv != nil {
tc.Id = iv.(string)
}
if iv := am[AttribHeader]; iv != nil {
tc.Header = iv.(string)
}
if iv := am[AttribWidth]; iv != nil {
tc.Width = iv.(float32)
}
if iv := am[AttribMinwidth]; iv != nil {
tc.Minwidth = iv.(float32)
}
if iv := am[AttribHidden]; iv != nil {
tc.Hidden = iv.(bool)
}
if iv := am[AttribFormat]; iv != nil {
tc.Format = iv.(string)
}
if iv := am[AttribExpand]; iv != nil {
tc.Expand = iv.(float32)
}
if iv := am[AttribResize]; iv != nil {
tc.Resize = iv.(bool)
}
if iv := am[AttribSortType]; iv != nil {
tc.Sort = iv.(TableSortType)
}
return tc, nil
}
// Builds table columns array
tableCols := []TableColumn{}
if iv := am[AttribColumns]; iv != nil {
cols := iv.([]map[string]interface{})
for _, c := range cols {
tc, err := buildTableCol(b, c)
if err != nil {
return nil, err
}
tableCols = append(tableCols, *tc)
}
}
// Creates table and set common attributes
table, err := NewTable(0, 0, tableCols)
if err != nil {
return nil, err
}
err = b.SetAttribs(am, table)
if err != nil {
return nil, err
}
// Sets optional show header attribute
if show := am[AttribShowHeader]; show != nil {
table.ShowHeader(show.(bool))
}
return table, nil
}
// buildTabBar builds a gui object of type: TabBare
func buildTabBar(b *Builder, am map[string]interface{}) (IPanel, error) {
// Creates TabBar and set common attributes
tabbar := NewTabBar(0, 0)
err := b.SetAttribs(am, tabbar)
if err != nil {
return nil, err
}
v := am[AttribItems]
// For each tab
if v != nil {
items := v.([]map[string]interface{})
for _, item := range items {
// Creates Tab
text := ""
if v := item[AttribText]; v != nil {
text = v.(string)
}
tab := tabbar.AddTab(text)
// Sets optional icon
if v := item[AttribIcon]; v != nil {
tab.SetIcon(v.(string))
}
// Sets optional image
if v := item[AttribImageFile]; v != nil {
// If path is not absolute join with user supplied image base path
imagefile := v.(string)
if !filepath.IsAbs(imagefile) {
imagefile = filepath.Join(b.imgpath, imagefile)
}
err := tab.SetImage(imagefile)
if err != nil {
return nil, err
}
}
// Sets content panel
if v := item[AttribContent]; v != nil {
am := v.(map[string]interface{})
content, err := b.build(am, nil)
if err != nil {
return nil, err
}
tab.SetContent(content)
}
// Sets pinned state
if v := item[AttribPinned]; v != nil {
tab.SetPinned(v.(bool))
}
}
}
return tabbar, nil
}