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| 1 | +// 26 august 2018 |
| 2 | + |
| 3 | +package ui |
| 4 | + |
| 5 | +import ( |
| 6 | + "unsafe" |
| 7 | +) |
| 8 | + |
| 9 | +// #include "pkgui.h" |
| 10 | +import "C" |
| 11 | + |
| 12 | +// TableModelColumnNeverEditable and |
| 13 | +// TableModelColumnAlwaysEditable are the value of an editable |
| 14 | +// model column parameter to one of the Table create column |
| 15 | +// functions; if used, that jparticular Table colum is not editable |
| 16 | +// by the user and always editable by the user, respectively. |
| 17 | +const ( |
| 18 | + TableModelColumnNeverEditable = -1 |
| 19 | + TableModelColumnAlwaysEditable = -2 |
| 20 | +) |
| 21 | + |
| 22 | +// TableTextColumnOptionalParams are the optional parameters |
| 23 | +// that control the appearance of the text column of a Table. |
| 24 | +type TableTextColumnOptionalParams struct { |
| 25 | + // ColorModelColumn is the model column containing the |
| 26 | + // text color of this Table column's text, or -1 to use the |
| 27 | + // default color. |
| 28 | + // |
| 29 | + // If CellValue for this column for any cell returns nil, that |
| 30 | + // cell will also use the default text color. |
| 31 | + ColorModelColumn int |
| 32 | +} |
| 33 | + |
| 34 | +func (p *TableTextColumnOptionalParams) toLibui() *C.uiTableTextColumnOptionalParams { |
| 35 | + if p == nil { |
| 36 | + return nil |
| 37 | + } |
| 38 | + cp := C.pkguiAllocTableTextColumnOptionalParams() |
| 39 | + cp.ColorModelColumn = C.int(p.ColorModelColumn) |
| 40 | + return cp |
| 41 | +} |
| 42 | + |
| 43 | +// TableParams defines the parameters passed to NewTable. |
| 44 | +type TableParams struct { |
| 45 | + // Model is the TableModel to use for this uiTable. |
| 46 | + // This parameter cannot be nil. |
| 47 | + Model *TableModel |
| 48 | + |
| 49 | + // RowBackgroundColorModelColumn is a model column |
| 50 | + // number that defines the background color used for the |
| 51 | + // entire row in the Table, or -1 to use the default color for |
| 52 | + // all rows. |
| 53 | + // |
| 54 | + // If CellValue for this column for any row returns NULL, that |
| 55 | + // row will also use the default background color. |
| 56 | + RowBackgroundColorModelColumn int |
| 57 | +} |
| 58 | + |
| 59 | +func (p *TableParams) toLibui() *C.uiTableParams { |
| 60 | + cp := C.pkguiAllocTableParams() |
| 61 | + cp.Model = p.Model.m |
| 62 | + cp.RowBackgroundColorModelColumn = C.int(p.RowBackgroundColorModelColumn) |
| 63 | + return cp |
| 64 | +} |
| 65 | + |
| 66 | +// Table is a Control that shows tabular data, allowing users to |
| 67 | +// manipulate rows of such data at a time. |
| 68 | +type Table struct { |
| 69 | + ControlBase |
| 70 | + t *C.uiTable |
| 71 | +} |
| 72 | + |
| 73 | +// NewTable creates a new Table with the specified parameters. |
| 74 | +func NewTable(p *TableParams) *Table { |
| 75 | + t := new(Table) |
| 76 | + |
| 77 | + cp := p.toLibui() |
| 78 | + t.t = C.uiNewTable(cp) |
| 79 | + C.pkguiFreeTableParams(cp) |
| 80 | + |
| 81 | + t.ControlBase = NewControlBase(t, uintptr(unsafe.Pointer(t.t))) |
| 82 | + return t |
| 83 | +} |
| 84 | + |
| 85 | +// AppendTextColumn appends a text column to t. name is |
| 86 | +// displayed in the table header. textModelColumn is where the text |
| 87 | +// comes from. If a row is editable according to |
| 88 | +// textEditableModelColumn, SetCellValue is called with |
| 89 | +// textModelColumn as the column. |
| 90 | +func (t *Table) AppendTextColumn(name string, textModelColumn int, textEditableModelColumn int, textParams *TableTextColumnOptionalParams) { |
| 91 | + cname := C.CString(name) |
| 92 | + defer freestr(cname) |
| 93 | + cp := textParams.toLibui() |
| 94 | + defer C.pkguiFreeTableTextColumnOptionalParams(cp) |
| 95 | + C.uiTableAppendTextColumn(t.t, cname, C.int(textModelColumn), C.int(textEditableModelColumn), cp) |
| 96 | +} |
| 97 | + |
| 98 | +// AppendImageColumn appends an image column to t. |
| 99 | +// Images are drawn at icon size, appropriate to the pixel density |
| 100 | +// of the screen showing the Table. |
| 101 | +func (t *Table) AppendImageColumn(name string, imageModelColumn int) { |
| 102 | + cname := C.CString(name) |
| 103 | + defer freestr(cname) |
| 104 | + C.uiTableAppendImageColumn(t.t, cname, C.int(imageModelColumn)) |
| 105 | +} |
| 106 | + |
| 107 | +// AppendImageTextColumn appends a column to t that |
| 108 | +// shows both an image and text. |
| 109 | +func (t *Table) AppendImageTextColumn(name string, imageModelColumn int, textModelColumn int, textEditableModelColumn int, textParams *TableTextColumnOptionalParams) { |
| 110 | + cname := C.CString(name) |
| 111 | + defer freestr(cname) |
| 112 | + cp := textParams.toLibui() |
| 113 | + defer C.pkguiFreeTableTextColumnOptionalParams(cp) |
| 114 | + C.uiTableAppendImageTextColumn(t.t, cname, C.int(imageModelColumn), C.int(textModelColumn), C.int(textEditableModelColumn), cp) |
| 115 | +} |
| 116 | + |
| 117 | +// AppendCheckboxColumn appends a column to t that |
| 118 | +// contains a checkbox that the user can interact with (assuming the |
| 119 | +// checkbox is editable). SetCellValue will be called with |
| 120 | +// checkboxModelColumn as the column in this case. |
| 121 | +func (t *Table) AppendCheckboxColumn(name string, checkboxModelColumn int, checkboxEditableModelColumn int) { |
| 122 | + cname := C.CString(name) |
| 123 | + defer freestr(cname) |
| 124 | + C.uiTableAppendCheckboxColumn(t.t, cname, C.int(checkboxModelColumn), C.int(checkboxEditableModelColumn)) |
| 125 | +} |
| 126 | + |
| 127 | +// AppendCheckboxTextColumn appends a column to t |
| 128 | +// that contains both a checkbox and text. |
| 129 | +func (t *Table) AppendCheckboxTextColumn(name string, checkboxModelColumn int, checkboxEditableModelColumn int, textModelColumn int, textEditableModelColumn int, textParams *TableTextColumnOptionalParams) { |
| 130 | + cname := C.CString(name) |
| 131 | + defer freestr(cname) |
| 132 | + cp := textParams.toLibui() |
| 133 | + defer C.pkguiFreeTableTextColumnOptionalParams(cp) |
| 134 | + C.uiTableAppendCheckboxTextColumn(t.t, cname, C.int(checkboxModelColumn), C.int(checkboxEditableModelColumn), C.int(textModelColumn), C.int(textEditableModelColumn), cp) |
| 135 | +} |
| 136 | + |
| 137 | +// AppendProgressBarColumn appends a column to t |
| 138 | +// that displays a progress bar. These columns work like |
| 139 | +// ProgressBar: a cell value of 0..100 displays that percentage, and |
| 140 | +// a cell value of -1 displays an indeterminate progress bar. |
| 141 | +func (t *Table) AppendProgressBarColumn(name string, progressModelColumn int) { |
| 142 | + cname := C.CString(name) |
| 143 | + defer freestr(cname) |
| 144 | + C.uiTableAppendProgressBarColumn(t.t, cname, C.int(progressModelColumn)) |
| 145 | +} |
| 146 | + |
| 147 | +// AppendButtonColumn appends a column to t |
| 148 | +// that shows a button that the user can click on. When the user |
| 149 | +// does click on the button, SetCellValue is called with a nil |
| 150 | +// value and buttonModelColumn as the column. |
| 151 | +// CellValue on buttonModelColumn should return the text to show |
| 152 | +// in the button. |
| 153 | +func (t *Table) AppendButtonColumn(name string, buttonModelColumn int, buttonClickableModelColumn int) { |
| 154 | + cname := C.CString(name) |
| 155 | + defer freestr(cname) |
| 156 | + C.uiTableAppendButtonColumn(t.t, cname, C.int(buttonModelColumn), C.int(buttonClickableModelColumn)) |
| 157 | +} |
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