Moved terminal stuff to a separate repository
This commit is contained in:
parent
43a664009c
commit
dc077a02ab
38
ansi/c0.go
38
ansi/c0.go
@ -1,38 +0,0 @@
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package ansi
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// C0 represents a list of C0 control codes.
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// https://en.wikipedia.org/wiki/C0_and_C1_control_codes
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type C0 byte; const (
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C0_Null C0 = iota
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C0_StartOfHeading
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C0_StartOfText
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C0_EndOfText
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C0_EndOfTransmission
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C0_Enquiry
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C0_Acknowledge
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C0_Bell
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C0_Backspace
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C0_CharacterTab
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C0_LineFeed
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C0_LineTab
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C0_FormFeed
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C0_CarriageReturn
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C0_ShiftOut
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C0_ShiftIn
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C0_DataLinkEscape
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C0_DeviceControlOne
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C0_DeviceControlTwo
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C0_DeviceControlThree
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C0_DeviceControlFour
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C0_NegativeAcknowledge
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C0_SynchronousIdle
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C0_EndOfTransmissionBlock
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C0_Cancel
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C0_EndOfMedium
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C0_Substitute
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C0_Escape
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C0_FileSeparator
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C0_GroupSeparator
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C0_RecordSeparator
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C0_UnitSeparator
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)
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48
ansi/c1.go
48
ansi/c1.go
@ -1,48 +0,0 @@
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package ansi
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// C1 represents a list of C1 control codes.
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// https://en.wikipedia.org/wiki/C0_and_C1_control_codes
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type C1 byte; const (
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C1_PaddingCharacter C1 = iota + 128
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C1_HighOctetPreset
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C1_BreakPermittedHere
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C1_NoBreakHere
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C1_Index
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C1_NextLine
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C1_StartOfSelectedArea
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C1_EndOfSelectedArea
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C1_CharacterTabSet
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C1_CharacterTabWithJustification
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C1_LineTabSet
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C1_PartialLineForward
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C1_PartialLineBackward
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C1_ReverseLineFeed
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C1_SingleShift2
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C1_SingleShift3
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C1_DeviceControlString
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C1_PrivateUse1
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C1_PrivateUse2
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C1_SetTransmitState
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C1_CancelCharacter
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C1_MessageWaiting
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C1_StartOfProtectedArea
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C1_EndOfProtectedArea
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C1_StartOfString
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C1_SingleGraphicCharacterIntroducer
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C1_SingleCharacterIntroducer
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C1_ControlSequenceIntroducer
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C1_StringTerminator
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C1_OperatingSystemCommand
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C1_PrivacyMessage
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C1_ApplicationProgramCommand
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)
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// Is checks if a byte is equal to a C0 code.
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func (code C0) Is (test byte) bool {
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return test == byte(code)
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}
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// Is checks if a byte is equal to a C1 code.
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func (code C1) Is (test byte) bool {
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return byte(code) == test
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}
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@ -1,90 +0,0 @@
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package ansi
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import "image/color"
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var _ color.Color = Color(0)
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// Color represents a 3, 4, or 8-Bit ansi color.
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type Color byte; const (
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// Dim/standard colors
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ColorBlack Color = iota
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ColorRed
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ColorGreen
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ColorYellow
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ColorBlue
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ColorMagenta
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ColorCyan
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ColorWhite
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// Bright colors
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ColorBrightBlack
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ColorBrightRed
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ColorBrightGreen
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ColorBrightYellow
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ColorBrightBlue
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ColorBrightMagenta
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ColorBrightCyan
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ColorBrightWhite
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// 216 cube colors (16 - 231)
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// 24 grayscale colors (232 - 255)
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)
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// Is16 returns whether the color is a dim or bright color, and can be assigned
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// to a theme palette.
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func (c Color) Is16 () bool {
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return c.IsDim() || c.IsBright()
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}
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// IsDim returns whether the color is dim.
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func (c Color) IsDim () bool {
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return c < 8
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}
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// IsBright returns whether the color is bright.
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func (c Color) IsBright () bool {
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return c >= 8 && c < 16
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}
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// IsCube returns whether the color is part of the 6x6x6 cube.
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func (c Color) IsCube () bool {
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return c >= 16 && c < 232
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}
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// IsGrayscale returns whether the color grayscale.
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func (c Color) IsGrayscale () bool {
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return c >= 232 && c <= 255
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}
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// RGB returns the 8 bit RGB values of the color as a color.RGBA value.
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func (c Color) RGB () (out color.RGBA) {
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switch {
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case c.Is16():
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// each bit is a color component
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out.R = 0xFF * uint8((c & 0x1) >> 0)
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out.G = 0xFF * uint8((c & 0x2) >> 1)
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out.B = 0xFF * uint8((c & 0x4) >> 3)
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// dim if color is in the dim range
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if c & 0x8 > 0 { out.R >>= 1; out.G >>= 1; out.B >>= 1 }
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case c.IsCube():
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index := int(c - 16)
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out.R = uint8((((index / 36) % 6) * 255) / 5)
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out.G = uint8((((index / 6) % 6) * 255) / 5)
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out.B = uint8((((index ) % 6) * 255) / 5)
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case c.IsGrayscale():
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out.R = uint8(((int(c) - 232) * 255) / 23)
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out.G = out.R
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out.B = out.R
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}
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out.A = 0xFF
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return
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}
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// RGBA fulfills the color.Color interface.
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func (c Color) RGBA () (r, g, b, a uint32) {
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return c.RGB().RGBA()
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}
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17
ansi/csi.go
17
ansi/csi.go
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package ansi
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// CSI represents a list of CSI sequences that have no parameters.
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// FIXME: some of these do indeed have parameters
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type CSI int; const (
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CSI_DeviceStatusReport CSI = iota
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CSI_SaveCursorPosition
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CSI_RestoreCursorPosition
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CSI_ShowCursor
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CSI_HideCursor
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CSI_EnableReportingFocus
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CSI_DisableReportingFocus
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CSI_EnableAlternativeBuffer
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CSI_DisableAlternativeBuffer
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CSI_EnableBracketedPasteMode
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CSI_DisableBracketedPasteMode
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)
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360
ansi/decoder.go
360
ansi/decoder.go
@ -1,360 +0,0 @@
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package ansi
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import "strconv"
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import "strings"
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import "image/color"
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// Useful: https://en.wikipedia.org/wiki/ANSI_escape_code
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// Decoder is a state machine capable of decoding text contianing various escape
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// codes and sequences. It satisfies io.Writer. It has no constructor and its
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// zero value can be used safely.
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type Decoder struct {
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// OnText is called when a segment of text is processed.
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OnText func (string)
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// OnC0 is called when a C0 control code is processed that isn't a
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// whitespace character.
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OnC0 func (C0)
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// OnC1 is called when a C1 escape sequence is processed.
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OnC1 func (C1)
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// OnDCS is called when a device control string is processed.
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OnDCS func (string)
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// OnCSI is called when a non-SGR CSI escape sequence with no parameters
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// is processed.
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OnCSI func (CSI)
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// OnSGR is called when a CSI SGR escape sequence with no parameters is
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// processed.
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OnSGR func (SGR)
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// OnPM is called when a privacy message is processed.
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OnPM func (string)
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// OnAPC is called when an application program command is processed.
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OnAPC func (string)
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// Non-SGR CSI sequences with parameters:
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OnCursorUp func (distance int)
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OnCursorDown func (distance int)
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OnCursorForward func (distance int)
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OnCursorBack func (distance int)
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OnCursorNextLine func (distance int)
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OnCursorPreviousLine func (distance int)
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OnCursorHorizontalAbsolute func (column int)
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OnCursorPosition func (column, row int)
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OnEraseInDisplay func (mode int)
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OnEraseInLine func (mode int)
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OnScrollUp func (distance int)
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OnScrollDown func (distance int)
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OnHorizontalVerticalPosition func (column, row int)
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// SGR CSI sequences with parameters:
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OnForegroundColor func (Color)
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OnForegroundColorTrue func (color.RGBA)
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OnBackgroundColor func (Color)
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OnBackgroundColorTrue func (color.RGBA)
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OnUnderlineColor func (Color)
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OnUnderlineColorTrue func (color.RGBA)
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// OSC sequences from XTerm:
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OnWindowTitle func (title string)
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OnIconName func (name string)
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OnIconFile func (path string)
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OnXProperty func (property, value string)
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OnSelectionPut func (selection, text string)
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OnSelectionGet func (selection string)
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OnQueryAllowed func ()
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OnQueryDisallowed func ()
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// OSC sequences from iTerm2:
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OnCursorShape func (shape int)
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OnHyperlink func (params map[string] string, text, link string)
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OnBackgroundImage func (path string)
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state decodeState
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expectingST bool
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gathered []byte
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}
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type decodeState int; const (
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decodeStateText decodeState = iota
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decodeStateAwaitC1
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decodeStateGatherDCS
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decodeStateGatherSOS
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decodeStateGatherCSI
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decodeStateGatherOSC
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decodeStateGatherPM
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decodeStateGatherAPC
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)
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func (decoder *Decoder) Write (buffer []byte) (wrote int, err error) {
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wrote = len(buffer)
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for len(buffer) > 0 {
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switch decoder.state {
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case decodeStateText:
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if C0_Escape.Is(buffer[0]) {
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// begin C1 control code
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decoder.state = decodeStateAwaitC1
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buffer = buffer[1:]
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} else if buffer[0] < ' ' {
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// process C0 control code
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if decoder.OnC0 != nil {
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decoder.OnC0(C0(buffer[0]))
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}
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buffer = buffer[1:]
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} else {
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// process as much plain text as we can
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buffer = decoder.processString(buffer)
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}
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case decodeStateAwaitC1:
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if buffer[0] < 128 {
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// false alarm, this is just a C0 escape
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if decoder.OnC0 != nil {
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decoder.OnC0(C0_Escape)
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}
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break
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}
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switch C1(buffer[0]) {
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case C1_DeviceControlString:
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decoder.state = decodeStateGatherDCS
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case C1_StartOfString:
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decoder.state = decodeStateGatherSOS
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case C1_ControlSequenceIntroducer:
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decoder.state = decodeStateGatherCSI
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case C1_OperatingSystemCommand:
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decoder.state = decodeStateGatherOSC
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case C1_PrivacyMessage:
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decoder.state = decodeStateGatherPM
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case C1_ApplicationProgramCommand:
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decoder.state = decodeStateGatherAPC
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default:
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// process C1 control code
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if decoder.OnC1 != nil {
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decoder.OnC1(C1(buffer[0]))
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}
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}
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buffer = buffer[1:]
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case
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decodeStateGatherDCS,
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decodeStateGatherSOS,
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decodeStateGatherOSC,
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decodeStateGatherPM,
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decodeStateGatherAPC:
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if decoder.expectingST && C1_StringTerminator.Is(buffer[0]) {
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// remove the trailing ESC
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decoder.gathered = decoder.gathered [
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:len(decoder.gathered) - 1]
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if decoder.state == decodeStateGatherOSC {
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// we understand some OSC codes so we
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// handle them differently
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decoder.processOSC()
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} else {
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// generic handler for uncommon stuff
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decoder.processGeneric()
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}
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decoder.state = decodeStateText
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}
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if C0_Escape.Is(buffer[0]) {
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decoder.expectingST = true
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}
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case decodeStateGatherCSI:
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decoder.gather(buffer[0])
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if buffer[0] < 0x30 || buffer[0] > 0x3F {
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decoder.processCSI()
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decoder.state = decodeStateText
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}
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buffer = buffer[1:]
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}
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}
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return
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}
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func (decoder *Decoder) gather (character byte) {
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decoder.gathered = append(decoder.gathered, character)
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}
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func (decoder *Decoder) processString (buffer []byte) []byte {
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for index, char := range buffer {
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if C0_Escape.Is(char) {
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if decoder.OnText != nil {
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decoder.OnText(string(buffer[:index]))
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}
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return buffer[:index]
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}
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}
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return buffer
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}
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func (decoder *Decoder) processGeneric () {
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parameter := string(decoder.gathered)
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switch decoder.state {
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case decodeStateGatherDCS:
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if decoder.OnDCS != nil { decoder.OnDCS(parameter) }
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case decodeStateGatherSOS:
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if decoder.OnText != nil { decoder.OnText(parameter) }
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case decodeStateGatherPM:
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if decoder.OnPM != nil { decoder.OnPM(parameter) }
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case decodeStateGatherAPC:
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if decoder.OnAPC != nil { decoder.OnAPC(parameter) }
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}
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}
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func (decoder *Decoder) processOSC () {
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// TODO: analyze OSC
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}
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func (decoder *Decoder) processCSI () {
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if len(decoder.gathered) < 2 { return }
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parameters := ParameterInts(decoder.gathered)
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var p0, p1, p2, p3 int
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if len(parameters) > 0 { p0 = parameters[0] }
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if len(parameters) > 1 { p1 = parameters[1] }
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if len(parameters) > 2 { p2 = parameters[2] }
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if len(parameters) > 3 { p3 = parameters[3] }
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switch Last(decoder.gathered) {
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case 'A': if decoder.OnCursorUp != nil { decoder.OnCursorUp(clampOne(p0)) }
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case 'B': if decoder.OnCursorDown != nil { decoder.OnCursorDown(clampOne(p0)) }
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case 'C': if decoder.OnCursorForward != nil { decoder.OnCursorForward(clampOne(p0)) }
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case 'D': if decoder.OnCursorBack != nil { decoder.OnCursorBack(clampOne(p0)) }
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case 'E': if decoder.OnCursorNextLine != nil { decoder.OnCursorNextLine(clampOne(p0)) }
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case 'F': if decoder.OnCursorPreviousLine != nil { decoder.OnCursorPreviousLine(clampOne(p0)) }
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case 'G': if decoder.OnCursorHorizontalAbsolute != nil { decoder.OnCursorHorizontalAbsolute(clampOne(p0)) }
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case 'H', 'f': if decoder.OnCursorPosition != nil { decoder.OnCursorPosition(clampOne(p0), clampOne(p1)) }
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case 'J': if decoder.OnEraseInDisplay != nil { decoder.OnEraseInDisplay(p0) }
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case 'K': if decoder.OnEraseInLine != nil { decoder.OnEraseInLine(p0) }
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case 'S': if decoder.OnScrollUp != nil { decoder.OnScrollUp(clampOne(p0)) }
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case 'T': if decoder.OnScrollDown != nil { decoder.OnScrollDown(clampOne(p0)) }
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case 'm':
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p0 := SGR(p0)
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switch {
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case
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p0 >= SGR_ForegroundColorBlack &&
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p0 <= SGR_ForegroundColorWhite &&
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decoder.OnForegroundColor != nil :
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decoder.OnForegroundColor(Color(p0 - SGR_ForegroundColorBlack))
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case
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p0 >= SGR_ForegroundColorBrightBlack &&
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p0 <= SGR_ForegroundColorBrightWhite &&
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decoder.OnForegroundColor != nil :
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decoder.OnForegroundColor(Color(p0 - SGR_ForegroundColorBrightBlack + 8))
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case p0 == SGR_ForegroundColor:
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switch p1 {
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case 2:
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if decoder.OnForegroundColor == nil { break }
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decoder.OnForegroundColor(Color(p1))
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case 5:
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if decoder.OnForegroundColorTrue == nil { break }
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decoder.OnForegroundColorTrue (color.RGBA {
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R: uint8(p1),
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G: uint8(p2),
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B: uint8(p3),
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A: 0xFF,
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})
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}
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case
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p0 >= SGR_BackgroundColorBlack &&
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p0 <= SGR_BackgroundColorWhite &&
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decoder.OnBackgroundColor != nil :
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decoder.OnBackgroundColor(Color(p0 - SGR_BackgroundColorBlack))
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case
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p0 >= SGR_BackgroundColorBrightBlack &&
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p0 <= SGR_BackgroundColorBrightWhite &&
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decoder.OnBackgroundColor != nil :
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decoder.OnBackgroundColor(Color(p0 - SGR_BackgroundColorBrightBlack + 8))
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case p0 == SGR_BackgroundColor:
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switch p1 {
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case 2:
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if decoder.OnBackgroundColor == nil { break }
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decoder.OnBackgroundColor(Color(p1))
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case 5:
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if decoder.OnBackgroundColorTrue == nil { break }
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decoder.OnBackgroundColorTrue (color.RGBA {
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R: uint8(p1),
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G: uint8(p2),
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B: uint8(p3),
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A: 0xFF,
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})
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}
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case p0 == SGR_UnderlineColor:
|
||||
switch p1 {
|
||||
case 2:
|
||||
if decoder.OnUnderlineColor == nil { break }
|
||||
decoder.OnUnderlineColor(Color(p1))
|
||||
case 5:
|
||||
if decoder.OnUnderlineColorTrue == nil { break }
|
||||
decoder.OnUnderlineColorTrue (color.RGBA {
|
||||
R: uint8(p1),
|
||||
G: uint8(p2),
|
||||
B: uint8(p3),
|
||||
A: 0xFF,
|
||||
})
|
||||
}
|
||||
|
||||
default: if decoder.OnSGR != nil { decoder.OnSGR(SGR(p0)) }
|
||||
}
|
||||
|
||||
// TODO
|
||||
case 'n':
|
||||
case 's':
|
||||
case 'u':
|
||||
case 'h':
|
||||
case 'l':
|
||||
}
|
||||
}
|
||||
|
||||
func clampOne (number int) int {
|
||||
if number < 1 {
|
||||
return 1
|
||||
} else {
|
||||
return number
|
||||
}
|
||||
}
|
||||
|
||||
// Last returns the last item of a slice.
|
||||
func Last[T any] (source []T) T {
|
||||
return source[len(source) - 1]
|
||||
}
|
||||
|
||||
// ParameterStrings separates a byte slice by semicolons into a list of strings.
|
||||
func ParameterStrings (source []byte) (parameters []string) {
|
||||
parameters = strings.Split(string(source), ";")
|
||||
for index := range parameters {
|
||||
parameters[index] = strings.TrimSpace(parameters[index])
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// ParameterInts is like ParameterStrings, but returns integers instead of
|
||||
// strings. If a parameter is empty or cannot be converted into an integer, that
|
||||
// parameter will be zero.
|
||||
func ParameterInts (source []byte) (parameters []int) {
|
||||
stringParameters := ParameterStrings(source)
|
||||
parameters = make([]int, len(stringParameters))
|
||||
for index, parameter := range stringParameters {
|
||||
parameters[index], _ = strconv.Atoi(parameter)
|
||||
}
|
||||
return
|
||||
}
|
||||
97
ansi/sgr.go
97
ansi/sgr.go
@ -1,97 +0,0 @@
|
||||
package ansi
|
||||
|
||||
// SGR represents a list of Select Graphic Rendition parameters.
|
||||
type SGR int; const (
|
||||
SGR_Normal SGR = iota
|
||||
SGR_Bold
|
||||
SGR_Dim
|
||||
SGR_Italic
|
||||
SGR_Underline
|
||||
SGR_SlowBlink
|
||||
SGR_RapidBlink
|
||||
SGR_Reverse
|
||||
SGR_Conceal
|
||||
SGR_Strike
|
||||
|
||||
SGR_FontPrimary
|
||||
SGR_Font1
|
||||
SGR_Font2
|
||||
SGR_Font3
|
||||
SGR_Font4
|
||||
SGR_Font5
|
||||
SGR_Font6
|
||||
SGR_Font7
|
||||
SGR_Font8
|
||||
SGR_Font9
|
||||
SGR_FontFraktur
|
||||
|
||||
SGR_DoubleUnderline
|
||||
SGR_NormalIntensity
|
||||
SGR_NeitherItalicNorBlackletter
|
||||
SGR_NotUnderlined
|
||||
SGR_NotBlinking
|
||||
SGR_PorportionalSpacing
|
||||
SGR_NotReversed
|
||||
SGR_NotCrossedOut
|
||||
|
||||
SGR_ForegroundColorBlack
|
||||
SGR_ForegroundColorRed
|
||||
SGR_ForegroundColorGreen
|
||||
SGR_ForegroundColorYellow
|
||||
SGR_ForegroundColorBlue
|
||||
SGR_ForegroundColorMagenta
|
||||
SGR_ForegroundColorCyan
|
||||
SGR_ForegroundColorWhite
|
||||
SGR_ForegroundColor
|
||||
SGR_ForegroundColorDefault
|
||||
|
||||
SGR_BackgroundColorBlack
|
||||
SGR_BackgroundColorRed
|
||||
SGR_BackgroundColorGreen
|
||||
SGR_BackgroundColorYellow
|
||||
SGR_BackgroundColorBlue
|
||||
SGR_BackgroundColorMagenta
|
||||
SGR_BackgroundColorCyan
|
||||
SGR_BackgroundColorWhite
|
||||
SGR_BackgroundColor
|
||||
SGR_BackgroundColorDefault
|
||||
|
||||
SGR_DisablePorportionalSpacing
|
||||
SGR_Framed
|
||||
SGR_Encircled
|
||||
SGR_Overlined
|
||||
SGR_NeitherFramedNorEncircled
|
||||
SGR_NotOverlined
|
||||
|
||||
SGR_UnderlineColor
|
||||
SGR_UnderlineColorDefault
|
||||
|
||||
SGR_IdeogramUnderline
|
||||
SGR_IdeogramDoubleUnderline
|
||||
SGR_IdeogramOverline
|
||||
SGR_IdeogramDoubleOverline
|
||||
SGR_IdeogramStressMarking
|
||||
SGR_NoIdeogramAttributes
|
||||
|
||||
SGR_Superscript
|
||||
SGR_Subscript
|
||||
SGR_NeitherSuperscriptNorSubscript
|
||||
|
||||
SGR_ForegroundColorBrightBlack
|
||||
SGR_ForegroundColorBrightRed
|
||||
SGR_ForegroundColorBrightGreen
|
||||
SGR_ForegroundColorBrightYellow
|
||||
SGR_ForegroundColorBrightBlue
|
||||
SGR_ForegroundColorBrightMagenta
|
||||
SGR_ForegroundColorBrightCyan
|
||||
SGR_ForegroundColorBrightWhite
|
||||
|
||||
SGR_BackgroundColorBrightBlack
|
||||
SGR_BackgroundColorBrightRed
|
||||
SGR_BackgroundColorBrightGreen
|
||||
SGR_BackgroundColorBrightYellow
|
||||
SGR_BackgroundColorBrightBlue
|
||||
SGR_BackgroundColorBrightMagenta
|
||||
SGR_BackgroundColorBrightCyan
|
||||
SGR_BackgroundColorBrightWhite
|
||||
)
|
||||
167
elements/grid.go
167
elements/grid.go
@ -1,167 +0,0 @@
|
||||
package elements
|
||||
|
||||
import "image"
|
||||
import "golang.org/x/image/font"
|
||||
import "git.tebibyte.media/sashakoshka/tomo"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/input"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/default/theme"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/default/config"
|
||||
// import "git.tebibyte.media/sashakoshka/tomo/textdraw"
|
||||
import "git.tebibyte.media/sashakoshka/tomo/elements/core"
|
||||
|
||||
type gridCell struct {
|
||||
rune
|
||||
tomo.FontStyle
|
||||
background tomo.Color
|
||||
foreground tomo.Color
|
||||
clean bool
|
||||
}
|
||||
|
||||
func (cell *gridCell) initColor () {
|
||||
cell.background = tomo.ColorBackground
|
||||
cell.foreground = tomo.ColorForeground
|
||||
}
|
||||
|
||||
type gridBuffer struct {
|
||||
cells []gridCell
|
||||
stride int
|
||||
}
|
||||
|
||||
// Grid is an array of monospaced character cells. Each one has a foreground and
|
||||
// background color. It satisfies io.Writer and can be fed text with ANSI escape
|
||||
// codes.
|
||||
type Grid struct {
|
||||
*core.Core
|
||||
*core.FocusableCore
|
||||
core core.CoreControl
|
||||
|
||||
cells []gridCell
|
||||
stride int
|
||||
cellWidth int
|
||||
cellHeight int
|
||||
|
||||
cursor image.Point
|
||||
|
||||
face font.Face
|
||||
config config.Wrapped
|
||||
theme theme.Wrapped
|
||||
|
||||
onResize func ()
|
||||
}
|
||||
|
||||
func NewGrid () (element *Grid) {
|
||||
element = &Grid { }
|
||||
element.theme.Case = tomo.C("tomo", "grid")
|
||||
element.Core, element.core = core.NewCore(element, element.drawAndPush)
|
||||
element.updateFont()
|
||||
element.updateMinimumSize()
|
||||
return
|
||||
}
|
||||
|
||||
func (element *Grid) OnResize (callback func ()) {
|
||||
element.onResize = callback
|
||||
}
|
||||
|
||||
func (element *Grid) Write (data []byte) (wrote int, err error) {
|
||||
// TODO process ansi escape codes etx
|
||||
}
|
||||
|
||||
func (element *Grid) HandleMouseDown (x, y int, button input.Button) {
|
||||
|
||||
}
|
||||
|
||||
func (element *Grid) HandleMouseUp (x, y int, button input.Button) {
|
||||
|
||||
}
|
||||
|
||||
func (element *Grid) HandleKeyDown (key input.Key, modifiers input.Modifiers) {
|
||||
// TODO we need to grab shift ctrl c for copying text
|
||||
}
|
||||
|
||||
func (element *Grid) HandleKeyUp(key input.Key, modifiers input.Modifiers) { }
|
||||
|
||||
// SetTheme sets the element's theme.
|
||||
func (element *Grid) SetTheme (new tomo.Theme) {
|
||||
if new == element.theme.Theme { return }
|
||||
element.theme.Theme = new
|
||||
element.updateFont()
|
||||
element.updateMinimumSize()
|
||||
element.drawAndPush()
|
||||
}
|
||||
|
||||
// SetConfig sets the element's configuration.
|
||||
func (element *Grid) SetConfig (new tomo.Config) {
|
||||
if new == element.config.Config { return }
|
||||
element.config.Config = new
|
||||
element.updateMinimumSize()
|
||||
element.drawAndPush()
|
||||
}
|
||||
|
||||
func (element *Grid) alloc () bool {
|
||||
bounds := element.Bounds()
|
||||
width := bounds.Dx() / element.cellWidth
|
||||
height := bounds.Dy() / element.cellHeight
|
||||
unchanged :=
|
||||
width == element.stride &&
|
||||
height == len(element.cells) / element.stride
|
||||
if unchanged { return false }
|
||||
|
||||
oldCells := element.cells
|
||||
oldWidth := element.stride
|
||||
oldHeight := len(element.cells) / element.stride
|
||||
heightLarger := height < oldHeight
|
||||
|
||||
element.stride = width
|
||||
element.cells = make([]gridCell, width * height)
|
||||
|
||||
// TODO: attempt to wrap text?
|
||||
|
||||
if heightLarger {
|
||||
for index := range element.cells[oldHeight * width:] {
|
||||
element.cells[index].initColor()
|
||||
}}
|
||||
|
||||
commonHeight := height
|
||||
if heightLarger { commonHeight = oldHeight }
|
||||
for index := range element.cells[:commonHeight * width] {
|
||||
x := index % width
|
||||
if x < oldWidth {
|
||||
element.cells[index] = oldCells[x + index / oldWidth]
|
||||
} else {
|
||||
element.cells[index].initColor()
|
||||
}
|
||||
}
|
||||
|
||||
if element.onResize != nil { element.onResize() }
|
||||
return true
|
||||
}
|
||||
|
||||
func (element *Grid) updateFont () {
|
||||
element.face = element.theme.FontFace (
|
||||
tomo.FontStyleMonospace,
|
||||
tomo.FontSizeNormal)
|
||||
emSpace, _ := element.face.GlyphAdvance('M')
|
||||
metrics := element.face.Metrics()
|
||||
element.cellWidth = emSpace.Round()
|
||||
element.cellHeight = metrics.Height.Round()
|
||||
}
|
||||
|
||||
func (element *Grid) updateMinimumSize () {
|
||||
element.core.SetMinimumSize(element.cellWidth, element.cellHeight)
|
||||
}
|
||||
|
||||
func (element *Grid) state () tomo.State {
|
||||
return tomo.State {
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
func (element *Grid) drawAndPush () {
|
||||
if element.core.HasImage () {
|
||||
element.core.DamageRegion(element.draw(true))
|
||||
}
|
||||
}
|
||||
|
||||
func (element *Grid) draw (force bool) image.Rectangle {
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user