102 lines
2.6 KiB
Go
102 lines
2.6 KiB
Go
// gomuks - A terminal Matrix client written in Go.
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// Copyright (C) 2020 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package html
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import (
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"fmt"
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"go.mau.fi/mauview"
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"go.mau.fi/tcell"
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)
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type BaseEntity struct {
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// The HTML tag of this entity.
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Tag string
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// Style for this entity.
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Style tcell.Style
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// Whether or not this is a block-type entity.
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Block bool
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// Height to use for entity if both text and children are empty.
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DefaultHeight int
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prevWidth int
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startX int
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height int
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}
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// AdjustStyle changes the style of this text entity.
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func (be *BaseEntity) AdjustStyle(fn AdjustStyleFunc) Entity {
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be.Style = fn(be.Style)
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return be
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}
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func (be *BaseEntity) IsEmpty() bool {
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return false
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}
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// IsBlock returns whether or not this is a block-type entity.
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func (be *BaseEntity) IsBlock() bool {
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return be.Block
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}
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// GetTag returns the HTML tag of this entity.
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func (be *BaseEntity) GetTag() string {
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return be.Tag
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}
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// Height returns the render height of this entity.
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func (be *BaseEntity) Height() int {
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return be.height
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}
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func (be *BaseEntity) getStartX() int {
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return be.startX
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}
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// Clone creates a copy of this base entity.
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func (be *BaseEntity) Clone() Entity {
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return &BaseEntity{
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Tag: be.Tag,
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Style: be.Style,
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Block: be.Block,
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DefaultHeight: be.DefaultHeight,
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}
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}
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func (be *BaseEntity) PlainText() string {
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return ""
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}
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// String returns a textual representation of this BaseEntity struct.
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func (be *BaseEntity) String() string {
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return fmt.Sprintf(`&html.BaseEntity{Tag="%s", Style=%d, Block=%t, startX=%d, height=%d}`,
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be.Tag, be.Style, be.Block, be.startX, be.height)
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}
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// CalculateBuffer prepares this entity for rendering with the given parameters.
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func (be *BaseEntity) CalculateBuffer(width, startX int, bare bool) int {
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be.height = be.DefaultHeight
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be.startX = startX
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if be.Block {
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be.startX = 0
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}
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return be.startX
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}
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func (be *BaseEntity) Draw(screen mauview.Screen) {
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panic("Called Draw() of BaseEntity")
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}
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