2024-05-09 01:02:33 -07:00
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package sectr
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2024-05-10 16:20:50 -07:00
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UI_LayoutDirectionX :: enum(i32) {
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Left_To_Right,
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Right_To_Left,
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}
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UI_LayoutDirectionY :: enum(i32) {
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Top_To_Bottom,
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Bottom_To_Top,
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}
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2024-05-09 01:02:33 -07:00
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UI_LayoutSide :: struct {
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// using _ : struct {
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top, bottom : UI_Scalar,
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left, right : UI_Scalar,
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// }
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}
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// Desiered constraints on the UI_Box.
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UI_Layout :: struct {
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anchor : Range2,
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alignment : Vec2,
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text_alignment : Vec2,
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font_size : f32,
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margins : UI_LayoutSide,
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padding : UI_LayoutSide,
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// TODO(Ed): We cannot support individual corners unless we add it to raylib (or finally change the rendering backend)
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corner_radii : [Corner.Count]f32,
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border_width : UI_Scalar,
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// Position in relative coordinate space.
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// If the box's flags has Fixed_Position, then this will be its aboslute position in the relative coordinate space
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pos : Vec2,
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size : Range2,
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// TODO(Ed) : Should thsi just always be WS_Pos for workspace UI?
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// (We can union either varient and just know based on checking if its the screenspace UI)
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// If the box is a child of the root parent, its automatically in world space and thus will use the tile_pos.
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// tile_pos : WS_Pos,
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}
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2024-05-09 23:08:36 -07:00
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// TODO(Ed): Change this to layout flags? Everything so far is just related to auto-layout
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UI_StyleFlag :: enum u32 {
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// Will perform scissor pass on children to their parent's bounds
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// (Specified in the parent)
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Clip_Children_To_Bounds,
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// Enforces the box will always remain in a specific position relative to the parent.
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// Overriding the anchors and margins.
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Fixed_Position_X,
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Fixed_Position_Y,
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// Enforces box will always be within the bounds of the parent box.
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Clamp_Position_X,
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Clamp_Position_Y,
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// Enroces the widget will maintain its size reguardless of any constraints
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// Will override parent constraints (use the size.min.xy to specify the width & height)
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Fixed_Width,
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Fixed_Height,
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// TODO(Ed): Implement this!
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// Enforces the widget will have a width specified as a ratio of its height (use the size.min/max.x to specify the scalar)
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// If you wish for the width to stay fixed couple with the Fixed_Width flag
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Scale_Width_By_Height_Ratio,
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// Enforces the widget will have a height specified as a ratio of its width (use the size.min/max.y to specify the scalar)
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// If you wish for the height to stay fixed couple with the Fixed_Height flag
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Scale_Height_By_Width_Ratio,
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// Sets the (0, 0) position of the child box to the parents anchor's center (post-margins bounds)
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// By Default, the origin is at the top left of the anchor's bounds
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Origin_At_Anchor_Center,
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// TODO(Ed): Implement this!
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// For this to work, the children must have a minimum size set & their size overall must be greater than the parent's minimum size
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Size_To_Content,
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// Will size the box to its text.
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Size_To_Text,
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// TODO(Ed): Implement this!
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Text_Wrap,
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Count,
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}
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UI_StyleFlags :: bit_set[UI_StyleFlag; u32]
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UI_StylePreset :: enum u32 {
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Default,
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Disabled,
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Hot,
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Active,
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Count,
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}
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UI_Style :: struct {
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flags : UI_StyleFlags,
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bg_color : Color,
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border_color : Color,
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// TODO(Ed) : Add support for this eventually
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blur_size : f32,
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font : FontID,
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// TODO(Ed): Should this get moved to the layout struct? Techncially font-size is mainly
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text_color : Color,
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cursor : UI_Cursor,
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2024-05-09 23:08:36 -07:00
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// TODO(Ed): Should layout be separate from style?
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// It technically entirely makes up style flags
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// and the only thing shared I guess is the font determining the measured text size + transition time
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// Technically we can provide a separate transition time option just for layout...
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using layout : UI_Layout,
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// Used with style, prev_style, and style_delta to produce a simple interpolated animation
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// Applied in the layout pass & the rendering pass for their associated fields.
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transition_time : f32,
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}
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UI_StyleTheme :: struct #raw_union {
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array : [UI_StylePreset.Count] UI_Style,
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using styles : struct {
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default, disabled, hot, active : UI_Style,
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}
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}
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UI_TextAlign :: enum u32 {
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Left,
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Center,
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Right,
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Count
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}
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to_ui_layoutside :: #force_inline proc( pixels : f32 ) -> UI_LayoutSide { return { pixels, pixels, pixels, pixels } }
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to_ui_styletheme :: #force_inline proc( style : UI_Style ) -> UI_StyleTheme { return { styles = {style, style, style, style} } }
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ui_style_peek :: #force_inline proc( box_state : UI_StylePreset ) -> UI_Style { return stack_peek_ref( & get_state().ui_context.theme_stack ).array[box_state] }
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ui_style_ref :: #force_inline proc( box_state : UI_StylePreset ) -> (^ UI_Style) { return & stack_peek_ref( & get_state().ui_context.theme_stack ).array[box_state] }
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ui_style_set :: #force_inline proc ( style : UI_Style, box_state : UI_StylePreset ) { stack_peek_ref( & get_state().ui_context.theme_stack ).array[box_state] = style }
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ui_style_set_layout :: #force_inline proc ( layout : UI_Layout, preset : UI_StylePreset ) { stack_peek_ref( & get_state().ui_context.theme_stack ).array[preset].layout = layout }
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ui_style_theme_push :: #force_inline proc( preset : UI_StyleTheme ) { push( & get_state().ui_context.theme_stack, preset ) }
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ui_style_theme_pop :: #force_inline proc() { pop( & get_state().ui_context.theme_stack ) }
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@(deferred_none = ui_style_theme_pop)
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ui_style_theme :: #force_inline proc( preset : UI_StyleTheme ) { ui_style_theme_push( preset ) }
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ui_style_theme_peek :: #force_inline proc() -> UI_StyleTheme { return stack_peek( & get_state().ui_context.theme_stack ) }
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ui_style_theme_ref :: #force_inline proc() -> (^ UI_StyleTheme) { return stack_peek_ref( & get_state().ui_context.theme_stack ) }
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@(deferred_none = ui_style_theme_pop)
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ui_theme_via_style :: #force_inline proc ( style : UI_Style ) { ui_style_theme_push( UI_StyleTheme { styles = { style, style, style, style } }) }
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ui_style_theme_set_layout :: proc ( layout : UI_Layout ) {
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for & preset in stack_peek_ref( & get_state().ui_context.theme_stack ).array {
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preset.layout = layout
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}
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}
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ui_style_theme_layout_push :: proc ( layout : UI_Layout ) {
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ui := get_state().ui_context
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ui_style_theme_push( stack_peek( & ui.theme_stack) )
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ui_style_theme_set_layout(layout)
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}
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@(deferred_none = ui_style_theme_pop)
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ui_style_theme_layout :: #force_inline proc( layout : UI_Layout ) { ui_style_theme_layout_push(layout) }
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