Graphite/editor/src/messages/tool/tool_message_handler.rs

298 lines
12 KiB
Rust

use super::common_functionality::overlay_renderer::OverlayRenderer;
use super::common_functionality::shape_editor::ShapeState;
use super::utility_types::{tool_message_to_tool_type, ToolActionHandlerData, ToolFsmState};
use crate::application::generate_uuid;
use crate::messages::layout::utility_types::layout_widget::PropertyHolder;
use crate::messages::layout::utility_types::misc::LayoutTarget;
use crate::messages::portfolio::utility_types::PersistentData;
use crate::messages::prelude::*;
use crate::messages::tool::utility_types::ToolType;
use crate::node_graph_executor::NodeGraphExecutor;
use document_legacy::layers::style::RenderData;
use graphene_core::raster::color::Color;
#[derive(Debug, Default)]
pub struct ToolMessageHandler {
pub tool_state: ToolFsmState,
pub transform_layer_handler: TransformLayerMessageHandler,
pub shape_overlay: OverlayRenderer,
pub shape_editor: ShapeState,
}
impl MessageHandler<ToolMessage, (&DocumentMessageHandler, u64, &InputPreprocessorMessageHandler, &PersistentData, &NodeGraphExecutor)> for ToolMessageHandler {
#[remain::check]
fn process_message(
&mut self,
message: ToolMessage,
responses: &mut VecDeque<Message>,
(document, document_id, input, persistent_data, node_graph): (&DocumentMessageHandler, u64, &InputPreprocessorMessageHandler, &PersistentData, &NodeGraphExecutor),
) {
let render_data = RenderData::new(&persistent_data.font_cache, document.view_mode, None);
#[remain::sorted]
match message {
// Messages
#[remain::unsorted]
ToolMessage::TransformLayer(message) => self
.transform_layer_handler
.process_message(message, responses, (document, input, &render_data, &self.tool_state.tool_data, &mut self.shape_editor)),
#[remain::unsorted]
ToolMessage::ActivateToolSelect => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Select }),
#[remain::unsorted]
ToolMessage::ActivateToolArtboard => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Artboard }),
#[remain::unsorted]
ToolMessage::ActivateToolNavigate => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Navigate }),
#[remain::unsorted]
ToolMessage::ActivateToolEyedropper => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Eyedropper }),
#[remain::unsorted]
ToolMessage::ActivateToolText => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Text }),
#[remain::unsorted]
ToolMessage::ActivateToolFill => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Fill }),
#[remain::unsorted]
ToolMessage::ActivateToolGradient => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Gradient }),
#[remain::unsorted]
ToolMessage::ActivateToolPath => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Path }),
#[remain::unsorted]
ToolMessage::ActivateToolPen => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Pen }),
#[remain::unsorted]
ToolMessage::ActivateToolFreehand => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Freehand }),
#[remain::unsorted]
ToolMessage::ActivateToolSpline => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Spline }),
#[remain::unsorted]
ToolMessage::ActivateToolLine => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Line }),
#[remain::unsorted]
ToolMessage::ActivateToolRectangle => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Rectangle }),
#[remain::unsorted]
ToolMessage::ActivateToolEllipse => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Ellipse }),
#[remain::unsorted]
ToolMessage::ActivateToolShape => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Shape }),
#[remain::unsorted]
ToolMessage::ActivateToolBrush => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Brush }),
#[remain::unsorted]
ToolMessage::ActivateToolImaginate => responses.add_front(ToolMessage::ActivateTool { tool_type: ToolType::Imaginate }),
ToolMessage::ActivateTool { tool_type } => {
let tool_data = &mut self.tool_state.tool_data;
let old_tool = tool_data.active_tool_type;
// Do nothing if switching to the same tool
if tool_type == old_tool {
return;
}
// Send the old and new tools a transition to their FSM Abort states
let mut send_abort_to_tool = |tool_type, update_hints_and_cursor: bool| {
if let Some(tool) = tool_data.tools.get_mut(&tool_type) {
let mut data = ToolActionHandlerData {
document,
document_id,
global_tool_data: &self.tool_state.document_tool_data,
input,
render_data: &render_data,
shape_overlay: &mut self.shape_overlay,
shape_editor: &mut self.shape_editor,
node_graph,
};
if let Some(tool_abort_message) = tool.event_to_message_map().tool_abort {
tool.process_message(tool_abort_message, responses, &mut data);
}
if update_hints_and_cursor {
if self.transform_layer_handler.is_transforming() {
self.transform_layer_handler.hints(responses);
} else {
tool.process_message(ToolMessage::UpdateHints, responses, &mut data);
}
tool.process_message(ToolMessage::UpdateCursor, responses, &mut data);
}
}
};
send_abort_to_tool(tool_type, true);
send_abort_to_tool(old_tool, false);
// Unsubscribe old tool from the broadcaster
tool_data.tools.get(&tool_type).unwrap().deactivate(responses);
// Store the new active tool
tool_data.active_tool_type = tool_type;
// Subscribe new tool
tool_data.tools.get(&tool_type).unwrap().activate(responses);
// Send the SelectionChanged message to the active tool, this will ensure the selection is updated
responses.add(BroadcastEvent::SelectionChanged);
// Send the DocumentIsDirty message to the active tool's sub-tool message handler
responses.add(BroadcastEvent::DocumentIsDirty);
// Send tool options to the frontend
responses.add(ToolMessage::RefreshToolOptions);
// Notify the frontend about the new active tool to be displayed
tool_data.register_properties(responses, LayoutTarget::ToolShelf);
}
ToolMessage::DeactivateTools => {
let tool_data = &mut self.tool_state.tool_data;
tool_data.tools.get(&tool_data.active_tool_type).unwrap().deactivate(responses);
// Unsubscribe the transform layer to selection change events
let message = Box::new(TransformLayerMessage::SelectionChanged.into());
let on = BroadcastEvent::SelectionChanged;
responses.add(BroadcastMessage::UnsubscribeEvent { message, on });
}
ToolMessage::InitTools => {
// Subscribe the transform layer to selection change events
let send = Box::new(TransformLayerMessage::SelectionChanged.into());
let on = BroadcastEvent::SelectionChanged;
responses.add(BroadcastMessage::SubscribeEvent { send, on });
let tool_data = &mut self.tool_state.tool_data;
let document_data = &self.tool_state.document_tool_data;
let active_tool = &tool_data.active_tool_type;
// Subscribe tool to broadcast messages
tool_data.tools.get(active_tool).unwrap().activate(responses);
// Register initial properties
tool_data.tools.get(active_tool).unwrap().register_properties(responses, LayoutTarget::ToolOptions);
// Notify the frontend about the initial active tool
tool_data.register_properties(responses, LayoutTarget::ToolShelf);
// Notify the frontend about the initial working colors
document_data.update_working_colors(responses);
responses.add(FrontendMessage::TriggerRefreshBoundsOfViewports);
let mut data = ToolActionHandlerData {
document,
document_id,
global_tool_data: &self.tool_state.document_tool_data,
input,
render_data: &render_data,
shape_overlay: &mut self.shape_overlay,
shape_editor: &mut self.shape_editor,
node_graph,
};
// Set initial hints and cursor
tool_data.active_tool_mut().process_message(ToolMessage::UpdateHints, responses, &mut data);
tool_data.active_tool_mut().process_message(ToolMessage::UpdateCursor, responses, &mut data);
}
ToolMessage::RefreshToolOptions => {
let tool_data = &mut self.tool_state.tool_data;
tool_data.tools.get(&tool_data.active_tool_type).unwrap().register_properties(responses, LayoutTarget::ToolOptions);
}
ToolMessage::ResetColors => {
let document_data = &mut self.tool_state.document_tool_data;
document_data.primary_color = Color::BLACK;
document_data.secondary_color = Color::WHITE;
document_data.update_working_colors(responses);
}
ToolMessage::SelectPrimaryColor { color } => {
let document_data = &mut self.tool_state.document_tool_data;
document_data.primary_color = color;
self.tool_state.document_tool_data.update_working_colors(responses);
}
ToolMessage::SelectRandomPrimaryColor => {
// Select a random primary color (rgba) based on an UUID
let document_data = &mut self.tool_state.document_tool_data;
let random_number = generate_uuid();
let r = (random_number >> 16) as u8;
let g = (random_number >> 8) as u8;
let b = random_number as u8;
let random_color = Color::from_rgba8_srgb(r, g, b, 255);
document_data.primary_color = random_color;
document_data.update_working_colors(responses);
}
ToolMessage::SelectSecondaryColor { color } => {
let document_data = &mut self.tool_state.document_tool_data;
document_data.secondary_color = color;
document_data.update_working_colors(responses);
}
ToolMessage::SwapColors => {
let document_data = &mut self.tool_state.document_tool_data;
std::mem::swap(&mut document_data.primary_color, &mut document_data.secondary_color);
document_data.update_working_colors(responses);
}
// Sub-messages
#[remain::unsorted]
tool_message => {
let tool_type = match &tool_message {
ToolMessage::UpdateCursor | ToolMessage::UpdateHints => self.tool_state.tool_data.active_tool_type,
tool_message => tool_message_to_tool_type(tool_message),
};
let tool_data = &mut self.tool_state.tool_data;
if let Some(tool) = tool_data.tools.get_mut(&tool_type) {
if tool_type == tool_data.active_tool_type {
let mut data = ToolActionHandlerData {
document,
document_id,
global_tool_data: &self.tool_state.document_tool_data,
input,
render_data: &render_data,
shape_overlay: &mut self.shape_overlay,
shape_editor: &mut self.shape_editor,
node_graph,
};
if matches!(tool_message, ToolMessage::UpdateHints) {
if self.transform_layer_handler.is_transforming() {
self.transform_layer_handler.hints(responses);
} else {
tool.process_message(ToolMessage::UpdateHints, responses, &mut data)
}
} else {
tool.process_message(tool_message, responses, &mut data);
}
}
}
}
}
}
fn actions(&self) -> ActionList {
let mut list = actions!(ToolMessageDiscriminant;
ActivateToolSelect,
ActivateToolArtboard,
ActivateToolNavigate,
ActivateToolEyedropper,
ActivateToolText,
ActivateToolFill,
ActivateToolGradient,
ActivateToolPath,
ActivateToolPen,
ActivateToolFreehand,
ActivateToolSpline,
ActivateToolLine,
ActivateToolRectangle,
ActivateToolEllipse,
ActivateToolShape,
ActivateToolBrush,
ActivateToolImaginate,
SelectRandomPrimaryColor,
ResetColors,
SwapColors,
);
list.extend(self.tool_state.tool_data.active_tool().actions());
list.extend(self.transform_layer_handler.actions());
list
}
}