Files
Graphite/editor/src/messages/tool/tool_message_handler.rs
Keavon Chambers 58a53a995d Remake Eyedropper tool to sample pixel colors from viewport canvas (#801)
* Remake Eyedropper tool to sample pixel colors from viewport canvas

* Bug fixes

* Reorder export buttons

* Remove the larger primary/secondary ring

* Add aborting with Escape
2022-10-21 01:50:02 -07:00

229 lines
9.3 KiB
Rust

use super::utility_types::{tool_message_to_tool_type, 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 graphene::color::Color;
#[derive(Debug, Default)]
pub struct ToolMessageHandler {
tool_state: ToolFsmState,
}
impl MessageHandler<ToolMessage, (&DocumentMessageHandler, u64, &InputPreprocessorMessageHandler, &PersistentData)> for ToolMessageHandler {
#[remain::check]
fn process_message(
&mut self,
message: ToolMessage,
(document, document_id, input, persistent_data): (&DocumentMessageHandler, u64, &InputPreprocessorMessageHandler, &PersistentData),
responses: &mut VecDeque<Message>,
) {
#[remain::sorted]
match message {
// Messages
#[remain::unsorted]
ToolMessage::ActivateToolSelect => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Select }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolArtboard => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Artboard }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolNavigate => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Navigate }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolEyedropper => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Eyedropper }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolText => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Text }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolFill => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Fill }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolGradient => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Gradient }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolPath => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Path }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolPen => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Pen }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolFreehand => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Freehand }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolSpline => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Spline }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolLine => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Line }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolRectangle => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Rectangle }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolEllipse => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Ellipse }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolShape => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Shape }.into()),
#[remain::unsorted]
ToolMessage::ActivateToolImaginate => responses.push_front(ToolMessage::ActivateTool { tool_type: ToolType::Imaginate }.into()),
ToolMessage::ActivateTool { tool_type } => {
let tool_data = &mut self.tool_state.tool_data;
let document_data = &self.tool_state.document_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) {
if let Some(tool_abort_message) = tool.event_to_message_map().tool_abort {
tool.process_message(tool_abort_message, (document, document_id, document_data, input, &persistent_data.font_cache), responses);
}
if update_hints_and_cursor {
tool.process_message(ToolMessage::UpdateHints, (document, document_id, document_data, input, &persistent_data.font_cache), responses);
tool.process_message(ToolMessage::UpdateCursor, (document, document_id, document_data, input, &persistent_data.font_cache), responses);
}
}
};
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.push_back(BroadcastEvent::SelectionChanged.into());
// Send the DocumentIsDirty message to the active tool's sub-tool message handler
responses.push_back(BroadcastEvent::DocumentIsDirty.into());
// Send Properties to the frontend
tool_data.tools.get(&tool_type).unwrap().register_properties(responses, LayoutTarget::ToolOptions);
// 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);
}
ToolMessage::InitTools => {
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.push_back(FrontendMessage::TriggerRefreshBoundsOfViewports.into());
// Set initial hints and cursor
tool_data
.active_tool_mut()
.process_message(ToolMessage::UpdateHints, (document, document_id, document_data, input, &persistent_data.font_cache), responses);
tool_data
.active_tool_mut()
.process_message(ToolMessage::UpdateCursor, (document, document_id, document_data, input, &persistent_data.font_cache), responses);
}
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(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 document_data = &self.tool_state.document_tool_data;
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 {
tool.process_message(tool_message, (document, document_id, document_data, input, &persistent_data.font_cache), responses);
}
}
}
}
}
fn actions(&self) -> ActionList {
let mut list = actions!(ToolMessageDiscriminant;
ActivateToolSelect,
ActivateToolArtboard,
ActivateToolNavigate,
ActivateToolEyedropper,
ActivateToolText,
ActivateToolFill,
ActivateToolGradient,
ActivateToolPath,
ActivateToolPen,
ActivateToolFreehand,
ActivateToolSpline,
ActivateToolLine,
ActivateToolRectangle,
ActivateToolEllipse,
ActivateToolShape,
ActivateToolImaginate,
SelectRandomPrimaryColor,
ResetColors,
SwapColors,
);
list.extend(self.tool_state.tool_data.active_tool().actions());
list
}
}