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PixelPaint: Include Guides in the ImageEditor

Browse source 
The ImageEditor knows about its Guides, how to draw them and exposes
ways to manipulate them.
This commit is contained in:
Tobias Christiansen 2021-08-01 15:54:26 +02:00 • committed by Ali Mohammad Pur
parent 7e01d06226
commit a717caa4b7
2 changed files with 21 additions and 1 deletions
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11
Userland/Applications/PixelPaint/ImageEditor.cpp
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@ -83,6 +83,16 @@ void ImageEditor::paint_event(GUI::PaintEvent& event)
painter.draw_rect(enclosing_int_rect(image_rect_to_editor_rect(m_active_layer->relative_rect())).inflated(2, 2), Color::Black);
}
for (auto& guide : m_guides) {
if (guide.orientation() == Guide::Orientation::Horizontal) {
int y_coordinate = (int)image_position_to_editor_position({ 0.0f, guide.offset() }).y();
painter.draw_line({ 0, y_coordinate }, { rect().width(), y_coordinate }, Color::Cyan, 1, Gfx::Painter::LineStyle::Dashed, Color::LightGray);
} else if (guide.orientation() == Guide::Orientation::Vertical) {
int x_coordinate = (int)image_position_to_editor_position({ guide.offset(), 0.0f }).x();
painter.draw_line({ x_coordinate, 0 }, { x_coordinate, rect().height() }, Color::Cyan, 1, Gfx::Painter::LineStyle::Dashed, Color::LightGray);
}
}
if (!m_selection.is_empty())
m_selection.paint(painter);
}
@ -424,5 +434,4 @@ void ImageEditor::image_select_layer(Layer* layer)
{
set_active_layer(layer);
}
}

11
Userland/Applications/PixelPaint/ImageEditor.h
View file

@ -6,6 +6,7 @@
#pragma once
#include "Guide.h"
#include "Image.h"
#include "Selection.h"
#include <LibGUI/Frame.h>
@ -38,6 +39,12 @@ public:
bool undo();
bool redo();
void add_guide(NonnullRefPtr<Guide> guide) { m_guides.append(guide); }
void remove_guide(Guide const& guide)
{
m_guides.remove_first_matching([&](auto& entry) { return &guide == entry.ptr(); });
}
void layers_did_change();
Layer* layer_at_editor_position(Gfx::IntPoint const&);
@ -77,6 +84,8 @@ public:
Gfx::FloatPoint image_position_to_editor_position(Gfx::IntPoint const&) const;
Gfx::FloatPoint editor_position_to_image_position(Gfx::IntPoint const&) const;
NonnullRefPtrVector<Guide> const& guides() const { return m_guides; }
private:
explicit ImageEditor(NonnullRefPtr<Image>);
@ -106,6 +115,8 @@ private:
RefPtr<Layer> m_active_layer;
OwnPtr<GUI::UndoStack> m_undo_stack;
NonnullRefPtrVector<Guide> m_guides;
Tool* m_active_tool { nullptr };
Color m_primary_color { Color::Black };