PixelPaint: Rename from PaintBrush :^)

1 files changed, 132 insertions, 0 deletions

diff --git a/Applications/PixelPaint/MoveTool.cpp b/Applications/PixelPaint/MoveTool.cpp
new file mode 100644
index 0000000000..960dcc88d7
--- /dev/null
+++ b/Applications/PixelPaint/MoveTool.cpp
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "MoveTool.h"
+#include "Image.h"
+#include "ImageEditor.h"
+#include "Layer.h"
+#include <LibGUI/Action.h>
+#include <LibGUI/Menu.h>
+#include <LibGUI/Window.h>
+#include <LibGfx/Bitmap.h>
+
+namespace PixelPaint {
+
+MoveTool::MoveTool()
+{
+}
+
+MoveTool::~MoveTool()
+{
+}
+
+void MoveTool::on_mousedown(Layer& layer, GUI::MouseEvent& event, GUI::MouseEvent& original_event)
+{
+    if (event.button() != GUI::MouseButton::Left)
+        return;
+    if (!layer.rect().contains(event.position()))
+        return;
+    m_layer_being_moved = layer;
+    m_event_origin = original_event.position();
+    m_layer_origin = layer.location();
+    m_editor->window()->set_override_cursor(GUI::StandardCursor::Move);
+}
+
+void MoveTool::on_mousemove(Layer&, GUI::MouseEvent&, GUI::MouseEvent& original_event)
+{
+    if (!m_layer_being_moved)
+        return;
+    auto delta = original_event.position() - m_event_origin;
+    m_layer_being_moved->set_location(m_layer_origin.translated(delta));
+    m_editor->layers_did_change();
+}
+
+void MoveTool::on_mouseup(Layer&, GUI::MouseEvent& event, GUI::MouseEvent&)
+{
+    if (event.button() != GUI::MouseButton::Left)
+        return;
+    m_layer_being_moved = nullptr;
+    m_editor->window()->set_override_cursor(GUI::StandardCursor::None);
+}
+
+void MoveTool::on_keydown(GUI::KeyEvent& event)
+{
+    if (event.modifiers() != 0)
+        return;
+
+    auto* layer = m_editor->active_layer();
+    if (!layer)
+        return;
+
+    auto new_location = layer->location();
+
+    switch (event.key()) {
+    case Key_Up:
+        new_location.move_by(0, -1);
+        break;
+    case Key_Down:
+        new_location.move_by(0, 1);
+        break;
+    case Key_Left:
+        new_location.move_by(-1, 0);
+        break;
+    case Key_Right:
+        new_location.move_by(1, 0);
+        break;
+    default:
+        return;
+    }
+
+    layer->set_location(new_location);
+    m_editor->layers_did_change();
+}
+
+void MoveTool::on_context_menu(Layer& layer, GUI::ContextMenuEvent& event)
+{
+    if (!m_context_menu) {
+        m_context_menu = GUI::Menu::construct();
+        m_context_menu->add_action(GUI::CommonActions::make_move_to_front_action([this](auto&) {
+            m_editor->image()->move_layer_to_front(*m_context_menu_layer);
+            m_editor->layers_did_change();
+        }, m_editor));
+        m_context_menu->add_action(GUI::CommonActions::make_move_to_back_action([this](auto&) {
+            m_editor->image()->move_layer_to_back(*m_context_menu_layer);
+            m_editor->layers_did_change();
+        }, m_editor));
+        m_context_menu->add_separator();
+        m_context_menu->add_action(GUI::Action::create("Delete layer", Gfx::Bitmap::load_from_file("/res/icons/16x16/delete.png"), [this](auto&) {
+            m_editor->image()->remove_layer(*m_context_menu_layer);
+            // FIXME: This should not be done imperatively here. Perhaps a Image::Client interface that ImageEditor can implement?
+            if (m_editor->active_layer() == m_context_menu_layer)
+                m_editor->set_active_layer(nullptr);
+            m_editor->layers_did_change();
+        }, m_editor));
+    }
+    m_context_menu_layer = layer;
+    m_context_menu->popup(event.screen_position());
+}
+
+}