mirror of
https://github.com/aseprite/aseprite.git
synced 2025-04-17 17:42:51 +00:00
3103f54131
- Renamed Editor::offset() with padding() - Changed padding size (and added Editor::calcExtraPadding() function) - Added Zoom::linearScale() and Zoom::fromLinearScale()
109 lines
2.2 KiB
C++
109 lines
2.2 KiB
C++
// Aseprite
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// Copyright (C) 2001-2015 David Capello
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//
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License version 2 as
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// published by the Free Software Foundation.
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "app/ui/editor/zooming_state.h"
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#include "app/app.h"
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#include "app/ui/editor/editor.h"
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#include "app/ui/status_bar.h"
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#include "doc/sprite.h"
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#include "gfx/rect.h"
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#include "she/display.h"
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#include "ui/manager.h"
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#include "ui/message.h"
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#include "ui/system.h"
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#include "ui/theme.h"
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#include "ui/view.h"
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#include <cmath>
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namespace app {
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using namespace ui;
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ZoomingState::ZoomingState()
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: m_startZoom(1, 1)
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, m_moved(false)
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{
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}
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ZoomingState::~ZoomingState()
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{
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}
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bool ZoomingState::onMouseDown(Editor* editor, MouseMessage* msg)
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{
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m_startPos = msg->position();
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m_startZoom = editor->zoom();
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editor->captureMouse();
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return true;
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}
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bool ZoomingState::onMouseUp(Editor* editor, MouseMessage* msg)
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{
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if (!m_moved) {
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render::Zoom zoom = editor->zoom();
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if (msg->left())
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zoom.in();
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else if (msg->right())
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zoom.out();
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editor->setZoomAndCenterInMouse(
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zoom, msg->position(), Editor::ZoomBehavior::MOUSE);
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}
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editor->backToPreviousState();
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editor->releaseMouse();
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return true;
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}
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bool ZoomingState::onMouseMove(Editor* editor, MouseMessage* msg)
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{
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gfx::Point pt = (msg->position() - m_startPos);
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int threshold = 8 * guiscale() * editor->getManager()->getDisplay()->scale();
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if (m_moved || std::sqrt(pt.x*pt.x + pt.y*pt.y) > threshold) {
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m_moved = true;
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int newScale = m_startZoom.linearScale() + pt.x / threshold;
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render::Zoom newZoom = render::Zoom::fromLinearScale(newScale);
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editor->setZoomAndCenterInMouse(
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newZoom, m_startPos, Editor::ZoomBehavior::MOUSE);
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}
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return true;
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}
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bool ZoomingState::onSetCursor(Editor* editor, const gfx::Point& mouseScreenPos)
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{
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editor->showMouseCursor(kMagnifierCursor);
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return true;
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}
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bool ZoomingState::onKeyDown(Editor* editor, KeyMessage* msg)
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{
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return false;
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}
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bool ZoomingState::onKeyUp(Editor* editor, KeyMessage* msg)
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{
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return false;
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}
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bool ZoomingState::onUpdateStatusBar(Editor* editor)
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{
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return false;
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}
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} // namespace app
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