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https://github.com/RGBCube/serenity
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Since the vast majority of message boxes should be modal, require the parent window to be passed in, which can be nullptr for the rare case that they don't. By it being the first argument, the default arguments also don't need to be explicitly stated in most cases, and it encourages passing in a parent window handle. Fix up several message boxes that should have been modal.
286 lines
7.8 KiB
C++
286 lines
7.8 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "QSWidget.h"
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#include <AK/StringBuilder.h>
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#include <LibCore/DirIterator.h>
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#include <LibGUI/MessageBox.h>
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#include <LibGUI/Painter.h>
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#include <LibGUI/Window.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/Orientation.h>
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#include <LibGfx/Palette.h>
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QSWidget::QSWidget()
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{
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set_fill_with_background_color(false);
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}
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QSWidget::~QSWidget()
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{
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}
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void QSWidget::clear()
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{
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m_bitmap = nullptr;
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m_path = {};
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set_scale(100);
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update();
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}
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void QSWidget::flip(Gfx::Orientation orientation)
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{
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m_bitmap = m_bitmap->flipped(orientation);
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set_scale(m_scale);
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resize_window();
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}
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void QSWidget::rotate(Gfx::RotationDirection rotation_direction)
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{
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m_bitmap = m_bitmap->rotated(rotation_direction);
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set_scale(m_scale);
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resize_window();
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}
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void QSWidget::navigate(Directions direction)
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{
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if (m_path == nullptr)
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return;
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auto parts = m_path.split('/');
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parts.remove(parts.size() - 1);
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StringBuilder sb;
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sb.append("/");
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sb.join("/", parts);
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AK::String current_dir = sb.to_string();
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if (m_files_in_same_dir.is_empty()) {
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Core::DirIterator iterator(current_dir, Core::DirIterator::Flags::SkipDots);
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while (iterator.has_next()) {
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String file = iterator.next_full_path();
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if (!Gfx::Bitmap::is_path_a_supported_image_format(file))
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continue;
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m_files_in_same_dir.append(file);
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}
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}
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auto current_index = m_files_in_same_dir.find_first_index(m_path);
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if (!current_index.has_value()) {
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return;
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}
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size_t index = current_index.value();
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if (direction == Directions::Back) {
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if (index == 0) {
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GUI::MessageBox::show(window(), String::format("This is the first file.", index), "Cannot open image", GUI::MessageBox::Type::Error);
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return;
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}
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index--;
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} else if (direction == Directions::Forward) {
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if (index == m_files_in_same_dir.size() - 1) {
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GUI::MessageBox::show(window(), String::format("This is the last file.", index), "Cannot open image", GUI::MessageBox::Type::Error);
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return;
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}
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index++;
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} else if (direction == Directions::First) {
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index = 0;
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} else if (direction == Directions::Last) {
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index = m_files_in_same_dir.size() - 1;
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}
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this->load_from_file(m_files_in_same_dir.at(index));
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}
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void QSWidget::set_scale(int scale)
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{
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if (m_bitmap.is_null())
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return;
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if (m_scale == scale) {
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update();
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return;
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}
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if (scale < 10)
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scale = 10;
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if (scale > 1000)
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scale = 1000;
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if (scale == 100)
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m_pan_origin = { 0, 0 };
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m_scale = scale;
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float scale_factor = (float)m_scale / 100.0f;
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Gfx::IntSize new_size;
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new_size.set_width(m_bitmap->width() * scale_factor);
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new_size.set_height(m_bitmap->height() * scale_factor);
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m_bitmap_rect.set_size(new_size);
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if (on_scale_change)
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on_scale_change(m_scale, m_bitmap_rect);
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relayout();
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}
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void QSWidget::relayout()
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{
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if (m_bitmap.is_null())
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return;
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float scale_factor = (float)m_scale / 100.0f;
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Gfx::IntSize new_size = m_bitmap_rect.size();
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Gfx::IntPoint new_location;
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new_location.set_x((width() / 2) - (new_size.width() / 2) - (m_pan_origin.x() * scale_factor));
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new_location.set_y((height() / 2) - (new_size.height() / 2) - (m_pan_origin.y() * scale_factor));
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m_bitmap_rect.set_location(new_location);
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update();
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}
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void QSWidget::resize_event(GUI::ResizeEvent& event)
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{
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relayout();
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GUI::Widget::resize_event(event);
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}
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void QSWidget::doubleclick_event(GUI::MouseEvent&)
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{
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on_doubleclick();
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}
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void QSWidget::paint_event(GUI::PaintEvent& event)
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{
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Frame::paint_event(event);
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GUI::Painter painter(*this);
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painter.add_clip_rect(event.rect());
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painter.add_clip_rect(frame_inner_rect());
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painter.fill_rect_with_checkerboard(frame_inner_rect(), { 8, 8 }, palette().base().darkened(0.9), palette().base());
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if (!m_bitmap.is_null())
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painter.draw_scaled_bitmap(m_bitmap_rect, *m_bitmap, m_bitmap->rect());
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}
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void QSWidget::mousedown_event(GUI::MouseEvent& event)
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{
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if (event.button() != GUI::MouseButton::Left)
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return;
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m_click_position = event.position();
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m_saved_pan_origin = m_pan_origin;
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}
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void QSWidget::mouseup_event(GUI::MouseEvent& event)
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{
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UNUSED_PARAM(event);
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}
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void QSWidget::mousemove_event(GUI::MouseEvent& event)
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{
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if (!(event.buttons() & GUI::MouseButton::Left))
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return;
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auto delta = event.position() - m_click_position;
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float scale_factor = (float)m_scale / 100.0f;
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m_pan_origin = m_saved_pan_origin.translated(
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-delta.x() / scale_factor,
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-delta.y() / scale_factor);
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relayout();
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}
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void QSWidget::mousewheel_event(GUI::MouseEvent& event)
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{
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int new_scale = m_scale - event.wheel_delta() * 10;
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if (new_scale < 10)
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new_scale = 10;
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if (new_scale > 1000)
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new_scale = 1000;
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if (new_scale == m_scale) {
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return;
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}
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auto old_scale_factor = (float)m_scale / 100.0f;
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auto new_scale_factor = (float)new_scale / 100.0f;
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auto focus_point = Gfx::FloatPoint(
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m_pan_origin.x() - ((float)event.x() - (float)width() / 2.0) / old_scale_factor,
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m_pan_origin.y() - ((float)event.y() - (float)height() / 2.0) / old_scale_factor);
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m_pan_origin = Gfx::FloatPoint(
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focus_point.x() - new_scale_factor / old_scale_factor * (focus_point.x() - m_pan_origin.x()),
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focus_point.y() - new_scale_factor / old_scale_factor * (focus_point.y() - m_pan_origin.y()));
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set_scale(new_scale);
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}
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void QSWidget::load_from_file(const String& path)
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{
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auto bitmap = Gfx::Bitmap::load_from_file(path);
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if (!bitmap) {
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GUI::MessageBox::show(window(), String::format("Failed to open %s", path.characters()), "Cannot open image", GUI::MessageBox::Type::Error);
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return;
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}
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m_path = path;
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m_bitmap = bitmap;
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m_scale = -1;
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set_scale(100);
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}
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void QSWidget::drop_event(GUI::DropEvent& event)
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{
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event.accept();
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if (on_drop)
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on_drop(event);
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}
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void QSWidget::resize_window()
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{
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if (window()->is_fullscreen())
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return;
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if (!m_bitmap)
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return;
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auto new_size = m_bitmap->size();
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if (new_size.width() < 300)
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new_size.set_width(300);
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if (new_size.height() < 200)
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new_size.set_height(200);
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new_size.set_height(new_size.height() + m_toolbar_height);
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window()->resize(new_size);
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}
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