diff options
author | Bent Bisballe Nyeng <deva@aasimon.org> | 2020-12-29 16:09:43 +0100 |
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committer | Bent Bisballe Nyeng <deva@aasimon.org> | 2020-12-29 16:39:54 +0100 |
commit | 645250e1cd8ce9bc1faea599df7a1b05836bfeb8 (patch) | |
tree | c6311afab3900d2dd2aecbfbe1ac348d0e48c428 /plugingui/layout.cc | |
parent | dce64999d3325c5b55499d6ba657066efa48fbff (diff) |
Split UI code into application/plugin UI and UI library.
Diffstat (limited to 'plugingui/layout.cc')
-rw-r--r-- | plugingui/layout.cc | 386 |
1 files changed, 0 insertions, 386 deletions
diff --git a/plugingui/layout.cc b/plugingui/layout.cc deleted file mode 100644 index 61e4f77..0000000 --- a/plugingui/layout.cc +++ /dev/null @@ -1,386 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/*************************************************************************** - * layout.cc - * - * Sat Mar 21 15:12:36 CET 2015 - * Copyright 2015 Bent Bisballe Nyeng - * deva@aasimon.org - ****************************************************************************/ - -/* - * This file is part of DrumGizmo. - * - * DrumGizmo is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 3 of the License, or - * (at your option) any later version. - * - * DrumGizmo is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public License - * along with DrumGizmo; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - */ -#include "layout.h" - -#include "widget.h" - -#include <algorithm> - -namespace GUI -{ - -LayoutItem::LayoutItem() - : parent(nullptr) -{ -} - -LayoutItem::~LayoutItem() -{ - setLayoutParent(nullptr); // Will disconnect from layout if any. -} - -void LayoutItem::setLayoutParent(Layout* p) -{ - if(this->parent) - { - this->parent->removeItem(this); - } - - this->parent = p; -} - -Layout::Layout(LayoutItem* parent) : parent(parent) -{ - auto widget = dynamic_cast<Widget*>(parent); - if(widget) - { - CONNECT(widget, sizeChangeNotifier, this, &Layout::sizeChanged); - } -} - -void Layout::addItem(LayoutItem* item) -{ - items.push_back(item); - item->setLayoutParent(this); - layout(); -} - -void Layout::removeItem(LayoutItem* item) -{ - auto new_end = std::remove(items.begin(), items.end(), item); - items.erase(new_end, items.end()); - - layout(); -} - -void Layout::sizeChanged(int width, int height) -{ - layout(); -} - -// -// BoxLayout -// - -BoxLayout::BoxLayout(LayoutItem* parent) : Layout(parent) -{ -} - -void BoxLayout::setResizeChildren(bool resizeChildren) -{ - this->resizeChildren = resizeChildren; - layout(); -} - -void BoxLayout::setSpacing(size_t spacing) -{ - this->spacing = spacing; - layout(); -} - -// -// VBoxLayout -// - -VBoxLayout::VBoxLayout(LayoutItem* parent) - : BoxLayout(parent) - , align(HAlignment::center) -{ -} - -void VBoxLayout::layout() -{ - size_t y = 0; - size_t w = parent->width(); - // size_t h = parent->height() / items.size(); - - LayoutItemList::iterator i = items.begin(); - while(i != items.end()) - { - LayoutItem* item = *i; - - if(resizeChildren) - { - auto num_items = items.size(); - auto empty_space = (num_items - 1) * spacing; - auto available_space = parent->height(); - - if(available_space >= empty_space) - { - auto item_height = (available_space - empty_space) / num_items; - item->resize(w, item_height); - } - else - { - // TODO: Should this case be handled differently? - item->resize(w, 0); - } - } - - size_t x = 0; - switch(align) - { - case HAlignment::left: - x = 0; - break; - case HAlignment::center: - x = (w / 2) - (item->width() / 2); - break; - case HAlignment::right: - x = w - item->width(); - break; - } - - item->move(x, y); - y += item->height() + spacing; - ++i; - } -} - -void VBoxLayout::setHAlignment(HAlignment alignment) -{ - align = alignment; -} - -// -// HBoxLayout -// - -HBoxLayout::HBoxLayout(LayoutItem* parent) - : BoxLayout(parent) - , align(VAlignment::center) -{ -} - -void HBoxLayout::layout() -{ - if(items.empty()) - { - return; - } - - // size_t w = parent->width() / items.size(); - size_t h = parent->height(); - size_t x = 0; - - LayoutItemList::iterator i = items.begin(); - while(i != items.end()) - { - LayoutItem* item = *i; - if(resizeChildren) - { - auto num_items = items.size(); - auto empty_space = (num_items - 1) * spacing; - auto available_space = parent->width(); - - if(available_space >= empty_space) - { - auto item_width = (available_space - empty_space) / num_items; - item->resize(item_width, h); - } - else - { - // TODO: Should this case be handled differently? - item->resize(0, h); - } - - item->move(x, 0); - } - else - { - size_t y = 0; - switch(align) - { - case VAlignment::top: - y = 0; - break; - case VAlignment::center: - y = (h / 2) - (item->height() / 2); - break; - case VAlignment::bottom: - y = h - item->height(); - break; - } - - int diff = 0; // w - item->width(); - item->move(x + diff / 2, y); - } - x += item->width() + spacing; - ++i; - } -} - -void HBoxLayout::setVAlignment(VAlignment alignment) -{ - align = alignment; -} - -// -// GridLayout -// - -GridLayout::GridLayout(LayoutItem* parent, std::size_t number_of_columns, - std::size_t number_of_rows) - : BoxLayout(parent) - , number_of_columns(number_of_columns) - , number_of_rows(number_of_rows) -{ -} - -void GridLayout::removeItem(LayoutItem* item) -{ - // manually remove from grid_ranges as remove_if doesn't work on an - // unordered_map. - auto it = grid_ranges.begin(); - while(it != grid_ranges.end()) - { - if(it->first == item) - { - it = grid_ranges.erase(it); - } - else - { - ++it; - } - } - - Layout::removeItem(item); -} - -void GridLayout::layout() -{ - if(grid_ranges.empty()) - { - return; - } - - // Calculate cell sizes - auto cell_size = calculateCellSize(); - - for(auto const& pair : grid_ranges) - { - auto& item = *pair.first; - auto const& range = pair.second; - - moveAndResize(item, range, cell_size); - } -} - -void GridLayout::setPosition(LayoutItem* item, GridRange const& range) -{ - grid_ranges[item] = range; -} - -int GridLayout::lastUsedRow(int column) const -{ - int last_row = -1; - - for (auto const& grid_range : grid_ranges) - { - auto const& range = grid_range.second; - if (column >= range.column_begin && column < range.column_end) - { - last_row = std::max(last_row, range.row_end - 1); - } - } - - return last_row; -} - -int GridLayout::lastUsedColumn(int row) const -{ - int last_column = -1; - - for (auto const& grid_range : grid_ranges) - { - auto const& range = grid_range.second; - if (row >= range.row_begin && row < range.row_end) - { - last_column = std::max(last_column, range.column_end - 1); - } - } - - return last_column; - -} - -auto GridLayout::calculateCellSize() const -> CellSize -{ - auto empty_width = (number_of_columns - 1) * spacing; - auto available_width = parent->width(); - auto empty_height = (number_of_rows - 1) * spacing; - auto available_height = parent->height(); - - CellSize cell_size; - if(available_width > empty_width && available_height > empty_height) - { - cell_size.width = (available_width - empty_width) / number_of_columns; - cell_size.height = (available_height - empty_height) / number_of_rows; - } - else - { - cell_size.width = 0; - cell_size.height = 0; - } - - return cell_size; -} - -void GridLayout::moveAndResize( - LayoutItem& item, GridRange const& range, CellSize cell_size) const -{ - std::size_t x = range.column_begin * (cell_size.width + spacing); - std::size_t y = range.row_begin * (cell_size.height + spacing); - - std::size_t column_count = (range.column_end - range.column_begin); - std::size_t row_count = (range.row_end - range.row_begin); - std::size_t width = column_count * (cell_size.width + spacing) - spacing; - std::size_t height = row_count * (cell_size.height + spacing) - spacing; - - if(resizeChildren) - { - item.move(x, y); - - if(cell_size.width * cell_size.height != 0) - { - item.resize(width, height); - } - else - { - item.resize(0, 0); - } - } - else - { - auto x_new = (item.width() > width) ? x : x + (width - item.width()) / 2; - auto y_new = (item.height() > height) ? y : y + (height - item.height()) / 2; - - item.move(x_new, y_new); - } -} - -} // GUI:: |