diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | src/monthlayout.cpp | 81 | ||||
| -rw-r--r-- | src/monthlayout.h | 57 |
3 files changed, 139 insertions, 0 deletions
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt index 8f32fcc..7e3508b 100644 --- a/src/CMakeLists.txt +++ b/src/CMakeLists.txt @@ -48,6 +48,7 @@ add_library(qtmaildir_lib STATIC calendarstore.cpp calendarwriter.cpp calendarsync.cpp + monthlayout.cpp ) target_include_directories(qtmaildir_lib diff --git a/src/monthlayout.cpp b/src/monthlayout.cpp new file mode 100644 index 0000000..4801fe2 --- /dev/null +++ b/src/monthlayout.cpp @@ -0,0 +1,81 @@ +/* + * qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs + * Copyright (C) 2026 Danilo M. <danix@danix.xyz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "monthlayout.h" + +MonthLayout::MonthLayout(const QRect &area, int year, int month, Qt::DayOfWeek firstDay, + int dayNumberHeight, int chipHeight) + : m_area(area), m_start(gridStart(year, month, firstDay)), + m_dayNumberHeight(dayNumberHeight), m_chipHeight(chipHeight) +{ +} + +QDate MonthLayout::gridStart(int year, int month, Qt::DayOfWeek firstDay) +{ + const QDate first(year, month, 1); + const int back = (first.dayOfWeek() - firstDay + 7) % 7; + return first.addDays(-back); +} + +QDate MonthLayout::dateAt(int cell) const { return m_start.addDays(cell); } + +int MonthLayout::cellOf(const QDate &date) const +{ + const qint64 cell = m_start.daysTo(date); + return cell >= 0 && cell < kCells ? int(cell) : -1; +} + +QRect MonthLayout::cellRect(int cell) const +{ + // Edges computed from the area by proportion, so the rounding remainder + // is spread across cells and the last edge lands exactly on the area's. + const int col = cell % 7, row = cell / 7; + const int left = m_area.left() + m_area.width() * col / 7; + const int right = m_area.left() + m_area.width() * (col + 1) / 7; // exclusive + const int top = m_area.top() + m_area.height() * row / 6; + const int bottom = m_area.top() + m_area.height() * (row + 1) / 6; + return QRect(QPoint(left, top), QPoint(right - 1, bottom - 1)); +} + +int MonthLayout::cellAt(const QPoint &point) const +{ + if (!m_area.contains(point)) + return -1; + const int col = (point.x() - m_area.left()) * 7 / m_area.width(); + const int row = (point.y() - m_area.top()) * 6 / m_area.height(); + return row * 7 + col; +} + +int MonthLayout::capacity() const +{ + const int height = m_area.height() / 6 - m_dayNumberHeight; + return m_chipHeight > 0 ? qMax(0, height / m_chipHeight) : 0; +} + +int MonthLayout::visibleChips(int total) const +{ + const int cap = capacity(); + return total <= cap ? total : qMax(0, cap - 1); +} + +QRect MonthLayout::chipRect(int cell, int slot) const +{ + const QRect c = cellRect(cell); + return QRect(c.left() + 2, c.top() + m_dayNumberHeight + slot * m_chipHeight, + c.width() - 4, m_chipHeight - 1); +} diff --git a/src/monthlayout.h b/src/monthlayout.h new file mode 100644 index 0000000..0aad3fe --- /dev/null +++ b/src/monthlayout.h @@ -0,0 +1,57 @@ +/* + * qtmaildir - a Qt6 mail client for notmuch-indexed Maildirs + * Copyright (C) 2026 Danilo M. <danix@danix.xyz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#pragma once + +#include <QDate> +#include <QPoint> +#include <QRect> + +/// Where everything in the month grid goes, with no painter and no widget. +/// +/// The CardLayout precedent: a geometric claim is tested as a function call, +/// because AGENTS.md records how rendering probes lie. Six rows of seven +/// always, so the grid does not jump in height between months. +class MonthLayout +{ +public: + static constexpr int kCells = 42; + + MonthLayout(const QRect &area, int year, int month, Qt::DayOfWeek firstDay, + int dayNumberHeight, int chipHeight); + + static QDate gridStart(int year, int month, Qt::DayOfWeek firstDay); + + QDate dateAt(int cell) const; + int cellOf(const QDate &date) const; ///< -1 when not on the grid. + QRect cellRect(int cell) const; + int cellAt(const QPoint &point) const; ///< -1 outside the grid. + + /// How many chip slots fit under a cell's day number. + int capacity() const; + /// How many of `total` chips are drawn; when fewer than `total`, the + /// next slot holds "+N more". + int visibleChips(int total) const; + QRect chipRect(int cell, int slot) const; + +private: + QRect m_area; + QDate m_start; + int m_dayNumberHeight; + int m_chipHeight; +}; |