Initial commit

.clang-format

@@ -0,0 +1,115 @@
+---
+Language:        Cpp
+# BasedOnStyle:  WebKit
+AccessModifierOffset: -4
+AlignAfterOpenBracket: DontAlign
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands:   false
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: false
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   true
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  AfterExternBlock: false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: All
+BreakBeforeBraces: WebKit
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeComma
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     0
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: false
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: false
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IncludeBlocks:   Preserve
+IncludeCategories:
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    Priority:        3
+  - Regex:           '.*'
+    Priority:        1
+IncludeIsMainRegex: '(Test)?$'
+IndentCaseLabels: false
+IndentPPDirectives: None
+IndentWidth:     4
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: Inner
+ObjCBlockIndentWidth: 4
+ObjCSpaceAfterProperty: true
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Left
+RawStringFormats:
+  - Delimiter:       pb
+    Language:        TextProto
+    BasedOnStyle:    google
+ReflowComments:  true
+SortIncludes:    true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard:        Cpp11
+TabWidth:        8
+UseTab:          Never
+...
+

.gitignore

@@ -0,0 +1 @@
+/build

.vscode/settings.json

@@ -0,0 +1,6 @@
+{
+    "files.associations": {
+        "array": "cpp",
+        "string_view": "cpp"
+    }
+}

CMakeLists.txt

@@ -0,0 +1,24 @@
+cmake_minimum_required (VERSION 3.0)
+project (material-decoration)
+
+add_definitions (-Wall -Werror)
+
+include (FeatureSummary)
+find_package (ECM 0.0.9 REQUIRED NO_MODULE)
+
+set (CMAKE_MODULE_PATH
+    ${CMAKE_MODULE_PATH}
+    ${ECM_MODULE_PATH}
+    ${ECM_KDE_MODULE_DIR}
+    "${CMAKE_SOURCE_DIR}/cmake"
+    "${CMAKE_SOURCE_DIR}/cmake/Modules"
+)
+
+include (ECMInstallIcons)
+include (KDEInstallDirs)
+include (KDECMakeSettings)
+include (KDECompilerSettings NO_POLICY_SCOPE)
+
+add_subdirectory (src)
+
+feature_summary(WHAT ALL)

src/CMakeLists.txt

@@ -0,0 +1,42 @@
+find_package (KDecoration2 REQUIRED)
+
+find_package (Qt5 REQUIRED COMPONENTS
+    Core
+    Gui
+)
+
+find_package (KF5 REQUIRED COMPONENTS
+    Config
+    CoreAddons
+    GuiAddons
+    WindowSystem
+)
+
+set (decoration_SRCS
+    CloseButton.cc
+    Decoration.cc
+    MaximizeButton.cc
+    MinimizeButton.cc
+    plugin.cc
+)
+
+add_library (materialdecoration MODULE
+    ${decoration_SRCS}
+)
+
+target_link_libraries (materialdecoration
+    PUBLIC
+        Qt5::Core
+        Qt5::Gui
+        KF5::ConfigCore
+        KF5::ConfigGui
+        KF5::CoreAddons
+        KF5::GuiAddons
+        KF5::WindowSystem
+
+    PRIVATE
+        KDecoration2::KDecoration
+)
+
+install (TARGETS materialdecoration
+         DESTINATION ${PLUGIN_INSTALL_DIR}/org.kde.kdecoration2)

src/CloseButton.cc

@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2018 Vlad Zagorodniy <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+// own
+#include "CloseButton.h"
+#include "Decoration.h"
+
+// KDecoration
+#include <KDecoration2/DecoratedClient>
+
+// Qt
+#include <QPainter>
+
+namespace Material
+{
+
+CloseButton::CloseButton(Decoration *decoration, QObject *parent)
+    : DecorationButton(KDecoration2::DecorationButtonType::Close, decoration, parent)
+{
+    auto *decoratedClient = decoration->client().data();
+    connect(decoratedClient, &KDecoration2::DecoratedClient::closeableChanged,
+            this, &CloseButton::setVisible);
+
+    connect(this, &CloseButton::hoveredChanged, this,
+        [this] {
+            update();
+        });
+
+    const int titleBarHeight = decoration->titleBarHeight();
+    const QSize size(qRound(titleBarHeight * 1.33), titleBarHeight);
+    setGeometry(QRect(QPoint(0, 0), size));
+    setVisible(decoratedClient->isCloseable());
+}
+
+CloseButton::~CloseButton()
+{
+}
+
+void CloseButton::paint(QPainter *painter, const QRect &repaintRegion)
+{
+    Q_UNUSED(repaintRegion)
+
+    const QRectF buttonRect = geometry();
+    QRectF crossRect = QRectF(0, 0, 10, 10);
+    crossRect.moveCenter(buttonRect.center().toPoint());
+
+    painter->save();
+
+    painter->setRenderHints(QPainter::Antialiasing, false);
+
+    // Background.
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(backgroundColor());
+    painter->drawRect(buttonRect);
+
+    // Foreground.
+    painter->setPen(foregroundColor());
+    painter->setBrush(Qt::NoBrush);
+    painter->drawLine(crossRect.topLeft(), crossRect.bottomRight());
+    painter->drawLine(crossRect.topRight(), crossRect.bottomLeft());
+
+    painter->restore();
+}
+
+QColor CloseButton::backgroundColor() const
+{
+    const auto *deco = qobject_cast<Decoration *>(decoration());
+    if (!deco) {
+        return {};
+    }
+
+    if (isPressed()) {
+        auto *decoratedClient = deco->client().data();
+        return decoratedClient->color(
+            KDecoration2::ColorGroup::Warning,
+            KDecoration2::ColorRole::Foreground
+        ).lighter();
+    }
+
+    if (isHovered()) {
+        auto *decoratedClient = deco->client().data();
+        return decoratedClient->color(
+            KDecoration2::ColorGroup::Warning,
+            KDecoration2::ColorRole::Foreground
+        );
+    }
+
+    return deco->titleBarBackgroundColor();
+}
+
+QColor CloseButton::foregroundColor() const
+{
+    const auto *deco = qobject_cast<Decoration *>(decoration());
+    if (!deco) {
+        return {};
+    }
+
+    return deco->titleBarForegroundColor();
+}
+
+} // namespace Material

src/CloseButton.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2018 Vlad Zagorodniy <[email protected]>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+// KDecoration
+#include <KDecoration2/DecorationButton>
+
+namespace Material
+{
+
+class Decoration;
+
+class CloseButton : public KDecoration2::DecorationButton
+{
+    Q_OBJECT
+
+public:
+    CloseButton(Decoration *decoration, QObject *parent = nullptr);
+    ~CloseButton() override;
+
+    void paint(QPainter *painter, const QRect &repaintRegion) override;
+
+private:
+    QColor backgroundColor() const;
+    QColor foregroundColor() const;
+};
+
+} // namespace Material