[Fonts] Migrate ChatLog surfaces to theme font role (#7537)

* [Fonts] Migrate ChatLog surfaces to theme font role

* [Fonts] Keep ChatView on the app font and share the report log font

- ChatLog's unset fallback is qApp->font() again: ChatView never set a font
  before the role existed, so an unset role must not switch chat and the game
  log to monospace at the system GeneralFont size.
- Move the monospace fallback the report dialogs used before into
  report_utils::reportLogFont(), which returns the theme's ChatLog role when it
  is set and the old monospace otherwise. tab_report, dlg_my_reports and
  dlg_report_user now share it, so they cannot drift and they honour a themed
  size instead of overriding it.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/theme_manager.cpp

@@ -12,6 +12,7 @@
 #include <QFile>
 #include <QFileInfo>
 #include <QFlags>
+#include <QFontDatabase>
 #include <QGuiApplication>
 #include <QIODevice>
 #include <QLatin1Char>
@@ -658,11 +659,24 @@ QFont ThemeManager::appFont(AppFont::Role role) const
         return it.value();
     }
 
-    // No per-role scaling: every unset role resolves to the application font,
-    // so with no fonts.toml present the result is identical to before.
+    // Role fallbacks preserve the pre-theme defaults when no fonts.toml is
+    // present: card text starts from a serif basis, everything else from the
+    // application font. The report dialogs that used to hardcode monospace ask
+    // for it explicitly (report_utils::reportLogFont).
+    if (role == AppFont::CardText) {
+        return QFont(QStringLiteral("Serif"));
+    }
+
+    // No per-role scaling: every other unset role resolves to the application
+    // font, so with no fonts.toml present the result is identical to before.
     return qApp->font();
 }
 
+bool ThemeManager::hasAppFont(AppFont::Role role) const
+{
+    return currentFonts.fonts.contains(role);
+}
+
 QFont ThemeManager::defaultAppFont(AppFont::Role /*role*/) const
 {
     // No per-role scaling and no preview: an unset role resolves to the font

cockatrice/src/interface/theme_manager.h

@@ -150,8 +150,11 @@ public:
     // when present, otherwise a palette-accent-derived fallback.
     QColor appColor(AppColor::Role role) const;
     /** @brief Resolves an application font role: the theme's stored [Fonts]
-     *         value when present, otherwise the application font. */
+     *         value when present, otherwise a per-role fallback (serif basis
+     *         for CardText, the application font for the remaining roles). */
     QFont appFont(AppFont::Role role) const;
+    /** @brief Whether the active theme defines this role in fonts.toml. */
+    bool hasAppFont(AppFont::Role role) const;
     /** @brief Resolves an application font role against the startup font only,
      *         ignoring any previewed config in currentFonts. Editors that show
      *         "what this role resolves to" must use this, because appFont()

cockatrice/src/interface/widgets/dialogs/dlg_my_reports.cpp

@@ -1,11 +1,13 @@
 #include "dlg_my_reports.h"
 
+#include "../interface/theme_manager.h"
 #include "../utility/report_utils.h"
 #include "abstract_client.h"
 #include "libcockatrice/protocol/pb/response.pb.h"
 #include "libcockatrice/protocol/pb/serverinfo_report.pb.h"
 
 #include <QAbstractItemView>
+#include <QFont>
 #include <QGroupBox>
 #include <QHBoxLayout>
 #include <QHeaderView>
@@ -24,7 +26,6 @@
 #include <libcockatrice/protocol/pb/response_report_details.pb.h>
 #include <libcockatrice/protocol/pb/response_report_my_list.pb.h>
 #include <libcockatrice/protocol/pending_command.h>
-#include <libcockatrice/utility/qt_utils.h>
 #include <qnamespace.h>
 #include <string>
 
@@ -69,7 +70,8 @@ DlgMyReports::DlgMyReports(AbstractClient *_client, QWidget *parent)
     auto *chatGroup = new QGroupBox(tr("Chat Log Context"));
     chatLogEdit = new QTextEdit;
     chatLogEdit->setReadOnly(true);
-    chatLogEdit->setFont(QtUtils::monospaceFont());
+    applyChatLogFont();
+    connect(themeManager, &ThemeManager::fontsChanged, this, &DlgMyReports::applyChatLogFont);
     auto *chatLayout = new QVBoxLayout(chatGroup);
     chatLayout->setContentsMargins(4, 4, 4, 4);
     chatLayout->addWidget(chatLogEdit);
@@ -122,6 +124,11 @@ DlgMyReports::DlgMyReports(AbstractClient *_client, QWidget *parent)
     refreshList();
 }
 
+void DlgMyReports::applyChatLogFont()
+{
+    chatLogEdit->setFont(report_utils::reportLogFont());
+}
+
 void DlgMyReports::refreshList()
 {
     selectedReportIdBeforeRefresh = selectedReportId;

cockatrice/src/interface/widgets/dialogs/dlg_my_reports.h

@@ -29,6 +29,7 @@ private slots:
     void reportDetailsResponse(const Response &response);
     void addComment();
     void addCommentResponse(const Response &response);
+    void applyChatLogFont();
 
 private:
     void loadReportDetails(const ServerInfo_Report &report);

cockatrice/src/interface/widgets/dialogs/dlg_report_user.cpp

@@ -1,10 +1,13 @@
 #include "dlg_report_user.h"
 
+#include "../interface/theme_manager.h"
+#include "../utility/report_utils.h"
 #include "abstract_client.h"
 #include "libcockatrice/protocol/pb/response.pb.h"
 
 #include <QComboBox>
 #include <QDialogButtonBox>
+#include <QFont>
 #include <QGridLayout>
 #include <QGroupBox>
 #include <QLabel>
@@ -91,7 +94,8 @@ DlgReportUser::DlgReportUser(AbstractClient *_client,
     auto *chatLayout = new QVBoxLayout(chatGroup);
     chatLogEdit = new QTextEdit;
     chatLogEdit->setReadOnly(true);
-    chatLogEdit->setFont(QtUtils::monospaceFont());
+    applyChatLogFont();
+    connect(themeManager, &ThemeManager::fontsChanged, this, &DlgReportUser::applyChatLogFont);
     if (!_autoChatLog.isEmpty()) {
         chatLogEdit->setPlainText(_autoChatLog);
     } else {
@@ -120,6 +124,11 @@ DlgReportUser::DlgReportUser(AbstractClient *_client,
     layout->addWidget(buttonBox);
 }
 
+void DlgReportUser::applyChatLogFont()
+{
+    chatLogEdit->setFont(report_utils::reportLogFont());
+}
+
 void DlgReportUser::actSubmit()
 {
     const QString description = descriptionEdit->toPlainText().trimmed();

cockatrice/src/interface/widgets/dialogs/dlg_report_user.h

@@ -27,6 +27,7 @@ public:
 private slots:
     void actSubmit();
     void reportResponse(const Response &response);
+    void applyChatLogFont();
 
 private:
     static QString categoryLabel(const QString &key);

cockatrice/src/interface/widgets/server/chat_view/chat_view.cpp

@@ -4,6 +4,7 @@
 #include "../../client/sound_engine.h"
 #include "../../interface/card_localization.h"
 #include "../../interface/pixel_map_generator.h"
+#include "../../interface/theme_manager.h"
 #include "../../tabs/tab_supervisor.h"
 #include "../user/user_context_menu.h"
 #include "../user/user_list_manager.h"
@@ -63,6 +64,9 @@ ChatView::ChatView(TabSupervisor *_tabSupervisor, AbstractGame *_game, bool _sho
 
     connect(&SettingsCache::instance(), &SettingsCache::themeChanged, this, &ChatView::adjustColorsToPalette);
 
+    applyChatFont();
+    connect(themeManager, &ThemeManager::fontsChanged, this, &ChatView::applyChatFont);
+
     userContextMenu = new UserContextMenu(tabSupervisor, this, game);
     connect(userContextMenu, SIGNAL(openMessageDialog(QString, bool)), this, SIGNAL(openMessageDialog(QString, bool)));
 
@@ -108,6 +112,16 @@ void ChatView::adjustColorsToPalette()
     QTimer::singleShot(0, this, &ChatView::refreshBlockColors);
 }
 
+void ChatView::applyChatFont()
+{
+    // Family comes from the ChatLog theme role; the message char formats carry
+    // no family of their own, so they (and new content) follow the widget and
+    // document default fonts. Weights/italics stay caller-side as before.
+    const QFont chatFont = themeManager->appFont(AppFont::ChatLog);
+    setFont(chatFont);
+    document()->setDefaultFont(chatFont);
+}
+
 void ChatView::refreshBlockColors()
 {
     QTextDocument *doc = document();

cockatrice/src/interface/widgets/server/chat_view/chat_view.h

@@ -111,6 +111,7 @@ private slots:
     void openLink(const QUrl &link);
     void actMessageClicked();
     void adjustColorsToPalette();
+    void applyChatFont();
     void refreshBlockColors();
     void onScrollBarRangeChanged();
     void onScrollBarValueChanged(int value);

cockatrice/src/interface/widgets/tabs/tab_report.cpp

@@ -1,5 +1,6 @@
 #include "tab_report.h"
 
+#include "../interface/theme_manager.h"
 #include "../server/user/user_context_menu.h"
 #include "../utility/report_utils.h"
 #include "abstract_client.h"
@@ -12,6 +13,7 @@
 #include <QComboBox>
 #include <QDateTime>
 #include <QDebug>
+#include <QFont>
 #include <QGridLayout>
 #include <QGroupBox>
 #include <QHBoxLayout>
@@ -137,7 +139,8 @@ TabReport::TabReport(TabSupervisor *_tabSupervisor, AbstractClient *_client) : T
     chatGroup = new QGroupBox;
     chatLogEdit = new QTextEdit;
     chatLogEdit->setReadOnly(true);
-    chatLogEdit->setFont(QtUtils::monospaceFont());
+    applyChatLogFont();
+    connect(themeManager, &ThemeManager::fontsChanged, this, &TabReport::applyChatLogFont);
     auto *chatLayout = new QVBoxLayout(chatGroup);
     chatLayout->setContentsMargins(4, 4, 4, 4);
     chatLayout->addWidget(chatLogEdit);
@@ -269,6 +272,11 @@ TabReport::TabReport(TabSupervisor *_tabSupervisor, AbstractClient *_client) : T
     refreshList();
 }
 
+void TabReport::applyChatLogFont()
+{
+    chatLogEdit->setFont(report_utils::reportLogFont());
+}
+
 void TabReport::retranslateUi()
 {
     userContextMenu->retranslateUi();

cockatrice/src/interface/widgets/tabs/tab_report.h

@@ -62,6 +62,7 @@ private slots:
     void statsResponse(const Response &response);
     void reopenReport();
     void reopenResponse(const Response &response);
+    void applyChatLogFont();
 
 private:
     int selectedReportId() const;

cockatrice/src/interface/widgets/utility/report_utils.cpp

@@ -1,5 +1,6 @@
 #include "report_utils.h"
 
+#include "../../theme_manager.h"
 #include "libcockatrice/protocol/pb/serverinfo_report.pb.h"
 
 #include <QApplication>
@@ -7,6 +8,7 @@
 #include <QChar>
 #include <QColor>
 #include <QDateTime>
+#include <QFontDatabase>
 #include <QPalette>
 #include <QSharedPointer>
 #include <QTableWidget>
@@ -19,6 +21,20 @@
 namespace report_utils
 {
 
+QFont reportLogFont()
+{
+    if (themeManager->hasAppFont(AppFont::ChatLog)) {
+        return themeManager->appFont(AppFont::ChatLog);
+    }
+    QFont monoFont(QStringLiteral("monospace"));
+    monoFont.setStyleHint(QFont::Monospace);
+    const int systemPointSize = QFontDatabase::systemFont(QFontDatabase::GeneralFont).pointSize();
+    if (systemPointSize > 0) {
+        monoFont.setPointSize(systemPointSize);
+    }
+    return monoFont;
+}
+
 namespace
 {
 QColor reportStatusColor(const QString &status)

cockatrice/src/interface/widgets/utility/report_utils.h

@@ -1,6 +1,7 @@
 #ifndef REPORT_UTILS_H
 #define REPORT_UTILS_H
 
+#include <QFont>
 #include <QString>
 #include <QtGlobal>
 
@@ -11,6 +12,12 @@ class ServerInfo_Report;
 namespace report_utils
 {
 
+/** @brief Font for the report chat-log views: the theme's ChatLog role when it
+ *         sets one, otherwise the monospace font these views used before the
+ *         role existed. Shared by the three report surfaces so they cannot
+ *         drift apart. */
+QFont reportLogFont();
+
 QString formatReportCategory(const QString &category);
 QString formatReportTime(qint64 secondsSinceEpoch);