Add a way to create a message box

code/uilib/uimessage.cpp

@@ -0,0 +1,114 @@
+/*
+===========================================================================
+Copyright (C) 2015 the OpenMoHAA team
+
+This file is part of OpenMoHAA source code.
+
+OpenMoHAA source code 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.
+
+OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#pragma once
+
+#include "uimessage.h"
+
+CLASS_DECLARATION(UIFloatingWindow, UIMessageDialog, NULL) {
+    {&W_Deactivated, &UIFloatingWindow::ClosePressed},
+    {NULL,           NULL                           }
+};
+
+UIMessageDialog::UIMessageDialog()
+    : m_label(NULL)
+    , m_ok(NULL)
+{}
+
+UIMessageDialog::~UIMessageDialog()
+{
+    if (m_label) {
+        delete m_label;
+    }
+
+    if (m_ok) {
+        delete m_ok;
+    }
+}
+
+void UIMessageDialog::FrameInitialized(void)
+{
+    UIFloatingWindow::FrameInitialized();
+
+    m_label = new UILabel();
+
+    m_label->InitFrame(getChildSpace(), getChildSpace()->getClientFrame(), 0);
+    m_label->setForegroundColor(UHudColor);
+
+    m_ok = new UIButton();
+    m_ok->InitFrame(getChildSpace(), UIRect2D(100, 150, 100, 30), 0);
+    m_ok->setTitle("OK");
+    m_ok->setBackgroundColor(UColor(0.25f, 0.295f, 0.378f), false);
+    m_ok->AllowActivate(true);
+    m_ok->Connect(this, W_Button_Pressed, W_Deactivated);
+
+    m_minimizeButton->ProcessEvent(EV_Widget_Hide);
+}
+
+void UIMessageDialog::setText(const char *text)
+{
+    int maxWidth = m_label->getFont()->getWidth(text, -1);
+    int maxHeight = m_label->getFont()->getHeight(text, -1);
+
+    m_label->setTitle(text);
+
+    UIRect2D rect;
+    rect.pos.x = (uid.vidWidth - Q_max(maxWidth, 100)) / 2.0;
+    rect.pos.y = (uid.vidHeight - Q_max(maxHeight, 32)) / 2.0;
+    rect.size.width = maxWidth + 32;
+    rect.size.height = 8 + maxHeight + 16 + 24 + 32;
+
+    setFrame(rect);
+
+    const UIRect2D clientFrame = getChildSpace()->getClientFrame();
+
+    UIRect2D labelRect;
+    labelRect.pos.x = 8;
+    labelRect.pos.y = 8;
+    labelRect.size.width = maxWidth;
+    labelRect.size.height = maxHeight;
+    m_label->setFrame(labelRect);
+
+    UIRect2D buttonRect;
+    buttonRect.pos.x = (clientFrame.size.width - 64) / 2;
+    buttonRect.pos.y = labelRect.pos.y + labelRect.size.height + 16;
+    buttonRect.size.width = 64;
+    buttonRect.size.height = 24;
+    m_ok->setFrame(buttonRect);
+}
+
+void UIMessageDialog::ShowMessageBox(const char *title, const char *text)
+{
+    UIMessageDialog *dialog;
+
+    dialog = new UIMessageDialog();
+
+    dialog->Create(
+        NULL, UIRect2D(uid.vidWidth / 2, uid.vidHeight / 2, 100, 200), title, UColor(0.15f, 0.195f, 0.278f), UHudColor
+    );
+
+    dialog->setText(text);
+
+    uWinMan.ActivateControl(dialog);
+
+    dialog->Connect(dialog, W_Deactivated, W_Deactivated);
+}

code/uilib/uimessage.h

@@ -0,0 +1,46 @@
+/*
+===========================================================================
+Copyright (C) 2015 the OpenMoHAA team
+
+This file is part of OpenMoHAA source code.
+
+OpenMoHAA source code 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.
+
+OpenMoHAA source code 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 OpenMoHAA source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+===========================================================================
+*/
+
+#pragma once
+
+#include "cl_ui.h"
+
+class UIMessageDialog : public UIFloatingWindow
+{
+public:
+    CLASS_PROTOTYPE(UIMessageDialog);
+
+public:
+    UIMessageDialog();
+    ~UIMessageDialog();
+
+    void setText(const char *text);
+
+    static void ShowMessageBox(const char *title, const char *text);
+
+protected:
+    void FrameInitialized(void) override;
+
+private:
+    UILabel  *m_label;
+    UIButton *m_ok;
+};