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engines/hpl1/engine/gui/WidgetButton.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 3 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/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#include "hpl1/engine/gui/WidgetButton.h"
+
+#include "hpl1/engine/system/low_level_system.h"
+
+#include "hpl1/engine/math/Math.h"
+
+#include "hpl1/engine/system/String.h"
+
+#include "hpl1/engine/gui/Gui.h"
+#include "hpl1/engine/gui/GuiGfxElement.h"
+#include "hpl1/engine/gui/GuiSet.h"
+#include "hpl1/engine/gui/GuiSkin.h"
+
+#include "hpl1/engine/graphics/font_data.h"
+
+namespace hpl {
+
+//////////////////////////////////////////////////////////////////////////
+// CONSTRUCTORS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+cWidgetButton::cWidgetButton(cGuiSet *apSet, cGuiSkin *apSkin) : iWidget(eWidgetType_Button, apSet, apSkin) {
+	mbPressed = false;
+	mpImage = NULL;
+}
+
+//-----------------------------------------------------------------------
+
+cWidgetButton::~cWidgetButton() {
+	if (mpImage && mbDestroyImage) {
+		mpGui->DestroyGfx(mpImage);
+	}
+}
+
+//-----------------------------------------------------------------------
+
+//////////////////////////////////////////////////////////////////////////
+// PUBLIC METHODS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+void cWidgetButton::SetImage(cGuiGfxElement *apImage, bool abDestroyImage) {
+	mpImage = apImage;
+	mbDestroyImage = abDestroyImage;
+}
+
+//-----------------------------------------------------------------------
+
+//////////////////////////////////////////////////////////////////////////
+// PROTECTED METHODS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+void cWidgetButton::OnLoadGraphics() {
+	/////////////////////////
+	// Up
+	mpGfxBackgroundUp = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpBackground);
+
+	mvGfxBordersUp[0] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpBorderRight);
+	mvGfxBordersUp[1] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpBorderLeft);
+	mvGfxBordersUp[2] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpBorderUp);
+	mvGfxBordersUp[3] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpBorderDown);
+
+	mvGfxCornersUp[0] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpCornerLU);
+	mvGfxCornersUp[1] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpCornerRU);
+	mvGfxCornersUp[2] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpCornerRD);
+	mvGfxCornersUp[3] = mpSkin->GetGfx(eGuiSkinGfx_ButtonUpCornerLD);
+
+	/////////////////////////
+	// Down
+	mpGfxBackgroundDown = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownBackground);
+
+	mvGfxBordersDown[0] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownBorderRight);
+	mvGfxBordersDown[1] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownBorderLeft);
+	mvGfxBordersDown[2] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownBorderUp);
+	mvGfxBordersDown[3] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownBorderDown);
+
+	mvGfxCornersDown[0] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownCornerLU);
+	mvGfxCornersDown[1] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownCornerRU);
+	mvGfxCornersDown[2] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownCornerRD);
+	mvGfxCornersDown[3] = mpSkin->GetGfx(eGuiSkinGfx_ButtonDownCornerLD);
+}
+
+//-----------------------------------------------------------------------
+
+void cWidgetButton::OnDraw(float afTimeStep, cGuiClipRegion *apClipRegion) {
+	cVector3f vOffset = 0;
+	if (mbPressed)
+		vOffset = mpSkin->GetAttribute(eGuiSkinAttribute_ButtonPressedContentOffset);
+
+	////////////////////////////////
+	// Image
+	if (mpImage) {
+		mpSet->DrawGfx(mpImage, GetGlobalPosition() +
+									cVector3f(mvSize.x / 2 - mpImage->GetImageSize().x / 2,
+											  mvSize.y / 2 - mpImage->GetImageSize().y / 2, 0.2f) +
+									vOffset);
+	}
+
+	////////////////////////////////
+	// Text
+	if (IsEnabled()) {
+		DrawDefaultText(msText, GetGlobalPosition() + cVector3f(mvSize.x / 2, mvSize.y / 2 - mvDefaultFontSize.y / 2, 0.5f) + vOffset,
+						eFontAlign_Center);
+	} else {
+		DrawSkinText(msText, eGuiSkinFont_Disabled, GetGlobalPosition() + cVector3f(mvSize.x / 2, mvSize.y / 2 - mvDefaultFontSize.y / 2, 0.5f) + vOffset,
+					 eFontAlign_Center);
+	}
+
+	////////////////////////////////
+	// Borders and background
+	if (mbPressed) {
+		DrawBordersAndCorners(mpGfxBackgroundDown, mvGfxBordersDown, mvGfxCornersDown,
+							  GetGlobalPosition(), mvSize);
+	} else {
+		DrawBordersAndCorners(mpGfxBackgroundUp, mvGfxBordersUp, mvGfxCornersUp,
+							  GetGlobalPosition(), mvSize);
+	}
+}
+
+//-----------------------------------------------------------------------
+
+bool cWidgetButton::OnMouseMove(cGuiMessageData &aData) {
+	return true;
+}
+
+//-----------------------------------------------------------------------
+
+bool cWidgetButton::OnMouseDown(cGuiMessageData &aData) {
+	mbPressed = true;
+	return true;
+}
+
+//-----------------------------------------------------------------------
+
+bool cWidgetButton::OnMouseUp(cGuiMessageData &aData) {
+	if (GetMouseIsOver() == false)
+		return false;
+
+	if (mbPressed)
+		ProcessMessage(eGuiMessage_ButtonPressed, aData);
+
+	mbPressed = false;
+
+	return true;
+}
+
+//-----------------------------------------------------------------------
+
+bool cWidgetButton::OnMouseEnter(cGuiMessageData &aData) {
+	return false;
+}
+
+//-----------------------------------------------------------------------
+
+bool cWidgetButton::OnMouseLeave(cGuiMessageData &aData) {
+	mbPressed = false;
+
+	return false;
+}
+
+//-----------------------------------------------------------------------
+
+} // namespace hpl