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+/* Starshatter OpenSource Distribution
+ Copyright (c) 1997-2004, Destroyer Studios LLC.
+ All Rights Reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+ * Neither the name "Destroyer Studios" nor the names of its contributors
+ may be used to endorse or promote products derived from this software
+ without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+ SUBSYSTEM: nGenEx.lib
+ FILE: ComboList.cpp
+ AUTHOR: John DiCamillo
+
+
+ OVERVIEW
+ ========
+ Drop-down list of Buttons class
+*/
+
+#include "MemDebug.h"
+#include "ComboList.h"
+#include "ComboBox.h"
+#include "Button.h"
+#include "Video.h"
+#include "Bitmap.h"
+#include "Font.h"
+#include "Screen.h"
+
+// +--------------------------------------------------------------------+
+
+ComboList::ComboList(ComboBox* ctrl, ActiveWindow* p, int ax, int ay, int aw, int ah, int maxentries)
+ : ScrollWindow(p, ax, ay, aw, ah + (ah-2)*maxentries + 2, 0, 0, p), combo_box(ctrl)
+{
+ button_state = 0;
+ button_height = ah;
+ captured = 0;
+ seln = -1;
+ max_entries = maxentries;
+ scroll = 0;
+ scrolling = false;
+ border = true;
+ animated = true;
+ bevel_width = 5;
+
+ if (ctrl)
+ CopyStyle(*ctrl);
+
+ rect.h = (ah-2)*maxentries + 2;
+
+ int screen_height = Video::GetInstance()->Height();
+
+ if (rect.h > screen_height) {
+ rect.y = 0;
+ rect.h = screen_height;
+ }
+
+ else if (rect.y + rect.h > screen_height) {
+ rect.y = screen_height - rect.h;
+ }
+}
+
+ComboList::ComboList(ComboBox* ctrl, Screen* s, int ax, int ay, int aw, int ah, int maxentries)
+ : ScrollWindow(s, ax, ay, aw, ah + (ah-2)*maxentries + 2, 0), combo_box(ctrl)
+{
+ button_state = 0;
+ button_height = ah;
+ captured = 0;
+ seln = -1;
+ max_entries = maxentries;
+ scroll = 0;
+ scrolling = false;
+ border = true;
+ animated = true;
+ bevel_width = 5;
+
+ if (ctrl)
+ CopyStyle(*ctrl);
+
+ rect.h = (ah-2)*maxentries + 2;
+
+ int screen_height = Video::GetInstance()->Height();
+
+ if (rect.h > screen_height) {
+ rect.y = 0;
+ rect.h = screen_height;
+ }
+
+ else if (rect.y + rect.h > screen_height) {
+ rect.y = screen_height - rect.h;
+ }
+
+ screen->AddWindow(this); // just in case the base ctor couldn't do this
+}
+
+// +--------------------------------------------------------------------+
+
+ComboList::~ComboList()
+{
+ items.destroy();
+}
+
+// +--------------------------------------------------------------------+
+
+void
+ComboList::CopyStyle(const ComboBox& ctrl)
+{
+ active_color = ctrl.GetActiveColor();
+ border_color = ctrl.GetBorderColor();
+ fore_color = ctrl.GetForeColor();
+ back_color = ctrl.GetBackColor();
+
+ animated = ctrl.GetAnimated();
+ bevel_width = ctrl.GetBevelWidth();
+ border = ctrl.GetBorder();
+}
+
+// +--------------------------------------------------------------------+
+
+void
+ComboList::Show()
+{
+ if (!scrolling) {
+ scrolling = 1;
+ scroll = 0;
+ }
+
+ ScrollWindow::Show();
+}
+
+void
+ComboList::Hide()
+{
+ scrolling = 0;
+ scroll = 0;
+ ScrollWindow::Hide();
+}
+
+// +--------------------------------------------------------------------+
+
+void
+ComboList::Draw()
+{
+ int x = 0;
+ int y = 0;
+ int w = rect.w;
+ int h = button_height;
+
+ int index = 0;
+
+ // opening:
+ if (scrolling > 0) {
+ int limit = min(items.size(), max_entries);
+
+ if (scroll < limit) {
+ if (limit > 6)
+ scroll += 4;
+
+ else if (limit > 4)
+ scroll += 2;
+
+ else
+ scroll += 1;
+ }
+
+ if (scroll >= limit) {
+ scroll = limit;
+ scrolling = 0;
+ }
+ }
+
+ // closing:
+ else if (scrolling < 0) {
+ if (scroll > 0)
+ scroll--;
+ else
+ scrolling = 0;
+ }
+
+ if (items.size() < 1) {
+ Rect btn_rect(x,y,w,h);
+ DrawItem(" ", btn_rect, 0);
+ }
+ else {
+ ListIter<Text> item = items;
+ while (++item && index < max_entries) {
+ Rect btn_rect(x,y,w,h);
+ int sub_state = (index == seln) ? button_state : 0;
+
+ DrawItem(*item, btn_rect, sub_state);
+
+ y += button_height-2;
+ index++;
+ }
+ }
+
+ DrawRect(0,0,rect.w-1,rect.h-1,fore_color);
+}
+
+// +--------------------------------------------------------------------+
+
+void
+ComboList::DrawRectSimple(Rect& rect, int state)
+{
+ if (state && active_color != Color::Black)
+ FillRect(rect, active_color);
+ else
+ FillRect(rect, back_color);
+}
+
+void
+ComboList::DrawItem(Text label, Rect& btn_rect, int state)
+{
+ int x = btn_rect.x;
+ int y = btn_rect.y;
+ int w = btn_rect.w;
+ int h = btn_rect.h;
+
+ // draw the bevel:
+ DrawRectSimple(btn_rect, state);
+
+ // draw text here:
+ if (font && label.length()) {
+ int border_size = 4;
+
+ if (style & WIN_RAISED_FRAME && style & WIN_SUNK_FRAME)
+ border_size = 8;
+
+ Rect label_rect = CalcLabelRect(btn_rect);
+ int vert_space = label_rect.h;
+ int horz_space = label_rect.w;
+
+ DrawText(label.data(), 0, label_rect, DT_CALCRECT | DT_WORDBREAK | text_align);
+ vert_space = (vert_space - label_rect.h)/2;
+
+ label_rect.w = horz_space;
+
+ if (vert_space > 0)
+ label_rect.y += vert_space;
+
+ if (animated && state > 0) {
+ label_rect.x += state;
+ label_rect.y += state;
+ }
+
+ font->SetColor(fore_color);
+ DrawText(label.data(), 0, label_rect, DT_WORDBREAK | text_align);
+ }
+}
+
+Rect ComboList::CalcLabelRect(const Rect& btn_rect)
+{
+ // fit the text in the bevel:
+ Rect label_rect = btn_rect;
+ label_rect.Deflate(bevel_width, bevel_width);
+
+ return label_rect;
+}
+
+int ComboList::CalcSeln(int x, int y)
+{
+ y -= rect.y;
+
+ if (button_height < 1)
+ return 0;
+
+ return (int) (y / (button_height-2));
+}
+
+// +--------------------------------------------------------------------+
+
+int ComboList::OnMouseMove(int x, int y)
+{
+ if (captured)
+ {
+ ActiveWindow* test = GetCapture();
+
+ if (test != this)
+ {
+ captured = false;
+ button_state = -1;
+ }
+ }
+
+ int new_seln = CalcSeln(x,y);
+
+ if (new_seln != seln) {
+ seln = new_seln;
+ Button::PlaySound(Button::SND_COMBO_HILITE);
+ }
+
+ return ActiveWindow::OnMouseMove(x,y);
+}
+
+int ComboList::OnLButtonDown(int x, int y)
+{
+ if (!captured)
+ captured = SetCapture();
+
+ seln = CalcSeln(x,y);
+ button_state = 1;
+
+ return ActiveWindow::OnLButtonDown(x,y);
+}
+
+int ComboList::OnLButtonUp(int x, int y)
+{
+ if (captured) {
+ ReleaseCapture();
+ captured = 0;
+ }
+
+ seln = CalcSeln(x,y);
+ button_state = -1;
+ return ActiveWindow::OnLButtonUp(x,y);
+}
+
+int ComboList::OnClick()
+{
+ return ActiveWindow::OnClick();
+}
+
+int ComboList::OnMouseEnter(int mx, int my)
+{
+ if (button_state == 0)
+ button_state = -1;
+
+ return ActiveWindow::OnMouseEnter(mx, my);
+}
+
+int ComboList::OnMouseExit(int mx, int my)
+{
+ if (button_state == -1)
+ button_state = 0;
+
+ return ActiveWindow::OnMouseExit(mx, my);
+}
+
+void ComboList::KillFocus()
+{
+ if (combo_box)
+ combo_box->HideList();
+}
+
+// +--------------------------------------------------------------------+
+
+void ComboList::ClearItems()
+{
+ items.destroy();
+}
+
+// +--------------------------------------------------------------------+
+
+void ComboList::AddItem(const char* item)
+{
+ items.append(new(__FILE__,__LINE__) Text(item));
+}
+
+void ComboList::AddItems(ListIter<Text> item)
+{
+ while (++item)
+ items.append(new(__FILE__,__LINE__) Text(*item));
+}
+
+void ComboList::SetItems(ListIter<Text> item)
+{
+ items.destroy();
+ while (++item)
+ items.append(new(__FILE__,__LINE__) Text(*item));
+
+ // Resize window:
+
+ int ah = button_height;
+ max_entries = items.size();
+ Rect r = rect;
+ r.y = combo_box->Y();
+ int length = max_entries;
+
+ if (length < 1)
+ length = 1;
+
+ r.h = (ah-2)*length + 2;
+
+ int screen_height = Video::GetInstance()->Height();
+
+ if (r.h > screen_height) {
+ r.y = 0;
+ r.h = screen_height;
+ }
+
+ else if (r.y + r.h > screen_height) {
+ r.y = screen_height - r.h;
+ }
+
+ MoveTo(r);
+}
+
+const char* ComboList::GetItem(int index)
+{
+ if (index >= 0 && index < items.size())
+ return items[index]->data();
+ else
+ return 0;
+}
+
+void ComboList::SetItem(int index, const char* item)
+{
+ if (index >= 0 && index < items.size())
+ *items[index] = item;
+ else
+ items.append(new(__FILE__,__LINE__) Text(item));
+}
+
+int ComboList::GetCount()
+{
+ return items.size();
+}
+
+const char* ComboList::GetSelectedItem()
+{
+ if (seln >= 0 && seln < items.size())
+ return items[seln]->data();
+ else
+ return 0;
+}
+
+int ComboList::GetSelectedIndex()
+{
+ if (seln >= 0 && seln < items.size())
+ return seln;
+ else
+ return -1;
+}
+
+void ComboList::SetSelection(int index)
+{
+ if (index >= 0 && index < items.size())
+ seln = index;
+}
+
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