From 966fe28c59f59fc8be795c8215b9352435982445 Mon Sep 17 00:00:00 2001 From: Aki Date: Thu, 30 Sep 2021 16:46:36 +0200 Subject: Merged nGenEx and Parser into Stars45 --- Stars45/ScrollWindow.cpp | 656 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 656 insertions(+) create mode 100644 Stars45/ScrollWindow.cpp (limited to 'Stars45/ScrollWindow.cpp') diff --git a/Stars45/ScrollWindow.cpp b/Stars45/ScrollWindow.cpp new file mode 100644 index 0000000..15a65ca --- /dev/null +++ b/Stars45/ScrollWindow.cpp @@ -0,0 +1,656 @@ +/* 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: ScrollWindow.cpp + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + ScrollWindow ActiveWindow class +*/ + +#include "MemDebug.h" +#include "ScrollWindow.h" +#include "Button.h" +#include "Bitmap.h" +#include "FormWindow.h" +#include "Video.h" +#include "Font.h" +#include "Keyboard.h" +#include "Mouse.h" + + +DWORD GetRealTime(); + +// +--------------------------------------------------------------------+ + +static int old_cursor; + +// +--------------------------------------------------------------------+ + +ScrollWindow::ScrollWindow(ActiveWindow* p, int ax, int ay, int aw, int ah, DWORD aid, DWORD s, ActiveWindow* paw) +: ActiveWindow(p->GetScreen(), ax, ay, aw, ah, aid, s, paw) +{ + captured = false; + dragging = false; + selecting = false; + scrolling = SCROLL_NONE; + + leading = 0; + scroll_bar = SCROLL_AUTO; + dragdrop = false; + scroll_count = 0; + line_count = 0; + page_count = 0; + page_size = 1; + top_index = 0; + line_height = 0; + mouse_x = 0; + mouse_y = 0; + + smooth_scroll = false; + smooth_offset = 0; + + track_length = ah - 2*TRACK_START - THUMB_HEIGHT; + thumb_pos = TRACK_START; + + char buf[32]; + sprintf_s(buf, "ScrollWindow %d", id); + desc = buf; +} + +ScrollWindow::ScrollWindow(Screen* s, int ax, int ay, int aw, int ah, DWORD aid, DWORD s1, ActiveWindow* paw) +: ActiveWindow(s, ax, ay, aw, ah, aid, s1, paw) +{ + captured = false; + dragging = false; + selecting = false; + scrolling = SCROLL_NONE; + + leading = 0; + scroll_bar = SCROLL_AUTO; + dragdrop = false; + scroll_count = 0; + line_count = 0; + page_count = 0; + page_size = 1; + top_index = 0; + line_height = 0; + mouse_x = 0; + mouse_y = 0; + + smooth_scroll = false; + smooth_offset = 0; + + track_length = ah - 2*TRACK_START - THUMB_HEIGHT; + thumb_pos = TRACK_START; + + char buf[32]; + sprintf_s(buf, "ScrollWindow %d", id); + desc = buf; +} + +ScrollWindow::~ScrollWindow() +{ } + +// +--------------------------------------------------------------------+ + +void +ScrollWindow::MoveTo(const Rect& r) +{ + ActiveWindow::MoveTo(r); + + track_length = rect.h - 2*TRACK_START - THUMB_HEIGHT; + thumb_pos = TRACK_START; +} + +// +--------------------------------------------------------------------+ + +void +ScrollWindow::Paint() +{ + if (transparent) { + DrawTransparent(); + } + + else { + ActiveWindow::Paint(); + } +} + +// +--------------------------------------------------------------------+ + +void +ScrollWindow::Draw() +{ + int x = 0; + int y = 0; + int w = rect.w; + int h = rect.h; + + if (w < 1 || h < 1 || !shown) + return; + + ActiveWindow::Draw(); + + if (line_height < 1) + line_height = GetFont()->Height(); + page_size = h / (line_height + leading); + + Rect ctrl_rect(x,y,w,h); + ctrl_rect.Deflate(BORDER_WIDTH, BORDER_WIDTH); + + if (IsScrollVisible()) { + ctrl_rect.w -= SCROLL_TRACK; + } + + DrawContent(ctrl_rect); + DrawScrollBar(); +} + +// +--------------------------------------------------------------------+ + +void +ScrollWindow::DrawTransparent() +{ + int x = 0; + int y = 0; + int w = rect.w; + int h = rect.h; + + if (w < 1 || h < 1 || !shown) + return; + + if (line_height < 1) + line_height = GetFont()->Height(); + page_size = h / (line_height + leading); + + Rect ctrl_rect(x,y,w,h); + ctrl_rect.Deflate(BORDER_WIDTH, BORDER_WIDTH); + + if (IsScrollVisible()) { + ctrl_rect.w -= SCROLL_TRACK; + } + + DrawTransparentContent(ctrl_rect); + DrawScrollBar(); +} + +// +--------------------------------------------------------------------+ + +void +ScrollWindow::DrawContent(const Rect& ctrl_rect) +{ + // override to do control-specific drawing +} + +void +ScrollWindow::DrawTransparentContent(const Rect& ctrl_rect) +{ + // override (if necessary) to do control-specific drawing + DrawContent(ctrl_rect); +} + +void +ScrollWindow::DrawScrollBar() +{ + // draw scroll bar if necessary: + if (IsScrollVisible()) { + Color save_color = back_color; + back_color = ShadeColor(back_color, 1.3); + + // draw scroll track border: + DrawLine(rect.w-SCROLL_TRACK, BORDER_WIDTH, rect.w-SCROLL_TRACK, rect.h-BORDER_WIDTH, back_color); + + // draw top button + Rect btn_rect(rect.w-SCROLL_WIDTH, BORDER_WIDTH, SCROLL_WIDTH-BORDER_WIDTH, SCROLL_HEIGHT); + FillRect(btn_rect, back_color); + DrawStyleRect(btn_rect, WIN_RAISED_FRAME); + + // draw bottom button: + btn_rect.y = rect.h - (SCROLL_HEIGHT+BORDER_WIDTH); + FillRect(btn_rect, back_color); + DrawStyleRect(btn_rect, WIN_RAISED_FRAME); + + // draw thumb: + btn_rect.y = thumb_pos; + btn_rect.h = btn_rect.w; + FillRect(btn_rect, back_color); + DrawStyleRect(btn_rect, WIN_RAISED_FRAME); + + back_color = save_color; + } + + if (scrolling && scroll_count) + Scroll(scrolling, scroll_count); +} + +// +--------------------------------------------------------------------+ + +bool +ScrollWindow::IsScrollVisible() +{ + bool vis = false; + + if (scroll_bar == SCROLL_ALWAYS || + (scroll_bar == SCROLL_AUTO && + line_count > page_size)) { + vis = true; + } + + return vis; +} + +int ScrollWindow::GetLineHeight() +{ + return line_height; +} + +void ScrollWindow::SetLineHeight(int h) +{ + if (h >= 0) + line_height = h; +} + +int ScrollWindow::GetLeading() +{ + return leading; +} + +void ScrollWindow::SetLeading(int nNewValue) +{ + if (leading != nNewValue && nNewValue >= 0) { + leading = nNewValue; + } +} + +int ScrollWindow::GetDragDrop() +{ + return dragdrop; +} + +void ScrollWindow::SetDragDrop(int nNewValue) +{ + if (dragdrop != nNewValue && (nNewValue == 0 || nNewValue == 1)) { + dragdrop = nNewValue; + } +} + +int ScrollWindow::GetScrollBarVisible() +{ + return scroll_bar; +} + +void ScrollWindow::SetScrollBarVisible(int nNewValue) +{ + if (scroll_bar != nNewValue) { + scroll_bar = nNewValue; + } +} + +bool ScrollWindow::GetSmoothScroll() +{ + return smooth_scroll; +} + +void ScrollWindow::SetSmoothScroll(bool bNewValue) +{ + if (smooth_scroll != bNewValue) { + smooth_scroll = bNewValue; + smooth_offset = top_index; + } +} + +bool ScrollWindow::CanScroll(int direction, int nlines) +{ + return false; +} + +void ScrollWindow::EnsureVisible(int index) +{ + if (index < top_index) + ScrollTo(index); + + else if (index > top_index+page_size) + ScrollTo(index-page_size); +} + +void ScrollWindow::Scroll(int direction, int nlines) +{ + if (nlines) { + scrolling = direction; + + if (direction == SCROLL_UP || direction == SCROLL_PAGE_UP) { + top_index--; + + if (top_index < 0) + top_index = 0; + + else + scroll_count = nlines-1; + } + + else if (direction == SCROLL_DOWN || direction == SCROLL_PAGE_DOWN) { + top_index++; + + if (top_index >= line_count) + top_index = line_count-1; + + else + scroll_count = nlines-1; + } + + smooth_offset = top_index; + thumb_pos = TRACK_START + (int) (track_length * (double) top_index/(line_count-1)); + + if (scroll_count < 1) + scrolling = SCROLL_NONE; + } +} + +void ScrollWindow::SmoothScroll(int direction, double nlines) +{ + if (!smooth_scroll) { + Scroll(direction, (int) nlines); + return; + } + + if (direction == SCROLL_UP || direction == SCROLL_PAGE_UP) { + smooth_offset -= nlines; + + if (smooth_offset < 0) + smooth_offset = 0; + } + + else if (direction == SCROLL_DOWN || direction == SCROLL_PAGE_DOWN) { + smooth_offset += nlines; + + if (smooth_offset >= line_count) + smooth_offset = line_count-1; + } + + top_index = (int) smooth_offset; + thumb_pos = TRACK_START + (int) (track_length * smooth_offset/(line_count-1)); + scrolling = SCROLL_NONE; +} + +void ScrollWindow::ScrollTo(int index) +{ + if (index >= 0 && index < line_count) { + top_index = index; + smooth_offset = index; + + thumb_pos = TRACK_START + (int) (track_length * smooth_offset/(line_count-1)); + } +} + +int ScrollWindow::GetTopIndex() +{ + return top_index; +} + +int ScrollWindow::GetPageCount() +{ + return line_count / GetPageSize(); +} + +int ScrollWindow::GetPageSize() +{ + return page_size; +} + +int ScrollWindow::GetScrollTrack() +{ + return rect.w-SCROLL_TRACK; +} + +int ScrollWindow::GetLineCount() +{ + return line_count; +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnMouseMove(int x, int y) +{ + bool dirty = false; + + if (captured) { + ActiveWindow* test = GetCapture(); + + if (test != this) { + captured = false; + dirty = true; + } + + else { + if (selecting && !dragging) { + if (dragdrop && (x < rect.x || + x > rect.x+rect.w || + y < rect.y || + y > rect.y+rect.h)) { + + dragging = true; + OnDragStart(x,y); + } + } + + if (scrolling == SCROLL_THUMB) { + mouse_y = y - rect.y - TRACK_START; + + int dest = (int) ((double) mouse_y/track_length * (line_count-1)); + ScrollTo(dest); + dirty = true; + } + } + } + + return ActiveWindow::OnMouseMove(x,y); +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnLButtonDown(int x, int y) +{ + if (!captured) + captured = SetCapture(); + + mouse_x = x - rect.x; + mouse_y = y - rect.y; + + int x_scroll_bar = rect.w; + + if (scroll_bar == SCROLL_ALWAYS || + (scroll_bar == SCROLL_AUTO && + line_count > page_size)) + x_scroll_bar -= SCROLL_WIDTH; + + if (mouse_x < x_scroll_bar) { + scrolling = SCROLL_NONE; + selecting = true; + } + + else { + selecting = false; + + if (mouse_y < TRACK_START) { + scrolling = SCROLL_UP; + Scroll(scrolling, 1); + Button::PlaySound(Button::SND_LIST_SCROLL); + } + + else if (mouse_y > rect.h-TRACK_START) { + scrolling = SCROLL_DOWN; + if (top_index < line_count-1) + top_index++; + Button::PlaySound(Button::SND_LIST_SCROLL); + } + + else if (mouse_y < thumb_pos) { + scrolling = SCROLL_PAGE_UP; + Scroll(scrolling, page_size); + Button::PlaySound(Button::SND_LIST_SCROLL); + } + + else if (mouse_y > thumb_pos+THUMB_HEIGHT) { + scrolling = SCROLL_PAGE_DOWN; + Scroll(scrolling, page_size); + Button::PlaySound(Button::SND_LIST_SCROLL); + } + + else { + scrolling = SCROLL_THUMB; + } + } + + return ActiveWindow::OnLButtonDown(x,y); +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnLButtonUp(int x, int y) +{ + if (captured) { + mouse_x = x-rect.x; + mouse_y = y-rect.y; + + if (dragging) { + if (mouse_x < 0 || mouse_x > rect.w || mouse_y < 0 || mouse_y > rect.h) { + FormWindow* parent_form = (FormWindow*) form; + + if (parent_form) { + ActiveWindow* drop_target = parent_form->FindControl(x,y); + + if (drop_target && drop_target->IsEnabled() && drop_target->IsShown()) + drop_target->OnDragDrop(x,y,this); + } + } + } + + ReleaseCapture(); + captured = false; + + Mouse::SetCursor((Mouse::CURSOR) old_cursor); + } + + dragging = false; + selecting = false; + + return ActiveWindow::OnLButtonUp(x,y); +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnMouseWheel(int wheel) +{ + if (wheel > 0) + Scroll(SCROLL_UP, 1); + + else if (wheel < 0) + Scroll(SCROLL_DOWN, 1); + + if (GetLineCount() > 0) { + static double scroll_time = 0; + + if (GetRealTime() - scroll_time > 0.5) { + scroll_time = GetRealTime(); + Button::PlaySound(Button::SND_LIST_SCROLL); + } + } + + return ActiveWindow::OnMouseWheel(wheel); +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnClick() +{ + int fire_select = !scrolling; + + if (scrolling == SCROLL_THUMB) + scrolling = SCROLL_NONE; + + if (fire_select) + return ActiveWindow::OnSelect(); + else + return ActiveWindow::OnClick(); + + return 0; +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnKeyDown(int vk, int flags) +{ + switch (vk) { + case VK_UP: Scroll(SCROLL_UP, 1); + Button::PlaySound(Button::SND_LIST_SCROLL); + break; + + case VK_DOWN: Scroll(SCROLL_DOWN, 1); + Button::PlaySound(Button::SND_LIST_SCROLL); + break; + + case VK_PRIOR: Scroll(SCROLL_UP, page_count); + Button::PlaySound(Button::SND_LIST_SCROLL); + break; + + case VK_NEXT: Scroll(SCROLL_DOWN, page_count); + Button::PlaySound(Button::SND_LIST_SCROLL); + break; + + case VK_HOME: EnsureVisible(0); + Button::PlaySound(Button::SND_LIST_SCROLL); + break; + + case VK_END: EnsureVisible(line_count-1); + Button::PlaySound(Button::SND_LIST_SCROLL); + break; + + default: break; + } + + return ActiveWindow::OnKeyDown(vk, flags); +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnDragStart(int x, int y) +{ + old_cursor = Mouse::SetCursor(Mouse::DRAG); + return ActiveWindow::OnDragStart(x,y); +} + +// +--------------------------------------------------------------------+ + +int ScrollWindow::OnDragDrop(int x, int y, ActiveWindow* source) +{ + return ActiveWindow::OnDragDrop(x,y,source); +} -- cgit v1.1