mirror of
https://github.com/amyinspace/MagicSetEditor2.git
synced 2026-06-10 04:57:00 -04:00
twanvl
74c95552e7
git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@1270 0fc631ac-6414-0410-93d0-97cfa31319b6
343 lines
12 KiB
C++
343 lines
12 KiB
C++
//+----------------------------------------------------------------------------+
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//| Description: Magic Set Editor - Program to make Magic (tm) cards |
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//| Copyright: (C) 2001 - 2008 Twan van Laarhoven and "coppro" |
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//| License: GNU General Public License 2 or later (see file COPYING) |
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//+----------------------------------------------------------------------------+
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// ----------------------------------------------------------------------------- : Includes
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#include <util/prec.hpp>
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#include <gui/control/gallery_list.hpp>
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#include <gfx/gfx.hpp>
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#include <wx/dcbuffer.h>
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DECLARE_TYPEOF_COLLECTION(GalleryList::SubColumn_for_typeof);
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// ----------------------------------------------------------------------------- : Events
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DEFINE_EVENT_TYPE(EVENT_GALLERY_SELECT);
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DEFINE_EVENT_TYPE(EVENT_GALLERY_ACTIVATE);
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// ----------------------------------------------------------------------------- : GalleryList
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GalleryList::GalleryList(Window* parent, int id, int direction, bool always_focused)
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: wxPanel(parent, id, wxDefaultPosition, wxDefaultSize, wxSUNKEN_BORDER | wxWANTS_CHARS | (direction == wxHORIZONTAL ? wxHSCROLL : wxVSCROLL) )
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, active_subcolumn(0)
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, direction(direction)
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, column_count(1)
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, always_focused(always_focused)
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, visible_start(0)
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{
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SubColumn col;
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col.can_select = true;
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col.selection = NO_SELECTION;
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subcolumns.push_back(col);
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}
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void GalleryList::selectSubColumn(size_t subcol) {
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if (subcol >= subcolumns.size()) return;
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if (!subcolumns[subcol].can_select) return;
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if (active_subcolumn == subcol) return;
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RefreshItem(subcolumns[active_subcolumn].selection);
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RefreshItem(subcolumns[subcol ].selection);
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active_subcolumn = subcol;
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}
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void GalleryList::select(size_t item, size_t subcolumn, bool event) {
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if (item >= itemCount()) return;
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// select column
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size_t old_active_subcolumn = active_subcolumn;
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selectSubColumn(subcolumn);
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SubColumn& col = subcolumns[active_subcolumn];
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// filter?
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bool changes = col.selection != item;
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onSelect(item, old_active_subcolumn, changes);
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// select
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size_t old_sel = col.selection;
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col.selection = item;
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changes |= col.selection != old_sel;
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// ensure visible
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if (itemStart(col.selection) < visible_start) {
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scrollTo(itemStart(col.selection));
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} else if (itemEnd(col.selection) > visibleEnd()) {
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scrollTo(itemEnd(col.selection) + visible_start - visibleEnd());
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} else if (col.selection != old_sel) {
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RefreshItem(old_sel);
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RefreshItem(col.selection);
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}
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// send event
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if (event && changes) {
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sendEvent(EVENT_GALLERY_SELECT);
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}
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}
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void GalleryList::update() {
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// ensure selection is visible
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SubColumn col = subcolumns[active_subcolumn];
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if (col.selection != NO_SELECTION) {
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if (itemStart(col.selection) < visible_start) {
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scrollTo(itemStart(col.selection), false);
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} else if (itemEnd(col.selection) > visibleEnd()) {
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scrollTo(itemEnd(col.selection) + visible_start - visibleEnd(), false);
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}
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}
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updateScrollbar();
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Refresh(false);
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}
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size_t GalleryList::findItem(const wxMouseEvent& ev) const {
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int x = ev.GetX();
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int y = ev.GetY();
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int w = item_size.x + SPACING;
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int h = item_size.y + SPACING;
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if (direction == wxHORIZONTAL) {
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x += visible_start;
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return (size_t)(max(0, x - MARGIN) / w) * column_count
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+ (size_t)min(max(0, y - MARGIN) / h, (int)column_count-1);
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} else {
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y += visible_start;
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return (size_t)(max(0, y - MARGIN) / h) * column_count
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+ (size_t)min(max(0, x - MARGIN) / w, (int)column_count-1);
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}
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}
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wxPoint GalleryList::itemPos(size_t item) const {
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if (direction == wxHORIZONTAL) {
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int x = (int)(item / column_count) * (item_size.x + SPACING);
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int y = (int)(item % column_count) * (item_size.y + SPACING);
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return wxPoint(x + MARGIN + BORDER - visible_start, y + MARGIN + BORDER);
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} else {
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int x = (int)(item % column_count) * (item_size.x + SPACING);
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int y = (int)(item / column_count) * (item_size.y + SPACING);
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return wxPoint(x + MARGIN + BORDER, y + MARGIN + BORDER - visible_start);
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}
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}
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// ----------------------------------------------------------------------------- : Scrolling & sizing
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void GalleryList::scrollTo(int top, bool update_scrollbar) {
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wxSize cs = GetClientSize();
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int total_height = itemEnd(itemCount() - 1);
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top = min(total_height - mainSize(cs), top);
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top = max(0, top);
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// scroll
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if (top == visible_start) return;
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visible_start = top;
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if (update_scrollbar) {
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// scroll bar
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updateScrollbar();
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// scroll actual window content
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Refresh(false);
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}
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}
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void GalleryList::updateScrollbar() {
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scrollTo(visible_start, false);
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// how many lines fit on the screen?
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int screen_height = mainSize(GetClientSize());
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int total_height = itemEnd(itemCount() - 1);
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// set the scrollbar parameters to reflect this
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SetScrollbar(direction, visible_start, screen_height, total_height);
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}
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void GalleryList::RefreshItem(size_t item) {
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if (item >= itemCount()) return;
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RefreshRect(wxRect(itemPos(item),item_size).Inflate(BORDER,BORDER), false);
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}
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void GalleryList::RefreshSelection() {
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FOR_EACH(col,subcolumns) RefreshItem(col.selection);
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}
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void GalleryList::onScroll(wxScrollWinEvent& ev) {
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wxEventType type = ev.GetEventType();
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if (type == wxEVT_SCROLLWIN_TOP) {
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scrollTo(0);
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} else if (type == wxEVT_SCROLLWIN_BOTTOM) {
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scrollTo(INT_MAX);
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} else if (type == wxEVT_SCROLLWIN_LINEUP) {
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scrollTo(visible_start - (mainSize(item_size) + SPACING));
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} else if (type == wxEVT_SCROLLWIN_LINEDOWN) {
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scrollTo(visible_start + (mainSize(item_size) + SPACING));
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} else if (type == wxEVT_SCROLLWIN_PAGEUP) {
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scrollTo(visible_start - visibleEnd() + mainSize(item_size));
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} else if (type == wxEVT_SCROLLWIN_PAGEDOWN) {
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scrollTo(visibleEnd() - mainSize(item_size));
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} else {
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scrollTo(ev.GetPosition());
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}
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}
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void GalleryList::onSize(wxSizeEvent& ev) {
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update();
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ev.Skip();
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}
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void GalleryList::onMouseWheel(wxMouseEvent& ev) {
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scrollTo(visible_start - (mainSize(item_size) + SPACING) * ev.GetWheelRotation() / ev.GetWheelDelta());
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}
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// ----------------------------------------------------------------------------- : Events
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void GalleryList::onLeftDown(wxMouseEvent& ev) {
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size_t item = findItem(ev);
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if (item < itemCount()) {
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// find column
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wxPoint pos = itemPos(item);
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int x = ev.GetX() - pos.x;
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int y = ev.GetY() - pos.y;
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size_t subcolumn = active_subcolumn;
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for (size_t j = 0 ; j < subcolumns.size() ; ++j) {
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SubColumn& col = subcolumns[j];
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if (x >= col.offset.x && y >= col.offset.y && x < col.size.x + col.offset.x && y < col.size.y + col.offset.y) {
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// clicked on this column
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subcolumn = j;
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break;
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}
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}
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select(item, subcolumn);
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}
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ev.Skip(); // focus
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}
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void GalleryList::onLeftDClick(wxMouseEvent& ev) {
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sendEvent(EVENT_GALLERY_ACTIVATE);
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}
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void GalleryList::onChar(wxKeyEvent& ev) {
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SubColumn& col = subcolumns[active_subcolumn];
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switch (ev.GetKeyCode()) {
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case WXK_LEFT:
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if (direction == wxHORIZONTAL) {
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select(col.selection - column_count);
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} else if (column_count > 1) {
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select(col.selection - 1);
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} else {
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selectSubColumn(active_subcolumn - 1);
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}
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break;
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case WXK_RIGHT:
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if (direction == wxHORIZONTAL) {
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select(col.selection + column_count);
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} else if (column_count > 1) {
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select(col.selection + 1);
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} else {
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selectSubColumn(active_subcolumn + 1);
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}
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break;
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case WXK_UP:
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if (direction == wxVERTICAL) {
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select(col.selection - column_count);
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} else if (column_count > 1) {
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select(col.selection - 1);
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} else {
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selectSubColumn(active_subcolumn - 1);
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}
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break;
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case WXK_DOWN:
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if (direction == wxVERTICAL) {
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select(col.selection + column_count);
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} else if (column_count > 1) {
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select(col.selection + 1);
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} else {
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selectSubColumn(active_subcolumn + 1);
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}
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break;
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case WXK_TAB: {
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// send a navigation event to our parent, to select another control
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// we need this because tabs of wxWANTS_CHARS
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wxNavigationKeyEvent nev;
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nev.SetDirection(!ev.ShiftDown());
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GetParent()->ProcessEvent(nev);
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} break;
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case WXK_RETURN: {
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// same thing: press dialog box default button
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wxTopLevelWindow* tlw = wxDynamicCast(GetParent(), wxTopLevelWindow);
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wxButton* btn = tlw ? wxDynamicCast(tlw->GetDefaultItem(), wxButton) : nullptr;
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if ( btn && btn->IsEnabled() ) {
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// if we do have a default button, do press it
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wxCommandEvent evt(wxEVT_COMMAND_BUTTON_CLICKED, btn->GetId());
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btn->ProcessEvent(evt);
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}
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}break;
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}
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}
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wxSize GalleryList::DoGetBestSize() const {
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wxSize ws = GetSize(), cs = GetClientSize();
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const int w = item_size.x + 2*MARGIN + 2*BORDER;
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const int h = item_size.y + 2*MARGIN + 2*BORDER;
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if (direction == wxHORIZONTAL) {
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return wxSize(w, h * (int)column_count) + ws - cs;
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} else {
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return wxSize(w * (int)column_count, h) + ws - cs;
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}
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}
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void GalleryList::onPaint(wxPaintEvent&) {
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wxBufferedPaintDC dc(this);
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try {
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OnDraw(dc);
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} CATCH_ALL_ERRORS(false); // don't show message boxes in onPaint!
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}
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void GalleryList::OnDraw(DC& dc) {
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wxSize cs = GetClientSize();
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size_t start, end; // items to draw
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// number of visble items
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start = (size_t) max(0, visible_start / (mainSize(item_size) + SPACING)) * column_count;
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end = (size_t) max(0, visibleEnd() / (mainSize(item_size) + SPACING) + 1) * column_count;
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end = min(end, itemCount());
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// clear background
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dc.SetPen(*wxTRANSPARENT_PEN);
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dc.SetBrush(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
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dc.DrawRectangle(0, 0, cs.x, cs.y);
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// draw all visible items
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Color unselected = lerp(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW),
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wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT), 0.1);
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Color background = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
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bool has_focus = always_focused || FindFocus() == this;
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for (size_t i = start ; i < end ; ++i) {
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wxPoint pos = itemPos(i);
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// draw selection rectangle
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for (size_t j = 0 ; j < subcolumns.size() ; ++j) {
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const SubColumn& col = subcolumns[j];
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bool selected = i == col.selection;
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Color c = selected ? ( has_focus && j == active_subcolumn
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? wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT)
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: lerp(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW),
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wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT), subcolumnActivity(j))
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)
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: unselected;
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dc.SetPen(c);
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dc.SetBrush(saturate(lerp(background, c, 0.3), selected ? 0.5 : 0));
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dc.DrawRectangle(pos.x + col.offset.x - BORDER, pos.y + col.offset.y - BORDER,
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col.size.x + 2*BORDER, col.size.y + 2*BORDER);
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}
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// draw item
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drawItem(dc, pos.x, pos.y, i);
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}
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}
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void GalleryList::onFocus(wxFocusEvent&) {
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if (!always_focused) Refresh(false);
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}
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void GalleryList::sendEvent(WXTYPE type) {
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wxCommandEvent ev(type, GetId());
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ProcessEvent(ev);
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}
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// ----------------------------------------------------------------------------- : Event table
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BEGIN_EVENT_TABLE(GalleryList, wxPanel)
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EVT_LEFT_DOWN (GalleryList::onLeftDown)
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EVT_LEFT_DCLICK (GalleryList::onLeftDClick)
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EVT_MOUSEWHEEL (GalleryList::onMouseWheel)
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EVT_CHAR (GalleryList::onChar)
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EVT_SET_FOCUS (GalleryList::onFocus)
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EVT_KILL_FOCUS (GalleryList::onFocus)
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EVT_PAINT (GalleryList::onPaint)
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EVT_SIZE (GalleryList::onSize)
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EVT_SCROLLWIN (GalleryList::onScroll)
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END_EVENT_TABLE ()
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