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@ -5,6 +5,9 @@
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#include "viewport.h"
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#include "console.h"
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// delta between mouse cursor and upper left corner of dragged window
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static Point _drag_delta;
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void HandleButtonClick(Window *w, byte widget)
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{
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w->click_state |= (1 << widget);
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@ -691,50 +694,116 @@ bool HandlePopupMenu()
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bool HandleWindowDragging()
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{
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Window *w;
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int x, y, t;
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// Get out immediately if no window is being dragged at all.
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if (!_dragging_window)
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return true;
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// Otherwise find the window...
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for(w=_windows; w != _last_window; w++) {
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if (w->flags4&(WF_DRAGGING|WF_SIZING)) {
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for (w = _windows; w != _last_window; w++) {
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if (w->flags4 & WF_DRAGGING) {
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const Window *v;
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int x;
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int y;
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int nx;
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int ny;
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// Stop the dragging if the left mouse button was released
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if (!_left_button_down) {
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w->flags4 &= ~(WF_DRAGGING | WF_SIZING);
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w->flags4 &= ~WF_DRAGGING;
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break;
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}
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// Otherwise calculate the delta position.
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x = _cursor.pos.x;
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y = clamp2(_cursor.pos.y, 23, _screen.height-12);
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t = _cursorpos_drag_start.x; _cursorpos_drag_start.x = x; x-=t;
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t = _cursorpos_drag_start.y; _cursorpos_drag_start.y = y; y-=t;
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SetWindowDirty(w);
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// No movement?
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if (x == 0 && y == 0)
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return false;
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x = _cursor.pos.x + _drag_delta.x;
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y = _cursor.pos.y + _drag_delta.y;
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nx = x;
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ny = y;
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if (_patches.window_snap_radius != 0) {
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uint hsnap = _patches.window_snap_radius;
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uint vsnap = _patches.window_snap_radius;
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uint delta;
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// Snap at screen borders
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// Left screen border
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delta = abs(x);
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if (delta <= hsnap) {
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nx = 0;
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hsnap = delta;
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}
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// Mark the old position dirty
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SetWindowDirty(w);
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// Right screen border
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delta = abs(_screen.width - x - w->width);
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if (delta <= hsnap) {
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nx = _screen.width - w->width;
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hsnap = delta;
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}
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if (w->flags4 & WF_SIZING) {
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// Size the window
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w->width += x;
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w->height += y;
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} else {
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// Move the window and viewport
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w->left += x;
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w->top += y;
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if (w->viewport) {
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w->viewport->left += x;
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w->viewport->top += y;
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// Top of screen
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delta = abs(y);
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if (delta <= vsnap) {
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ny = 0;
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vsnap = delta;
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}
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// Bottom of screen
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delta = abs(_screen.height - y - w->height);
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if (delta <= vsnap) {
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ny = _screen.height - w->height;
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vsnap = delta;
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}
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// Snap at other windows
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for (v = _windows; v != _last_window; ++v) {
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if (v == w) continue; // Don't snap at yourself
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if (y + w->height > v->top && y < v->top + v->height) {
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// Your left border <-> other right border
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delta = abs(v->left + v->width - x);
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if (delta <= hsnap) {
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nx = v->left + v->width;
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hsnap = delta;
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}
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// Your right border <-> other left border
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delta = abs(v->left - x - w->width);
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if (delta <= hsnap) {
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nx = v->left - w->width;
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hsnap = delta;
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}
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}
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if (x + w->width > v->left && x < v->left + v->width) {
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// Your top border <-> other bottom border
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delta = abs(v->top + v->height - y);
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if (delta <= vsnap) {
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ny = v->top + v->height;
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vsnap = delta;
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}
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// Your bottom border <-> other top border
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delta = abs(v->top - y - w->height);
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if (delta <= vsnap) {
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ny = v->top - w->height;
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vsnap = delta;
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}
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}
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}
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}
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// And also mark the new position dirty.
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// Make sure the window doesn't leave the screen
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// 13 is the height of the title bar
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nx = clamp(nx, 13 - w->width, _screen.width - 13);
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ny = clamp(ny, 0, _screen.height - 13);
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if (w->viewport != NULL) {
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w->viewport->left += nx - w->left;
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w->viewport->top += ny - w->top;
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}
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w->left = nx;
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w->top = ny;
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SetWindowDirty(w);
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return false;
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}
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@ -748,7 +817,8 @@ Window *StartWindowDrag(Window *w)
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{
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w->flags4 |= WF_DRAGGING;
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_dragging_window = true;
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_cursorpos_drag_start = _cursor.pos;
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_drag_delta.x = w->left - _cursor.pos.x;
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_drag_delta.y = w->top - _cursor.pos.y;
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w = BringWindowToFront(w);
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DeleteWindowById(WC_DROPDOWN_MENU, 0);
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return w;
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