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-rw-r--r--widget.c375
1 files changed, 375 insertions, 0 deletions
diff --git a/widget.c b/widget.c
new file mode 100644
index 000000000..5d4ff9e4d
--- /dev/null
+++ b/widget.c
@@ -0,0 +1,375 @@
+#include "stdafx.h"
+#include "ttd.h"
+#include "window.h"
+#include "gfx.h"
+#include "viewport.h"
+
+static Point HandleScrollbarHittest(Scrollbar *sb, int top, int bottom)
+{
+ Point pt;
+ int height, count, pos, cap;
+
+ top += 10;
+ bottom -= 9;
+
+ height = (bottom - top);
+
+ pos = sb->pos;
+ count = sb->count;
+ cap = sb->cap;
+
+ if (count != 0) top += height * pos / count;
+
+ if (cap > count) cap = count;
+ if (count != 0)
+ bottom -= (count - pos - cap) * height / count;
+
+ pt.x = top;
+ pt.y = bottom - 1;
+ return pt;
+}
+
+/*****************************************************
+ * Special handling for the scrollbar widget type.
+ * Handles the special scrolling buttons and other
+ * scrolling.
+ * Parameters:
+ * w - Window.
+ * wi - Pointer to the scrollbar widget.
+ * x - The X coordinate of the mouse click.
+ * y - The Y coordinate of the mouse click.
+ */
+
+void ScrollbarClickHandler(Window *w, const Widget *wi, int x, int y)
+{
+ int mi, ma, pos;
+ Scrollbar *sb;
+
+ if (wi->type == WWT_SCROLLBAR) {
+ // vertical scroller
+ w->flags4 &= ~WF_HSCROLL;
+ mi = wi->top;
+ ma = wi->bottom;
+ pos = y;
+ sb = &w->vscroll;
+ } else {
+ // horizontal scroller
+ assert(wi->type == WWT_HSCROLLBAR);
+ w->flags4 |= WF_HSCROLL;
+ mi = wi->left;
+ ma = wi->right;
+ pos = x;
+ sb = &w->hscroll;
+ }
+
+ if (pos <= mi+9) {
+ // Pressing the upper button?
+ if (!_demo_mode) {
+ w->flags4 |= WF_SCROLL_UP;
+ if (_scroller_click_timeout == 0) {
+ _scroller_click_timeout = 6;
+ if (sb->pos != 0) sb->pos--;
+ }
+ _left_button_clicked = false;
+ }
+ } else if (pos >= ma-10) {
+ // Pressing the lower button?
+ if (!_demo_mode) {
+ w->flags4 |= WF_SCROLL_DOWN;
+
+ if (_scroller_click_timeout == 0) {
+ _scroller_click_timeout = 6;
+ if ((byte)(sb->pos + sb->cap) < sb->count)
+ sb->pos++;
+ }
+ _left_button_clicked = false;
+ }
+ } else {
+ //
+ Point pt = HandleScrollbarHittest(sb, mi, ma);
+
+ if (pos < pt.x) {
+ sb->pos = max(sb->pos - sb->cap, 0);
+ } else if (pos > pt.y) {
+ sb->pos = min(
+ sb->pos + sb->cap,
+ max(sb->count - sb->cap, 0)
+ );
+ } else {
+ _scrollbar_start_pos = pt.x - mi - 9;
+ _scrollbar_size = ma - mi - 23;
+ w->flags4 |= WF_SCROLL_MIDDLE;
+ _scrolling_scrollbar = true;
+ _cursorpos_drag_start = _cursor.pos;
+ }
+ }
+
+ SetWindowDirty(w);
+}
+
+/*****************************************************
+ * Returns the index for the widget located at the given
+ * position relative to the window.
+ * Parameters:
+ * w - Window
+ * x/y - Window client coordinates
+ * Returns:
+ * A widget index, or -1 if no widget was found.
+ */
+int GetWidgetFromPos(Window *w, int x, int y)
+{
+ const Widget *wi;
+ int index, found_index = -1;
+
+ // Go through the widgets and check if we find the widget that the coordinate is
+ // inside.
+ for(index=0,wi=w->widget; wi->type != WWT_LAST; index++, wi++) {
+ if (wi->type == WWT_EMPTY || wi->type == WWT_FRAME)
+ continue;
+
+ if (x >= wi->left &&
+ x < wi->right &&
+ y >= wi->top &&
+ y < wi->bottom && !HASBIT(w->hidden_state,index)) {
+ found_index = index;
+ }
+ }
+
+ // Return the index
+ return found_index;
+}
+
+
+void DrawWindowWidgets(Window *w)
+{
+ const Widget *wi;
+ DrawPixelInfo *dpi = _cur_dpi;
+ Rect r;
+ uint32 dparam_backup[10];
+ uint32 cur_click, cur_disabled, cur_hidden;
+
+ if (w->desc_flags & WDF_RESTORE_DPARAM) COPY_OUT_DPARAM(dparam_backup, 0, lengthof(dparam_backup));
+
+ wi = w->widget;
+
+ cur_click = w->click_state;
+ cur_disabled = w->disabled_state;
+ cur_hidden = w->hidden_state;
+
+ do {
+ if (dpi->left > (r.right=/*w->left + */wi->right) ||
+ dpi->left + dpi->width <= (r.left=wi->left/* + w->left*/) ||
+ dpi->top > (r.bottom=/*w->top +*/ wi->bottom) ||
+ dpi->top + dpi->height <= (r.top = /*w->top +*/ wi->top) ||
+ (cur_hidden&1))
+ continue;
+
+ switch(wi->type&WWT_MASK) {
+ case WWT_PANEL:
+ case WWT_PANEL_2: {
+ int img;
+
+ DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color,
+ (cur_click & 1) ? 0x20 : 0);
+
+ if ((img=wi->unkA) != 0) {
+ if ((wi->type&WWT_MASK) == WWT_PANEL_2 && (cur_click&1)) img++;
+ DrawSprite(img, r.left+1, r.top+1);
+ }
+ goto draw_default;
+ }
+
+ case WWT_CLOSEBOX:
+ case WWT_4: {
+ DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color,
+ (cur_click & 1) ? 0x20 : 0);
+ }
+ /* fall through */
+
+ case WWT_5: {
+ StringID str = wi->unkA;
+
+ if ((wi->type&WWT_MASK) == WWT_4 && (cur_click&1)) str++;
+
+ DrawStringCentered((r.left + r.right+1)>>1, ((r.top+r.bottom + 1)>>1) - 5, str, 0);
+ goto restore_dparam;
+ }
+
+ case WWT_6: {
+ StringID str;
+ DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, 0x60);
+
+ if ((str = wi->unkA) != 0) {
+ DrawString(r.left+2, r.top+1, str, 0);
+ goto restore_dparam;
+ }
+ goto draw_default;
+ }
+
+ case WWT_MATRIX: {
+ int c, d, ctr;
+ int x, amt1, amt2;
+ int color;
+
+ DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color,
+ (cur_click & 1) ? 0x20 : 0);
+
+ c = (wi->unkA&0xFF);
+ amt1 = (wi->right - wi->left + 1) / c;
+
+ d = (wi->unkA >> 8);
+ amt2 = (wi->bottom - wi->top + 1) / d;
+
+ color = _color_list[wi->color&0xF].window_color_bgb;
+
+ x = r.left;
+ for(ctr=c; --ctr; ) {
+ x += amt1;
+ GfxFillRect(x, r.top+1, x, r.bottom-1, color);
+ }
+
+ x = r.top;
+ for(ctr=d; --ctr; ) {
+ x += amt2;
+ GfxFillRect(r.left+1, x, r.right-1, x, color);
+ }
+
+ color = _color_list[wi->color&0xF].window_color_1b;
+
+ x = r.left-1;
+ for(ctr=c; --ctr; ) {
+ x += amt1;
+ GfxFillRect(x, r.top+1, x, r.bottom-1, color);
+ }
+
+ x = r.top-1;
+ for(ctr=d; --ctr; ) {
+ x += amt2;
+ GfxFillRect(r.left+1, x, r.right-1, x, color);
+ }
+
+ goto draw_default;
+ }
+
+ // vertical scrollbar
+ case WWT_SCROLLBAR: {
+ Point pt;
+ int c1,c2;
+
+ // draw up/down buttons
+ DrawFrameRect(r.left, r.top, r.right, r.top+9, wi->color, (w->flags4 & (WF_SCROLL_UP | WF_HSCROLL)) == WF_SCROLL_UP ? 0x20 : 0);
+ DrawFrameRect(r.left, r.bottom-9, r.right, r.bottom, wi->color, (w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL)) == WF_SCROLL_DOWN ? 0x20 : 0);
+
+ // draw icons in up/down buttons
+ DoDrawString("\xA0", r.left+2, r.top, 0x10);
+ DoDrawString("\xAA", r.left+2, r.bottom-9, 0x10);
+
+ c1 = _color_list[wi->color&0xF].window_color_1a;
+ c2 = _color_list[wi->color&0xF].window_color_2;
+
+ // draw "shaded" background
+ GfxFillRect(r.left, r.top+10, r.right, r.bottom-10, c2);
+ GfxFillRect(r.left, r.top+10, r.right, r.bottom-10, c1 | 0x8000);
+
+ // draw shaded lines
+ GfxFillRect(r.left+2, r.top+10, r.left+2, r.bottom-10, c1);
+ GfxFillRect(r.left+3, r.top+10, r.left+3, r.bottom-10, c2);
+ GfxFillRect(r.left+7, r.top+10, r.left+7, r.bottom-10, c1);
+ GfxFillRect(r.left+8, r.top+10, r.left+8, r.bottom-10, c2);
+
+ pt = HandleScrollbarHittest(&w->vscroll, r.top, r.bottom);
+ DrawFrameRect(r.left, pt.x, r.right, pt.y, wi->color, (w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL)) == WF_SCROLL_MIDDLE ? 0x20 : 0);
+ break;
+ }
+
+ // horizontal scrollbar
+ case WWT_HSCROLLBAR: {
+ Point pt;
+ int c1,c2;
+
+ DrawFrameRect(r.left, r.top, r.left + 9, r.bottom, wi->color, (w->flags4 & (WF_SCROLL_UP | WF_HSCROLL)) == (WF_SCROLL_UP | WF_HSCROLL) ? 0x20 : 0);
+ DrawFrameRect(r.right-9, r.top, r.right, r.bottom, wi->color, (w->flags4 & (WF_SCROLL_DOWN | WF_HSCROLL)) == (WF_SCROLL_DOWN | WF_HSCROLL) ? 0x20 : 0);
+
+ // draw icons in up/down buttons
+ DoDrawString("\xA0", r.left+1, r.top+1, 0x10);
+ DoDrawString("\xAA", r.right-8, r.top+1, 0x10);
+
+ c1 = _color_list[wi->color&0xF].window_color_1a;
+ c2 = _color_list[wi->color&0xF].window_color_2;
+
+ // draw "shaded" background
+ GfxFillRect(r.left+10, r.top, r.right-10, r.bottom, c2);
+ GfxFillRect(r.left+10, r.top, r.right-10, r.bottom, c1 | 0x8000);
+
+ // draw shaded lines
+ GfxFillRect(r.left+10, r.top+2, r.right-10, r.top+2, c1);
+ GfxFillRect(r.left+10, r.top+3, r.right-10, r.top+3, c2);
+ GfxFillRect(r.left+10, r.top+7, r.right-10, r.top+7, c1);
+ GfxFillRect(r.left+10, r.top+8, r.right-10, r.top+8, c2);
+
+ // draw actual scrollbar
+ pt = HandleScrollbarHittest(&w->hscroll, r.left, r.right);
+ DrawFrameRect(pt.x, r.top, pt.y, r.bottom, wi->color, (w->flags4 & (WF_SCROLL_MIDDLE | WF_HSCROLL)) == (WF_SCROLL_MIDDLE | WF_HSCROLL) ? 0x20 : 0);
+
+ break;
+ }
+
+ case WWT_FRAME: {
+ int c1,c2;
+ int x2 = 0;
+
+ if (wi->unkA != 0) {
+ x2 = DrawString(r.left+6, r.top, wi->unkA, 0);
+ }
+
+ c1 = _color_list[wi->color].window_color_1a;
+ c2 = _color_list[wi->color].window_color_2;
+
+ //Line from upper left corner to start of text
+ GfxFillRect(r.left, r.top+4, r.left+4,r.top+4, c1);
+ GfxFillRect(r.left+1, r.top+5, r.left+4,r.top+5, c2);
+
+ // Line from end of text to upper right corner
+ GfxFillRect(x2, r.top+4, r.right-1,r.top+4,c1);
+ GfxFillRect(x2, r.top+5, r.right-2,r.top+5,c2);
+
+ // Line from upper left corner to bottom left corner
+ GfxFillRect(r.left, r.top+5, r.left, r.bottom-1, c1);
+ GfxFillRect(r.left+1, r.top+6, r.left+1, r.bottom-2, c2);
+
+ //Line from upper right corner to bottom right corner
+ GfxFillRect(r.right-1, r.top+5, r.right-1, r.bottom-2, c1);
+ GfxFillRect(r.right, r.top+4, r.right, r.bottom-1, c2);
+
+ GfxFillRect(r.left+1, r.bottom-1, r.right-1, r.bottom-1, c1);
+ GfxFillRect(r.left, r.bottom, r.right, r.bottom, c2);
+
+ goto restore_dparam;
+ }
+
+ case WWT_CAPTION: {
+ DrawFrameRect(r.left, r.top, r.right, r.bottom, wi->color, 0x10);
+ DrawFrameRect(r.left+1, r.top+1, r.right-1, r.bottom-1, wi->color, (w->caption_color == 0xFF) ? 0x60 : 0x70);
+
+ if (w->caption_color != 0xFF) {
+ GfxFillRect(r.left+2, r.top+2, r.right-2, r.bottom-2, _color_list[_player_colors[w->caption_color]].window_color_1b);
+ }
+
+ DrawStringCentered( (r.left+r.right+1)>>1, r.top+2, wi->unkA, 0x84);
+restore_dparam:;
+ if (w->desc_flags & WDF_RESTORE_DPARAM) COPY_IN_DPARAM(0, dparam_backup, lengthof(dparam_backup));
+draw_default:;
+ if (cur_disabled & 1) {
+ GfxFillRect(r.left+1, r.top+1, r.right-1, r.bottom-1, _color_list[wi->color&0xF].unk2 | 0x8000);
+ }
+ }
+ }
+ } while (cur_click>>=1, cur_disabled>>=1, cur_hidden >>= 1, (++wi)->type != WWT_LAST);
+
+
+ if (w->flags4 & WF_WHITE_BORDER_MASK) {
+ //DrawFrameRect(w->left, w->top, w->left + w->width-1, w->top+w->height-1, 0xF, 0x10);
+ DrawFrameRect(0, 0, w->width-1, w->height-1, 0xF, 0x10);
+ }
+
+}
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