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Metrics window: calculate bounding box of actual vertices when hovering a draw list.

pull/264/head
ocornut 9 years ago
parent
9db4b35168
commit
5782c69c2a
1 changed files with 10 additions and 2 deletions
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  1. 12
      imgui.cpp

12
imgui.cpp
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@ -1080,6 +1080,7 @@ struct ImRect // 2D axis aligned bounding-box
void Expand(const ImVec2& amount) { Min.x -= amount.x; Min.y -= amount.y; Max.x += amount.x; Max.y += amount.y; }
void Reduce(const ImVec2& amount) { Min.x += amount.x; Min.y += amount.y; Max.x -= amount.x; Max.y -= amount.y; }
void Clip(const ImRect& clip) { Min.x = ImMax(Min.x, clip.Min.x); Min.y = ImMax(Min.y, clip.Min.y); Max.x = ImMin(Max.x, clip.Max.x); Max.y = ImMin(Max.y, clip.Max.y); }
void Round() { Min.x = (float)(int)Min.x; Min.y = (float)(int)Min.y; Max.x = (float)(int)Max.x; Max.y = (float)(int)Max.y; }
ImVec2 GetClosestPoint(ImVec2 p, bool on_edge) const
{
if (!on_edge && Contains(p))
@ -12239,7 +12240,9 @@ void ImGui::ShowMetricsWindow(bool* opened)
}
if (!node_opened)
return;
for (const ImDrawCmd* pcmd = draw_list->commands.begin(); pcmd < draw_list->commands.end(); pcmd++)
int elem_offset = 0;
for (const ImDrawCmd* pcmd = draw_list->commands.begin(); pcmd < draw_list->commands.end(); elem_offset += pcmd->elem_count, pcmd++)
if (pcmd->user_callback)
ImGui::BulletText("Callback %p, user_data %p", pcmd->user_callback, pcmd->user_callback_data);
else
@ -12247,8 +12250,13 @@ void ImGui::ShowMetricsWindow(bool* opened)
ImGui::BulletText("Draw %d indexed vtx, tex = %p, clip_rect = (%d,%d)..(%d,%d)", pcmd->elem_count, pcmd->texture_id, (int)pcmd->clip_rect.x, (int)pcmd->clip_rect.y, (int)pcmd->clip_rect.z, (int)pcmd->clip_rect.w);
if (show_clip_rects && ImGui::IsItemHovered())
{
ImRect clip_rect = pcmd->clip_rect;
ImRect vtxs_rect;
for (int i = elem_offset; i < elem_offset + (int)pcmd->elem_count; i++)
vtxs_rect.Add(draw_list->vtx_buffer[draw_list->idx_buffer[i]].pos);
GImGui->OverlayDrawList.PushClipRectFullScreen();
GImGui->OverlayDrawList.AddRect(ImVec2(pcmd->clip_rect.x, pcmd->clip_rect.y), ImVec2(pcmd->clip_rect.z, pcmd->clip_rect.w), ImColor(255,255,0));
clip_rect.Round(); GImGui->OverlayDrawList.AddRect(clip_rect.Min, clip_rect.Max, ImColor(255,255,0));
vtxs_rect.Round(); GImGui->OverlayDrawList.AddRect(vtxs_rect.Min, vtxs_rect.Max, ImColor(255,0,255));
GImGui->OverlayDrawList.PopClipRect();
}
}

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