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Demo: Custom Rendering: Tweak so end of line can be dropped outside of canvas, more pleasing.

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This commit is contained in:
ocornut 2016-11-06 18:13:14 +01:00
parent 907dd2ed20
commit 357167f917
1 changed files with 8 additions and 8 deletions
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16
imgui_demo.cpp
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@ -2041,21 +2041,21 @@ static void ShowExampleAppCustomRendering(bool* p_open)
bool adding_preview = false; bool adding_preview = false;
ImGui::InvisibleButton("canvas", canvas_size); ImGui::InvisibleButton("canvas", canvas_size);
ImVec2 mouse_pos_in_canvas = ImVec2(ImGui::GetIO().MousePos.x - canvas_pos.x, ImGui::GetIO().MousePos.y - canvas_pos.y);
if (adding_line)
{
adding_preview = true;
points.push_back(mouse_pos_in_canvas);
if (!ImGui::GetIO().MouseDown[0])
adding_line = adding_preview = false;
}
if (ImGui::IsItemHovered()) if (ImGui::IsItemHovered())
{ {
ImVec2 mouse_pos_in_canvas = ImVec2(ImGui::GetIO().MousePos.x - canvas_pos.x, ImGui::GetIO().MousePos.y - canvas_pos.y);
if (!adding_line && ImGui::IsMouseClicked(0)) if (!adding_line && ImGui::IsMouseClicked(0))
{ {
points.push_back(mouse_pos_in_canvas); points.push_back(mouse_pos_in_canvas);
adding_line = true; adding_line = true;
} }
if (adding_line)
{
adding_preview = true;
points.push_back(mouse_pos_in_canvas);
if (!ImGui::GetIO().MouseDown[0])
adding_line = adding_preview = false;
}
if (ImGui::IsMouseClicked(1) && !points.empty()) if (ImGui::IsMouseClicked(1) && !points.empty())
{ {
adding_line = adding_preview = false; adding_line = adding_preview = false;