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Internals: Added SetNextWindowScroll() (#1526)

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This commit is contained in:
omar 2020-04-16 14:07:40 +02:00
parent 1fd9e131e4
commit 3233fbff0e
2 changed files with 25 additions and 1 deletions
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21
imgui.cpp
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@ -5488,6 +5488,7 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
UpdateWindowParentAndRootLinks(window, flags, parent_window); UpdateWindowParentAndRootLinks(window, flags, parent_window);
// Process SetNextWindow***() calls // Process SetNextWindow***() calls
// (FIXME: Consider splitting the HasXXX flags into X/Y components
bool window_pos_set_by_api = false; bool window_pos_set_by_api = false;
bool window_size_x_set_by_api = false, window_size_y_set_by_api = false; bool window_size_x_set_by_api = false, window_size_y_set_by_api = false;
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasPos) if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasPos)
@ -5512,6 +5513,19 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
window_size_y_set_by_api = (window->SetWindowSizeAllowFlags & g.NextWindowData.SizeCond) != 0 && (g.NextWindowData.SizeVal.y > 0.0f); window_size_y_set_by_api = (window->SetWindowSizeAllowFlags & g.NextWindowData.SizeCond) != 0 && (g.NextWindowData.SizeVal.y > 0.0f);
SetWindowSize(window, g.NextWindowData.SizeVal, g.NextWindowData.SizeCond); SetWindowSize(window, g.NextWindowData.SizeVal, g.NextWindowData.SizeCond);
} }
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasScroll)
{
if (g.NextWindowData.ScrollVal.x >= 0.0f)
{
window->ScrollTarget.x = g.NextWindowData.ScrollVal.x;
window->ScrollTargetCenterRatio.x = 0.0f;
}
if (g.NextWindowData.ScrollVal.y >= 0.0f)
{
window->ScrollTarget.y = g.NextWindowData.ScrollVal.y;
window->ScrollTargetCenterRatio.y = 0.0f;
}
}
if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasContentSize) if (g.NextWindowData.Flags & ImGuiNextWindowDataFlags_HasContentSize)
window->ContentSizeExplicit = g.NextWindowData.ContentSizeVal; window->ContentSizeExplicit = g.NextWindowData.ContentSizeVal;
else if (first_begin_of_the_frame) else if (first_begin_of_the_frame)
@ -6513,6 +6527,13 @@ void ImGui::SetNextWindowContentSize(const ImVec2& size)
g.NextWindowData.ContentSizeVal = size; g.NextWindowData.ContentSizeVal = size;
} }
void ImGui::SetNextWindowScroll(const ImVec2& scroll)
{
ImGuiContext& g = *GImGui;
g.NextWindowData.Flags |= ImGuiNextWindowDataFlags_HasScroll;
g.NextWindowData.ScrollVal = scroll;
}
void ImGui::SetNextWindowCollapsed(bool collapsed, ImGuiCond cond) void ImGui::SetNextWindowCollapsed(bool collapsed, ImGuiCond cond)
{ {
ImGuiContext& g = *GImGui; ImGuiContext& g = *GImGui;

5
imgui_internal.h
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@ -948,7 +948,8 @@ enum ImGuiNextWindowDataFlags_
ImGuiNextWindowDataFlags_HasCollapsed = 1 << 3, ImGuiNextWindowDataFlags_HasCollapsed = 1 << 3,
ImGuiNextWindowDataFlags_HasSizeConstraint = 1 << 4, ImGuiNextWindowDataFlags_HasSizeConstraint = 1 << 4,
ImGuiNextWindowDataFlags_HasFocus = 1 << 5, ImGuiNextWindowDataFlags_HasFocus = 1 << 5,
ImGuiNextWindowDataFlags_HasBgAlpha = 1 << 6 ImGuiNextWindowDataFlags_HasBgAlpha = 1 << 6,
ImGuiNextWindowDataFlags_HasScroll = 1 << 7
}; };
// Storage for SetNexWindow** functions // Storage for SetNexWindow** functions
@ -962,6 +963,7 @@ struct ImGuiNextWindowData
ImVec2 PosPivotVal; ImVec2 PosPivotVal;
ImVec2 SizeVal; ImVec2 SizeVal;
ImVec2 ContentSizeVal; ImVec2 ContentSizeVal;
ImVec2 ScrollVal;
bool CollapsedVal; bool CollapsedVal;
ImRect SizeConstraintRect; ImRect SizeConstraintRect;
ImGuiSizeCallback SizeCallback; ImGuiSizeCallback SizeCallback;
@ -1703,6 +1705,7 @@ namespace ImGui
IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name); IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name);
// Scrolling // Scrolling
IMGUI_API void SetNextWindowScroll(const ImVec2& scroll); // Use -1.0f on one axis to leave as-is
IMGUI_API void SetScrollX(ImGuiWindow* window, float new_scroll_x); IMGUI_API void SetScrollX(ImGuiWindow* window, float new_scroll_x);
IMGUI_API void SetScrollY(ImGuiWindow* window, float new_scroll_y); IMGUI_API void SetScrollY(ImGuiWindow* window, float new_scroll_y);
IMGUI_API void SetScrollFromPosX(ImGuiWindow* window, float local_x, float center_x_ratio = 0.5f); IMGUI_API void SetScrollFromPosX(ImGuiWindow* window, float local_x, float center_x_ratio = 0.5f);